Mission Areas

Energy and Minerals

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Filter Total Items: 621
Year Published: 2016

Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974

The Defense Minerals Administration (DMA), Defense Minerals Exploration Administration (DMEA), and Office of Minerals Exploration (OME) mineral exploration programs were active over the period 1950–1974. Under these programs, the Federal Government contributed financial assistance in the exploration for certain strategic and critical minerals. The...

Frank, David G.
Frank, D.G., 2016, Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974: U.S. Geological Survey Data Series 1004, http://dx.doi.org/10.3133/ds1004.

Year Published: 2016

Surface slip during large Owens Valley earthquakes

The 1872 Owens Valley earthquake is the third largest known historical earthquake in California. Relatively sparse field data and a complex rupture trace, however, inhibited attempts to fully resolve the slip distribution and reconcile the total moment release. We present a new, comprehensive record of surface slip based on lidar and field...

Haddon, E.K.; Amos, C.B.; Zielke, O.; Jayko, Angela S.; Burgmann, R.

Year Published: 2016

Geologic map of the Vancouver and Orchards quadrangles and parts of the Portland and Mount Tabor quadrangles, Clark County, Washington, and Multnomah County, Oregon

IntroductionThis is a 1:24,000-scale geologic map of the Vancouver and Orchards quadrangles and parts of the Portland and Mount Tabor quadrangles in the States of Washington and Oregon. The map area is within the Portland Basin and includes most of the city of Vancouver, Washington; parts of Clark County, Washington; and a small part of...

O'Connor, Jim E.; Cannon, Charles M.; Mangano, Joseph F.; Evarts, Russell C.
O’Connor, J.E., Cannon, C.M., Mangano, J.F., and Evarts, R.C., 2016, Geologic map of the Vancouver and Orchards quadrangles and parts of the Portland and Mount Tabor quadrangles, Clark County, Washington, and Multnomah County, Oregon: U.S. Geological Survey Scientific Investigations Map 3357, scale 1:24,000, http://dx.doi.org/10.3133/sim3357.

Year Published: 2016

Geologic map of the Morena Reservoir 7.5-minute quadrangle, San Diego County, California

IntroductionMapping in the Morena Reservoir 7.5-minute quadrangle began in 1980, when the Hauser Wilderness Area, which straddles the Morena Reservoir and Barrett Lake quadrangles, was mapped for the U.S. Forest Service. Mapping was completed in 1993–1994. The Morena Reservoir quadrangle contains part of a regional-scale Late Jurassic(?) to Early...

Todd, Victoria R.
Todd, V.R., 2016, Geologic map of the Morena Reservoir 7.5-minute quadrangle, San Diego County, California: U.S. Geological Survey Open-File Report 95–50, 12 p., scale 1:24,000, http://dx.doi.org/10.3133/ofr9550.

Year Published: 2016

Natural thorium resources and recovery: Options and impacts

This paper reviews the front end of the thorium fuel cycle, including the extent and variety of thorium deposits, the potential sources of thorium production, and the physical and chemical technologies required to isolate and purify thorium. Thorium is frequently found within rare earth element–bearing minerals that exist in diverse types of...

Ault, Timothy; Van Gosen, Bradley S.; Krahn, Steven; Croff, Allen

Year Published: 2016

Reevaluation of the Crooked Ridge River- Early Pleistocene (ca. 2 Ma) age and origin of the White Mesa Alluvium, northeastern Arizona

Essential features of the previously named and described Miocene Crooked Ridge River in northeastern Arizona (USA) are reexamined using new geologic and geochronologic data. Previously it was proposed that Cenozoic alluvium at Crooked Ridge and southern White Mesa was pre–early Miocene, the product of a large, vigorous late Paleogene river...

