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Jeff L Doebrich (Former Employee)

Science and Products

Filter Total Items: 27

U.S. Geological Survey Mineral Resources Program—Mineral resource science supporting informed decisionmaking U.S. Geological Survey Mineral Resources Program—Mineral resource science supporting informed decisionmaking

The USGS Mineral Resources Program (MRP) delivers unbiased science and information to increase understanding of mineral resource potential, production, and consumption, and how mineral resources interact with the environment. The MRP is the Federal Government’s sole source for this mineral resource science and information. Program goals are to (1) increase understanding of mineral...
Authors
Aleeza Wilkins, Jeff Doebrich
By
Mineral Resources Program

Book review: Natural resources in Afghanistan: Geographic and geologic perspectives on centuries of conflict Book review: Natural resources in Afghanistan: Geographic and geologic perspectives on centuries of conflict

This book is the outcome of four decades of work in Afghanistan by the author, John (Jack) Shroder. His travels and research throughout Afghanistan and his understanding of its place in regional and world history provide the foundation for this comprehensive 572-page reference. The book describes the interrelated nature of Afghanistan’s physical and political landscape over time and the...
Authors
Jeff Doebrich
By
Mineral Resources Program

Lead-soft and easy to cast Lead-soft and easy to cast

No abstract available.
Authors
S.J. Kropschot, Jeff Doebrich
By
Geology, Energy, and Minerals Mission Area, Mineral Resources Program

Zinc-The key to preventing corrosion Zinc-The key to preventing corrosion

Centuries before it was identified as an element, zinc was used to make brass (an alloy of zinc and copper) and for medicinal purposes. Metallic zinc and zinc oxide were produced in India sometime between the 11th and 14th centuries and in China in the 17th century, although the discovery of pure metallic zinc is credited to the German chemist Andreas Marggraf, who isolated the element...
Authors
S.J. Kropschot, Jeff Doebrich
By
Geology, Energy, and Minerals Mission Area, Mineral Resources Program

Chromium-Makes stainless steel stainless Chromium-Makes stainless steel stainless

Chromium, a steely-gray, lustrous, hard metal that takes a high polish and has a high melting point, is a silvery white, hard, and bright metal plating on steel and other material. Commonly known as chrome, it is one of the most important and indispensable industrial metals because of its hardness and resistance to corrosion. But it is used for more than the production of stainless steel...
Authors
S.J. Kropschot, Jeff Doebrich
By
Geology, Energy, and Minerals Mission Area, Mineral Resources Program

Copper: a metal for the ages Copper: a metal for the ages

Copper was one of the first metals ever extracted and used by humans, and it has made vital contributions to sustaining and improving society since the dawn of civilization. Copper was first used in coins and ornaments starting about 8000 B.C., and at about 5500 B.C., copper tools helped civilization emerge from the Stone Age. The discovery that copper alloyed with tin produces bronze...
Authors
Jeff Doebrich
By
Geology, Energy, and Minerals Mission Area, Mineral Resources Program

Geology and Nonfuel Mineral Deposits of Africa and the Middle East Geology and Nonfuel Mineral Deposits of Africa and the Middle East

A nation's endowment of nonfuel mineral resources, relative to the world's endowment, is a fundamental consideration in decisions related to a nation's economic and environmental well being and security. Knowledge of the worldwide abundance, distribution, and general geologic setting of mineral commodities provides a framework within which a nation can make decisions about economic...
Authors
Cliff Taylor, Klaus Schulz, Jeff Doebrich, Greta Orris, Paul Denning, Michael Kirschbaum

Gold deposits and occurrences of the Greater Caucasus, Georgia Republic: Their genesis and prospecting criteria Gold deposits and occurrences of the Greater Caucasus, Georgia Republic: Their genesis and prospecting criteria

The south-central part of the Greater Caucasus region, Georgia Republic, represents an extremely prospective region for significant orogenic gold deposits. Gold-bearing quartz veins are concentrated in two extensive WNW-trending belts, the Mestia-Racha and Svaneti districts, within the northern margin of the Southern Slope Zone of the Great Caucasus orogen. This metalliferous region is...
Authors
S.A. Kekelia, M.A. Kekelia, S.I. Kuloshvili, N.G. Sadradze, N.E. Gagnidze, V.Z. Yaroshevich, G.G. Asatiani, J. L. Doebrich, R.J. Goldfarb, E.E. Marsh

