Unified Interior Regions

Region 1: North Atlantic-Appalachian

Our Science Centers

Our Science Centers

The NAA Region has 15 Science Centers spanning 14 NE States and Washington, DC. The Centers conduct interdisciplinary biologic, geologic, hydrologic, and energy monitoring and research addressing natural resource issues facing our nation.

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August and September Photo Contests

August and September Photo Contests

Check out the winning photographs in the August and September 2021 Photo Contests! Categories include People, USGS at Work, Where We Work, and Honorable Mention.

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Regions L2 Landing Page Tabs

Filter Total Items: 16,199
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Year Published: 2017

Niobium and tantalum

Niobium and tantalum are transition metals that are almost always found together in nature because they have very similar physical and chemical properties. Their properties of hardness, conductivity, and resistance to corrosion largely determine their primary uses today. The leading use of niobium (about 75 percent) is in the production of high-...

Schulz, Klaus J.; DeYoung,, John H.; Seal, Robert R.; Bradley, Dwight C.; Schulz, Klaus J.; Piatak, Nadine M.; Papp, John F.
Schulz, K.J., Piatak, N.M., and Papp, J.F., 2017, Niobium and tantalum, chap. M of Schulz, K.J., DeYoung, J.H., Jr., Seal, R.R., II, and Bradley, D.C., eds., Critical mineral resources of the United States—Economic and environmental geology and prospects for future supply: U.S. Geological Survey Professional Paper 1802, p. M1–M34, https://doi.org/10.3133/pp1802M.

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Year Published: 2017

Selenium

Selenium (Se) was discovered in 1817 in pyrite from copper mines in Sweden. It is a trace element in Earth’s crust, with an abundance of three to seven orders of magnitude less than the major rock-forming elements. Commercial use of selenium began in the United States in 1910, when it was used as a pigment for paints, ceramic glazes, and red glass...

Schulz, Klaus J.; DeYoung,, John H.; Seal, Robert R.; Bradley, Dwight C.; Stillings, Lisa L.
Stillings, L.L., 2017, Selenium, chap. Q of Schulz, K.J., DeYoung, J.H., Jr., Seal, R.R., II, and Bradley, D.C., eds., Critical mineral resources of the United States—Economic and environmental geology and prospects for future supply: U.S. Geological Survey Professional Paper 1802, p. Q1–Q55, https://doi.org/10.3133/pp1802Q.

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Year Published: 2017

Titanium

Titanium is a mineral commodity that is essential to the smooth functioning of modern industrial economies. Most of the titanium produced is refined into titanium dioxide, which has a high refractive index and is thus able to impart a durable white color to paint, paper, plastic, rubber, and wallboard. Because of their high strength-to-weight...

Schulz, Klaus J.; DeYoung,, John H.; Seal, Robert R.; Bradley, Dwight C.; Woodruff, Laurel G.; Bedinger, George M.; Piatak, Nadine M.
Woodruff, L.G., Bedinger, G.M., and Piatak, N.M., 2017, Titanium, chap. T of Schulz, K.J., DeYoung, J.H., Jr., Seal, R.R., II, and Bradley, D.C., eds., Critical mineral resources of the United States—Economic and environmental geology and prospects for future supply: U.S. Geological Survey Professional Paper 1802, p. T1–T23, https://doi.org/10.3133/pp1802T.

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Year Published: 2017

Zirconium and hafnium

Zirconium and hafnium are corrosion-resistant metals that are widely used in the chemical and nuclear industries. Most zirconium is consumed in the form of the main ore mineral zircon (ZrSiO4, or as zirconium oxide or other zirconium chemicals. Zirconium and hafnium are both refractory lithophile elements that have nearly identical charge, ionic...

