Unified Interior Regions

Region 1: North Atlantic-Appalachian

January Photo Contest

January Photo Contest

Check out the winning photographs in the January 2020 Photo Contest! Categories include People, USGS at Work, Where We Work, and Honorable Mention

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Regions L2 Landing Page Tabs

Filter Total Items: 15,337
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Year Published: 2016

Regional chloride distribution in the Northern Atlantic Coastal Plain aquifer system from Long Island, New York, to North Carolina

The aquifers of the Northern Atlantic Coastal Plain are the principal source of water supply for the region’s nearly 20 million residents. Water quality and water levels in the aquifers, and maintenance of streamflow, are of concern because of the use of this natural resource for water supply and because of the possible effects of climate...

Charles, Emmanuel
Charles, E.G., 2016, Regional chloride distribution in the Northern Atlantic Coastal Plain aquifer system from Long Island, New York, to North Carolina: U.S. Geological Survey Scientific Investigations Report 2016–5034, 37 p., appendixes, http://dx.doi.org/10.3133/sir20165034.

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Year Published: 2016

Sustainability of groundwater supplies in the Northern Atlantic Coastal Plain aquifer system

Groundwater is the Nation’s principal reserve of freshwater. It provides about half our drinking water, is essential to food production, and facilitates business and industry in developing economic well-being. Groundwater is also an important source of water for sustaining the ecosystem health of rivers, wetlands, and estuaries throughout...

Masterson, John P.; Pope, Jason P.
Masterson, J.P., and Pope, J.P., 2016, Sustainability of groundwater supplies in the Northern Atlantic Coastal Plain aquifer system: U.S. Geological Survey Fact Sheet 2016–3046, 6 p., http://dx.doi.org/10.3133/fs20163046.

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Year Published: 2016

Forward

No abstract available.

Fisher, Robert D.; Ludwig, Craig A.; Reynolds, Robert; Helgen, Kristopher M.
Reynolds, R.P. and Helgen, K.M., 2016, Forward, in Fisher, R. D. and Ludwig, C. A., Catalog of type specimens of recent mammals: Orders Carnivora, Perissodactyla, Artiodactyla, and Cetacea in the National Museum of Natural History, Smithsonian Institution: Washington, DC, Smithsonian Institution. Smithsonian Contributions to Zoology No. 646, p. 1-2.

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Year Published: 2016

Tumours in white suckers from Lake Michigan tributaries: Pathology and prevalence

The prevalence and histopathology of neoplastic lesions were assessed in white suckerCatostomus commersonii captured at two Lake Michigan Areas of Concern (AOCs), the Sheboygan River and Milwaukee Estuary. Findings were compared to those observed at two non-AOC sites, the Root and Kewaunee rivers. At each site, approximately 200 adult suckers were...

Blazer, Vicki S.; Walsh, H.L.; Braham, R.P.; Hahn, C. M.; Mazik, P.; McIntyre, P.B.

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Year Published: 2016

Shallower structure and geomorphology of the southern Puerto Rico offshore margin

Oblique convergence between the North American and Caribbean plates along the eastern Greater Antilles island arc has yielded the compressive Muertos margin in the backarc region. The Muertos margin is characterized by an asymmetric thrust belt with overall opposite vergence to the subduction system in the forearc region. Offshore south of Puerto...

Granja, Bruna J.L.; Muñoz-Martín, A.; Carbó-Gorosabel, A.; Llanes, Estrada P.
J.L. Granja Bruña, U.S. ten Brink, A. Muñoz-Martín, A. Carbó-Gorosabel, P. Llanes Estrada, Shallower structure and geomorphology of the southern Puerto Rico offshore margin, Marine and Petroleum Geology, Volume 67, November 2015, Pages 30-56, ISSN 0264-8172, http://dx.doi.org/10.1016/j.marpetgeo.2015.04.014.

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Year Published: 2016

Chesapeake Bay fish–osprey (Pandion haliaetus) food chain: Evaluation of contaminant exposure and genetic damage

From 2011 to 2013, a large-scale ecotoxicological study was conducted in several Chesapeake Bay (USA) tributaries (Susquehanna River and flats, the Back, Baltimore Harbor/Patapsco Rivers, Anacostia/ middle Potomac, Elizabeth and James Rivers) and Poplar Island as a mid-Bay reference site. Osprey (Pandion haliaetus) diet and the transfer of...

Lazarus, Rebecca S.; Rattner, Barnett A.; McGowan, Peter C.; Hale, Robert C.; Karouna-Reiner, Natalie K.; Erickson, Richard A.; Ottinger, Mary Ann
Lazarus, R. S., Rattner, B. A., McGowan, P. C., Hale, R. C., Karouna-Renier, N. K., Erickson, R. A., and Ottinger, M. A., 2016, Chesapeake Bay fish-osprey (Pandion haliaetus) food chain: Evaluation of contaminant exposure and genetic damage: Environmental Toxicology and Chemistry, v. 35, no. 6, p. 1560–1575.

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Year Published: 2016

Centimeter-scale surface deformation caused by the 2011 Mineral, Virginia, earthquake sequence at the Carter farm site—Subsidiary structures with a quaternary history

Centimeter-scale ground-surface deformation was produced by the August 23, 2011, magnitude (M) 5.8 earthquake that occurred in Mineral, Virginia. Ground-surface deformation also resulted from the earthquake aftershock sequence. This deformation occurred along a linear northeast-trend near Pendleton, Virginia. It is approximately 10 kilometers (km...

