Images

A USGS scientist holds an invasive brown treesnake.

USGS technicians at the USGS Gulf Coast #4 Bonham borehole in preparation for geophysical logging of the Austin Chalk Group and the Eagle Ford Group mudstones, Fannin County, Texas.

Bedding features in the core from the USGS Gulf Coast #4 Bonham borehole, in the Eagle Ford Group mudstones from a depth of about 401 feet, Fannin County, Texas. The Eagle Ford Group lies underneath the Austin Chalk and serves as the source rock for much of the Austin Chalk's petroleum.

Geologists discuss the geology of Jurassic rocks in thurst-faulted structures near the southern limit of Western North Slope.

Geologist examines f Faulted and folded petroleum source rocks in Jurassic and Cretaceous rocks (Kingak Shale, pebble shale unit, and gamma-ray zone of Hue Shale) in southern part of Western North Slope. Thermal maturity of these rocks is at the upper limit of oil preservations.

Overview of folded Triassic, Jurassic, and Cretaceous rocks in southern part of Western North Slope.

Oil-saturated sandstone in the Nanushuk Formation in westernmost National Petroleum Reserve in Alaska (NPR-A). Oil in these rocks likely was generated beneath Western North Slope and migrated northeastward into NPR-A.

Faulted and folded petroleum source rocks in Jurassic and Cretaceous rocks (Kingak Shale, pebble shale unit, and gamma-ray zone of Hue Shale) in southern part of Western North Slope. Thermal maturity of these rocks are at the upper limit of oil preservations.

USGS scientist uses a weighted basket sampler to collect a Time of Travel red-dye sample at WaterOne in Olathe, Kansas. 

USGS scientist Chantelle Davis prepares to collect a red-dye sample, at sunrise, for the Time of Travel study in Olathe, Kansas. 

USGS scientist Ian Gambill gets a field fluorometer reading from a recently collected red-dye study sample from the Kansas River in DeSoto, Kansas.

Photograph of Kingsbury Stream at Abbot Village, Maine, from USGS streamgage 01031450 on September 29, 2020.

USGS map of Earth MRI projects in West Virginia announced in September 2020.

USGS scientist watches over the many samples collected during the red-dye study trial run in Desoto, Kansas while he awaits the next sample.

USGS map of Earth MRI projects in Texas' Trans-Pecos region announced in September 2020.

A black carp collected by USGS scientists from the Mississippi River. Credit: USGS.

Landsat 8 image on the Utah-Arizona Border on the Navajo Nation acquired on September 18, 2020.

For more information about Landsat, please visit www.usgs.gov/Landsat

To download the data, visit earthexplorer.usgs.gov

Throughout the historically active 2020 Atlantic Hurricane Season,USGS hydrologists have been working quickly to collect vital flood and streamflow information in impacted areas.

In this NOAA satellite image from Sept. 15, 2020, Hurricane Sally approaches the U.S. Gulf Coast, Hurricane Paulettte creates storm waves far out in the Atlantic, and Tropical Storms Teddy and Vicky lie near the coast of Africa. Two tropical depressions are also developing; one of them is not visible in this image.

USGS scientist John Fulton measures streamflow on Middle Fork Ranch Creek, Colorado using instream, conventional methods. USGS radar equipment is also shown recording non-contact river discharge.  

A firefighter wearing safety gear and holding a drip torch walks away from a line of burning vegetation.