Images

Preview image of multi-channel seismic data collected by the USGS off the US Seaboard Atlantic as part of the US Extended Continental Shelf project.

Split-beam (EK60) sonar image of bubbles (green) in the water column at a seep site overlooking Baltimore Canyon on the U.S. Atlantic margin. Although the bubbles appear to nearly reach the sea surface, the methane contained in the bubbles would have dissolved and been replaced by other gases by the time the bubbles rise several hundred meters.

Bottom simulating reflector imaged in 2014 by the USGS along a seismic line acquired south of Hudson Canyon during the Extended Continental Shelf cruise.  Image provided by D. Hutchinson and reproduced from USGS Fact Sheet 3080.

An outcrop-scale brittle fault exposed on the shore of Lake Anna in the vicinity of the Dominion North Anna Power Plant.  The fault offsets a pegmatite dike within biotite granitic gneiss by about 1 meter, in a reserve (top-to-east) sense-of-motion.  The small fault is oriented 235°, with a dip of 30° to the northwest (view is to south in this photograph).

Treated wastewater from Joint Base Cape Cod was discharged to rapid-infiltration disposal beds from 1936 to 1995. The disposal formed a groundwater contamination plume that extends more than 10 kilometers in the Cape Cod sand and gravel glacial outwash aquifer.

USGS staff and Tribal GIS workshop participants

Rob Thieler (left), Laura Brothers, and David Foster pull in a cable containing underwater microphones after completing a seismic survey in 2014.

USGS hydrologic technician, Andrew Gorman making an ADCP boat measurement at the Indiana Harbor Canal at East Chicago, IN site.

Offshore Sediment texture and Geomorphology

USGS hydrologists Fred Paillet (USGS emeritus), Alton Anderson, John Lane, and John Williams with their borehole geophysics students in India

Tribal GIS Workshop participanats.

Deployment of an instrumented quadrapod off Martha’s Vineyard, November 2014.

 An instrumented bottom lander is deployed south of Martha's Vineyard, MA in 2014 as part of the “Bottom Stress and the Generation of Vertical Vorticity Over the Inner Shelf” project.

USGS demonstrating borehole geophysical method for detection of chloride plumes

USGS hydrologist Kaitlyn Colella and a Shinnecock Nation member work together gathering oyster and bed sediment samples.  Contaminants released and or mobilized as a result of Hurricane Sandy may be retained in bed sediments in aquatic environments and may be accumulating in exposed organisms, especially at low trophic levels (for example, oysters).

Highway runoff water along the Harem River in Bronx, NY

Long Island Estuary - part of the North Atlantic Coastal Plain

Black River at Elyria, OH - lowflow

Black River at Elyria, OH - low flow

USGS gage house on Long Island, New York