Ken Wohletz Publications:

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Journal, Books and Professional Reports, Recent Manuscripts, Abstracts


Journal Articles, Books, and Professional Reports

Wohletz KH, Holloway JR, Cross C, and Wilshire, HG, 1977, San Carlos, In: Second International Kimberlite Conference Guidebook, Basalt Nodule Guide, 5-9.

Wohletz KH, 1978, The eruptive mechanism of the Peridot Mesa Vent, San Carlos, Arizona. In: Guidebook to the Geology of Central Arizona (D. M. Burt and T. L. Péwé, Eds), State of Arizona Bureau of Geology and Mineral Technology, Special Paper 2: 167-176.

West F, Heiken G, Homouth R, Peterson R, Crowe B, and Wohletz K, 1978, Tilts associated with volcanic activity, Guadeloupe, F.W.I., Fall 1976. Los Alamos National Laboratory Report LA-7500-MS, 10 p.

Wohletz KH and Sheridan MF, 1979, A model of pyroclastic surge. In: Ash-Flow Tuffs ( CE Chapin and WE Elston, Eds) Geological Society of America Special Paper 180: 177-194.

Sheridan MF, Wohletz KH, Ward MB, and Satkin RL, 1979, The geologic setting of Castle Hot Springs, Arizona. Geothermal Resources Council Transactions 3: 643-645.

Heiken G, Wohletz K, Crowe B, McGetchin T, West F, Eichelberger J, Bartram D, and Petersen R, 1980, Phreatic eruption clouds: the activity of La Soufrière de Guadeloupe, F.W.I., August-October 1976. Bulletin of Volcanology 43-2: 383-395.

Satkin RL, Wohletz KH, and Sheridan MF, 1980, Water geochemistry at Castle Hot Springs, Arizona. Geothermal Resources Council Trans 4: 177-180.

Sheridan MF, Satkin RL, and Wohletz KH, 1980, Geothermal resource evaluation at Castle Hot Spring, Arizona. US Department of Energy Open File Rep, 42p.

Sheridan MF and Wohletz KH, 1981, Hydrovolcanic explosions: the systematics of water-tephra equilibration. Science 212: 1387-1389.

Wohletz KH and Sheridan MF, 1981, Rampart crater ejecta: experiments and analysis of melt-water interactions. Reports of the Planetary Geology Program 1980-1981, NASA Tech Memo 82385, 134-135.

Sheridan MF, Wohletz KH, and Moyer TC, 1981, Preliminary report on the pyroclastic products of Volcano. Memorie de la Societa Astronomica Italiana 52: 523-527.

Wohletz K and Krinsley, D, 1982, Scanning electron microscopy of basaltic hydromagmatic ash. Los Alamos National Laboratory Report, LA-UR 82-1433, 26 pp.

Wohletz KH and Sheridan MF, 1982, Melt-water interactions: series II experimental design. Reports of the Planetary Geology Program 1981-1982, NASA Tech Memo 84211, 169-171.

Wohletz KH and Sheridan MF, 1983, Hydrovolcanic explosions II. Evolution of basaltic tuff rings and tuff cones. American Journal of Science 283: 385-413.

Wohletz KH, 1983, Volcanic hazards: Los Alamos National Laboratory concept paper. Los Alamos National Laboratory Report LA-UR-83-1225, 20 pp.

Wohletz KH and Sheridan MF, 1983, Martian rampart crater ejecta: experiments and analysis of melt-water interaction. Icarus 56: 15-37.

Sheridan MF and Wohletz KH, 1983, Implications of large-scale melt-water interactions: particle characteristics and dispersal patterns. Reports of the Geology program 1982-1983, NASA Tech Memo 85127.

Wohletz KH, 1983, Mechanisms of hydrovolcanic pyroclast formation: size, scanning electron microscopy, and experimental studies. In: Explosive Volcanism (MF Sheridan and F Barberi, Eds) Journal of Volcanology and Geothermal Research 17: 31-63.

Sheridan MF and Wohletz KH, 1983, Hydrovolcanism: basic considerations. In: Explosive Volcanism (MF Sheridan and F Barberi, Eds) Journal of Volcanology and Geothermal Research 17: 1-29.

Sheridan MF and Wohletz KH, 1983, Origin of accretionary lapilli from the Pompeii and Avellino deposits of Vesuvius. In: Microbeam Analysis-1983 (R Gooley, Ed), San Francisco Press, 35-38.

Wohletz KH and McQueen RG, 1984, Volcanic and stratospheric dust-like particles produced by experimental water-melt interactions. Geology 12: 591-594.

Wohletz KH, McGetchin TR, Sandford-II MT, and Jones EM, 1984, Hydrodynamic aspects of caldera-forming eruptions: numerical models. Journal of Geophysical Research 89: 8269-8285.

Wohletz KH and Heiken G, 1984, Geologic evaluation of the Qualibou caldera geothermal resource, St. Lucia, West Indies. In: Evaluation of the St. Lucia Geothermal Resource: Geologic, Geophysical, and Hydrogeochemical Investigations, Los Alamos National Laboratory, LA-10234-MS, 3-42.

Wohletz KH and McQueen RG, 1984, Experimental studies of hydromagmatic volcanism. In: Explosive Volcanism: Inception, Evolution, and Hazards, Studies in Geophysics, National Academy Press, Washington, D.C., 158-169.

Wohletz KH and Smyth JR, 1984, Origin of a Roberts Victor sanidine-coesite grospydite: Thermodynamic considerations. In: Kimberlites II: The Mantle and Crust-Mantle Relationships (J Kornprobst, Ed), Elsevier Amsterdam, 33-42.

Gaffney ES, Wohletz KH, and McQueen RG, 1985, Measurement of groundshock in explosive centrifuge model tests. Proc. 2nd Symp. Interaction of Non-nuclear Munitions with Structures, Panama City Beach, Florida, 413-417.

Heiken G and Wohletz KH, 1985, Volcanic Ash. University of California Press, Berkeley, California, 245 pp.

Wohletz K, Heiken G, Ander M, Goff F, Vuataz F-D, and Wadge G, 1986, The Qualibou Caldera, St. Lucia, West Indies. Journal of Volcanology and Geothermal Research 27: 77-115.

Crowe BM, Wohletz KH, Vaniman DT, and Gladney E, 1986, Status of volcanic hazard studies for the Nevada Nuclear Waste Storage Investigations: Part II-FY1984. Los Alamos National Laboratory Report LA-9325-MS, Vol. II, 101 pp.

Wohletz K and Heiken G, 1986, Volcanic Ash. In: Institutional Supporting Research and Development 1985, Los Alamos National Laboratory Report LA-10600, 56-59.

Wohletz KH, 1986, Explosive magma-water interactions: Thermodynamics, explosion mechanisms, and field studies. Bulletin of Volcanology 48: 245-264.

Heiken G, Eppler D, and Wohletz K, 1986, Geology of the Platanares geothermal site, Departmento de Copán, Honduras, Central America. Los Alamos National Laboratory Report LA-10634-MS, 51 pp (English and Spanish).

Heiken G and Wohletz K, 1987, Tephra deposits associated with silicic domes and lava flows. In: The Emplacement of Silicic Domes and Lava Flows (JH Fink, Ed) Geol Soc Amer Spec Pap 212: 55-76.

Heiken G, Duffield W, Wohletz K, Priest S, Ramos N, Flores W, Eppler D, Ritchie A, and Escobar C, 1987, Geology of Platanares geothermal area, Copán, Honduras. Geothermal Resources Council Transactions 11: 263-266.

Sheridan MF, Wohletz KH, and Dehn J, 1987, Discrimination of grain-size subpopulations in pyroclastic deposits. Geology 15: 367-370.

Gaffney ES, Wohletz KH, House JW, and Brown JA, 1987, Modeling of buried explosions. In: Proceedings of the International Symposium on the Interaction of Conventional Munitions with Protective Structures, Mannheim, F. R. G., v. II, 797-810.