Schulz, Klaus J.; DeYoung,, John H.; Seal, Robert R. ; Bradley, Dwight C.; Jones, James V.; Piatak, Nadine M.; Bedinger, George M.
Jones, J.V., III, Piatak, N.M., and Bedinger, G.M., 2017, Zirconium and hafnium, chap. V of Schulz, K.J., DeYoung, J.H., Jr., Seal, R.R., II, and Bradley, D.C., eds., Critical mineral resources of the United States—Economic and environmental geology and prospects for future supply: U.S. Geological Survey Professional Paper 1802, p. V1–V26, https://doi.org/10.3133/pp1802V.

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Year Published: 2017

Nanoscale geochemical and geomechanical characterization of dispersed organic matter in shale by infrared nanoscopy

Solid organic matter (OM) plays an essential role in the generation, migration, storage, and production of hydrocarbons from economically important shale rock formations. Electron microscopy images have documented spatial heterogeneity in the porosity of OM at nanoscale, and bulk spectroscopy measurements have documented large variation in the...

Yang, Jin; Hatcherian, Javin J.; Hackley, Paul C.; Pomerantz, Andrew

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Year Published: 2017

Forecasting stream habitat and Brook Trout responses to climate change in Catoctin Mountain Park

Anticipating and mitigating the effects of climate change is a fundamental challenge for natural resource conservation. In this report, we respond to research needs identified by Catoctin Mountain Park (CATO) for native Brook Trout (Salvelinus fontinalis) conservation and management as part of the US Geological Survey (USGS) Natural...

Hitt, Nathaniel P.; Snyder, Craig D.; Snook, Erin; Johnson, Zachary; Morgan, Matthew

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Year Published: 2017

Microsatellite marker development from next-generation sequencing in the New England cottontail (Sylvilagus transitionalis) and cross-amplification in the eastern cottontail (S. floridanus)

ObjectiveThe New England cottontail (Sylvilagus transitionalis) is a species of high conservation priority in the Northeastern United States, and was a candidate for federal listing under the Endangered Species Act until a recent decision determined that conservation actions were sufficient to preclude listing. The aim of this study was to develop...

King, Tim L.; Eackles, Michael; Aunins, Aaron; McGreevy, Thomas J. Jr.; Husband, Thomas P.; Tur, Anthony; Kovach, Adrienne I.

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Year Published: 2017

Generalized hydrogeologic framework and groundwater budget for a groundwater availability study for the glacial aquifer system of the United States

The glacial aquifer system groundwater availability study seeks to quantify (1) the status of groundwater resources in the glacial aquifer system, (2) how these resources have changed over time, and (3) likely system response to future changes in anthropogenic and environmental conditions. The glacial aquifer system extends from Maine to Alaska,...

Reeves, Howard W.; Bayless, E. Randall; Dudley, Robert W.; Feinstein, Daniel T.; Fienen, Michael N.; Hoard, Christopher J.; Hodgkins, Glenn A.; Qi, Sharon L.; Roth, Jason L.; Trost, Jared J.
Reeves, H.W., Bayless, E.R., Dudley, R.W., Feinstein, D.T., Fienen, M.N., Hoard, C.J., Hodgkins, G.A., Qi, S.L., Roth, J.L., and Trost, J.J., 2017, Generalized hydrogeologic framework and groundwater budget for a groundwater availability study for the glacial aquifer system of the United States: U.S. Geological Survey Scientific Investigations Report 2017–5015, 49 p., https://doi.org/10.3133/sir20175015.

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Year Published: 2017

Surficial geologic map of Berrien County, Michigan, and the adjacent offshore area of Lake Michigan

The surficial geologic map of Berrien County, southwestern Michigan (sheet 1), shows the distribution of glacial and postglacial deposits at the land surface and in the adjacent offshore area of Lake Michigan. The geologic map differentiates surficial materials of Quaternary age on the basis of their lithologic characteristics, stratigraphic...

