Publications
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Chronostratigraphic cross section of Cretaceous formations in western Montana, western Wyoming, eastern Utah, northeastern Arizona, and northwestern New Mexico, U.S.A.
The chronostratigraphic cross section presented herein is a contribution to the Western Interior Cretaceous (WIK) project of the Global Sedimentary Geology Program. It portrays the Cretaceous formations at 13 localities in a south-trending transect from northwestern Montana through western Wyoming, eastern Utah, and northeastern Arizona, to northwestern New Mexico. The localities are in the Rocky
Authors
E. Allen Merewether, Kevin C. McKinney
Geologic assessment of undiscovered oil and gas resources of the U.S. portion of the Michigan Basin
In 2004, the U.S. Geological Survey (USGS) completed an assessment of the undiscovered oil and gas potential of the U.S. portion of the Michigan Basin. For this assessment, the Michigan Basin includes most of the State of Michigan, as well as parts of Illinois, Indiana, Minnesota, Ohio, and Wisconsin. The assessment was based on the geologic elements of each of the six total petroleum systems defi
Authors
Christopher S. Swezey, Joseph R. Hatch, Daniel O. Hayba, John E. Repetski, Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Richard M. Pollastro, Christopher P. Anderson, Christopher J. Schenk, Joseph A. East, Phuong A. Le
Identifying multiple timescale rainfall controls on Mojave Desert ecohydrology using an integrated data and modeling approach for Larrea tridentata
The perennial shrub Larrea tridentata is widely successful in North American warm deserts but is also susceptible to climatic perturbations. Understanding its response to rainfall variability requires consideration of multiple timescales. We examine intra-annual to multi-year relationships using model simulations of soil moisture and vegetation growth over 50 years in the Mojave National Preserve
Authors
Gene-Hua Crystal Ng, David R. Bedford, David M. Miller
1000 dams down and counting
Forty years ago, the demolition of large dams was mostly fiction, notably plotted in Edward Abbey's novel The Monkey Wrench Gang. Its 1975 publication roughly coincided with the end of large-dam construction in the United States. Since then, dams have been taken down in increasing numbers as they have filled with sediment, become unsafe or inefficient, or otherwise outlived their usefulness (1) (s
Authors
James E. O'Connor, Jeff J. Duda, Gordon E. Grant
By
Ecosystems Mission Area, Energy and Minerals Mission Area, Natural Hazards Mission Area, Energy Resources Program, Groundwater and Streamflow Information Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Volcano Hazards Program, Geology, Minerals, Energy, and Geophysics Science Center, John Wesley Powell Center for Analysis and Synthesis, Volcano Science Center, Western Fisheries Research Center
Trace elements in coal ash
Coal ash is a residual waste product primarily produced by coal combustion for electric power generation. Coal ash includes fly ash, bottom ash, and flue-gas desulfurization products (at powerplants equipped with flue-gas desulfurization systems). Fly ash, the most common form of coal ash, is used in a range of products, especially construction materials. A new Environmental Protection Agency ruli
Authors
Amrika Deonarine, Allan Kolker, Michael W. Doughten
Geospatial data for coal beds in the Powder River Basin, Wyoming and Montana
The purpose of this report is to provide geospatial data for various layers and themes in a Geographic Information System (GIS) format for the Powder River Basin, Wyoming and Montana. In 2015, as part of the U.S. Coal Resources and Reserves Assessment Project, the U.S. Geological Survey (USGS) completed an assessment of coal resources and reserves within the Powder River Basin, Wyoming and Montana
Authors
Scott A. Kinney, David C. Scott, Lee M. Osmonson, James A. Luppens
Coal geology and assessment of coal resources and reserves in the Powder River Basin, Wyoming and Montana
This report presents the final results of the first assessment of both coal resources and reserves for all significant coal beds in the entire Powder River Basin, northeastern Wyoming and southeastern Montana. The basin covers about 19,500 square miles, exclusive of the part of the basin within the Crow and Northern Cheyenne Indian Reservations in Montana. The Powder River Basin, which contains th
Authors
James A. Luppens, David C. Scott, Jon Haacke, Lee M. Osmonson, Paul E. Pierce
Geochemical and mineralogical sampling of the Devonian shales in the Broadtop synclinorium, Appalachian basin, in Virginia, West Virginia, Maryland, and Pennsylvania
Reconnaissance field mapping and outcrop sampling for geochemical and mineralogical analyses indicate that the Middle Devonian Marcellus Shale in the Broadtop synclinorium and nearby areas from southeastern West Virginia to south-central Pennsylvania has an organic content sufficiently high and a thermal maturity sufficiently moderate to be considered for a shale gas play. The organic matter-rich
Authors
Catherine B. Enomoto, James L. Coleman, Christopher S. Swezey, Patrick W. Niemeyer, Frank T. Dulong
Indian National Gas Hydrate Program Expedition 01 report
Gas hydrate is a naturally occurring “ice-like” combination of natural gas and water that has the potential to serve as an immense resource of natural gas from the world’s oceans and polar regions. However, gas-hydrate recovery is both a scientific and a technical challenge and much remains to be learned about the geologic, engineering, and economic factors controlling the ultimate energy resource
Authors
Timothy S. Collett, M. Riedel, R. Boswell, J. Presley, P. Kumar, A. Sathe, A. Sethi, M.V. Lall
Size distribution of rare earth elements in coal ash
Rare earth elements (REEs) are utilized in various applications that are vital to the automotive, petrochemical, medical, and information technology industries. As world demand for REEs increases, critical shortages are expected. Due to the retention of REEs during coal combustion, coal fly ash is increasingly considered a potential resource. Previous studies have demonstrated that coal fly ash is
Authors
Clint Scott, Amrika Deonarine, Allan Kolker, Monique Adams, James F. Holland
Comparing activated alumina with indigenous laterite and bauxite as potential sorbents for removing fluoride from drinking water in Ghana
Fluoride is considered beneficial to teeth and bones when consumed in low concentrations, but at elevated concentrations it can cause dental and skeletal fluorosis. Most fluoride-related health problems occur in poor, rural communities of the developing world where groundwater fluoride concentrations are high and the primary sources of drinking water are from community hand-pump borehole drilled w
Authors
Laura Craig, Lisa L. Stillings, David L. Decker, James M. Thomas
Introduction to special section: China shale gas and shale oil plays
In the last 10 years, the success of shale gas and shale oil productions as a result of technological advances in horizontal drilling, hydraulic fracturing and nanoscale reservoir characterization have revolutionized the energy landscape in the United States. Resource assessment by the China Ministry of Land and Resources in 2010 and 2012 and by the U.S. Energy Information Administration in 2011 a
Authors
Shu Jiang, Hongliu Zeng, Jinchuan Zhang, Neil Fishman, Baojun Bai, Xianming Xiao, Tongwei Zhang, Geoffrey S. Ellis, Xinjing Li, Bryony Richards-McClung, Dongsheng Cai, Yongsheng Ma