Skip to main content
U.S. flag

An official website of the United States government

Publications

Filter Total Items: 1145

Miocene−Pleistocene deformation of the Saddle Mountains: Implications for seismic hazard in central Washington, USA

The Yakima fold province, located in the backarc of the Cascadia subduction zone, is a region of active strain accumulation and deformation distributed across a series of fault-cored folds. The geodetic network in central Washington has been used to interpret large-scale N-S shortening and westward-increasing strain; however, geodetic data are unable to resolve shortening rates across individual s
Authors
Lydia M. Staisch, Harvey Kelsey, Brian Sherrod, Andreas Möller, James B. Paces, Richard J. Blakely, Richard Styron

Impact-related microspherules in Late Pleistocene Alaskan and Yukon “muck” deposits signify recurrent episodes of catastrophic emplacement

Large quantities of impact-related microspherules have been found in fine-grained sediments retained within seven out of nine, radiocarbon-dated, Late Pleistocene mammoth (Mammuthus primigenius) and bison (Bison priscus) skull fragments. The well-preserved fossils were recovered from frozen “muck” deposits (organic-rich silt) exposed within the Fairbanks and Klondike mining districts of Alaska, US
Authors
Jonathan T. Hagstrum, Richard B. Firestone, Allen West, James C. Weaver, Ted E. Bunch

Introduction to the 2008 Circum-Arctic Resource Appraisal (CARA) professional paper

The amount of yet-to-find oil and gas in the high northern latitudes is one of the great uncertainties of future energy supply. The possibility of extensive new petroleum developments in the Arctic Ocean is of interest to the Arctic nations, to petroleum companies, and to those concerned with the delicate and changing Arctic environment. The U.S. Geological Survey (USGS) 2008 Circum-Arctic Resourc
Authors
Donald L. Gautier, Thomas E. Moore

Benefits of the fire mitigation ecosystem service in the Great Dismal Swamp National Wildlife Refuge, Virginia, USA

 The Great Dismal Swamp (GDS) National Wildlife Refuge delivers multiple ecosystem services, including air quality and human health via fire mitigation. Our analysis estimates benefits of this service through its potential to reduce catastrophic wildfire related impacts on the health of nearby human populations. We used a combination of high-frequency satellite data, ground sensors, and air qualit
Authors
Bryan M. Parthum, Emily J. Pindilli, Dianna M. Hogan

Marine geology and tectonics--What is under all that water?

This chapter is divided into two main sections. The first section is on Marine Geology Seascapes (what earth scientists call bathymetry). The second section is on Tectonics of Marine Areas.
Authors
David W. Scholl, Warren J. Nokleberg

Regional geology and tectonics

This chapter describes the regional geology and tectonic origins of the major geologic units for the Northern Cordillera. The goals of the chapter are to: (1) provide a summary and regional overview of this vast region that contains a complicated geologic history; and (2) describe the major geologic units and tectonic events that cover a broad geologic time span from the Proterozoic to the Holocen
Authors
Warren J. Nokleberg

Geologic road guides for the Southern Canadian Cordillera--Viewing geology and tectonics along major highways

The Geologic Road Guides for the Southern Canadian Cordillera provide a layperson’s understanding of the major geologic units and their tectonic origins along portions of two sets of major highways corridors, herein termed the Southern Road Guide and the Northern Road Guide. The two routes are shown on the Southern Canadian Cordillera Geologic Map. The first page of each Road Guide is this map tha
Authors
Warren J. Nokleberg, Raymond A. Price

Networking our science to characterize the state, vulnerabilities, and management opportunities of soil organic matter

Soil organic matter (SOM) supports the Earth's ability to sustain terrestrial ecosystems, provide food and fiber, and retains the largest pool of actively cycling carbon. Over 75% of the soil organic carbon (SOC) in the top meter of soil is directly affected by human land use. Large land areas have lost SOC as a result of land use practices, yet there are compensatory opportunities to enhance prod
Authors
Jennifer W. Harden, Gustaf Hugelius, Anders Ahlström, Joseph C. Blankinship, Ben Bond-Lamberty, Corey Lawrence, Julie Loisel, Avni Malhotra, Robert B. Jackson, Stephen M. Ogle, Claire Phillips, Rebecca Ryals, Katherine Todd-Brown, Rodrigo Vargas, Sintana E. Vergara, M. Francesca Cotrufo, Marco Keiluweit, Katherine Heckman, Susan E. Crow, Whendee L. Silver, Marcia DeLonge, Lucas E. Nave
Was this page helpful?