Dr. Jeffrey W. Hedenquist
Contact Information
Personal CV
Presentations and Publications
Jeffrey W. Hedenquist
Colorado School of Mines
Dept. Geology and Geological Engineering
1500 Illinois Street
Golden CO 80401-1887 USA
tel: (1)303-273-3978
fax: (1)303-273-3859
Jhedenqu at Mines.edu
Born: 26 September 1954, Duluth, Minnesota, USA
U.S. and New Zealand Citizen, Canadian resident; married
SYNOPSIS
- 24 years of geological research with three national surveys (US, New Zealand, Japan); first non-citizen permanently employed in Japan's 84 national institutes
- Consulting to over 25 clients on exploration for and assessment of ore deposits and geothermal systems; field work and training in 31 countries
- Over 30 plenary, keynote, and other invited lectures at international symposia, and over 45 short courses to industry, university, and government participants in 16 countries
- Over 50 refereed international publications, 13 as invited reviews
- Organizer or co-organizer/co-convenor of 12 international symposia and conferences
- Editorial board member of 8 earth science journals, co-edited 12 special publications
POSITIONS HELD
1.99-present Independent economic geologist, Ottawa, Canada; world-wide consultancy
9.02-present Research assoc. professor, Geology & Geol. Engineering, Colorado School of Mines http://www.mines.edu/academic/geology/people/faculty.html
9.99-5.01 Consulting professor, Geological & Environ. Sciences, Stanford University
4.89-12.98 Senior scientist, Mineral Resources Department, Geological Survey of Japan
7.96-9.97 Visiting fellow, Institute of Geological and Nuclear Sciences, New Zealand
11.82-3.89 Geochemist, Chemistry Division, DSIR, Wairakei, New Zealand
8.82-10.82 Consultant, Freeport Exploration, western U.S.
1.81-12.81 Junior lecturer, Geothermal Institute, University of Auckland, New Zealand
8.79-7.82 Fulbright pre-doctoral research Fellow, DSIR, Wairakei, New Zealand
1.77-7.79 Geologist (half time), Experimental Geochemistry, US Geological Survey
6.77-8.77 Geologist, Anaconda Exploration, Montana
6.75-8.76 Physical science technician, Marine Geology, US Geological Survey
EDUCATION
Ph.D. 7.83 The University of Auckland, Geology Department and Geothermal Institute (Geochemistry of an active epithermal system, Waiotapu, New Zealand)
M.A. 11.78 The Johns Hopkins University, Department of Earth and Planetary Sciences, Baltimore (Jardine Archean gold deposit), Ph.D. qualifying exams successfully passed
B.A. 12.75 Macalester College, Department of Geology, St. Paul, Minnesota
RECOGNITIONS and AWARDS
The Geological Society (London): William Smith Medal (2004) for applied geology
Society of Economic Geologists: Silver Medal (2000) for mid-career contributions
Society of Economic Geologists: Thayer Lindsley Distinguished Lecturer (1997-98)
Fulbright-Hayes Pre-doctoral Research Fellow, New Zealand (1979-1982)
ADVISOR TO GOVERNMENTS & ORGANIZATIONS
Georange, Sweden (2001-present): Scientific advisor to Swedish government, EU, and industry research consortium
Metal Mining Agency of Japan (2002): Forum organizer on Mining in Asia, Vancouver
Metal Mining Agency of Japan (2001): Strategic overview of Middle East mineral potential
World Bank Mining Department (2000-2001): Mineral potential of Central and East Asia
Metal Mining Agency of Japan (1989-1998): Technical advisor, Japan and Chile projects
Japan International Cooperation Agency (1994-1995): Training for international participants
New Zealand Ministry of Foreign Affairs (1987-1988): Three training missions, Indonesia and the Philippines
United Nations Development Program (1986): Epithermal training mission to the Philippines
CONSULTANCY TO INDUSTRY
Confidential consultancy reports to mineral industry, World Bank Mining Department and other clients (1999-present): over 50 reports (most on multiple assignments)
∑ Clients have included: Aruntani, BHP Minerals, BHP-Billiton, Black Hawk, Buenaventura, Comaplex, COMARSA, Eastern Mediterranean, Gold Fields, Gabriel, Hochschild, IAMGOLD, IMC, Ivanhoe, Kinross, MDH, Metal Mining Agency of Japan, Minera Yanacocha, Navan, Newmont, North, Odyssey, Placer Dome, QGX, Rubicon, TeckCominco, Tuprag, World Bank Mining Department
∑ Field-based work in countries including: Argentina, Brasil, Bulgaria, Canada, Chile, Cyprus, Ecuador, Italy, Mexico, Mongolia, Nicaragua, Peru, Romania, Sweden, Turkey, USA, as well as compilation studies on East and Central Asia to the Middle East, and training in China, Germany, Iceland, Japan, Switzerland, United Kingdom; prior assignments included Australia, Fiji, Indonesia, New Zealand, Taiwan, Soviet Union
DSIR Chemistry Div. confidential mineral exploration consultancy reports (1985-1989): 12
DSIR Chemistry Div. open-file geothermal consultancy reports (1984-1989): 14
PROFESSIONAL AFFILIATIONS AND SERVICE
Society of Economic Geologists (Fellow, 1986); member of Geochemical Society, Japan Society of Resource Geology, Geological Society of Washington D.C.