Stone, Byron D.; Kincare, Kevin A.; O'Leary, Dennis W.; Newell, Wayne L.; Taylor, Emily M.; Williams, Van S.; Lundstrom, Scott C.; Abraham, Jared E.; Powers, Michael H.
Stone, B.D., Kincare, K.A., O'Leary, D.W., Newell, W.L., Taylor, E.M., Williams, V.S., Lundstrom, S.C., Abraham, J.E., and Powers, M.H., 2017, Surficial geologic map of Berrien County, Michigan, and the adjacent offshore area of Lake Michigan: U.S. Geological Survey Scientific Investigations Map 3383, 2 sheets, scale 1:50,000, and 49-p. pamphlet, https://doi.org/10.3133/sim3383.

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Year Published: 2017

New method to integrate remotely sensed hydrothermal alteration mapping into quantitative mineral resource assessments

Hydrothermal alteration data mapped using the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) were compiled into hydrothermal alteration polygons for use in an assessment of porphyry copper mineral resource potential in the southwestern United States. Hydrothermal alteration polygons along with geochemistry, gravity and...

Mars, John C.; Hammarstrom, Jane M.; Robinson, Gilpin R.; Ludington, Stephen; Zürcher, Lukas; Folger, Helen W.; Gettings, Mark E.; Solano, Federico; Kress, Thomas

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Year Published: 2017

The efficacy of combined educational and site management actions in reducing off-trail hiking in an urban-proximate protected area

Park and protected area managers are tasked with protecting natural environments, a particularly daunting challenge in heavily visited urban-proximate areas where flora and fauna are already stressed by external threats. In this study, an adaptive management approach was taken to reduce extensive off-trail hiking along a popular trail through an...

Hockett, Karen S.; Marion, Jeffrey L.; Leung, Yu-Fai

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Year Published: 2017

Geomechanical analysis of initial stage of gas production from interbedded hydrate-bearing sediment

Geomechanical stability of marine hydrate reservoirs during gas production by depressurization is the focus of this study. The reservoir considered here consists of thin hydrate rich sandy layers interbedded with mud layers. Because of the input parameter uncertainties involved, it is prudent from a geomechanical perspective to estimate the likely...

Lin, Jeen-Shang; Uchida, Shun; Myshakin, Evgeniy; Seol, Yongkoo; Rutqvist, Jonny; Boswell, Ray; Waite, William F.; Jang, Junbong; Collett, Timothy S.

Filter Total Items: 1,774
Woods Hole Coastal and Marine Science Center Staff on a Field Activity on the R/V Rafael
May 10, 2016

Field Activity 2016-005-FA North of Nantucket, MA

Woods Hole Coastal and Marine Science Center scientists aboard the RV Rafael prepare to launch the Mini SEABOSS just off of Nantucket!  The Mini SEABOSS collects samples, photos and video of the seafloor. 

April 28, 2016

Untapped Capacity: Our 4,000 Species of Native Bees

So many unknowns and so many potentials.

  • In secret, Native Bees, not honey bees, do most of our pollinating
  • Why we don't know the status of 99% of our Native Bees
  • Why are there 400 Native Bees without names
  • Why biodiverse native plant communities = biodiverse native bee communities
photo of a boat marina on Long Island coast
April 25, 2016

Long Island Boat Marina

Boat marina on Long Island coast

groundwater model demonstration at Shinnecock Nation
April 23, 2016

Demonstrating a groundwater model at the Shinnecock Nation Earth Day

Sim Rivera demonstrating a groundwater model to children at the Shinnecock Nation Earth Day outreach event.

A Russian corer set lays laid out on the floor
April 20, 2016

Pollen Lab Field Gear

This gear, known as a Russian corer, is commonly used to extract sediment cores from field sites. 

A lab technician sieves a sample in the pollen lab
April 19, 2016

Sieving a Sample to Extract Pollen, Pollen Laboratory

In this photo, a lab technician sieves a sample to get rid of fine minerals (such as clay).

A lab technician pipets out the pollen from the heavier mineral material.
April 19, 2016

Swirling a Sample to Separate Pollen from Minerals, Pollen Laboratory

In a watch glass, a lab technician swirls out pollen from heavier mineral material and then pipets it out.