Brown JA, House JW, Wohletz KH, and Gaffney ES, 1987, Development for centrifuge modeling of buried explosions. In: Proceedings of the Fourth Symposium on Containment of Underground Nuclear Explosions, September 21- 25, 1987, Colorado Springs, CO, v. II, 401-413.

Elston WE and Wohletz, KH, 1987, Quaternary basalt fields of west-central New Mexico: McCarty's pahoehoe flow, Zuni Canyon aa flow, Zuni ice cave, Bandera crater, and Zuni Salt Lake maar. Geological Society of America Centennial Field Guide-Rocky Mountain Section, Vol. 2: 431-436.

Eppler DB, Heiken G, Wohletz K, Flores W, Paredes J, and Duffield W, 1987634, Geology of the Pavana geothermal area, Departamento de Choluteca, Honduras, Central America. Los Alamos National Laboratory, LA-10864-MS, 37 pp (English and Spanish).

Bayhurst GK, Finnegan DL, Hagan RC, Mason AS, Mroz EJ, Peach CL, Raymond R Jr, and Wohletz KH, 1988, Misty Picture dust and fallout characterization. Misty Picture Results Symposium, Defense Nuclear Agency/TDTT, Kirtland AFB, NM, December 7-10, 1987, Los Alamos National Laboratory Controlled Report LA-CP 87-172, 17 pp.

Wohletz KH, 1987, Chemical and textural surface features of pyroclasts from hydrovolcanic eruption sequences. In: Clastic Particles (J. R. Marshall, Ed.), Van Nostrand Reinhold, New York, Chapter 2-2 79-97.

Rose WI, Heiken G, Wohletz K, Eppler D, Barr S, Miller T, Chuan RL, and Symonds RB, 1988, Direct rate measurements of eruption plumes at Augustine volcano: a problem of scaling and uncontrolled variables. Journal of Geophysical Research 93: 4485-4499.

Heiken G, Wohletz K, and Eichelberger J, 1988, Fracture fillings and intrusive pyroclasts, Inyo Domes, California. Journal of Geophysical Research 93: 4335-4350.

Heiken G, Wohletz K, Eppler D, Duffield W, and Priest S, 1988, Summary of the geology of the Platanares geothermal area, Copán, Honduras. In: Recommendations Report for the Platanares Geothermal Site Development of Copán, Honduras, Los Alamos National Laboratory, LA-11410-MS, 7-13, (English and Spanish).

Eichelberger JC, Vogel TA, Younker LW, Miller CD, Heiken GH, and Wohletz KH, 1988, Structure and stratigraphy beneath a young phreatic vent: south Inyo crater, Long Valley caldera, California. Journal of Geophysical Research 93: 13,208-3,220.

Wohletz K, Raymond R Jr, Rawson G, and Mazzola T, 1988, Analyses of sweep-up, ejecta, and fallback material from the 4250 metric ton high explosive test "Misty Picture". Smoke/Obscurants Symposium XII, The John Hopkins University, LA-UR 88-1265, 18 pp.

Valentine GA and Wohletz KH, 1989, Numerical models of Plinian eruption columns and pyroclastic flows. Journal of Geophysical Research 94:1867-1887.

Heiken G, Wohletz K, Fisher RV, and Dethier DP, 1989, Maar volcanoes of White Rock Canyon-interaction of ground and surface water with basaltic volcanoes of the Rio Grande Rift, New Mexico. Field Trip 21I of the 1989 IAVCEI General Assembly, June 25-July 1, 1989, Santa Fe, NM, Los Alamos National Laboratory Report LA-UR 89-1917, 22 pp.

Baldridge WS, Perry FV, Nealey LD, Laughlin AW, and Wohletz KH, 1989, Field guide to excursion 8A: Oligocene and Holocene magmatism and extension tectonics, central Rio Grande rift and southeastern Colorado Plateau, New Mexico and Arizona. In: Field Excursions to Volcanic Terranes in the Western United States, Volume 1: Southern Rocky Mountain region (CE Chapin and J Zidek, Eds.), New Mexico Bureau of Mines & Mineral Resources Mem 46: 202-228.

Duffield WA, Heiken GH, Wohletz KH, Maassen LW, Dengo G, and McKee EH, 1989, Geology and geothermal potential of the Tecuamburro Volcano area of Guatemala. Geothermal Resources Council Transactions 13: 125-132.

Valentine GA and Wohletz KH, 1989, Environmental hazards of pyroclastic flows determined by numerical models. Geology., 17: 641-644.

Wohletz KH, Sheridan MF, and Brown WK, 1989, Particle size distributions and the sequential fragmentation/transport theory applied to volcanic ash. Journal of. Geophysical. Research 94: 15,703-15,721.

Duffield WA, Heiken GH, Wohletz KH, Maassen LW, Dengo G, and McKee EH, 1989, Geology and geothermal potential of the Tecuamburro volcano area of Guatemala. In: An Evaluation of the Geothermal Potential of the Tecuamburro Volcano Area of Guatemala (G Heiken and W Duffield, Eds.), Los Alamos National Laboratory Report LA-UR-89-2973, 5-49 and LA-11906-MS, 1-37.

Adams A, Wohletz K, Maassen L, Goff F, and Roldan A, 1989, The use of radon emanometry in the Tecuamburro geothermal prospect. In: An Evaluation of the Geothermal Potential of the Tecuamburro Volcano Area of Guatemala (G Heiken and W Duffield, Eds.), Los Alamos National Laboratory report LA-UR-89-2973, 50-61 and LA-11906-MS, 38-47.

Mason A, Finnegan D, Bayhurst G, Raymond R, Hagan R, Luedemann G, and Wohletz K, 1990, Dust collection and cloud characterization. In: MISERS GOLD Symposium Report, Defense Nuclear Agency Report POR 7352-3, 365-405

Mason AS, Finnegan DL, Bayhurst GK, Raymond R Jr, Luedemann G, and Wohletz KH, 1990, Misers Gold dust collection and cloud characterization. Fourth Airborne Geoscience Workshop, La Jolla, CA, January 29-February 1, 1991, LA-UR 90-2221, 15 pp.

Mason A, Bayhurst G, Raymond R Jr, and Wohletz K, 1990, Chemical analyses of archived nuclear cloud samples, Los Alamos National Laboratory Report LA-11848-MS, 100 pp.

Wohletz KH and Valentine GA, 1990, Computer simulations of explosive volcanic eruptions. In: Magma Transport and Storage (MP Ryan, Ed.), Wiley, London, Chapter 8, 113-135.

Heiken G, Ramos N, Duffield W, Musgrave J, Wohletz K, and others, 1991, Geology of the Platanares geothermal area, Departamento de Copán, Honduras. Journal of Volcanology and Geothermal Research, 45: 29-41.

Woods AW and Wohletz, KH, 1991, Co-ignimbrite eruption columns. Nature, 350: 225-227.

Kron A, Wohletz K, and Tubb J, 1991, Geothermal gradient contour map of the United States, Los Alamos National Laboratory. Includes insets of Alaska and Hawaii, [Scale: ca. 1:9,000,000]

Heiken G. and Wohletz, K, 1991, Fragmentation processes in explosive volcanic eruptions. In: Sedimentation in Volcanic Settings (R. V. Fisher and G. Smith Eds), Society of Sedimentary Geology Spec Pub 45:19-26.

Duffield WA, Heiken GH, Wohletz KH, and others, 1991, Geologic map of Tecuamburro volcano and surrounding area, Guatemala. U. S. Geol. Survey Map I-2197 (1:50,000, English and Spanish).

Valentine GA, Wohletz KH, and Kieffer SW, 1991, Sources of unsteady column dynamics in pyroclastic flow eruptions. Journal of Geophysical Research 96: 21,887-21,892.

Wohletz KH and Valentine GA, 1991, Supercomputer simulations of explosive volcanism. In: Prospects for the Simulation of Volcanic Eruptions (F Dobran and F Mulargia, Eds), Italy CNR Report VSG91-01, Giardini Press, Italy, 53-56.