Society of Economic Geologists: Councilor (1997-2000), Executive Vice President for Regional Affairs (2000-2002); Committee service: Membership (1992-1995); International Lecturer (1993-1996); Chair, Nominating (1999-2000); Chair, Traveling Lecturer (2002-2002); Chair, Organizing Committee, 100th Anniversary publications (2002-2005)
U.S. Geological Survey (2000): External assessor of applicants for Mineral Resources Chief
U.S., NZ, Australia and Swiss Natl. Sci. Foundations (1988-present): External reviewer
Swedish government ore deposits research program (NUTEK, 1993-1997): External assessor
Initiated Science Agreements between Geological Survey of Japan and institutes in New Zealand (1990), Russia (1994) and Hungary (1996)
Over 50 lectures to university earth science departments (1984-present) in 14 countries, and over 40 short courses on epithermal-porphyry ore deposits, and geothermal systems (1984-present) to government surveys, plus university students and staff
National Institute of Geological Sciences, University of the Philippines (1993): Visiting professor; graduate course on geochemistry of hydrothermal systems and ore deposits
Geothermal Institute, University of Auckland (1983-1988): Visiting lecturer, geochemistry
SYMPOSIA ORGANIZATION
Program committee, Publications, SEG Biennial meeting, Keystone, Colorado (2006)
Science committee, IAVCEI General Assembly, PucÛn, Chile (2004)
Co-chair, IAVCEI General Assembly, Chile: Epithermal and geothermal session (2004)
Co-chair, Goldschmidt meeting, Kurashiki, Japan: Giggenbach symposium (2003)
Co-chair, SGA Biennial meeting, Athens, Greece: Epithermal session (2003)
Organizer, Metal Mining Agency of Japan Forum on Mineral Potential of Asia, Vancouver, affiliated with Cordilleran Roundup (2002)
Organizer and convenor, World Bank workshop on Mineral Resource Potential of Central and East Asia, Ottawa (2001)
Co-convenor, Gordon Research Conference, New Hampshire: Formation, modification and preservation of ore deposits (2001)
Co-organizer, SEG field trip to Carpathian volcanic belt, Hungary and Slovakia (1999)
Co-chair, GSA Annual meeting, Denver: Porphyry to epithermal transition (1996)
Co-organizer and co-convenor, NSF and Japan Society for Promotion of Science symposium and field trip, Kyushu, Japan: Magmatic contributions to hydrothermal systems (1991)
Co-convenor, Geological Survey of Japan international symposium, Tsukuba, Japan: Deep crustal fluids, (1990)
Co-chair, American Geophysical Union Western Pacific meeting, Kanazawa, Japan: Volcanic fluids (1990)
Co-chair, IAVCEI General Assembly, Santa Fe: Geothermal systems and ore deposits (1989)
Co-organizer, Geochemical Group Conference: New Plymouth, New Zealand (1986)
EDITORIAL RESPONSIBILITIES
Chief editor: Economic Geology 100th Anniversary publications (2002-2006)
100th Anniversary Volume
Special Papers in Economic Geology
Business of Exploration, Special Publication
Associate editor:
Geochemical Journal (4.1989-3.2001)
Journal of Geochemical Exploration (1.1990-12.1995)
Editorial board:
Economic Geology (1.2000-present)
Resource Geology (4.1998-present)
Mineralium Deposita (1.1997-3.2000)
Geology (1.1993-12.1998, two terms)
Editor or co-editor of special volumes
Earth, Planets and Space - Satsuma Iwojima volcano (2002)
Geothermics - Geothermal Systems of Japan (1999); Deep Geothermal Resources in Japan (1998); Geothermal Systems of the Philippines (1993)
Journal of Geochemical Exploration - Mineral Deposits of Indonesia (1994); Epithermal Gold Deposits of the Circum Pacific (1990)
Geological Survey of Japan Report - Magmatic Contributions to Hydrothermal Systems (1992); High-temperature Acidic Fluids and Associated Mineralization (1991)
Geochemical Journal - Geothermal Systems in Japan (1991)
Gebr¸der Borntraeger - Monograph Series: Mineral Deposits: Guide to Active Epithermal (Geothermal) Systems and Precious Metal Deposits of New Zealand (1986)
Invited lectures at universities and institutes (1984 ñ present)
Australian Geological Survey Organization, Bandung Inst. Technology, BRGM OrlÈans, Carleton Univ., Chevron Research Inst., Colorado School of Mines (2), CSIRO Perth, Geological Survey of Canada (2), Geological Survey of Japan, Harvard Univ. (2), Hokkaido Univ., Japan Oil, Gas and Metals Corp., Kagoshima Univ., Leicester Univ., McGill Univ., Macalester College, Metal Mining Agency of Japan (2), Mitsubishi Materials Research, Oberlin College, Oregon State (2), Osaka City Univ., Philippine National Oil Co., Shimane Univ., Stanford Univ. (3), Sydney Univ., Univ. Alberta, Univ. Arizona, Univ. Auckland, Univ. Canterbury, Univ. Geneva, Univ. Georgia, Univ. Kyushu, Univ. La Plata, Univ. Maryland, Univ. Oregon, Univ. Otago, Univ. Ottawa (2), Univ. Philippines, Univ. Tasmania, Univ. Toronto (2), Univ. Utah Research Inst., Univ. Western Australia, Univ. Western Ontario, U.S. Geological Survey (5), Victoria Univ. of Wellington, Virginia Polytechnic Inst., Washington State Univ.
INVITED PRESENTATIONS: J.W. Hedenquist
Summary
Invited conference presentations: 30 (27 first author)
Short courses: 47
Invited university and institute lectures: over 50
Invited conference lectures and keynote presentations:
Hedenquist J.W. 10/1984, Studies on active gold mineralization in the Waiotapu geothermal system, New Zealand, Proceeding Gold '84, Australian Institute of Mining and Metallurgy, Kalgoorlie. Keynote.
Hedenquist J.W. 10/1984, Regional tectonic, structural and geological controls on the location of active hydrothermal systems in New Zealand, and The geochemistry of gold mineralizing fluids in the active hydrothermal systems of New Zealand, CSIRO Gold Symposium, October, Perth. Keynotes.
Hedenquist J.W. 7/1987, Mineralization associated with volcanic-related hydrothermal systems in the circum-Pacific, 4th Circum Pacific Energy and Mineral Resources Conference, Singapore, American Association of Petroleum Geologists.
Henley R.W. and Hedenquist J.W. 7/1987, Recent trends in geothermal science and development, New Zealand, 4th Circum Pacific Energy and Mineral Resources Conference, Singapore, American Association of Petroleum Geologists.
Hedenquist J.W. 11/1987, Epithermal mineralization in the Circum Pacific Basin, Symposium on Extensional Tectonics, Canberra, Bureau of Mineral Resources. Keynote.
Hedenquist J.W. 1/1989, Hydrothermal ore deposits: The relationship of epithermal gold mineralization to geothermal and volcanic systems, Kagoshima International Conference on Volcanism, August, 1988, Kagoshima, Japan. Keynote.
Hedenquist J.W. 6/1989, Interaction of volcanogenic fluids with host rocks, and their relationship to mineralization, IAVCEI General Assembly, Santa Fe, 23 June-1 July.
Aoki M. and Hedenquist J.W. 8/1990, Chemistry and metal contents of discharges from Esan and Kirishima volcanoes, Japan: Effects and significance of meteoric interaction, American Geophysical Union, Western Pacific Meeting, Kanazawa, 20-25 August.
Hedenquist J.W. and Brown K.L., 2/1991, Sulfide mineral scaling in geothermal systems: A review, Annual Meeting, Japan Geothermal Energy Association, Tokyo, 21 February.
Hedenquist J.W., Reyes A.G., Simmons S.F. and Taguchi S. 4/1991, The thermal and geochemical structure of active and extinct epithermal systems deduced from fluid inclusion studies, European Current Research on Fluid Inclusion Symposium, Florence, 9-12 April. Keynote.
Hedenquist J.W., Aoki M., Giggenbach W.F., Kazahaya K., Matsuhisa Y. and Shinohara H. 8/1992, Geochemistry of the magmatic hydrothermal systems of Satsuma Iwojima volcano, southern Japan, International Geological Congress, Kyoto, 23 August-3 September.
Hedenquist J.W. 9/92, Characteristics of epithermal systems in the circum Pacific, Sweden Ministry of Industry, NUTEK, Meeting to assess Swedish mineral industry research, 14-16 September, Stockholm. Keynote.
