Images

USGS research geologist Jon Warrick explains how his team applied structure-from-motion analysis to photos from the California Coastal Records Project to measure coastal change. Jon Warrick explains a “difference map” constructed from structure-in-motion data. Red areas indicate loss of material (erosion); blue areas show addition of material (deposition).

View of the Ohmmapper system electrodes being pulled behind a small truck in order to map the near surface geology of Sunflower County, Mississippi near the town of Shellmound.  Photo by Ben Miller, 2016

The upper part of the Tuul River Basin in Mongolia contains pristine water originating mostly from snowmelt. More information on this study is available at https://doi.org/10.3133/ofr20161096.

Waterborne resistivity survey in progress on the Tallahatchie River, Leflore County, Mississippi.  GPS unit and depth sounder are visible attached to the front of the boat.  Photo by James R. Rigby, 2016

Land subsidence contours showing vertical changes in land surface in the central San Joaquin Valley area, California, during January 8, 2008-January 13, 2010. The top graph illustrates elevation changes computed from repeat geodetic surveys along Highway 152 for 1972-2004.

Many flowing wells have been abandoned in the Ararat Valley in Armenia. Abandoned wells create environmental hazards (such as pathways for contamination from the land surface to reach the aquifer if well casing deteriorates in nonflowing wells) and continued depletion of the artesian aquifer from flowing wells.

Alaska Interior mountain range shot with snow capped mountains. 

Alejandro Grajal-Puche shows an Argentine black-and-white tegu (Tupinambis merianae) with a radio-transmitter backpack over its pelvis. USGS photo.

USGS and other scientists have studied in-depth alligator populations in Florida and Louisiana, but basic ecological knowledge is lacking for populations at the northern edge of their range.

Many species of Hawaiian honeycreepers have persisted into the 20th century because high elevation rain forests on the islands of Kaua’i, Maui, and Hawai’i are cool enough to limit transmission of introduced avian malaria (Plasmodium relictum).

Jason Payne driving an ATV pulling an array of electrodes for mapping the near surface geology in the vicinity of Steiner, Mississippi.

A sample of augelite and quartz. Augelite is an aluminum phosphate mineral, primarily prized for collecting rather than as a source for its industrial mineral components.

Sample provided by Carlin Green, USGS. Sample originated from Mundo Nuevo Mine, Peru, and is 3.7cm in size.

This is a sample of axinite with iron, making it ferroaxinite. Axinite is primarily used as a collectors mineral.

Sample provided by Carlin Green, USGS. Sample originated from Puiva Mount, Russia, and is 3.0cm in size.

A sample of azurite, the blue mineral, and malachite, the green mineral. Both azurite and malachite are copper minerals that were once used as pigments but are now mostly valued as collectors minerals. They do serve as good indicators of copper deposits that can be developed.

A sample of bastnaesite, one of the principal mineral sources of rare-earth elements. Rare-earth elements are essential components in most modern electronics.

Bath Creek, upstream of Blowing Springs Campground, George Washington National Forest, Bath County, VA.

Closeup of the Beryllium Tuff member, Spor Mountain, Utah.

Black and white Tegu lizard in the Florida Everglades grass. 

Woods Hole Core Lab Manager, Brian Buczkowski,  giving a tour of the lab to local teachers participating in a professional development workshop

A Bristle-thighed Curlew on the tundra.  This photo was taken during the Changing Arctic Ecosystems Boreal-Arctic Transition program.

1-meter-resolution digital image mosaic along the southeast coast of O‘ahu was combined with lidar bathymetry data to create a shaded-relief image.