Harrison, Richard W.; Schindler, J. Stephen; Pavich, Milan J.; Horton, J. Wright; Carter, Mark W.
Harrison, R.W., Schindler, J.S., Pavich, M.J., Horton, J.W., Jr., and Carter, M.W., 2016, Centimeter-scale surface deformation caused by the 2011 Mineral, Virginia, earthquake sequence at the Carter farm site—Subsidiary structures with a Quaternary history: U.S. Geological Survey Open-File Report 2016–1134, 18 p., http://dx.doi.org/10.3133/ofr20161134.

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Year Published: 2016

Mineral resources of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming

Scientific Investigations Report 2016–5089 and accompanying data releases are the products of the U.S. Geological Survey (USGS) Sagebrush Mineral-Resource Assessment (SaMiRA). The assessment was done at the request of the Bureau of Land Management (BLM) to evaluate the mineral-resource potential of some 10 million acres of Federal and adjacent...

Day, Warren C.; Frost, Thomas P.; Hammarstrom, Jane M.; Zientek, Michael L.
Day, W.C., Frost, T.P., Hammarstrom, J.M., and Zientek, M.L., eds., 2016, Mineral Resources of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming: U.S. Geological Survey Scientific Investigations Report 2016–5089, http://dx.doi.org/10.3133/sir20165089.

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Year Published: 2016

Overview with methods and procedures of the U.S. Geological Survey mineral-resource assessment of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming: Chapter A in Mineral resources of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming

This report, chapter A of Scientific Investigations Report 2016–5089, provides an overview of the U.S. Geological Survey (USGS) Sagebrush Mineral-Resource Assessment (SaMiRA). The report also describes the methods, procedures, and voluminous fundamental reference information used throughout the assessment. Data from several major publicly...

Day, Warren C.; Hammarstrom, Jane M.; Zientek, Michael L.; Frost, Thomas P.
Day, W.C., Hammarstrom, J.M., Zientek, M.L., and Frost, T.P., eds., 2016, Overview with methods and procedures of the U.S. Geological Survey mineral-resource assessment of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming (ver. 2.0, October 2016): U.S. Geological Survey Scientific Investigations Report 2016–5089–A, 211 p., http://dx.doi.org/10.3133/sir20165089A.

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Year Published: 2016

Spatial differences in hydrologic characteristics and water chemistry of a temperate coastal plain peatland: The Great Dismal Swamp, USA

Spatial differences in hydrologic processes and geochemistry across forested peatlands control the response of the wetland-community species and resiliency to natural and anthropogenic disturbances. Knowing these controls is essential to effectively managing peatlands as resilient wetland habitats. The Great Dismal Swamp is a 45,325 hectare...

Speiran, Gary K.; Wurster, Frederick C.

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Year Published: 2016

Predicting the occurrence of cave-inhabiting fauna based on features of the earth surface environment

One of the most challenging fauna to study in situ is the obligate cave fauna because of the difficulty of sampling. Cave-limited species display patchy and restricted distributions, but it is often unclear whether the observed distribution is a sampling artifact or a true restriction in range. Further, the drivers of the distribution could be...

Christman, Mary C.; Doctor, Daniel H.; Niemiller, Matthew L.; Weary, David J.; Young, John A.; Zigler, Kirk S.; Culver, David C.

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Year Published: 2016

Bedrock geologic map of the Hartland and North Hartland quadrangles, Windsor County, Vermont, and Sullivan and Grafton Counties, New Hampshire

The bedrock geology of the 7.5-minute Hartland and North Hartland quadrangles, Vermont-New Hampshire, consists of highly deformed and metamorphosed lower Paleozoic metasedimentary, metavolcanic, and metaplutonic rocks of the Bronson Hill anticlinorium (BHA) and the Connecticut Valley trough (CVT). Rocks of the Orfordville anticlinorium on this map...

Walsh, Gregory J.
Walsh, G.J., 2016, Bedrock geologic map of the Hartland and North Hartland quadrangles, Windsor County, Vermont, and Sullivan and Grafton Counties, New Hampshire: U.S. Geological Survey Scientific Investigations Map 3361, 2 sheets, scale 1:24,000, https://doi.org/10.3133/sim3361.

Filter Total Items: 1,025
Photograph of Head of the Meadow Beach shoreline

Head of the Meadow Beach video camera 1 timex image

Two video cameras are mounted on a bluff near Head of the Meadow Beach, Cape Cod National Seashore, North Truro, MA. One camera looks directly offshore (north east), and the second looks alongshore (north-northeast). A timex is a time-averaged image of all frames, smoothing away surface waves and determining the location of persistent wave-breaking (indicative of shallow

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Image: Middle Dam (Maine) Well Drilling

Middle Dam (Maine) Well Drilling

USGS hydrologist Martha Nielsen examines cuttings as a drill crew works to drill a new monitoring well at USGS station 443647070552303 (ME-OW400A) near Middle Dam on Lower Richardson Lake. The existing well heaved due to frost and had to be replaced.

Photograph of Head of the Meadow Beach shoreline

Head of the Meadow Beach video camera 2 timex image

Two video cameras are mounted on a bluff near Head of the Meadow Beach, Cape Cod National Seashore, North Truro, MA. One camera looks directly offshore (north east), and the second looks alongshore (north-northeast). A timex is a time-averaged image of all frames, smoothing away surface waves and determining the location of persistent wave-breaking (indicative of shallow

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