Geology and metallogeny of the Ar Rayn terrane, eastern Arabian shield: Evolution of a Neoproterozoic continental-margin arc during assembly of Gondwana within the East African orogen Geology and metallogeny of the Ar Rayn terrane, eastern Arabian shield: Evolution of a Neoproterozoic continental-margin arc during assembly of Gondwana within the East African orogen

The Neoproterozoic Ar Rayn terrane is exposed along the eastern margin of the Arabian shield. The terrane is bounded on the west by the Ad Dawadimi terrane across the Al Amar fault zone (AAF), and is nonconformably overlain on the east by Phanerozoic sedimentary rocks. The terrane is composed of a magmatic arc complex and syn- to post-orogenic intrusions. The layered rocks of the arc...
Authors
J. L. Doebrich, A. Al-Jehani, A.A. Siddiqui, T. Hayes, J. Wooden, P.R. Johnson

Geology and nonfuel mineral deposits of Greenland, Europe, Russia, and northern Central Asia Geology and nonfuel mineral deposits of Greenland, Europe, Russia, and northern Central Asia

No abstract available.
Authors
Warren Nokleberg, Walter Bawiec, Jeff Doebrich, Bruce Lipin, Robert Miller, Greta Orris, Michael Zientek
By
Geology, Energy & Minerals Science Center

Geology and nonfuel mineral deposits of Asia and the Pacific Geology and nonfuel mineral deposits of Asia and the Pacific

No abstract available.
Authors
Stephen G. Peters, Warren Nokleberg, Jeff Doebrich, Walter Bawiec, Greta Orris, David M. Sutphin, David Wilburn

Ad Duwayhi, Saudi Arabia: Geology and geochronology of a neoproterozoic intrusion-related gold system in the Arabian shield Ad Duwayhi, Saudi Arabia: Geology and geochronology of a neoproterozoic intrusion-related gold system in the Arabian shield

The Ad Duwayhi gold deposit, located in the east-central part of the Arabian shield, is the newest gold discovery in Saudi Arabia. Exploration to date has identified a gold resource of greater than 1 million ounces (oz) with significant potential for expansion. Gold mineralization was closely associated, in time and space, with emplacement of a late- to postorogenic, intracrustal...
Authors
Jeff Doebrich, S.G. Zahony, J.D. Leavitt, J.S. Portacio, A.A. Siddiqui, Joseph L. Wooden, Robert Fleck, Holly J. Stein
By
International Programs

Non-USGS Publications**

Doebrich, J.L., and Theodore, T.G., 1996, Geologic history of the Battle Mountain Mining District, and regional controls on the distribution of mineral systems, in Coyner, A.R., and Fahey, P.L., eds., Geology and ore deposits of the American Cordillera: Geological Society of Nevada Symposium Proceedings, Reno/Sparks, Nevada, April 1995, p. 453-483.
Doebrich, J.L., 1995, Geology and mineral deposits of the Antler Peak 7.5-minute quadrangle, Battle Mountain, Lander County, Nevada: Nevada Bureau of Mines and Geology Bulletin, 44 p., 2 plates.
Doebrich, J.L., 1984, Geology and hydrothermal alteration at the Mahd adh Dhahab precious-metal deposit, Kingdom of Saudi Arabia: MSc thesis, Colorado School of Mines, 148 p.

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros
Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros
Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros
Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros

Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros

Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros

Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros. Photo taken near Samba-Madi, Grande Comore, Comoros.

By
International Programs
Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros

Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros

Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros

Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros. Photo taken near Samba-Madi, Grande Comore, Comoros.

By
International Programs
Downloading data from a seismic monitoring station established by the USGS in Comoros
Downloading data from a seismic monitoring station established by the USGS in Comoros
Downloading data from a seismic monitoring station established by the USGS in Comoros
Downloading data from a seismic monitoring station established by the USGS in Comoros

Downloading data from a seismic monitoring station established by the USGS in Comoros

Downloading data from a seismic monitoring station established by the USGS in Comoros

Technician from the Karthala Volcano Observatory downloading data from a seismic monitoring station, established by the USGS in Comoros.