Wohletz KH and Sheridan MF, 1991, ERUPT: A graphical simulation of volcanic eruptions for the personal computer. Los Alamos National Laboratory Report LA-UR-91-3205, 24 pp.

Valentine GA, Wohletz KH, and Kieffer SW, 1992, Effects of topography on facies and compositional zonations in caldera-related ignimbrites. Geological Society of America Bull 104: 154-165.

Orsi G, Gallo G, Heiken G, Wohletz K, Yu E, and Bonani G, 1992, A comprehensive study of pumice formation and dispersal: the Cretaio Tephra of Ischia (Italy). Journal of Volcanology and Geothermal Research 53: 329-354.

Sheridan MF and Wohletz KH, 1992, Animated computer models of volcanic eruptions, Geotimes, July, 15-17.

Wohletz K H, 1992, Models of volcanic hazards, Geothermal Resources Council Transactions 16, 535-519.

Duffield WA, Heiken GH, Wohletz KH, Maassen LW, Dengo G, McKee EH, and Castañeda O, 1992, Geology and geothermal potential of the Tecuamburro volcano area of Guatemala. Geothermics 21: 425-446.

Wohletz KH and Heiken G, 1992, Volcanology and Geothermal Energy. University of California Press, Berkeley, CA, 432 pp.

Vaniman D and Wohletz K, 1993, Reconnaissance geology of north-central LANL. Facility for Information Management, Analysis, and Display Map G101599, Los Alamos National Laboratory, Los Alamos, New Mexico (1:7800).

Wohletz KH, 1993, Measurement and analysis of rock fractures in the Tshirege Member of the Bandelier Tuff along Los Alamos Canyon adjacent to TA-21. In Phase Report 1A TA-21 Operable Unit RCRA Facility Investigation, Los Alamos National Laboratory Report LA-UR 93-2028, B1-B21.

Wohletz KH and Raymond R Jr, 1993, Atmospheric dust dispersal analyzed by granulometry of the MISERS GOLD event. Journal of Geophysical Research 98: 557-566.

Wohletz KH, 1993, Hidrovolcanism. In Nuevas Tendencias: La Volcanologia Actual (J Marti and V Araña, Eds.), Consejo Superior de Investigaciones Cientificas, Madrid, Chapter 3, 99-196.

Bayhurst GK, Wohletz KH, and Mason AS, 1994, A method for characterizing volcanic ash. In: Volcanic Ash and Aviation Safety, (T Casadevall, Ed.), U. S. Geological Survey Bulletin 2047, 13-18.

Goff SJ, Bussod GY, Wohletz K, Cort EG, Dreesen D, and Rowley JC, 1994, Rock melting: a specialty drilling system for improved hole stability in geothermal wells, Los Alamos National Laboratory Report LA-UR 94-3088, 7 pp.

Goff S, Bussod GY, Cort EG, Dreesen DS, Rowley JC, and Wohletz K 1995, Rock Melting: A specialty drilling system for improved hole stability in geothermal wells. International Geothermal Association, World Geothermal Congress 1995, 1-6.

Papike JJ, Wohletz KH, Servilla MS, 1994, Simulating silicic eruptions at Long Valley, California as a method to understand processes that influence eruption phenomena associated with caldera formation. IGPP progress report, October 1, 1993--August 31, 1994. Los Alamos National Laboratory Report LA-SUB--95-10, 4 pp.

Wohletz KH, Orsi G, and de Vita S, 1995, Eruptive mechanisms of the Neapolitan Yellow Tuff interpreted from stratigraphy, chemistry, and granulometry. Journal of Volcanology and Geothermal Research 67, 263-290.

Brown WK and Wohletz KH, 1995, A derivation of the Weibull distribution based on physical principles and its connection to the Rosin-Rammler and the lognormal distributions. Journal of Applied Physics 78(4), 2758-2763.

Wohletz KH, 1995, Measurement and analysis of rock fractures in the Tshirege Member of the Bandelier Tuff along Los Alamos Canyon adjacent to TA-21. In Earth Science Investigations for Environmental Restoration-Los Alamos National Laboratory Technical Area 21 (DE Broxton and PG Eller, eds), Los Alamos National Laboratory report LA-12934-MS, 19-31.

Wohletz KH, McQueen RG, and Morrissey M, 1995, Analysis of fuel-coolant interaction experimental analogs of hydrovolcanism, In: Intense Multiphase Interactions (T G Theofanous and M Akiyama, Eds.) Proceedings of US (NSF) Japan (JSPS) Joint Seminar, Santa Barbara, CA, June 8-13, 1995, 287-317. (LA-UR 94-0370)

Wohletz KH and Brown W, 1995, Particulate size distributions and sequential fragmentation/transport theory, In: Intense Multiphase Interactions (T G Theofanous and M Akiyama, Eds.) Proceedings of US (NSF) Japan (JSPS) Joint Seminar, Santa Barbara, CA, June 8-13, 1995, 235-241.

Heiken G, Wohletz K, Fisher RV, and Dethier DP, 1996, Field guide to the maar volcanoes of White Rock Canyon. In Field Excursions to the Jemez Mountains, New Mexico, New Mexico Bureau of Mines and Mineral Resources, Bull. 134, 56-72.

Wohletz KH, 1996, Fracture characterization of the Bandelier Tuff in OU-1098 (TA-2 and TA-41). Los Alamos National Laboratory Report LA-13194-MS, 19 pp.

Wohletz K, Kunkle T, and Hawkins W, 1996, KISMET Tungsten dispersal experiments. Los Alamos National Laboratory Report LA-132227, 18 pp.

Stimac J, Goff F, and Wohletz K, 1997, Thermal modeling of the Clear Lake magmatic system, California: Implications for hot dry rock geothermal development. Los Alamos National Laboratory Report LA-12778-MS, 38 pp.

Hawkins W and Wohletz K, 1997, Visual inspection for CTBT verification. Los Alamos National Laboratory Report LA-13244-MS, 37 pp.

Baldridge, WS., Fehler, MC, and Wohletz K, 1997, Lithospheric Processes. Los Alamos National Laboratory Report LA-97-3083, 9 pp.

Hawkins W and Wohletz K, 1997, Ground-based visual inspection for CTBT verification. Los Alamos National Laboratory Report LA-UR-97-2928, 37 pp.

Hawkins W, Wohletz K, and Barker D, 1997. Ground-Based Visual Observation Activities and Data Management: Equipment for the Initial Survey of the Inspection Area. In: Comprehensive Test Ban Treaty, On-Site Inspection Workshop - 2 (CTBT/PC/OSI/WSII/PR/16), CTBT PTO, Vienna, Austria.

Hawkins W, Wohletz K, and Barker D, 1998. Ground-Based Visual Observation Activities and Data Management: Equipment for the Initial Survey of the Inspection Area. In: Comprehensive Test Ban Treaty On-Site Inspection Workshop - 2 (CTBT/PC/OSI/WSII/PR/16, CTBT PTO, Vienna, Austria.

Wohletz KH and Hawkins WL, 1998. System for Data Management, Integration, Analysis, Display and Validation. In: Comprehensive Test Ban Treaty On-Site Inspection Workshop - 3 (CTBT/PC-7/OSI/WS-3/PR/16) , CT BT PTO , Vienna, Austria.

Wohletz KH, 1998 , Pyroclastic surges and compressible two-phase flow. In: From MAGMA to TEPHRA Modelling Physical Processes of Explosive Volcanic Eruptions, A Freundt (Ed.), Elsevier Science Publications, Amsterdam, 247-312.

Wohletz KH, Orsi G, and Civetta L, 1999, Thermal evolution of the Phlegraean magmatic system. Journal of Volcanology and Geothermal Research 91, 381-414.

Orsi G, Petrazzuoli S, and Wohletz KH, 1999, Mechanical and thermo-fluid behavior during unrest at the Campi Flegrei caldera (Italy). Journal of Volcanology and Geothermal Research 91, 453-470.