Hedenquist J.W. 10/1992, Magmatic components in hydrothermal systems, Penrose Conference on Fluid-Volcano Interactions, 4-9 October, Kahneeta, Oregon. Keynote.
Hedenquist J.W. 12/1992, Mineralisation of volcanogenic hydrothermal systems in the circum-Pacific, and their recognition, Epithermal Gold in Asia and the Pacific, Tsukuba, 15-18 May, 1989, United Nations ESCAP, Mineral concentrations and hydrocarbon accumulations in the ESCAP region.
Hedenquist J.W. and Shinohara H. 3/1994, Characteristics of the magmatic-hydrothermal system of Satsuma Iwojima, Kyushu, Japan, Deep-seated and Magma-ambient Geothermal Systems, New Energy and Industrial Technology Development Organization, Tsukuba, 8-10 March.
Hedenquist J.W. 10/1994, Flux of ore-forming metals from arc volcanoes, and the formation of high-sulfidation ore deposits. 7th Congreso Geologico Chileno, ConcepciÛn, 17-21 October, Universidad de ConcepciÛn. Plenary opening address.
Hedenquist J.W. 4/1996, Hydrothermal processes and metallogenesis. Abst., Applied Geoscience, The Geological Society, Warwick, England, 15-18 April. Keynote.
Hedenquist, J.W. 6/1996, Hydrothermal gold deposits, volcanoes and hot springs. Gold 96, Hanau, Germany, 10-12 June, 1996. Keynote.
Hedenquist, J.W. 10/1996, Sources of crustal fluids. in Fluids and Faulting, Trans-Tasman Field Workshop, University of Otago, Dunedin, New Zealand, 20-25 October, 1996.
Hedenquist, J.W., 10/1996, An overview of the porphyry to epithermal transition. Geological Society of America Annual meeting, Denver, 28-31 October. Symposium introduction.
Hedenquist, J.W. and Shinohara, H. 1/1997, Constraints on magma degassing beneath the FSE porphyry Cu-Au deposit, Philippines. IAVCEI General Assembly, Puerto Vallarta, Mexico, 19-24 January 1997.
Hedenquist, J.W., 1/1997, Hydrothermal processes and metallogenesis: present understanding and future research directions. New Developments in Research for Ore Deposit Exploration, Third National Conference of the Specialist Group in Economic Geology, Canberra, Australia, 30-31 January, 1997, Geological Society of Australia. Keynote.
Hedenquist, J.W., 8/1997, The magmatic continuum from porphyry to epithermal ore environments: Evidence from active and extinct systems. Gordon Research Conference on Inorganic Geochemistry of Metal Ore-forming Systems, Henniker, New Hampshire, 10-14 August.
Hedenquist, J.W., Reyes, A.G., Taguchi, S. and Simmons, S.F., 4/1998, Styles of hydrothermal systems in volcanic arcs: causes of diversity of alteration and mineralization. Geosciences 98, The Geological Society, Keele University, England, 14-18 April. Keynote.
Hedenquist, J.W., and Arribas, A., Jr., 6/1998, Styles of epithermal gold mineralization: The tops and bottoms of high-sulfidation deposits. Cordillera de los Andes: Geological and Mining Potential, International Symposium, Mendoza, Argentina, 3-5 June, 1998. Keynote.
Sillitoe, R.H., Robert, F., and Hedenquist, J.W., 10/1999, Evolution of our understanding of gold deposits during the 20th century and the impact on exploration and discovery. Society of Economic Geologists, JANUS 1 Symposium, , Colorado, 24 October.
Hedenquist, J.W., and Sillitoe, R.H., 11/2000, The research backup to 21st century epithermal Au exploration. Society of Economic Geologists, JANUS 2 Symposium, Reno, Nevada, 12 November.
Hedenquist, J., Daneshfar, B., Yakubchuk, A., Chorlton, L., Sinclair, D., and Kirkham, R., 11/2000, Metallogeny of Asia: Existing resources and new targets. in Issues and Challenges in Changing Asian Mining, Asian Mining Congress, Kuala Lumpur, Malaysia, 16-18 November.
Hedenquist, J.W., Naito, K., and White, N.C., 6/2001, Opportunities and challenges for the mineral industry in Asia in the 21st century. Society of Resource Geology 50th Annual meeting, Tokyo, 13-15 June. Keynote.
Hedenquist, J.W., and White, N.C., 3/2002, Geologic information encourages exploration investment, World Mines Ministries Forum Workshop, 13-14 March, Toronto, Canada.
Hedenquist, J.W., and 11 others, 9/2004, Are there cutting-edge advances in research that are applicable to mineral exploration? SGA-SEG biennial meeting, 28 September - 1 October, Perth, Australia. Keynote, 1 October.
Professional training and short courses
Hedenquist J.W. and Reid, F.W. 7/1984, Epithermal gold, Short course presentation, Earth Resources Foundation, University of Sydney, 8-12 July, Sydney.
Hedenquist J.W. and Reid, F.W. 5/1985, Epithermal gold, Short course presentation, Earth Resources Foundation, University of Sydney, 5-9 May, Sydney.
Hedenquist J.W. 10/1985, The geology and geochemistry of epithermal gold mineralization, James Cook University Short Course on Gold Mineralization, 10-11 October, Townsville.
Hedenquist J.W. and Reid F.W. 1/1986, Epithermal mineralization, United Nations Development Program, Strenghtening the Philippines in Gold Exploration Training Course, 3-26 January, Manila.
Henley R.W. and Hedenquist J.W. 7/1986, Epithermal mineralization, N.Z. Mineral Association Field Short Course, 1-7 July, Taupo Volcanic Zone, New Zealand.
Hedenquist J.W., 8/1986, Epithermal mineralization, Boliden Training Workshop, 4-5 August, SkellefteÂ, Sweden.
Hedenquist J.W. 4/1987, Fluid inclusion systematics, N.Z. Foreign Affairs Training Workshop, Philippine National Oil Company, 3-5 April, Manila.
Hedenquist J.W. and Houghton B.F. 11/1987, Epithermal gold mineralization and its volcanic environments, Earth Resources Foundation, University of Sydney, 422 p.
Hedenquist J.W., Browne P.R.L. and Mahon W.A.J. 6/1987, Geothermal systems and energy development, N.Z. Foreign Affairs Training Workshop, Pertamina, 20-30 June, Jakarta, Indonesia.
Hedenquist J.W. and Browne P.R.L. 2/1988, Epithermal mineralization, N.Z. Mineral Association Field Short Course, 11-15 February, Taupo Volcanic Zone, New Zealand.
Hedenquist J.W. and Houghton B.F. 11/1987, Epithermal gold mineralization and its volcanic environments, Earth Resources Foundation, University of Sydney, field course in the Taupo Volcanic Zone, 10-15 November, New Zealand.
Hedenquist J.W. and Houghton, B.F. 2/1988, Epithermal mineralization and volcanic host rocks, Indonesian Mineral Association Training Course, 24-28 February, Sumatra.