By
International Programs
Downloading data from a seismic monitoring station established by the USGS in Comoros

Downloading data from a seismic monitoring station established by the USGS in Comoros

Downloading data from a seismic monitoring station established by the USGS in Comoros

Technician from the Karthala Volcano Observatory downloading data from a seismic monitoring station, established by the USGS in Comoros.

By
International Programs
Dr. Ayele Atalay, Addis Ababa University, at entrance of USGS global seismic monitoring station, Mt. Furi, Ethiopia
USGS global seismic monitoring station, Mt. Furi, Ethiopia
USGS global seismic monitoring station, Mt. Furi, Ethiopia
Dr. Ayele Atalay, Addis Ababa University, at entrance of USGS global seismic monitoring station, Mt. Furi, Ethiopia

USGS global seismic monitoring station, Mt. Furi, Ethiopia

USGS global seismic monitoring station, Mt. Furi, Ethiopia

Dr. Ayele Atalay, Addis Ababa University, at entrance of USGS global seismic monitoring station, Mt. Furi, Ethiopia.

By
International Programs
Dr. Ayele Atalay, Addis Ababa University, at entrance of USGS global seismic monitoring station, Mt. Furi, Ethiopia

USGS global seismic monitoring station, Mt. Furi, Ethiopia

USGS global seismic monitoring station, Mt. Furi, Ethiopia

Dr. Ayele Atalay, Addis Ababa University, at entrance of USGS global seismic monitoring station, Mt. Furi, Ethiopia.

By
International Programs
Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia
Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia
Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia
Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia

Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia

Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia

Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia.

By
International Programs
Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia

Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia

Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia

Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia.

By
International Programs
USGS Discusses Cooperative Geoscience with Angolan Agencies

USGS Discusses Cooperative Geoscience with Angolan Agencies

USGS visited Angola during January 15–20, 2023, to discuss scientific cooperation related to minerals and groundwater.

Read Article

Science and Products

Filter Total Items: 27

U.S. Geological Survey Mineral Resources Program—Mineral resource science supporting informed decisionmaking U.S. Geological Survey Mineral Resources Program—Mineral resource science supporting informed decisionmaking

The USGS Mineral Resources Program (MRP) delivers unbiased science and information to increase understanding of mineral resource potential, production, and consumption, and how mineral resources interact with the environment. The MRP is the Federal Government’s sole source for this mineral resource science and information. Program goals are to (1) increase understanding of mineral...
Authors
Aleeza Wilkins, Jeff Doebrich
By
Mineral Resources Program

Book review: Natural resources in Afghanistan: Geographic and geologic perspectives on centuries of conflict Book review: Natural resources in Afghanistan: Geographic and geologic perspectives on centuries of conflict

This book is the outcome of four decades of work in Afghanistan by the author, John (Jack) Shroder. His travels and research throughout Afghanistan and his understanding of its place in regional and world history provide the foundation for this comprehensive 572-page reference. The book describes the interrelated nature of Afghanistan’s physical and political landscape over time and the...
Authors
Jeff Doebrich
By
Mineral Resources Program

Lead-soft and easy to cast Lead-soft and easy to cast

No abstract available.
Authors
S.J. Kropschot, Jeff Doebrich
By
Geology, Energy, and Minerals Mission Area, Mineral Resources Program

Zinc-The key to preventing corrosion Zinc-The key to preventing corrosion

Centuries before it was identified as an element, zinc was used to make brass (an alloy of zinc and copper) and for medicinal purposes. Metallic zinc and zinc oxide were produced in India sometime between the 11th and 14th centuries and in China in the 17th century, although the discovery of pure metallic zinc is credited to the German chemist Andreas Marggraf, who isolated the element...
Authors
S.J. Kropschot, Jeff Doebrich
By
Geology, Energy, and Minerals Mission Area, Mineral Resources Program

Chromium-Makes stainless steel stainless Chromium-Makes stainless steel stainless