Morrissey M, Zimanowski B, Wohletz K, and Büttner R, 1999, Phreatomagmatic fragmentation. In: Encyclopedia of Volcanoes, H Sigurdsson (Ed.), Academic, San Diego, CA.

Hawkins W, Wohletz K, 1999. Underground Explosion Phenomena and Inspection Procedures. In: Comprehensive Test Ban Treaty, On-Site Inspection Workshop - 5 (CTBT/OSI/WS-5/PR/10), CTBT PTO, Farnborough, United Kingdom.

Wohletz, K., Wolfsberg, A., Olson, A., and Gable, C., 1999, Evaluating the Effects of Underground Nuclear Testing Below the Water Table on Groundwater and Radionuclide Migration in the Tuff Pile I Region of Yucca Flat: Numerical Simulations. EES-1 UGTA FY99 Report, Los Alamos National Laboratory, 31 pp.

Wohletz KH and Zimanowski B, 2000, Physics of phreatomagmatism, part I: explosion physics, Terra Nostra 2000/6, 515-523.

Zimanowski B and Wohletz KH, 2000, Physics of phreatomagmatism, part II: eruption physics, Terra Nostra 2000/6, 535-544.

Wohletz, K.H., 2000, Book Review: The physics of explosive volcanic eruptions. American Mineralogist 85, 267-268.

Ort MH, Wohletz K, Hooten JA, Neal CA, and McConnel VS, 2000, The Ukinrek maars eruption, Alaska, 1977: a natural laboratory for the study of phreatomagmatic processes at maars, Terra Nostra 2000/6, 396-400.

Stimac JA, Goff F, and Wohletz K, 2000, Thermal modeling of the Clear Lake magmatic-hydrothermal system, California. Geothermics 30, 349-390.

Taddeucci J and Wohletz KH, 2001, Temporal evolution of the Minoan eruption (Santorini, Greece), as recorded by its Plinian fall deposit and interlayered ash flow beds. Journal of Volcanology and Geothermal Research 109/4, 301-319.  

Wohletz, K. and Hawkins, W., 2002, Evaluation of monitoring technologies for nuclear-test sites, Los Alamos National Laboratory Controlled Publication LA-CP-02-544, 102 pp.

Wohletz KH, 2002, Water/magma interaction: some theory and experiments on peperite formation. Journal of Volcanology and Geothermal Research 114, 19-35..

Wohletz K and Hawkins, W., 2002, Evaluation of monitoring technologies for nuclear-test sites, Los Alamos National Laboratory Controlled Publication LA-CP-02-544, 100 pp.

Zimanowski B, Wohletz K, Dellino P, and Büttner, R., 2003, The volcanic ash problem. Journal of Volcanology and Geothermal Research 122, 1-5.

Wohletz, KH, 2003, Water/magma interaction: physical considerations for the deep submarine environment. American Geophysical Union Monograph 140, 25-49.

Blouin S, Costin L, and Wohletz K, 2003, Geotechnical Site Characteristics for HARD HAT and PILE DRIVER, In: Hard Rock Data Review and Procedings of the HRDR Workshop, Vol. 1, Defense Threat Reduction Agency, DTRIAC-SR-03-001-V1, Ft Belvoir, VA, 145-261.  

Wohletz, K. and Hawkins, W., 2004 Visual Observation for Test-Site Monitoring: Unicorn Transparency, Los Alamos National Laboratory Controlled Publication LA-CP-04-0765, 18 pp.

Wohletz, K, 2004, Tuff fracture characterization along Mortandad Canyon between OU-1114 and OU-1129, Los Alamos National Laboratory Report LA-UR-04-8337, 29 pp.

Sweeney, J., Wohletz K, and Hawkins H, 2004, A Staged Approach of Cooperative Test Site Monitoring, Los Alamos National Laboratory Controlled Publication LA-CP-03-0887, 102 pp.

Hawkins, W and Wohletz, K, 2004, Visual Monitoring of Nuclear Test Sites, Los Alamos National Laboratory Controlled Publication LA-CP-04-0070, 19 pp.  

Wohletz, K. and Hawkins, W., 2004 Visual Observation for Test-Site Monitoring: Unicorn Transparency, Los Alamos National Laboratory Controlled Publication LA-CP-04-0765, 18 pp.

Wohletz, K, 2004, Tuff fracture characterization along Mortandad Canyon between OU-1114 and OU-1129, Los Alamos National Laboratory Report LA-UR-04-8337, 29 pp.  

Wohletz K, Sweeney J, Vannoni M, Milbrath B, and Doyle J, 2005, Unicorn Transparency Monitoring, Los Alamos National Laboratory Controlled Publication LA-CP-05-0350, 14 pp.

Knauth, LP, Burt, DM, and Wohletz, KH, 2005, Impact origin of sediments at the Opportunity landing site on Mars, Nature 438, 1123-1128.

Wohletz K, Sweeney J, Vannoni M, Milbrath B, and Doyle J, 2005, Unicorn Transparency Monitoring, Los Alamos National Laboratory Controlled Publication LA-CP-05-0350, 14 pp.


Recent Manuscripts: Back to page top, Back to Ken Wohletz Home Page

Wohletz, K.H., 2006, Fractures in welded tuff in Heiken, G., ed., Tuffs—Their properties, uses, hydrology, and resources: Geological Society of America Special Paper 408, p. 17–31, doi: 10.1130/2006.2408(2.3).

Burt, D.M., Wohletz, K.H., and Knauth, L.P., 2006, Mars and mine dumps, EOS, Transactions American Geophysical Union 87(49), 549-552.  

Wohletz, K., 2007, Book Review: Volcanism in the Campania plain: Vesuvius, Campi Flegrei and ignimbrites, American Mineralogist 92, 985-986.

Wohletz K, Sussman A, and Hawkins W, 2007, Ground-Based Visual Observation Monitoring of Unicorn at U6c, Nevada Test Site, Los Alamos National Laboratory Controlled Publication LA-CP-07-0993, 64 pp.

Ogden, D.E., Wohletz, K.H., Glatzmaier, G.A., and Brodsky, E.E., 2008, Numerical simulation of volcanic jets: importance of vent overpressure, Journal of Geophysical Research 113, B02204, doi:10,1029/2007JB005133.

Ogden, D.E., Glatzmaier, G.A., and Wohletz, K.H., 2008, Effects of vent overpressure on buoyant eruption columns: implications for plume stability, Earth and Planetary Science Letters 268/3-4, 283-292, doi:10.1016/j.epsl.2008.01.014.

Burt, D.M.,. Knauth, L.P, Wohletz, K.H., and Sheridan, M.F., 2008, Surge deposit misidentification at Spor Mountain, Utah and elsewhere: A cautionary message for Mars, Journal of Volcanology and Geothermal Research 177, 755-759.  

Wohletz, K.H., Zimanowski, B., and Büttner, R., 2008, Magma-Water Interactions, Los Alamos National Laboratory Report LA-UR-08-0921, 41 pp.

Wohletz, K.H., Sussman, A., Sweeney, J. Lewis, J., Hinman-sweeney, E., Vannoni, M., Mori, R., Crawford, T., and Milbrath, B., 2008, Powder Gun Transparency Monitoring Plan, Los Alamos National Laboratory Controlled Publication LA-CP-08-01339, 36 pp.

Wohletz, K.H., Steedman, D., Giguere, P., and Zhang, D., 2008, PHO mitigation simulations using computational fluid and solid mechanics, Los Alamos National Laboratory Report LA-UR-08-07769, 10 pp.

Kieffer, S.W., Lu, X., McFarquhar, G., and Wohletz, K.H., 2009, Ice/Vapor ratio of Enceladus’s plume and thermodynamic constraints on the source region, Icarus 203, 238-241.