Hedenquist J.W. and Houghton, B.F. 3/1989, Epithermal mineralization and volcanic host rocks, Indonesian Mineral Association Training Course, 10-14 March, Kalimantan.
Hedenquist J.W. 4/1993, Magmatic components in hydrothermal systems: Are they necessary to form an ore deposit? University of British Columbia, Mineral Deposit Research Unit Shortcourse, 26-28 April.
Hedenquist J.W. 8/1994, Hydrothermal systems and porphyry to epithermal mineralization. Japan International Cooperation Agency, Training Course, 25-26 August, Akita Prefecture.
Hedenquist J.W. 5/1995, The ascent of magmatic fluids: Eruption versus mineralization. Fluids and Ore Deposits, Mineralogical Association of Canada Shortcourse, Victoria, Canada, May.
Hedenquist J.W. 9/1995, Origin of and Exploration for Epithermal Gold Deposits, Shortcourse Symposium, 5-7 September, Eˆtvˆs Lor·nd University, Budapest, Hungary.
Hedenquist J.W. 10/1995, The environment of hydrothermal mineralization. Japan International Cooperation Agency, Training Course, 11-12 October, Akita Prefecture.
Hedenquist J.W. 4/1996, Hydrothermal systems in volcanic arcs: Origin of and exploration for epithermal gold deposits. Shortcourse Symposium, 22-23 April, University of GenËva, Switzerland, 139 p.
Hedenquist J.W. 4/1996, Hydrothermal systems in volcanic arcs: Origin of and exploration for epithermal gold deposits. Shortcourse Symposium, 29-30 April, BRGM OrlÈans, France, 139 p.
Hedenquist J.W. 1/1997, Magmatic Fluids, Geothermal Systems and Ore Deposits. Shortcourse, IAVCEI General Assembly, Puerto Vallarta, Mexico, 16-18 January 1997.
Hedenquist J.W. 2/1997, Epithermal gold deposits: Styles, characteristics and exploration. Shortcourse, 4 February, University of Western Australia, Perth, Australia, 140 p.
Hedenquist J.W. 12/1997, Hydrothermal systems in volcanic arcs: Origin of and exploration for epithermal gold deposits. Shortcourse, 2-3 December, University of ConcepciÛn, Chile, 141 p.
Hedenquist J.W. 5/1998, Epithermal gold deposits: Styles, characteristics and exploration. Bandung Institute of Technology, Bandung, Indonesia, SEG Thayer Lindsley Shortcourse, 17 May.
Hedenquist J.W. 5/1998, Epithermal gold deposits: Styles, characteristics and exploration. Department of Geology, University of Peking, Beijing, China, SEG Thayer Lindsley Shortcourse, 21-23 May.
Hedenquist J.W. 6/1998, Geothermal and volcanic-hydrothermal systems: Processes related to low- and high-sulfidation epithermal gold mineralization (abst.). Geothermal short course in Icleland, NorFa shortcourse 98.10.038-O, Reykjavik, Iceland, 21-29 June, 1998, p. 21-23.
Hedenquist, J.W. 7/1998, Epithermal gold deposits: Styles, characteristics and exploration. National Institute of Geological Sciences, University of the Philippines, Manila, Philippines, SEG Thayer Lindsley Shortcourse, 13-14 July.
Hedenquist J.W., and Richards, J. 10/1998, The influence of geochemical techniques on the development of genetic models for porphyry copper deposits, Techniques in Hydrothermal Ore Deposits Geology, Society of Economic Geology Shortcourse, Toronto, Canada, 24-25 October.
Hedenquist, J.W., and Arribas, A., Jr., 9/1999, Epithermal gold deposits: I. Hydrothermal processes in intrusion-related systems. II. Characteristics, examples and origin of epithermal gold deposits. Shortcourse presented in conjunction with the Society of Economic Geology Fieldtrip to the Carpathian Mountains, Budapest, Hungary, 5 September, 1999.
Hedenquist, J.W., and Arribas, A., Jr., 12/1999, Epithermal gold deposits: I. Hydrothermal processes in intrusion-related systems. II. Characteristics, examples and origin of epithermal gold deposits. Shortcourse presented at the University of Freiberg, Germany, 13-17 December, 1999.
Hedenquist, J.W., and Arribas, A., Jr., 3/2000, Epithermal gold deposits: Mineral Deposits Study Unit, University of British Columbia, with P. Lewis and R. Tosdal.
Hedenquist, J.W., 9/2000, Styles of epithermal precious-metal deposits and their relation to porphyry Cu-Au deposits, APQ Annual meeting, Montre·l, Canada.
Arribas, A., Gonzalez-Urien, E., and Hedenquist, J.W., 11/2000, Exploration for epithermal gold deposits, Gold in 2000, Society of Economic Geologists Shortcourse, Tahoe, Nevada, 10-11 November.
Hedenquist, J.W., 5/2001, Relationship between porphyry and high-sulfidation epithermal deposits: lectures with a field trip to ore deposits in the Cajamarca region, Per˙, following ProExplo Congreso.
Hedenquist, J.W., 3/2002, ExploraciÛn de depÛsitos epitermales: Sus estilos, caracterÌsticas y relaciÛn con los depÛsitos tipo PÛrfido, AsociaciÛn de Ingenieros de Minas, Metalurgistas y GeÛlogos de MÈxico, Distrito Durango, 20-21 March, Durango, Mexico.
Hedenquist, J.W., 1/2003, High-sulfidation epithermal gold deposits: Characteristics, related deposits, and exploration, Gold Shortcourse, 26 January, BCYCM Roundup, Vancouver.
Hedenquist, J.W., 4/2003, Epithermal gold deposits: Styles, characteristics, and exploration. Shortcourse, University Babes-Bolyai, 23 April, Cluj-Napoca, Romania.
Hedenquist, J.W., 4/2003, Epithermal high-sulfidation gold deposits: Characteristics, related ore types, and exploration, Gold Shortcourse, SEG Student Chapter, Laurentian University, 26-27 April, Sudbury.
Hedenquist, J.W., 4/2004, Epithermal gold deposits: Characteristics, related ore types, and exploration, SEG Student Chapter, Colorado School of Mines, 2-3 April, Golden.
Hedenquist, J.W., 2/2005, Epithermal gold deposits: Styles, characteristics, and exploration, University of Ottawa, 4-5 February, Ottawa.
Hedenquist, J.W., 8/2005, Epithermal gold deposits: Styles, characteristics, and exploration, James Cook University, 27-28 August, Townsville.
Hedenquist, J.W., 9/2005, Epithermal gold deposits: Styles, characteristics, and exploration, XVI Congreso GeolÛgico Argentino, 18-19 September, Mendoza.
In-house training for industry
Hedenquist J.W. 5/1985, Epithermal gold, Short course presentation, BHP Minerals Training Course, New South Wales, 12-14 May.
Hedenquist J.W. 9/1985, Epithermal mineralization, Freeport Exploration Training Course, 15-16 August, Santiago, Chile.
