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Thursday, September 28, 2017

U.S. Coal Resources and Reserves Assessment

USGS Publication: 2017-3067
The U.S. Coal Resources and Reserves Assessment Project, as part of the U.S. Geological Survey (USGS) Energy Resources Program, conducts systematic, geology-based, regional assessments of significant coal beds in major coal basins in the United States...

Friday, March 11, 2016

GIS representation of coal-bearing areas in Antarctica

USGS Publication: Open-File Report 2016-1031

Understanding the distribution of coal-bearing geologic units in Antarctica provides information that can be used in sedimentary, geomorphological, paleontological, and climatological studies. This report is a digital compilation of information on Antarctica’s coal-bearing geologic units found in the literature. It is intended to be used in small-scale spatial geographic information system (GIS) investigations and as a visual aid in the discussion of Antarctica’s coal resources or in other coal-based geologic investigations...


Tuesday, December 22, 2015

The U.S. Geological Survey coal quality (COALQUAL) database version 3.0

USGS Publication: Data Series 975

Since the mid-1970s, the U.S. Geological Survey (USGS) has maintained a coal quality database of national scope named USCHEM, which currently contains data for over 13,000 samples. A subset of the USCHEM database called COALQUAL Version 1.3 was initially published in 1994 and was followed by Version 2.0 in 1997...


Tuesday, May 12, 2015

Coal Geology and Assessment of Coal Resources and Reserves in the Powder River Basin, Wyoming and Montana

USGS Publication: Professional Paper 1809
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...


Tuesday, May 12, 2015

Geospatial data for coal beds in the Powder River Basin, Wyoming and Montana

USGS Publication: Data Series 912
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...


Tuesday, May 12, 2015

USGS Powder River Basin Coal Assessment Features an Estimate of the Reserve Base

USGS Technical Release
The latest coal resource assessment of the Powder River Basin showcases the newly revised USGS’ assessment methodology, which, for the first time, includes an estimate of the reserve base for the entire basin.


Wednesday, March 25, 2015

Appalachian Basin Energy Resources -- A New Look at an Old Basin

USGS Technical Release & Publication
Appalachian coal and petroleum resources are still available in sufficient quantities to contribute significantly to fulfilling the nation’s energy needs, according to a recent study by the USGS.


Thursday, March 19, 2015

Coal and Petroleum Resources in the Appalachian Basin: Distribution, Geologic Framework, and Geochemical Character

USGS Publication: Professional Paper 1708
Fossil fuels from the Appalachian basin region have been major contributors to the Nation’s energy supplies over much of the last three centuries. Appalachian coal and petroleum resources are still available in sufficient quantities to contribute significantly to fulfilling the Nation’s energy needs. Although both conventional oil and gas continue to be produced in the Appalachian basin, most new wells in the region are drilled in shale reservoirs to produce natural gas...


Friday, December 19, 2014

Modeling uncertainty in coal resource assessments, with an application to a central area of the Gillette coal field, Wyoming

USGS Publication: SIR 2014-5196
Standards for the public disclosure of mineral resources and reserves do not require the use of any specific methodology when it comes to estimating the reliability of the resources. Unbeknownst to most intended recipients of resource appraisals, such freedom commonly results in subjective opinions or estimations based on suboptimal approaches, such as use of distance...


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Page Last Modified: Wednesday, December 03, 2014