Huebner, W.F., Johnson, L.N., Boice, D.C., Bradley, P., Chocron, S., Ghosh, A., Giguere, P.T., Goldstein, R., Guzik, J.A., Keady, J.J., Mukherjee, J., Patrick, W., Plesko, C., Walker, J.D., and Wohletz, K., 2009, A comprehensive program for countermeasures against potentially hazardous objects (PHOs), Solar System Research 43(4), 334-342.


Abstracts: Back to page top, Back to Ken Wohletz Home Page

Wohletz KH and Sheridan MF, 1975, Base surge deposits of Crater Elegante, Sonora, Mexico. Journal of the Arizona Academy of Science 10: 44-45.

Wohletz KH and Sheridan MF, 1976, A model for base-surge deposits. Geological Society of America Abst with Prog 8(5): 645-646.

Wohletz KH and Sheridan MF, 1976, A model of transport and deposition from base surge of volcanic origin. In: Extended Abstracts Contributed to the Symposium on Planetary Cratering Mechanics, 157-159. The Lunar Science Institute.

Sheridan MF and Wohletz KH, 1977, A model of pyroclastic surge. Proceedings of the International Association of Volcanology and Chemistry of the Earth's Interior, ISDPRI/IAVCEI, Durham, England.

Sheridan MF and Wohletz KH, 1977, Morphology and development of surge blankets. NASA Planetary Geology Field Conference on Basaltic Volcanism, Snake River Plain, Idaho.

Wohletz KH and Patera ES, 1978, Petrology and eruptive mechanism of the Peridot Mesa Vent, San Carlos, Arizona. Geological Society of America Abst with Prog 10(3): 154.

Wohletz KH and Crowe BM, 1978, Development of lahars during the 1976 activity of La Soufrière de Guadeloupe, F.W.I. Geological Society of America Abst with Prog 10(3): 154.

Wohletz KH and Sheridan MF, 1979, Explosive hydromagmatic volcanism. Hawaiian Intraplate Volcanism Conference, Hilo, Hawaii.

Wohletz KH, 1979, Mechanism of hydromagmatic volcanism. Arizona-Nevada Academy of Science, Tempe, Arizona.

Wohletz KH, 1979, Evolution of tuff cones and tuff rings. Geological Society of America Abstracts with Programs 11(7): 543.

Wohletz KH, 1979, Experimental modeling of hydromagmatic volcanism. American Geophysical Union Transactions, EOS 61(6): 66.

Sheridan MF and Wohletz KH, 1980, The role of water in hydromagmatic explosions. American Geophysical Union Transactions, EOS 61(46): 1142.

Wohletz KH and Krinsley D, 1980, Scanning electron microscopic analysis of volcanic ash. Proceedings of the Eleventh Lunar and Planetary Science Conference, The Lunar and Planetary Institute, 1263-1264.

Wohletz KH, 1981, Scanning electron microscopy of basaltic ash. Geological Society of America Abstracts with Programs 13(7): 584.

Wohletz KH and McQueen RG, 1981, Experimental hydromagmatic volcanism. American Geophysical Union Transactions, EOS 62(45): 1085.

Wohletz KH and Smyth JR, 1982, Origin of a sanidine-coesite grospydite. Proceedings of the 3rd Intern Kimberlite Conference, Clermont-Ferrand, France, Terra Cognita 2: 220.

Wohletz KH, 1982, Development of surface chemical and textural trends on pyroclasts from hydrovolcanic eruption sequences. Proceedings of the Workshop on Characterization and Quantification of Surface Features on Clastic and Pyroclastic Particles, Tempe, Arizona, LA-UR-82-7776, Los Alamos National Laboratory Report LA-UR-82-7776.

Wohletz KH, 1982, Mechanisms of hydrovolcanic pyroclast formation: size, SEM, and experimental studies. Proceedings of the N.S.F. Workshop on Explosive Volcanism, Rome, Italy, Los Alamos National Laboratory Report LA-UR-82-1104.

Sheridan MF and Wohletz KH, 1982, Explosive volcanism: a synthesis. Proceedings of the N.S.F. Workshop on Explosive Volcanism, Rome, Italy, Los Alamos National Laboratory Report LA-UR-82-2848.

Wohletz KH, 1982, Mechanisms of hydrovolcanic pyroclast formation: size, shape, and experimental studies. American Geophysical Union Transactions, EOS 63(45); 1130.

Wohletz KH, 1983, Experimental melt-water interactions. Reports of the Geology Program 1982-1983, NASA Tech Memo 85127, 160-162.

Sheridan MF and Wohletz KH, 1983, Origin of accretionary lapilli from Pompeii and Avellino deposits of Vesuvius. 17th Annual Meet Microbeam Analysis Society, Phoenix, AZ, Los Alamos National Laboratory Report LA-UR 83-1012.

Wohletz KH, McGetchin TR, Sandford-II MT, and Jones EM, 1983, Hydrodynamics of the initial moments of a large Plinian ash flow eruption: a shock tube model. American Geophysical Union Transactions, EOS 64(45): 876.

Self S and Wohletz KH, 1983, A new look at the initiation and timing of the Krakatau 1883 eruption sequence. American Geophysical Union Transactions, EOS 64(45): 872.

Heiken G and Wohletz KH, 1983, Phreatomagmatic ash deposits associated with caldera collapse in a shallow submarine environment. American Geophysical Union Transactions, EOS 64(45): 876.

Heiken G and Wohletz KH, 1984, Tephra formation during emplacement and destruction of domes. Geological Society of America Abstracts with Programs 16(6): 536.

Wohletz KH and Sheridan MF, 1984, Tephra grain textures and blast wave phenomena. IAVCEI Explosive Volcanism Working Group Workshop on Volcanic Blasts, Mount St. Helens, Los Alamos National Laboratory Report LA-UR 84-2308.

Wohletz KH, McQueen RG, and Gaffney ES, 1984, Measurement of ground shock in explosive centrifuge model tests. 2nd Symposium on the Interaction of Non-nuclear Munitions with Structures, Panama City, Florida, Los Alamos National Laboratory Report LA-UR 84-2605.

Fisher RV, Heiken GH, Purtyman WD, and Wohletz KH, 1984, Cerro Del Rio, New Mexico, Maars. American Geophysical Union Transactions, EOS 65(45): 1145.

Wohletz K and Heiken G, 1985, The Qualibou Caldera, St. Lucia, West Indies. Proceedings of the International Association of Volcanology and Chemistry of the Earth's Interior, 1985 Sci Assem. Giardini Naxos, Italy.

Sheridan MF, Wohletz KH, and Dehn M, 1985, Discrimination and interpretation of subpopulations in grain-size analysis of pyroclastic surge deposits. American Geophysical Union Transactions, EOS 66(46): 1151.

Wohletz KH and Horn M, 1985, Dusty gas dynamics of pyroclastic flows. American Geophysical Union Transactions, EOS 66(46): 1151.

Heiken G, Aldrich J, Baldridge S, Bolivar S, Eppler D, Perry F, and Wohletz K, 1985, Preliminary geologic investigation on Honduras geothermal sites. American Geophysical Union Transactions, EOS 66(46): 1154.

Wohletz KH, 1986, Explosive magma-water interactions: thermodynamics, mixing mechanisms, and field studies. Proceedings of the International Assocociation of Volcanology and Chemistry of the Earth's Interior 1986 Congress, Auckland, New Zealand, 128.

Taylor BE and Wohletz KH, 1986, Oxygen isotope exchange in phreatomagmatic phenomena: experimental and natural studies. Proceedings of the International Assocociation of Volcanology and Chemistry of the Earth's Interior 1986 Congress, Auckland, New Zealand, 122.

Fisher RV, Heiken GH, and Wohletz KH, 1986. Base Surges. Proceedings of the International Assocociation of Volcanology and Chemistry of the Earth's Interior 1986 Congress Abst, 101.

Brown JA, House JW, Wohletz KH, and Gaffney ES, 1987, Development for centrifuge modeling of buried explosions. The Fourth Containment Symposium, Colorado Springs, CO, LAUR-87-879.