Hereford, Richard; Beard, Sue; Dickinson, William R.; Karlstrom, Karl E.; Heizler, Matthew T.; Crossey, Laura J.; Amoroso, Lee; House, Kyle; Pecha, Mark
Hereford, R. Beard, L.S., Dickinson, W.R., Karlstrom, K.E., Heizler, M.T., Crossey, L.J., Amoroso, L., House, P.K., and Pecha, M., 2016, Reevaluation of the Crooked Ridge River--Early Pleistocene (ca. 2 Ma) age and origin of the White Mesa alluvium, northeastern Arizona: Geosphere, v. 12, no. 3, p. 1-22, https://doi.org/10.1130/GES01124.1.

Year Published: 2016

Seasonal changes in atmospheric noise levels and the annual variation in pigeon homing performance

Repeated releases of experienced homing pigeons from single sites were conducted between 1972 and 1974 near Cornell University in upstate New York and between 1982 and 1983 near the University of Pittsburgh in western Pennsylvania, USA. No annual variation in homing performance was observed at these sites in eastern North America, in contrast to...

Hagstrum, Jonathan T.; McIsaac, Hugh P.; Drob, Douglas P.
Hagstrum, J.T., McIsaac, H.P. and Drob, D.P., 2016, Seasonal changes in atmospheric noise levels and the annual variation in pigeon homing performance: Journal of Comparative Physiology A, v. 202, p. 413-424, doi:10.1007/s00359-016-1087-y.

Year Published: 2016

The F'derik-Zouerate iron district: Mesoarchean and Paleoproterozoic iron formation of the Tiris Complex, Islamic Republic of Mauritania

High-grade hematitic iron ores (of HIF, containing 60-65 wt%Fe) have been mined in Mauritania since 1952 from Superior-type iron deposits of the F'derik-Zouerate district.  Depletion of the high-grade ores in recent years has resulted in new exploration projects focused on lower-grade magnetite ores occurring in Algoma-type banded iron...

Bouabdellah, Mohammed; Slack, John F.; Taylor, Cliff D.; Finn, Carol A.; Anderson, Eric D.; Bradley, Dwight C.; Joud, Mohamed; Taleb Mohamed, Ahmed; Horton, John D.; Johnson, Craig A.

Year Published: 2016

Geologic history of the Blackbird Co-Cu district in the Lemhi subbasin of the Belt-Purcell Basin

The Blackbird cobalt-copper (Co-Cu) district in the Salmon River Mountains of east-central Idaho occupies the central part of the Idaho cobalt belt—a northwest-elongate, 55-km-long belt of Co-Cu occurrences, hosted in grayish siliciclastic metasedimentary strata of the Lemhi subbasin (of the Mesoproterozoic Belt-Purcell Basin). The Blackbird...

Bookstrom, Arthur A.; Box, Stephen E.; Cossette, Pamela M.; Frost, Thomas P.; Gillerman, Virginia; King, George; Zirakparvar, N. Alex

Year Published: 2016

Geology of the Greenwater Range, and the dawn of Death Valley, California—Field guide for the Death Valley Natural History Conference, 2013

Much has been written about the age and formation of Death Valley, but that is one—if not the last—chapter in the fascinating geologic history of this area. Igneous and sedimentary rocks in the Greenwater Range, one mountain range east of Death Valley, tell an earlier story that overlaps with the formation of Death Valley proper. This...

Calzia, J.P.; Rämö, O.T.; Jachens, Robert; Smith, Eugene; Knott, Jeffrey
Calzia, J.P., Rämö, O.T., Jachens, Robert, Smith, Eugene, and Knott, Jeffrey, 2016, Geology of the Greenwater Range, and the dawn of Death Valley, California—Field guide for the Death Valley Natural History Conference, 2013: U.S. Geological Survey Open-File Report 2016–1064, 32 p., http://dx.doi.org/10.3133/ofr20161064.