Hedenquist, J.W., 1&11/1999, Epithermal gold deposits, Placer Dome Exploration Training Course, Hermosillo, Mexico and Reno, Nevada, U.S
Hedenquist, J.W., 8/1999, Epithermal gold deposits, Newmont Exploration Training Course, Lima, Peru.
Hedenquist, J.W., 12/1999, Epithermal gold deposits, North Exploration Training Course, Tambillos, Peru.
Hedenquist, J.W., 1/2000, Epithermal gold deposits, Newmont Exploration Training Course, Nevada, U.S.
Hedenquist, J.W., 7/2000, Estilos de yacimientos epitermales y su relaciÛn con pÛrfidos de CuñAu: Styles of epithermal precious-metal deposits and their relation to porphyry Cu-Au deposits, Minera Yanacocha Training Course (including Newmont Per˙, Buenaventura, CEDIMIN and Mineral Yanacocha staff), Cajamarca, Per˙.
Hedenquist, J.W., 5/2001, Epithermal gold deposits, Navan Minerals Training Course, Krumovgrad, Bulgaria.
Hedenquist, J.W., 5/2003, Epithermal gold deposits and relationship to porphyry systems, TeckCominco Training Course, Huarez, Peru.
Hedenquist, J.W., 1/2004, Epithermal gold deposits: Styles, characteristics, relationship to porphyry systems, and exploration, Gold Fields Training Course, Santiago, Chile.
Hedenquist, J.W., 5/2004, Epithermal gold deposits: Styles, characteristics, and exploration, Odyssey Minerals, Black Sea and Biga, Turkey.
Hedenquist, J.W., 5/2004, Epithermal gold deposits: Styles, characteristics, relationship to porphyry systems, and exploration, Tuprag Minerals, Ankara, Turkey.
Hedenquist, J.W., 5/2004, Epithermal gold deposits: Styles, characteristics, and exploration, TeckCominco Exploration, Biga, Turkey.
PUBLICATIONS: J.W. Hedenquist
Summary
Refereed international publications: 51 (29 first author), 13 as invited reviews
Proceedings papers and other publications: 31 (25 first author)
Published abstracts: 47 (29 first author)
Editor or co-editor, special publications: 12
Invited reviews, refereed
Hedenquist J.W. 2/1986, Geothermal systems of the Taupo Volcanic Zone: Their characteristics and relation to volcanism and mineralization, in Late Cenozoic Volcanism in New Zealand, Royal Society of New Zealand Bulletin 23, p. 134-168.
Hedenquist J.W. 7/1987, Mineralization associated with volcanic-related hydrothermal systems in the circum-Pacific, Transactions, 4th Circum Pacific Energy and Mineral Resources Conference, Singapore, American Association of Petroleum Geologists, p. 513-524.
Henley R.W. and Hedenquist J.W. 7/1987, Recent trends in geothermal science and development, New Zealand, Transactions, 4th Circum Pacific Energy and Mineral Resources Conference, Singapore, American Association of Petroleum Geologists, p. 475-482.
Taguchi S. and Hedenquist J.W., 7/1987, Geothermal systems in New Zealand, Kagoshima Research Center for the South Pacific Occasional Papers, No. 11, p. 41-70 (in Japanese).
Hedenquist J.W. 12/1987, Volcanic related hydrothermal systems in the Circum Pacific Basin and their potential for mineralization, Mining Geology, v. 37, p. 347-364 (in Japanese).
Matsuhisa Y. and Hedenquist J.W. 1/1992, New theories on the formation of hydrothermal gold deposits, Scientific American (Nikkei Science), v. 22, no. 1, p. 14-18 (in Japanese).
Hedenquist J.W., Reyes A.G., Simmons, S.F. and Taguchi S. 7/1992, The thermal and geochemical structure of geothermal and epithermal systems: A framework for interpreting fluid inclusion data, European Journal of Mineralogy, v. 4, p. 989-1015.
Hedenquist J.W. and Lowenstern J.B. 8/1994, Review Article: The role of magmas in the formation of hydrothermal ore deposits. Nature, v. 370, p. 519-527.
Hedenquist J.W. 5/1995, The ascent of magmatic fluids: Eruption versus mineralization. in Thompson, J.F.H., editor, Magmas, Fluids and Ore Deposits, Mineralogical Association of Canada, Shortcourse, v. 23, p. 263-289.
White N.C. and Hedenquist J.W. 10/1995, Epithermal gold deposits: Styles, characteristics, and exploration. Society of Economic Geologists, Newsletter no. 23, p. 1, 9-13.
Hedenquist J.W., and Richards, J. 10/1998, The influence of geochemical techniques on the development of genetic models for porphyry copper deposits, in Richards, J.P., and Larson, P.B. (eds.), Techniques in Hydrothermal Ore Deposits Geology: Reviews in Economic Geology, v. 10, ch. 10, p. 235-256.
Hedenquist, J.W., Arribas M., A., and Gonzalez-Urien, E., 11/2000, Exploration for epithermal gold deposits, in Hagemann, S.G. and Brown, P.E, eds, Gold in 2000, Reviews in Economic Geology, v. 13, p. 245-277.
White, N.C., Hedenquist, J.W., and Kirkham, R., 3/2001, Asia: The waking giant, in Mining in Asia, Mining Journal Supplement, March, 12 p.
Refereed international publications
Hedenquist J.W. 8/1984, Comment on boiling beneath the ocean floor, Nature, v. 310, p. 636.
Hedenquist J.W. and Henley R.W. 8/1985, Effect of CO2 on the freezing point depression measurements of fluid inclusions: Evidence from active systems and implication for epithermal mineralization, Economic Geology, v. 80, p. 1379-1406.
Hedenquist J.W. and Henley R.W. 9/1985, Hydrothermal eruptions in the Waiotapu geothermal system, New Zealand: Their origin, associated breccia deposits and relation to precious metal mineralization, Economic Geology, v. 80, p. 1640-1668.
Hedenquist J.W. 2/1986, Waiotapu geothermal field, in Guide to the active epithermal (geothermal) systems and precious metal deposits of New Zealand, Monograph Series on Mineral Deposits, v. 26, Gebr¸der Borntraeger, p. 65-79.
Henley R.W. and Hedenquist J.W. 2/1986, Introduction to the geochemistry of active and fossil geothermal systems, in Guide to the active epithermal (geothermal) systems and precious metal deposits of New Zealand, Monograph Series on Mineral Deposits, v. 26, Gebr¸der Borntraeger, p. 1-22.
Hedenquist J.W. 8/1986, Precious metal vein systems in the National District, Humboldt County, Nevada: A discussion, Economic Geology, v. 81, p. 1020-1023.
Ikeya M., Devine S.D., Whitehead N.E. and Hedenquist J.W. 3/1987, Detection of methane in geothermal quartz by Electron Spin Resonance, Chemical Geology, v. 56, p. 185-192.