Rose WI, Heiken G, Wohletz K, Eppler D, Barr S, Miller T, Chuan RL, and Symonds RB, 1987, Direct rate measurements of Mt. St. Augustine eruption plumes: a problem of scaling up and uncontrolled variables. Hawaii Symposium on How Volcanoes Work, HVO, Hilo Hawaii, 212.

Heiken G, Wohletz K, Eichelberger J, 1987, Hydraulic fracturing in volcanoes: Inyo Craters, California. Hawaii Symposium on How Volcanoes Work, HVO, Hilo Hawaii, 103.

Wohletz KH, Sheridan MF, and Brown WK, 1987, Sequential fragmentation: a new model for analysis of size distributions. Geological Society of America Abstracts with Programs 19(7): 894.

Sheridan MF and Wohletz KH, 1988, Some numerical models useful for evaluating the danger of volcanic blasts and related phenomena. IAVCEI Working Group on Explosive Volcanism - West Indies Explosive Volcanism Workshop, March 6-16, 1989, Martinique and Guadeloupe, F.W.I.

Bayhurst GK, Wohletz KH, and others, 1987, Misty Picture dust and fallout characterization. Misty Picture Results Symposium, Defense Nuclear Agency/TDTT, Kirtland AFB, NM, December 7-10, 1987.

Valentine GA and Wohletz KH, 1987, Significance of exit pressure in plinian eruptions. American Geophysical Union Transactions, EOS, 68(44), 1535.

Eichelberger JC, Vogel TA, Younker LW, Miller CD, Heiken GH, and Wohletz KH, 1988, Structure and stratigraphy beneath a young phreatic vent: south Inyo crater, Long Valley caldera. American Geophysical Union Transactions EOS, 69(34), 816.

Heiken G and Wohletz K, 1988, A volcanological approach to geothermal prospecting. American Geophysical Union Transactions EOS 69(44): 1049.

Wohletz KH, Sheridan MF, and Brown WK, 1988, Particle size distributions and sequential fragmentation/transport theory applied to volcanic ash. American Geophysical Union Transactions EOS 69(44): 1199.

Valentine GA and Wohletz KH, 1988, Numerical models of pyroclastic flows. American Geophysical Union Transactions EOS 69(44): 1196.

Duffield W, Dengo G, Heiken G, Maassen L, Pinzon O, and Wohletz K, 1989, Geology of the Tecuamburro volcano geothermal area, Guatemala. Proceedings of. Energy and Mineral Potential of the Central American-Caribbean Region, Guatemala.

Wohletz KH and Valentine GA, 1989, Computer simulations of explosive volcanic eruptions. Abstracts of the 28th Intern Geological Congress, Washington, DC, July 9- 19, 1989, 3: 374-375. Los Alamos National Laboratory Report LA-UR 89-1938.

McQueen RG and Wohletz KH, 1989, Experimental Simulation of hydrovolcanic eruptions. Programs of the 1989 International Association of Volcanology and Chemistry of the Earth's Interior General Assembly, June 25-July 1, 1989, Santa Fe, NM, p. 40.

Wohletz KH, 1989, Vaporization and condensation of water during hydrovolcanic eruptions. Continental Magmatism Abstracts, 1989 International Association of Volcanology and Chemistry of the Earth's Interior General Assembly, Bull 131, New Mexico Bureau of Mines & Mineral Resources, 296.

Valentine GA and Wohletz KH, 1989, The importance of multiphase, compressible, and turbulent flow in eruption columns, pyroclastic flows and surges. Continental Magmatism Abstracts, 1989 IAVCEI General Assembly, Bull 131, New Mexico Bureau of Mines & Mineral Resources, 275.

Heiken G, Sheridan M, Wohletz K, and Duffield W, 1989, Textural distinction of silicic lavas and welded tuffs using processed scanning electron microscope images. Continental Magmatism Abstracts, 1989 IAVCEI General Assembly, Bull 131, New Mexico Bureau of Mines & Mineral Resources, 126.

Valentine G, Wohletz K, and Kieffer S, 1990, Numerical simulations of explosive eruptions within calderas. Proceedings of 1990 International Association of Volcanology and Chemistry of the Earth's Interior Congress, Mainz, FRG, LA-UR 90-809.

Morrissey M, Wohletz K, McQueen R, and Self S, 1990, Analysis of FCI analogs of hydrovolcanism. Proceedings of 1990 International Association of Volcanology and Chemistry of the Earth's Interior Congress, Mainz, FRG, LA-UR 90-1449.

Wohletz KH, 1990, The development of wet hydroclastic deposits. Geological Society of America Abstracts with Programs, Annual Meeting, Dallas, Texas, LA-UR 90-2449.

Mason AS, Bayhurst GK, and Wohletz KH, 1990, Redoubt ash sample from jet aircraft engine. American Geophysical Union Transactions EOS 71(43), 1710.

Murphy MT, Stottlemyre JA, Arthur RC, Gardner JN, Wohletz KH, and Bergantz GW, 1990, In situ vitrification (ISV) and magma: An environmental application of igneous petrology. T American Geophysical Union Transactions EOS 71(43), 1660.

Mason AS, Finnegan DL, Bayhurst GK, Raymond R Jr, Luedemann G, and Wohletz KH, 1990. Misers Gold dust collection and cloud characterization. Fourth Airborne Geoscience Workshop, La Jolla, California, January 29-February 1, 1991, 213-214.

Bayhurst GK, Mason AS, and Wohletz KH, 1991. Volcanic ash characterization. First International Symposium on Volcanic Ash and Aviation Safety, 9-11 July 1991, Seattle, WA, LA-UR 91-760.

Wohletz KH, 1991. Particle-size characterization by sequential fragmentation/transport theory. DOE/OAC Particle Workshop, 8-12 April, 1991, McClellan AFB, California.

Kieffer SW, Valentine GA, and Wohletz KH, 1991. Caldera eruptions on earth and Venus: numerical simulations. Geological Society of America Abstracts with Programs, San Diego, CA, October, 1991, LA-UR 91-2361.

Wohletz KH and Valentine GA, 1991. Supercomputer simulations of explosive volcanism. Abstracts for the Workshop on Prospects for the Simulation of Volcanic Eruptions, Naples, Italy, August 1991, LA-UR-92-3204.

Vaniman DT, Heiken G, Wohletz K, and Blacic, 1992. Palagonites and Martian soil simulants. NASA Tech Memo.

Wohletz KH, 1992. Physical aspects of water-magma interaction. Geological Society of America Penrose Conference on Fluid - Volcano Interactions, Kahneeta, Oregon, October 4 - 11, 1992.

Wohletz KH, 1992. Models of volcanic hazards. Geothermal Resources Council Annual Meeting, San Diego, CA, October 4-7, 1992.

Wohletz KH and Orsi G, 1993. The Neapolitan Yellow Tuff: Interpretation of eruptive mechanisms from stratigraphic, chemical and granulometric data. Proceedings of the International Association of Volcanology and Chemistry of the Earth's Interior 1993 General Assembly, Canberra, Australia, September 25 - October 1, 1993, p. 82.

Wohletz KH, 1993. ERUPT: A personal computer animation of volcanic activity. Proceedings of Int Assoc Volcanol Chem Earth's Int 1993 General Assembly, Canberra, Australia, September 25 - October 1, 1993, p. 123.

Smith G, Goff F., Baldridge S., Elston W., Heiken G., and Wohletz K., 1993. A volcanology summer field course. ,1993, Proceedings of Int Assoc Volcanol Chem Earth's Int 1993 General Assembly, Canberra, Australia, September 25 - October 1, 1993, p. 102.

Wohletz K, 1993. Experimental studies of pressure controls and geochemical effects of lava-water interaction. American Geophysical Union Transactions, EOS 74(43), 616.

Stimac JA and Wohletz KH, 1993. Bottoms-up anatexis: heat flow considerations and implications for mafic-felsic magma interactions. American Geophysical Union Transactions, EOS 74(43), 684-685.

