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Image shows gas hydrates in marine sediments with a red pen for scale
December 31, 2006

Gas Hydrates in Marine Sediments from the Indian Ocean

This image shows gas hydrates (the white material) in marine sediments from a test well drilled in the Indian Ocean in 2006 during the Indian National Gas Hydrate Program (NGHP) Expedition 01.

The NGHP Expedition 01 was designed to study the gas-hydrate occurrences off the Indian Peninsula and along the Andaman convergent margin with special emphasis on

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May 23, 2006

rare earth oxides

These rare-earth oxides are used as tracers to determine which parts of a watershed are eroding. Clockwise from top center: praseodymium, cerium, lanthanum, neodymium, samarium, and gadolinium. Image Number D1115-1. Photo by Peggy Greb, USDA-ARS.

Image shows gas hydrate samples in blue-gloved hands
December 31, 2002

Gas Hydrates in Marine Sediments off the Oregon Coast

During Ocean Drilling Program Leg 204, nine sites were cored and wireline logged on the Oregon continental margin to determine the distribution and concentration of gas hydrates in an accretionary ridge setting, investigate the mechanisms that transport methane and other gases into the gas hydrate stability zone, and obtain constraints on physical properties of gas

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Image shows a rock cairn on a snowy peak with the sun on the horizon
December 31, 2002

Inukshuk at the Mallik Gas Hydrate Test Site in Canada

This image shows an inukshuk, a stone cairn used by indigenous peoples in northern latitudes, particularly in places like northern Canada. 

This inukshuk is located near the Mallik test site in Canada's Mckenzie Delta. USGS joined the Geological Survey of Canada, JAPEX, and thehe Japanese National Oil Company to drill test wells for natural gas production from gas

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Image shows a drill rig on a snowy landscape with the sun on the horizon
December 31, 2002

Gas Hydrate Drill Rig at the Mallik Test Site in Canada

A drill rig at the Mallik test site in Canada's Mckenzie Delta.  USGS joined the Geological Survey of Canada, JAPEX, and the Japanese National Oil Company to drill test wells for natural gas production from gas hydrate deposits. Read more about the Mallik project 

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Brooks Range, Alaska: View southward from Fortress Mountain Formation on Atigun syncline
December 31, 2001

Fortress Mountain Formation, Brooks Range

View southward from Fortress Mountain Formation on Atigun syncline towards Brooks Range.  Trans-Alaska Pipeline, haul road, and Galbraith Lake in valley.  Location in Brooks Range foothills, about 90 miles southeast of Umiat.

Flat underwater surface with many rocks tucked in close to each other; bright stripes of tape on rod that is touching bottom.
December 31, 2000

Cook Islands manganese nodules

A bed of manganese nodules from deep offshore of the Cook Islands; photo sourced from Hein et al., 2015, taken during a Japanese research cruise in the year 2000. Nodules range from about 2 to 10 centimeters across.

See a photo of more

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Two men stand by an oil well pumping unit, one man is crouched over the well, all in a forested location.
August 12, 1999

Oil well pumping unit, south area of the La Honda oil field, CA

The south area of the La Honda oil field, California, was discovered during the late 1950s and produced an estimated 595,000 barrels of oil from about 12 wells, including the well in this photo. Most of the oil was produced from an unusual fossiliferous limestone of Miocene age, informally named the Burns sand, that overlies a thick sequence of Oligocene and Miocene

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April 2, 1984

Mauna Loa Lava Flow, April 2, 1984

A USGS scientist walks along a lava flow from the April 2, 1984 Mauna Loa eruption. The scientist stops to observe a standing wave of lava at the end. The lava flow is moving at 64 km/hr (40 mph) towards Hilo, Hawai'i. 
 

USGS
May 11, 2018

Webinar on Mercury in Reservoirs - February 14th Webinar Flyer

Flyer for webinar on Weds. Feb. 14 – Mercury transport and bioaccumulation in California reservoirs affected by historical gold mining