Images

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).

A USGS researcher measures water and sediment movement at Forsythe National Wildlife Refuge, New Jersey.

Map showing the distribution of physiographic zones within the Buzzards Bay study area. The physiographic zone classification is adapted from Kelley and others (1998), and the zones are delineated on the basis of sea-floor morphology and the dominant texture of surficial material.

A flow tripod (taller, right) and sonar tripod (smaller, left) at the dock before being loaded onto a ship and taken to a site off Fire Island for deployment.

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

Seismic Lab aboard R/V Marcus G. Langseth

Timeline of past drilling activities conducted by countries, private sector firms, government agencies, and academe that have helped to refine global gas hydrate estimates and possible future drilling and production testing

Airgun array aboard R/V Marcus G. Langseth