Ort MH, Neal CA, McConnell VS, Wohletz KH, Duffield WA, and Lescinsky DT, 1993. Effects of prevailing wind on the distribution of surge and fallout deposits at Ukinrek Maars, Alaska. American Geophysical Union Transactions, EOS 74(43), 639.

Stimac J, Wohletz K, and Goff F, 1993. Magmatic and thermal structure of the crust in the Clear Lake area, California: implications for HDR development. Australian HDR development meeting in Sydney, Australia, October, 1993.

Wohletz KH, 1994. How much do magmas degas during explosive eruptions? a numerical approach. Geological Society of America Abstracts with Programs 26(7): A451-A452.

Servilla MS, Wohletz KH, and Papike, JJ, 1994. Numerical simulations predict different eruptive stages of the 720 ka Bishop Tuff at Long Valley caldera, California. Trans Amer Geophys Union, EOS 75(44), 704.

Ort MH, Wohletz KH, and Neal CA, 1994. Complex interaction of ground water and basaltic magma during the eruption of the Ukinrek maars, Alaska. Geological Society of America Abstracts with Programs 26(7): A378.

Ort MH, Wohletz KH, Neal CA and McConnell VS, 1995. Mechanics of Magma/Water Interaction, Ukinrek Maars, Alaska. International Union of Geophysics and Geodesy, Denver.

Wohletz KH, McQueen RG, and Morrissey M, 1995, Analysis of fuel-coolant interaction experimental analogs of hydrovolcanism, Proceedings of NSF/JSPS AMIGO-IMI Seminar, Santa Barbara, CA, June 8-13, 1995.

Wohletz KH and Brown W, 1995, Particulate size distributions and sequential fragmentation/transport theory, Proceedings of NSF/JSPS AMIGO-IMI Seminar, Santa Barbara, CA, June 8-13, 1995.

Wohletz KH, 1995. Application of SEM and granulometric data for modeling tephra eruption and emplacement mechanisms. Proceedings of the Taal Decade Volcano International Workshop, 23-27 October, 1995, Tagaytay City, Philippines, Philippines Institute of Volcanology and Seismology, 35.

Wohletz KH, Civetta L, and Orsi G, 1995. Models of the Campi Flegrei thermal regime constrain its magmatic history. American Geophysical Union Transactions, 1995 Fall Meeting, EOS, November 7, 1995, F673..

Wohletz KH, Civetta L, and Orsi G, 1995. Models of the Campi Flegrei thermal regime constrain its magmatic history. American Geophysical Union Transactions, 1995 Fall Meeting, EOS, November 7, 1995, F673..

Wohletz KH, Civetta L, and Orsi G, 1997. Models of the Campi Flegrei thermal regime constrain its magmatic history. IAVCEI, Puerto Vallarta, Mexico, 1997 General Assembly, Janurary 19-24, 1997, Abstracts, 156.

Wohletz KH, 1997. Pyroclastic surges and compressible two-phase flow. IAVCEI, Puerto Vallarta, Mexico, 1997 General Assembly, Short Course on Explosive Volcanism, Janurary 19-24, 1997,.

Hawkins W, Wohletz K, and Barker D, 1998. Ground-Based Visual Observation Activities and Data Management: Equipment for the Initial Survey of the Inspection Area. Comprehensive Test Ban Treaty On-Site Inspection Workshop - 2 (CTBT/PC/OSI/WSII/PR/16), Vienna, Austria, 18-24 November 1998.

Wohletz KH and Hawkins WL, 1998. System for Data Management, Integration, Analysis, Display and Validation. Comprehensive Test Ban Treaty, On-Site Inspection Workshop - 3 (CTBT/PC-7/OSI/WS-3/PR/16) , Vienna, Austria, 18-24 November 1998.

Taddeucci J and Wohletz KH, 1999. Magma fragmentation during the Plinian phase of the Minoan eruption (Santorini, Greece) as inferred by the deposit features and pyroclast textures.  Proceedings of the IUGG, IUGG 99, Birmingham, 18.-30. July, Abstracts Vol 2, B 170.

Zimanowski, B., Büttner, R., Caffier, and Wohletz, K., 1999: The ash problem: hydrodynamic versus brittle fragmentation. Proceedings of the IUGG, IUGG 99, Birmingham, 18.-30. July, Abstracts Vol 2, W/18-B3.

Wohletz KH, 2000, Were the Dark Ages triggered by volcano-related climate changes in the 6th century? EOS Trans Amer Geophys Union 48(81), F1305.

Wohletz KH and Zimanowski B, 2000, Physics of phreatomagmatism, part I: explosion physics, International Maar Conference, August 20-23, Daun, Germany.

Zimanowski B and Wohletz KH, 2000, Physics of phreatomagmatism, part II: eruption physics, International Maar Conference, August 20-23, Daun, Germany.

Ort MH, Wohletz K, Hooten JA, Neal CA, and McConnel VS, 2000, The Ukinrek maars eruption, Alaska, 1977: a natural laboratory for the study of phreatomagmatic processes at maars, International Maar Conference, August 20-23, Daun, Germany.

Wohletz, KH, 2002, Physics of Explosive Magma-Water Interactions at High Confining Pressures, AGU Chapman Conference on Explosive Subaqueous Volcanism, January 21-25, 2002, Dunedin, New Zealand.

Wohletz, KH, 2004, Depth controls of water/magma interaction in maar volcanism, Geological Society of America Abstracts with Programs 36(4), 84.

Bartley, JM, Wohletz, KH, Coleman, DS, and Glazner, AF, 2004, Thermal modeling of large composite plutons, EOS Trans Amer Geophys Union 85(47), Fall Meet. Suppl., Abstract V52B-05.

Ogden, DE, Wohletz, KH, and Glatzmaier, GA, 2004, An approach to the turbulent multifield/multiphase dynamics of volcanic conduits and plumes, EOS Trans Amer Geophys Union 85(47), Fall Meet. Suppl., Abstract V33D-1484.

Burt, DM, Knauth, LP, and Wohletz, KH, 2005, Origin of Layered Rocks, Salts, and Spherules at the Opportunity Landing Site on Mars:  No Flowing or Standing Water Evident or Required, Lunar and Planetary Science, v. 36 (2005), Abstract No. 1527

Glazner, AF and Wohletz, KH, 2005, Interaction between magma input and precipitation in the growth of large magma chambers, Geological Society of America Abstracts with Programs 37(7), 130.

Burt, DM, Knarth, LP, and Wohletz, KH, 2005, Impact-derived sedimentary rocks: how common on Mars? Geological Society of America Abstracts with Programs 37(7), 513.

Peterson, AH, Ogden DE, Wohletz KH, Gisler G, and Glatzmaier, GA, 2005, Preliminary benchmarking of Plinian eruption simulations using an adaptive grid eulerian technique, EOS Trans Amer Geophys Union 86(52), Fall Meet. Suppl., Abstract V31D-0647.

Ogden DE, Wohletz KH, Glatzmaier, GA, and Peterson, AH, 2005, Preliminary benchmarking of numerical simulations of the supersonic behavior of Plinian eruptions, EOS Trans Amer Geophys Union 86(52), Fall Meet. Suppl., Abstract V34B-07.

Knauth, LP, Burt, DM, and Wohletz, KH, 2006, Impact surge as the simplest of the proposed hypotheses for the origin of sediments at the Opportunity landing site on Mars. , Lunar and Planetary Science XXXVII (2006), No. 1869.

Burt, DM, Wohletz, KH, and Sheridan, MF, 2006, “Water-laid tuff” of the Utah desert and similar surge deposit misinterpretations: a possible lesson for Mars? , Lunar and Planetary Science XXXVII (2006), No. 2295.

McGuinness, DL, Sinha, AK, Fox, P, Raskin, R, Heiken, G, Barnes, C, Wohletz, K, Venezky, D, Lin, K, 2006, Towards a Reference Volcano Ontology for Semantic Scientific Data Integration, Geoinformatics 2006 Conference, Reston VA, May 2006.