Brett R., Evans H.T., Jr., Gibson, E.K., Hedenquist J.W., Wandless M-V., and Sommer M.A. 10/1987Mineralogical studies of sulfide samples and volatile concentrations of basalt glasses from the southern Juan de Fuca Ridge, Journal of Geophysical Research, p. 11373-11379. R.
Urashima Y., Izawa E. and Hedenquist J.W. 10/1987, Nansatsu-type gold deposits in the Makurazaki district, in Gold Deposits and Geothermal Fields in Kyushu, Society of Mining Geologists of Japan, Guidebook 2, p. 13-22.
Hedenquist J.W. and Browne P.R.L. 9/1989, The evolution of the Waiotopu geothermal system, New Zealand, based on the chemical and isotopic composition of its fluids, mineral and rocks, Geochimica et Cosmochimica Acta, v. 53, p. 2235-2257.
Sarano F., Murphy R.C., Houghton B.F. and Hedenquist J.W. 8/1989, Preliminary observations of submarine geothermal activity in the vicinity of White Island volcano, Taupo Volcanic Zone, New Zealand, Royal Society of New Zealand Bulletin, v. 19, p. 449-459.
Hedenquist J.W. 3/1990, The thermal and geochemical structure of the Broadlands-Ohaaki geothermal system, New Zealand, Geothermics, v. 19, p. 151-185.
White N.C. and Hedenquist J.W. 2/1990, Epithermal environments and styles of mineralization: Variations and their causes, and guidelines for exploration, in Hedenquist J.W., White N.C. and Siddeley G., editors, Epithermal Gold Mineralization of the Circum Pacific: Geology, Geochemistry, Origin and Exploration, Journal of Geochemical Exploration, v. 36, p. 445-474.
Hedenquist J.W., Goff F., Phillips F.M., Elmore D. and Stewart M.K. 11/1990, Groundwater dilution and residence times, and constraints on chloride source, in the Mokai geothermal system, New Zealand, from chemical, stable isotope, tritium, and 36Cl data, Journal of Geophysical Research, v. 95, p. 19,365-19,375.
Lonker S.W., FitzGerald J.D., Hedenquist J.W. and Walshe, J.L. 11/1990, Mineral-fluid interactions in the Broadlands-Ohaaki geothermal system, New Zealand, American Journal of Science, v. 290, p. 995-1068.
Hedenquist J.W. 10/1991, Boiling and dilution in the shallow portion of the Waiotapu geothermal system, New Zealand, Geochimica et Cosmochima Acta, v. 55, p. 2753-2765.
Hedenquist J.W. and Aoki M. 10/1991, Meteoric interaction with magmatic discharges in Japan, and its significance for mineralization, Geology, v. 19, p. 1041-1044.
Hedenquist J.W. 10/1991, The geochemistry of newly developed geothermal systems in Japan, Geochemical Journal, v. 25, p. 199-202.
Matsuhisa Y., Hedenquist J.W. and Aoki M. 11/1991, Isotopic evidence for the origin of Nansatsu fluids,in Matsuhisa Y., Aoki M. and Hedenquist J.W., editors, High-temperature Acid Fluids and Associated Alteration and Mineralization, Geological Survey of Japan Report 277, p. 53-57.
Hedenquist J.W. and Gulson B.L. 7/1992, Intrusive and basement rock sources of lead in hydrothermal systems of the Taupo Volcanic Zone, New Zealand, Geochimica et Cosmochimica Acta, v. 56, p. 2821-2829.
Graham I.J., Gulson B.L., Hedenquist J.W. and Mizon K. 7/1992, Petrogenesis of Late Cenozoic volcanic rocks from the Taupo Volcanic Zone , New Zealand, in the light of new Pb isotope data, Geochimica et Cosmochimica Acta, v. 56, p. 2797-2820.
Hedenquist J.W. 8/1992, Magmatic contributions to hydrothermal systems: Recognition of signatures in the active and extinct environment, in Hedenquist J.W., editor, Magmatic Contributions to Hydrothermal Systems, Geological Survey of Japan Report 279, p. 68-79.
Muffler L.J.P., Hedenquist J.W., Kesler S.E. and Izawa E. 8/1992, Japan-U.S. seminar on magmatic contributions to hydrothermal systems, in Hedenquist J.W., editor, Magmatic Contributions to Hydrothermal Systems, Geological Survey of Japan Report 279, p. 1-6.
Hedenquist J.W., Simmons S.F., Giggenbach W.F. and Eldridge C.S. 8/1993, White Island volcanic hydrothermal system as an active analogue of the environment of high sulfidation Cu and Au ore deposition, Geology, v. 21, p. 731-734.
Shinohara H., Giggenbach W.F., Kazahaya K. and Hedenquist J.W. 12/1993, Geochemistry of volcanic gases and hot springs of Satsuma-Iwojima, Japan: Following Matsuo, Geochemical Journal, v. 27, p. 271-285.
Hedenquist J.W., Matsuhisa Y., Izawa E., White N.C., Giggenbach W.F., Aoki M. 1/1994, Geology, geochemistry and origin of high sulfidation gold mineralization in the Nansatsu district, Japan, Economic Geology, v. 89, p. 1-30.
Hedenquist J.W., Aoki M. and Shinohara H. 7/1994, Flux of volatiles and ore-forming metals from the magmatic-hydrothermal system of Satsuma Iwojima volcano, Geology, v. 22, p. 585-588.
Arribas A., Hedenquist J.W., Itaya T., Okada T., ConcepciÛn R.A. and Garcia J.S., Jr. 4/1995, Contemporaneous formation of adjacent porphyry and epithermal Cu-Au deposits over 300,000 years in northern Luzon, Philippines. Geology, v. 23, p. 337-340.
Taran Y.A., Hedenquist J.W., Korzhinsky M.A., Tkachenko, S.I. and Shmulovich K.I. 5/1995, Geochemistry of magmatic gases from Kudryavy volcano, Iturup, Kuril Islands. Geochimica et Cosmochimica Acta, v. 59, 1749-1761.
Ebbesen T.W., Hiura H., Hedenquist J.W., de Ronde C.E.J., Anderson A., Often M. and Melezhik V.A. 6/1995, Origins of fullerenes in rocks. Science, v. 268, p. 1634-1635.
Hedenquist J.W., Izawa E., Arribas A. and White N.C. 8/1996, Epithermal gold deposits: Styles, characteristics and exploration. Society of Resource Geology, Special Publication 1, 2-sheet poster, 16 p. booklet (with Spanish, French, Japanese and Chinese translations, 70 p).
Taran, Y.A. and Hedenquist J.W. 6/1997, Reply to comment on Geochemistry of magmatic gases from Kudryavy volcano, Iturup, Kuril Islands. Geochimica et Cosmochimica Acta, v. 61, p. 3267.
Shinohara H. and Hedenquist J.W. 12/1997, Constraints on magma degassing beneath the Far Southeast porphyry Cu-Au deposit, Philippines. Journal of Petrology, v. 38, p. 1741-1752.