Chromium, a steely-gray, lustrous, hard metal that takes a high polish and has a high melting point, is a silvery white, hard, and bright metal plating on steel and other material. Commonly known as chrome, it is one of the most important and indispensable industrial metals because of its hardness and resistance to corrosion. But it is used for more than the production of stainless steel...
Authors
S.J. Kropschot, Jeff Doebrich
By
Geology, Energy, and Minerals Mission Area, Mineral Resources Program

Copper: a metal for the ages Copper: a metal for the ages

Copper was one of the first metals ever extracted and used by humans, and it has made vital contributions to sustaining and improving society since the dawn of civilization. Copper was first used in coins and ornaments starting about 8000 B.C., and at about 5500 B.C., copper tools helped civilization emerge from the Stone Age. The discovery that copper alloyed with tin produces bronze...
Authors
Jeff Doebrich
By
Geology, Energy, and Minerals Mission Area, Mineral Resources Program

Geology and Nonfuel Mineral Deposits of Africa and the Middle East Geology and Nonfuel Mineral Deposits of Africa and the Middle East

A nation's endowment of nonfuel mineral resources, relative to the world's endowment, is a fundamental consideration in decisions related to a nation's economic and environmental well being and security. Knowledge of the worldwide abundance, distribution, and general geologic setting of mineral commodities provides a framework within which a nation can make decisions about economic...
Authors
Cliff Taylor, Klaus Schulz, Jeff Doebrich, Greta Orris, Paul Denning, Michael Kirschbaum

Gold deposits and occurrences of the Greater Caucasus, Georgia Republic: Their genesis and prospecting criteria Gold deposits and occurrences of the Greater Caucasus, Georgia Republic: Their genesis and prospecting criteria

The south-central part of the Greater Caucasus region, Georgia Republic, represents an extremely prospective region for significant orogenic gold deposits. Gold-bearing quartz veins are concentrated in two extensive WNW-trending belts, the Mestia-Racha and Svaneti districts, within the northern margin of the Southern Slope Zone of the Great Caucasus orogen. This metalliferous region is...
Authors
S.A. Kekelia, M.A. Kekelia, S.I. Kuloshvili, N.G. Sadradze, N.E. Gagnidze, V.Z. Yaroshevich, G.G. Asatiani, J. L. Doebrich, R.J. Goldfarb, E.E. Marsh

Geology and metallogeny of the Ar Rayn terrane, eastern Arabian shield: Evolution of a Neoproterozoic continental-margin arc during assembly of Gondwana within the East African orogen Geology and metallogeny of the Ar Rayn terrane, eastern Arabian shield: Evolution of a Neoproterozoic continental-margin arc during assembly of Gondwana within the East African orogen

The Neoproterozoic Ar Rayn terrane is exposed along the eastern margin of the Arabian shield. The terrane is bounded on the west by the Ad Dawadimi terrane across the Al Amar fault zone (AAF), and is nonconformably overlain on the east by Phanerozoic sedimentary rocks. The terrane is composed of a magmatic arc complex and syn- to post-orogenic intrusions. The layered rocks of the arc...
Authors
J. L. Doebrich, A. Al-Jehani, A.A. Siddiqui, T. Hayes, J. Wooden, P.R. Johnson

Geology and nonfuel mineral deposits of Greenland, Europe, Russia, and northern Central Asia Geology and nonfuel mineral deposits of Greenland, Europe, Russia, and northern Central Asia

No abstract available.
Authors
Warren Nokleberg, Walter Bawiec, Jeff Doebrich, Bruce Lipin, Robert Miller, Greta Orris, Michael Zientek
By
Geology, Energy & Minerals Science Center

Geology and nonfuel mineral deposits of Asia and the Pacific Geology and nonfuel mineral deposits of Asia and the Pacific

No abstract available.
Authors
Stephen G. Peters, Warren Nokleberg, Jeff Doebrich, Walter Bawiec, Greta Orris, David M. Sutphin, David Wilburn

Ad Duwayhi, Saudi Arabia: Geology and geochronology of a neoproterozoic intrusion-related gold system in the Arabian shield Ad Duwayhi, Saudi Arabia: Geology and geochronology of a neoproterozoic intrusion-related gold system in the Arabian shield