McGuinness, DL, Sinha, AK, Fox, P, Raskin, R, Heiken, G, Barnes, C, Wohletz, K, Venezky, D, Lin, K, 2006, Towards a Reference Volcano Ontology for Semantic Scientific Data Integration, Eos Trans. AGU,
87
(36), Jt. Assem. Suppl., Abstract IN42A-03.

Burt, DM, Wohletz, KH, and Sheridan, MF, 2006, “Water-laid tuff” of the Utah desert and similar surge deposit misinterpretations: a possible lesson for Mars?, Lunar and Planetary Science XXXVII (2006), No. 2295

Burt, DM, Knauth, LP, and Wohletz, KH, 2006, Impact Excavation of Sulfides That Then Weather into Sulfates: An Astrobiology-Friendly Explanation for Acid Sulfate Formation on Mars. Workshop on Sulfates as Recorders of Atmospheric-Fluid-Rock Interactions, No. 7004.

Burt, D.M., Knauth, L.P. and Wohletz, K.H., 2006, Impact dispersal and weathering of sulfides on early Mars: A source of acid sulfates and a possible habitat for microbes: Geol. Soc. Am., Abstracts with Programs, v. 38, no. 7, p. 308, Paper 123-8.

Plesko, CS,  Wohletz, KH, Coker, RH, Asphaug, E, Korycansky, DG, and Gittings, ML, 2006, Toward hydrocode models of an impact-generated Martian greenhouse: model validation and initial results, EOS Trans Amer Geophys Union 87(52), Fall Meet. Suppl., Abstract MR51B-0973.

Glazner, AF, Coleman, DS, Bartley, JM, and Wohletz, KH, 2006, What plutons have to say about big eruptions, EOS Trans Amer Geophys Union 87(52), Fall Meet. Suppl., Abstract V23G-05.

Wohletz, KH, Ogden, DE, and Glatzmaier, GA, 2006, Preliminary Numerical Simulations of Nozzle Formation in the Host Rock of Supersonic Volcanic Jets, EOS Trans Amer Geophys Union 87(52), Fall Meet. Suppl., Abstract V41C-1748.

Ogden, DE,Wohletz, KH, Brodsky, EE, and Glatzmaier, GA, 2006, The Influence of Eruptive Fluid Pressure and Vent Radius on the Eruption Style of High- Pressure Supersonic Volcanoes, EOS Trans Amer Geophys Union 87(52), Fall Meet. Suppl., Abstract V43C-1817.

Peterson, AH, Wohletz, KH, Ogden, DE, Gisler, G, and Glatzmaier, GA, 2006, SAGE Validations of Volcanic Jet Simulations, EOS Trans Amer Geophys Union 87(52), Fall Meet. Suppl., Abstract V43C-1819.

Knauth, LP, Bryan, S, Burt, DM, and Wohletz, KH, 2007, Impact surge on Mars. Lunar and Planetary Science XXXVIII (2007), No. 1757.

Burt, DM, Knauth, LP, and Wohletz, KH, 2007, Sedimentary concretions vs. impact condensates: origin of the hematitic spherules of Meridiani Planum, Mars. Lunar and Planetary Science XXXVIII (2007), No. 1922.

Plesko, CS, Coker, RF, Wohletz, KH, Asphaug, E, and Gittings, ML, 2007, Validation of the RAGE Hydrocode for Impact Modeling. Lunar and Planetary Science XXXVIII (2007), No. 2115.

Peterson, AH, Wohletz, KH, Ogden, DE, Gisler, GR, and Glatzmaier, GA, 2007, Preliminary SAGE simulations of volcanic jets into a stratified atmosphere. EOS Trans Amer Geophys Union 88(52), Fall Meet. Suppl., Abstract V31E-0713.

Ogden , DE , Glatzmaier , GA , Wohletz, KH, and Brodsky, EE, 2007, Computational models of overpressured volcanic plumes: implications for ash dispersion. EOS Trans Amer Geophys Union 88(52), Fall Meet. Suppl., Abstract V21E-04.

Plesko, CS, Asphaug, E, Coker, RF, Wohletz, KH, Korycansky, DG, and Gisler, GR, 2007, Validation of the RAGE hydrocode for impacts into volatile rich targets. EOS Trans Amer Geophys Union 88(52), Fall Meet. Suppl., Abstract P41A-0226.

Royer, D, Burt, DM, and Wohletz, KH, 2008, The Mars spherule size distribution and the impact hypothesis.  Lunar and Planetary Science XXXIX (2008), No. 1013.

Plesko, CS, Coker, RF, Wohletz, KH, Asphaug, E, and Korycansky, DG, 2008, Hydrocode models of large impacts into a Noachian Martian surface: Initial results. Lunar and Planetary Science XXXIX (2008), No. 2116.

Burt, DM, Knauth, LP, and Wohletz, KH, 2008, Sedimentation by impact cratering on Mars. Lunar and Planetary Science XXXIX (2008), No. 2067.

Burt, DM, Knauth, LP, and Wohletz, KH, 2008, Martian gullies and salty sidewalks. Lunar and Planetary Science XXXIX (2008), No. 8035.

Burt, DM, Knauth, LP, and Wohletz, KH, 2008, The late heavy bombardment and Mars, Geol. Soc. Amer. Joint Annual Meeting, Houston, No. 152109.

Wohletz, KH, 2008, Sequential fragmentation theory and particulates produced by explosive volcanism, The 21st  Kongsberg Seminar: Fragmentation processes in the Earth, University of Oslo Physics of Geological Processes, 7-9 May, 2008, Kongsberg, Norway.

Ogden, DE, and Wohletz, KH,2008, Effects of particulates on the expansion of high-pressure volcanic eruptions, EOS Trans Amer Geophys Union 89(53), Fall Meet. Suppl., Abstract V41C-21018.

Plesko, CS, Asphaug, E, Weaver, RP, Wohletz, KH, and Korycansky, DG, 2008, Volatile mobilization by large impacts: constraining the initial conditions of an impact-generated Martian greenhouse. EOS Trans Amer Geophys Union 89(56), Fall Meet. Suppl., Abstract P53B-1454.

Wohletz, KH, and Ogden, DE, 2008, 3D numerical simulations of coupled solid and fluid mechanics in volcanic conduit erosion and crater formation, EOS Trans Amer Geophys Union 89(53), Fall Meet. Suppl., Abstract V33F-08.

Plesko, CS, Asphaug, E, Weaver, RP, Wohletz, KH, and Korycansky, DG, 2009, Initial conditions of an impact-generated greenhouse event from hydrocode models of large impacts on Noachian Mars. 40th Lunar and Planetary Science (2009), No. 2167.

Kieffer, SW, Lu, X, McFarquhar, G, and Wohletz, KH, 2009, Ice/vapor ratio of Enceladus’s plume: implications for sublimation. 40th Lunar and Planetary Science (2009), No. 2261.

Wohletz, K.H., and Hawkins, W.L., 2009, FIMS: field information management system, CTBT OSI Workshop 16, Vienna , Austria , May 3-7, 2009.

Hawkins, W.L., and Wohletz, K.H., 2009, Drilling to obtain samples, CTBT OSI Workshop 16, Vienna , Austria , May 3-7, 2009.

Ogden, D.E., and Wohletz, K.H., 2009, Effects Of complex vent geometry on volcanic jet decompression, Geol. Soc. Am., Abstracts with Programs, v. 41, no. 7, p. 231, Paper 82-11.

Ogden, DE, and Wohletz, KH, 2009, Vent geometry controls on column structure and collapse, EOS Trans Amer Geophys Union  90(52), Fall Meet. Suppl., Abstract V23C-2081.

Glazner, AF, Wohletz, KH, and Bindeman, IN, 2009, Possible Climatic Modulation of Large Caldera-Forming Eruptions (Invited), EOS Trans Amer Geophys Union  90(52), Fall Meet. Suppl., Abstract NH33B-1137.

 


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