Year Published: 2016

Geologic and geochemical insights into the formation of the Taiyangshan porphyry copper–molybdenum deposit, Western Qinling Orogenic Belt, China

Taiyangshan is a poorly studied copper–molybdenum deposit located in the Triassic Western Qinling collisional belt of northwest China. The intrusions exposed in the vicinity of the Taiyangshan deposit record episodic magmatism over 20–30 million years. Pre-mineralization quartz diorite porphyries, which host some of the...

Kun-Feng Qiu; Taylor, Ryan D.; Yao-Hui Song; Hao-Cheng Yu; Kai-Rui Song; Nan Li

Year Published: 2016

The Chahnaly low sulfidation epithermal gold deposit, western Makran volcanic arc, southeastern Iran

The Chahnaly low-sulfidation epithermal Au deposit and nearby Au prospects are located northwest of the intermittently active Bazman stratovolcano on the western end of the Makran volcanic arc, which formed as the result of subduction of the remnant Neo-Tethyan oceanic crust beneath the Lut block. The arc hosts the Siah Jangal epithermal and...

Sholeh, Ali; Rastad, Ebrahim; Huston, David L.; Gemmell, J. Bruce; Taylor, Ryan D.
Sholeh, A., Rastad, E., Huston, D., Gemmell, J.B., and Taylor, R.D., 2016, The Chahnaly low sulfidation epithermal gold deposit, western Makran volcanic arc, southeastern Iran: Economic Geology, v. 111, p. 619-639

Filter Total Items: 119
Image shows USGS scientists standing beside a drill rig in protective gear.
September 16, 2015
USGS scientists drilling a research core near Waco, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc. The USGS assesses undiscovered, technically recoverable oil and gas resources for the onshore United States and...
Image shows USGS scientists standing beside a drill rig in protective gear.
September 16, 2015
USGS scientists drilling a research core near Waco, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc. The USGS assesses undiscovered, technically recoverable oil and gas resources for the onshore United States and...
Image shows USGS scientists standing beside a drill rig in protective gear.
September 14, 2015
USGS scientists drilling a research core near Waco, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc. The USGS assesses undiscovered, technically recoverable oil and gas resources for the onshore United States and...
Image shows USGS scientists standing beside a drill rig in protective gear.
September 14, 2015
USGS scientists drilling a research core near Waco, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc. The USGS assesses undiscovered, technically recoverable oil and gas resources for the onshore United States and...
Image shows a drill core in a box with cardboard dividers
September 12, 2015
A drill core from near Waco, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc. The USGS assesses undiscovered, technically recoverable oil and gas resources for the onshore United States and state territorial waters...
Image shows a drill core in a box with cardboard dividers
September 12, 2015
A drill core from near Waco, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc. The USGS assesses undiscovered, technically recoverable oil and gas resources for the onshore United States and state territorial waters...
Image shows a cross-section of a drill core, held in two gloved hands
September 12, 2015
A drill core from near Waco, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc. The USGS assesses undiscovered, technically recoverable oil and gas resources for the onshore United States and state territorial waters...
geologists doing Alaskan field work with helicopter
2015 (approx.)
Helicopter arriving to pick up geologists after retrieving geophysical equipment from the flanks of Redoubt Volcano, Aleutian Range, Alaska, July 2015
Scientists taking soil samples
September 4, 2014
USGS researchers collecting a soil sample for rare earth elements at the Roy Creek prospect, Alaska
Image shows a sample of lignite on a rock background
2013 (approx.)
A sample of lignite, the lowest rank of coal. It is primarily mined for burning in steam-generation power plants. Read more about our coal research here: https://energy.usgs.gov/Coal/AssessmentsandData/CoalAssessments.aspx
Image shows a sample of anthracite coal on a rock backdrop
2013 (approx.)
This is anthracite, the highest rank of coal. It is a hard, brittle, and black lustrous coal, often referred to as hard coal, containing a high percentage of fixed carbon and a low percentage of volatile matter. Anthracite is not as commonly mined as other ranks of coal. It played a significant role in Pennsylvania coal during the Industrial Revolution in the United States. Learn more about our...
Image shows a sample of lignite on a rock background
2013 (approx.)
A sample of lignite, the lowest rank of coal. It is primarily mined for burning in steam-generation power plants. Read more about our coal research here: https://energy.usgs.gov/Coal/AssessmentsandData/CoalAssessments.aspx
Filter Total Items: 120
USGS science for a changing world logo
November 3, 2015