Hedenquist J.W., Arribas A., Jr. and Reynolds, T.J. 6/1998, Evolution of intrusion-centered hydrothermal systems: Far Southeast-Lepanto porphyry and epithermal Cu-Au deposits, Philippines. Economic Geology, v. 93, p. 373-404.
Hedenquist, J.W., and Arribas, A., Jr., 9/1999, Epithermal gold deposits: I. Hydrothermal processes in intrusion-related systems. II. Characteristics, examples and origin of epithermal gold deposits. Society of Economic Geologists, Fieldtrip Guidebook, Mineralization of the Western Carpathians, v. 31, p. 14-63.
Hedenquist, J.W., Claveria, R.N.R. and Villafuerte, G.P. 1/2001, Types of sulfide-rich epithermal deposits, and their affiliation to porphyry systems: LepantoñVictoriañFar Southeast deposits, Philippines, as examples, ProEXPLO Congreso, Lima, Per˙, April, 29 p. (released on CD).
Watanabe, Y., and Hedenquist, J.W., 12/2001, Mineralogical and stable isotope zonation at the surface over the El Salvador porphyry Cu deposit, Chile. Economic Geology, v. 96: 1775-1797.
Meinert, L.D., Hedenquist, J.W., Sato, H., and Matsuhisa, Y., 01/2003, Formation of anhydrous and hydrous skarn in Cu-Au ore deposits by magmatic fluids. Economic Geology, v. 98, p. 147-156.
Einaudi, M.T., Hedenquist, J.W., and Inan, E., 2003, Sulfidation state of hydrothermal fluids: The porphyry-epithermal transition and beyond, in Simmons, S.F, and Graham, I.J., eds., Volcanic, geothermal and ore-forming fluids: Rulers and witnesses of processes within the Earth: Society of Economic Geologists and Geochemical Society, Special Publication 10, Chapter 15, p. 285-313.
Sillitoe, R.H., and Hedenquist, J.W., 2003, Linkages between volcanotectonic settings, ore-fluid compositions, and epithermal precious-metal deposits, in Simmons, S.F, and Graham, I.J., eds., Volcanic, geothermal and ore-forming fluids: Rulers and witnesses of processes within the Earth: Society of Economic Geologists and Geochemical Society, Special Publication 10, Chapter 16, p. 315-343.
Hedenquist, J.W., and Daneshfar, B., 2003, Mineral Potential of Central and East Asia, in Basis for Mining Investment in Transition Economy Countries, World Bank Mining Department, Washington, D.C., Mining Journal Publishing.
Shamanian, G.H., Hedenquist, J.W., Hattori, K.H., and Hassanzadeh, J., 2004, Gandy and Abolhassani epithermal deposits, Alborz magmatic arc, Semnan Province, northern Iran: Economic Geology, v. 99, p. 691-712.
Nairn, I.A., Hedenquist, J.W., Villamor, P. Shane, Berryman, K., and Cole, J.W., 2004, Driving of contemporaneous rhyolite and hydrothermal eruptions by an arrested basalt dike system: the ~AD1300 eruptions at Tarawera and Waiotapu, Taupo Volcanic Zone, New Zealand: Bulletin of Volcanology.
Edited compilations:
Henley, R.W., Hedenquist J.W. and Roberts P., editors, 2/1986, Guide to the active epithermal (geothermal) systems and precious metal deposits of New Zealand, Monograph Series on Mineral Deposits, v. 26, Gebruder Borntraeger, 222 p.
Hedenquist J.W., White N.C. and Siddeley G., editors, 2/1990, Gold Mineralization of the Circum Pacific: Geology, Geochemistry, Origin and Exploration, Journal of Geochemical Exploration, v. 35, p. 1-447 and v. 36, p. 1-474.
Hedenquist J.W., editor, 10/1991, The Geochemistry of Newly Developed Geothermal Systems in Japan, Geochemical Journal, v. 25, p. 199-355.
Matsuhisa Y., Aoki M. and Hedenquist J.W., editors, 11/1991, High-temperature Acid Fluids and Associated Alteration and Mineralization, Geological Survey of Japan Report 277, p. 1-110.
Hedenquist J.W., editor, 8/1992, Magmatic Contributions to Hydrothermal Systems, Geological Survey of Japan Report 279, 214 p.
Sussman D., Ruaya J.R., Reyes A.G and Hedenquist J.W., editors, 12/1993, Geothermal systems of the Philippines, Geothermics, Special Issue, v. 22 (5,6), p. 349-587.
van Leeuwen Th.M., Hedenquist J.W., L.P. James and Dow J.A.S., editors, 4/1994, Mineral deposits of Indonesia: Discoveries of the past 25 years, Journal of Geochemical Exploration, Special Issue, v. 50, p. 1-500.
Sasada M., Doi, Muffler L.P.J. and Hedenquist J.W., editors, 10/1998, Deep drilling in the Kakkonda geothermal system, Japan. Geothermics, v. 27, 5/6, p. 505-732.
Moln·r F., Lexa J. and Hedenquist J.W., editors, 9/1999, Epithermal mineralization of the Western Carpathians, Society of Economic Geology, Guidebook 31, 267 p.
Sasada M., Taguchi, S. and Hedenquist J.W., editors, 4/2000, Geothermal systems of Japan. Geothermics, v. 29, 2, 311 p.
Shinohara H., Iguchi M., Hedenquist J.W., and Koyaguchi, T., editors, 5/2002, Satsuma Iwojima volcano. Earth, Planets and Space, v. 54, no. 3, p. 173-347.
Hedenquist, J.W., editor, 3/2002, Mineral potential of Asia: An MMAJ Forum, Vancouver, January 2002, Metal Mining Agency of Japan, Tokyo, 42 p. (in English and Japanese), with CD. http://www.mmaj.go.jp/mric_web/MMAJ_FORUM/MMAJForum.html
Published abstracts, proceedings papers, newsletters and other short notes
James O.B., Hedenquist J.W., Blanchard D.P., Budahn, J.R. and Compston W., 5/1978, Consortium breccia 73255: Petrology, major- and trace-element chemistry, and Rb-Sr systematics of aphanitic lithologies, Proceedings, 9th Lunar and Planetary Science Conference, Houston, p. 789-820.
Wan T-F. and Hedenquist J.W. 11/1981, A reassessment of the structural control of the Broadlands geothermal field, New Zealand, Proceedings, 3rd New Zealand Geothermal Workshop, Auckland, p. 195-202.
Hedenquist J.W. 11/1982, Fluid flow in the Waiotapu geothermal system, New Zealand, Proceeding, 4th New Zealand Geothermal Workshop, Auckland, p. 61-67.
Hedenquist J.W. 8/1983, Mineral-gas equilibria in the Waiotapu geothermal system, New Zealand, Proceedings, 4th International Symposium on Water-Rock Interaction, Misasa, p. 175-179.