The Ad Duwayhi gold deposit, located in the east-central part of the Arabian shield, is the newest gold discovery in Saudi Arabia. Exploration to date has identified a gold resource of greater than 1 million ounces (oz) with significant potential for expansion. Gold mineralization was closely associated, in time and space, with emplacement of a late- to postorogenic, intracrustal...
Authors
Jeff Doebrich, S.G. Zahony, J.D. Leavitt, J.S. Portacio, A.A. Siddiqui, Joseph L. Wooden, Robert Fleck, Holly J. Stein
By
International Programs

Non-USGS Publications**

Doebrich, J.L., and Theodore, T.G., 1996, Geologic history of the Battle Mountain Mining District, and regional controls on the distribution of mineral systems, in Coyner, A.R., and Fahey, P.L., eds., Geology and ore deposits of the American Cordillera: Geological Society of Nevada Symposium Proceedings, Reno/Sparks, Nevada, April 1995, p. 453-483.
Doebrich, J.L., 1995, Geology and mineral deposits of the Antler Peak 7.5-minute quadrangle, Battle Mountain, Lander County, Nevada: Nevada Bureau of Mines and Geology Bulletin, 44 p., 2 plates.
Doebrich, J.L., 1984, Geology and hydrothermal alteration at the Mahd adh Dhahab precious-metal deposit, Kingdom of Saudi Arabia: MSc thesis, Colorado School of Mines, 148 p.

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros
Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros
Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros
Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros

Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros

Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros

Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros. Photo taken near Samba-Madi, Grande Comore, Comoros.

By
International Programs
Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros

Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros

Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros

Seismic monitoring station established by the USGS for the Karthala Volcano Observatory in Comoros. Photo taken near Samba-Madi, Grande Comore, Comoros.

By
International Programs
Downloading data from a seismic monitoring station established by the USGS in Comoros
Downloading data from a seismic monitoring station established by the USGS in Comoros
Downloading data from a seismic monitoring station established by the USGS in Comoros
Downloading data from a seismic monitoring station established by the USGS in Comoros

Downloading data from a seismic monitoring station established by the USGS in Comoros

Downloading data from a seismic monitoring station established by the USGS in Comoros

Technician from the Karthala Volcano Observatory downloading data from a seismic monitoring station, established by the USGS in Comoros.

By
International Programs
Downloading data from a seismic monitoring station established by the USGS in Comoros

Downloading data from a seismic monitoring station established by the USGS in Comoros

Downloading data from a seismic monitoring station established by the USGS in Comoros

Technician from the Karthala Volcano Observatory downloading data from a seismic monitoring station, established by the USGS in Comoros.

By
International Programs
Dr. Ayele Atalay, Addis Ababa University, at entrance of USGS global seismic monitoring station, Mt. Furi, Ethiopia
USGS global seismic monitoring station, Mt. Furi, Ethiopia
USGS global seismic monitoring station, Mt. Furi, Ethiopia
Dr. Ayele Atalay, Addis Ababa University, at entrance of USGS global seismic monitoring station, Mt. Furi, Ethiopia

USGS global seismic monitoring station, Mt. Furi, Ethiopia

USGS global seismic monitoring station, Mt. Furi, Ethiopia

Dr. Ayele Atalay, Addis Ababa University, at entrance of USGS global seismic monitoring station, Mt. Furi, Ethiopia.

By
International Programs
Dr. Ayele Atalay, Addis Ababa University, at entrance of USGS global seismic monitoring station, Mt. Furi, Ethiopia

USGS global seismic monitoring station, Mt. Furi, Ethiopia

USGS global seismic monitoring station, Mt. Furi, Ethiopia

Dr. Ayele Atalay, Addis Ababa University, at entrance of USGS global seismic monitoring station, Mt. Furi, Ethiopia.

By
International Programs
Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia
Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia
Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia
Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia

Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia

Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia

Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia.

By
International Programs
Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia

Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia

Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia

Seismic monitoring equipment inside tunnel of USGS global seismic monitoring station, Mt. Furi, Ethiopia.

By
International Programs
USGS Discusses Cooperative Geoscience with Angolan Agencies

USGS Discusses Cooperative Geoscience with Angolan Agencies

USGS visited Angola during January 15–20, 2023, to discuss scientific cooperation related to minerals and groundwater.

Read Article
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