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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
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
Haleakala National Park.
Haleakala National Park.
Sunrise over Haleakala National Park.
Haleakala National Park.
This tadpole shows signs of a severe Perkinsea infection.
This tadpole shows signs of a severe Perkinsea infection.
This tadpole shows signs of severe Perkinsea infection, which causes organ failure.
This tadpole shows signs of severe Perkinsea infection, which causes organ failure.
Moose lying in the snow amongst the trees.
Moose lying in the snow amongst the trees.
Example of wellhead plumbing typical of public wells sampled in a USGS study of 932 public wells nationwide. About 105 million peopleor more than one-third of the Nation's populationreceive their drinking water from one of the 140,000 public water systems across the United States that rely on groundwater pumped from public wells.
Example of wellhead plumbing typical of public wells sampled in a USGS study of 932 public wells nationwide. About 105 million peopleor more than one-third of the Nation's populationreceive their drinking water from one of the 140,000 public water systems across the United States that rely on groundwater pumped from public wells.
Right steps in the Denali fault trace on the Canwell Glacier caused large rhombehedral chasms to form. Patty Craw in background. This photo was on the front page of the Anchorage Daily News.
Right steps in the Denali fault trace on the Canwell Glacier caused large rhombehedral chasms to form. Patty Craw in background. This photo was on the front page of the Anchorage Daily News.
View northward of mountain near Gillette Pass showing sackung features. Here the mountaintop moved downward like a keystone, producing an uphill-facing scarp. The main Denali fault trace is on the far side of the mountain and a small splay fault is out of view below the photo.
View northward of mountain near Gillette Pass showing sackung features. Here the mountaintop moved downward like a keystone, producing an uphill-facing scarp. The main Denali fault trace is on the far side of the mountain and a small splay fault is out of view below the photo.
Landslide debris on the west fork of the Gakona Glacier. Note helicopter on right for scale! View to east.
Landslide debris on the west fork of the Gakona Glacier. Note helicopter on right for scale! View to east.
The Denali fault offset crevasses on the Canwell Glacier.
The Denali fault offset crevasses on the Canwell Glacier.
Fault trace on Gakona Glacier. Tracks are from where geologists measured the fault offset.
Fault trace on Gakona Glacier. Tracks are from where geologists measured the fault offset.
Patty Craw, DGGS, stands in front of the Susitna Glacier thrust fault. The November 3 earthquake started with an M7.2 earthquake along this fault.
Patty Craw, DGGS, stands in front of the Susitna Glacier thrust fault. The November 3 earthquake started with an M7.2 earthquake along this fault.
Helicopters and satellite phones were integral to the geologic field response. Here, Peter Haeussler is calling a seismologist to pass along the discovery of the Susitna Glacier thrust fault. View is to the north up the Susitna Glacier. The Denali fault trace lies in the background where the two landslides can be seen.
Helicopters and satellite phones were integral to the geologic field response. Here, Peter Haeussler is calling a seismologist to pass along the discovery of the Susitna Glacier thrust fault. View is to the north up the Susitna Glacier. The Denali fault trace lies in the background where the two landslides can be seen.
View south along the Trans Alaska Pipeline in the zone where it was engineered for the Denali fault. The fault trace passes beneath the pipeline between the 2nd and 3rd slider supports at the far end of the zone. A large arc in the pipe can be seen in the pipe on the right, due to shortening of the zigzag-shaped pipeline trace within the fault zone.
View south along the Trans Alaska Pipeline in the zone where it was engineered for the Denali fault. The fault trace passes beneath the pipeline between the 2nd and 3rd slider supports at the far end of the zone. A large arc in the pipe can be seen in the pipe on the right, due to shortening of the zigzag-shaped pipeline trace within the fault zone.
Peter Haeussler measures offset of the Susitna Glacier thrust fault.
Peter Haeussler measures offset of the Susitna Glacier thrust fault.
The Susitna Glacier thrust fault southwest of the toe of the Susitna Glacier. The rolled over tundra reflects the fault trace.
The Susitna Glacier thrust fault southwest of the toe of the Susitna Glacier. The rolled over tundra reflects the fault trace.
Surface faulting split this tree near the Trans Alaska Pipeline.
Surface faulting split this tree near the Trans Alaska Pipeline.
View southward toward Mt. McGinnis and two large landslides on the northeastern side. These slides had roughly 40 million cubic meters of material and travelled 10 km down glacier. This is the cover photo of the May 16th, 2003, Science.
View southward toward Mt. McGinnis and two large landslides on the northeastern side. These slides had roughly 40 million cubic meters of material and travelled 10 km down glacier. This is the cover photo of the May 16th, 2003, Science.