Hedenquist J.W. and Henley R.W. 10/1983, Chemical controls on gold mineralization in an active geothermal system, Waiotopu, New Zealand, Abst., 96th Annual Meeting, Geological Society of America, October, Cincinnati, v. 15.
Hedenquist J.W. 11/1983, Chemical evolution and mineralization of the Waiotapu geothermal system, Abst., Geological Society of N.Z. Annual Meeting, November, Wellington.
Hedenquist J.W. 11/1983, Characteristics of Broadlands-Ohaaki water chemistry and changes subsequent to initial production, Proceedings, 5th New Zealand Geothermal Workshop, Auckland, p. 151-156.
Hedenquist J.W. 10/1984, Studies on active gold mineralization in the Waiotapu geotheraml system, New Zealand, Proceeding Gold '84, Australian Institute of Mining and Metallurgy, Kalgoorlie, p. 1-9.
Hedenquist J.W. and Stewart M.K. 8/1985, Natural CO2-rich condensates at Broadlands, New Zealand: Their distribution, chemistry and corrosive nature, Transactions, Geothermal Resources Council Annual Meeting, Hawaii, v. 9(2), p. 245-250.
Hedenquist J.W. and Reid F.W. 10/1985, Epithermal gold, Earth Resources Foundation, University of Sydney, 316 p.
Brett R., Hedenquist J.W. and Evans H.T., Jr. 11/1985, Sulfide chimneys from south Juan de Fuca Ridge: Mineralogy and fluid inclusions, Abst., American Geophysical Union, November, San Francisco, Eos, v. 66.
Hedenquist J.W. and Taguchi S. 1/1986, Gold deposition in geothermal systems of the Taupor Volcanic Zone of New Zealand, Abst., Society of Mining Geologists of Japan Annual Meeting, Tokyo, Mining Geology, v. 36, p. 45.
Hedenquist J.W. 2/1986, Hydrothermal eruptions in the Waiotapu geothermal system: Their cause, breccia deposits and hydrological effect, Abst. International Volcanological Congress, IAVCEI, Proceedings of Symposium 5: Volcanism, hydrothermal systems and related mineralization, February, Hamilton, New Zealand.
Mann A.W., Fardy J.J. and Hedenquist J.W. 2/1986, Major and trace element concentrations in some New Zealand geothermal waters, Proceedings, Symposium 5: Volcanism, hydrothermal systems and related mineralisation, International Volcanology Congress, Hamilton, New Zealand, 61-66.
Hedenquist J.W. 8/1986, An interpretive framework for gases extracted from fluid inclusions, Proceedings, 5th International Symposium on Water-Rock Interaction, Reykjavik, p. 251-254.
Hedenquist J.W. 1/1987, Evidence for boiling in the epithermal environment from fluid inclusion gases, Abst., Society of Mining Geologists of Japan Annual Meeting, January, Tokyo, Mining Geology, v. 37, p. 72.
Hedenquist J.W., Brown K.L., Glover R.B., Mroczek, E.K. and Timperley M.H. 10/1987, Geochemical problems related to the development of geothermal resources in New Zealand, Abst., Geothermal Research Society of Japan Annual Meeting, October, Morioka.
Hedenquist J.W. 11/1987, Epithermal mineralization in the Circum Pacific Basin, Symposium on Extensional Tectonics, Canberra, Bureau of Mineral Resources Record 87/51, p. 211-217.
Matsuhisa Y., Hedenquist J.W., Izawa E., Marumo K., Sasaki A. and Aoki M. 1/1988, Ore fluids for gold mineralization of acid-leached rocks in the Nansatsu district, Abst., Society of Mining Geologists of Japan Annual Meeting, January, Tokyo, Mining Geology, v. 38, p. 78 (in Japanese).
Hedenquist J.W., Matsuhisa Y., Izawa E., Marumo K., Aoki M. and Sasaki A. 5/1988, Epithermal gold mineralization of acid leached rocks in the Nansatsu district of southern Kyushu, Japan, Proceedings, Bicentennial Gold 88, Geological Society of Australia, p. 183-190.
Hedenquist J.W. 11/1988, Precommissioning sampling to establish a baseline for geochemical monitoring at Broadlands-Ohaaki geothermal system, New Zealand, Proceedings, 10th New Zealand Geothermal Workshop, p. 239-243.
Hedenquist J.W. 1/1989, Hydrothermal ore deposits: The relationship of epithermal gold mineralization to geothermal and volcanic systems, Proceedings, Kagoshima International Conference on Volcanism, August, 1988, Kagoshima, Japan, p. 755-758.
Giggenbach W.F., Hedenquist J.W., Houghton B.F., Otway P.M. and Allis R.G. 2/1989, Research drilling into the volcanic hydrothermal system on White Island, New Zealand, Eos, v. 70, p. 98-100, 108-109.
Giggenbach W.F., Hedenquist J.W., Houghton B.F., Otway P.M. and Allis R.G. 3/1989, Research drilling on New Zealand's White Island will investigate volcanic hydrothermal system, Earth in Space, v. 1, p. 3-5.
Hedenquist J.W. 6/1989, Interaction of volcanogenic fluids with host rocks, and their relationship to mineralization, Abst., IAVCEI General Assembly, Santa Fe, 23 June-1 July, New Mexico Bureau of Mines and Mineral Resources Bulletin 131, p. 126.
Hedenquist J.W. 1/1990, The geochemical structure and reservoir fluid chemistry of the Broadlands-Ohaaki geothermal system, New Zealand, Abst., Annual Meeting, Tokyo, 15-16 October, 1989, Journal of the Geothermal Research Society of Japan, v. 12, p. 192-193.
Hedenquist J.W. and Garcia J.S., Jr. 4/1990, Sulfur isotope systematics in the Lepanto mining district, northern Luzon, Philippines, Abst., Society of Mining Geologists of Japan Annual Meeting, Tokyo, 1-3 February, Mining Geology, v. 40, p. 67.
Aoki M. and Hedenquist J.W. 8/1990, Chemistry and metal contents of discharges from Esan and Kirishima volcanoes, Japan: Effects and significance of meteoric interaction, Abst., American Geophysical Union, Western Pacific Meeting, Kanazawa, 20-25 August, EOS, v. 71, p. 962.
Giggenbach W.F., Sato K. and Hedenquist J.W. 2/1991, Magmatic hydrothermal system of White Island, New Zealand, Chishitsu News, no. 438, p. 1-4 (in Japanese).
Hedenquist J.W., Reyes A.G., Simmons S.F. and Taguchi S. 4/1991, The thermal and geochemical structure of active and extinct epithermal systems deduced from fluid inclusion studies, Abst., European Current Research on Fluid Inclusion Symposium, Florence, 9-12 April, Plinius, no. 5, p. 98-99.
Hedenquist J.W. 2/1992, The occurrence of acid fluids in geothermal systems and relation to magmatic activity, Program and Abst., 13th Annual PNOC-EDC Geothermal Conference, Manila, 19-21 February.