On average, streams in the Niobrara-Mowry Play of eastern Wyoming, Fayetteville Play of Arkansas, and Barnett Play of Texas ranked most vulnerable to unconventional oil and gas development, but for different reasons, according to recent U.S. Geological Survey coauthored research.

USGS science for a changing world logo
October 14, 2015

Many grassland bird species in the Bakken shale region, including some seriously declining populations, are displaced from their habitats as a result of oil and gas development, according to new U.S. Geological Survey research.

Aerial view of the Grabens, Canyonlands National Park
October 12, 2015

A graben is a piece of Earth’s crust that is shifted downward in comparison to adjacent crust known as “horsts,” which are shifted upward.

Map of San Joaquin Basin Province
October 6, 2015

The Monterey Formation in the deepest parts of California’s San Joaquin Basin contains an estimated mean volumes of 21 million barrels of oil, 27 billion cubic feet of gas, and 1 million barrels of natural gas liquids, according to the first USGS assessment of continuous (unconventional), technically recoverable resources in the Monterey Formation.

An image of calcite.
September 21, 2015

The process in which magnesium is removed from the mineral dolomite (calcium magnesium carbonate) leaving behind the minerals calcite (calcium carbonate) and periclase (magnesium oxide.)

Image: Moon over Half Dome
September 7, 2015

Despite sounding like something out of Harry Potter, a batholith is a type of igneous rock that forms when magma rises into the earth’s crust, but does not erupt onto the surface. The magma cools beneath the earth’s surface, forming a rock structure that extends at least one hundred square kilometers across (40 square miles), and extends to an unknown depth.

Side by side comparison of a malformed and normal chitinozoan specimen
August 31, 2015

Toxic metals such as iron, lead and arsenic may have helped cause mass extinctions in the world’s oceans millions of years ago, according to recent research from the U.S. Geological Survey, the National Center for Scientific Research, France; and Ghent University, Belgium.

The USGS streamgage on Cement Creek at Silverton, Colorado, measures continuous stream stage and discharge. Cement Creek is part
August 20, 2015

On August 5, while investigating the Gold King Mine in southwestern Colorado, the U.S Environmental Protection Agency accidentally triggered the release of approximately three million gallons of acidic, metal-rich mine wastewater from the Gold King Mine into Cement Creek, a tributary of the Animas River.

collage of scientists conducting science related to each mission are
August 10, 2015

ANCHORAGE, Alaska — In the 20th century, Baranof Island in Southeastern Alaska has drawn attention for its gold, chrome and nickel deposits, timber industry, potential activity of the dormant Mount Edgecumbe volcano, and for numerous commercially developed hot springs.

Map showing percentage of hydraulic fracturing water use
June 30, 2015

The amount of water required to hydraulically fracture oil and gas wells varies widely across the country, according to the first national-scale analysis and map of hydraulic fracturing water usage detailed in a new USGS study accepted for publication in Water Resources Research, a journal of the American Geophysical Union.

collage of scientists conducting science related to each mission are
June 19, 2015

SPOKANE, Wash. — Significant amounts of undiscovered copper may be present in northeast Asia according to a new U.S. Geological Survey report. USGS scientists evaluated the potential for copper in undiscovered porphyry copper deposits in Russia and northeastern China as part of a global mineral resource assessment.

USGS science for a changing world logo
June 8, 2015

North America may have once been attached to Australia, according to research just published in Lithosphere and spearheaded by U.S. Geological Survey geologist James Jones and his colleagues at Bucknell University and Colorado School of Mines.