Publications
Here you will find publications, reports and articles produced by geology, energy, and mineral scientists. For a comprehensive listing of all USGS publications, click the button below.
Filter Total Items: 1350
Preliminary integrated geologic map databases for the United States: Digital data for the geology of Wrangell-Saint Elias National Park and Preserve, Alaska Preliminary integrated geologic map databases for the United States: Digital data for the geology of Wrangell-Saint Elias National Park and Preserve, Alaska
No abstract available.
Authors
Frederic H. Wilson, Keith A. Labay, Nora B. Shew, Cindi C. Preller, Solmaz Mohadjer, Donald H. Richter
Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map of the Yukon-Koyukuk basin, Alaska Preliminary integrated geologic map databases for the United States: Digital data for the reconnaissance geologic map of the Yukon-Koyukuk basin, Alaska
No abstract available.
Authors
Frederic H. Wilson, Keith A. Labay, Nora B. Shew, Solmaz Mohadjer, W. W. Patton
The Togiak-Tikchik complex of southwestern Alaska, a replacement for the Gemuk Group: Stratigraphic nomenclature that has outlived its time The Togiak-Tikchik complex of southwestern Alaska, a replacement for the Gemuk Group: Stratigraphic nomenclature that has outlived its time
During early exploratory reconnaissance of southwestern Alaska in the 1940s and 1950s, the term "Gemuk Group" was used to name a varied assemblage of sedimentary and volcanic rocks in southwestern Alaska. Throughout the 1950s and early 1960s, the name was broadly applied in the region; yet by the end of the 1960s, it was no longer in use, and later maps assigned the rocks originally in...
Authors
Frederic H. Wilson, W. L. Coonrad
Alaska resource data file: Port Alexander quadrangle, Alaska Alaska resource data file: Port Alexander quadrangle, Alaska
No abstract available.
Authors
Donald J. Grybeck
Planning exploration under cover Planning exploration under cover
No abstract available.
Authors
Donald A. Singer
Alaska resource data file: Sitka quadrangle, Alaska Alaska resource data file: Sitka quadrangle, Alaska
No abstract available.
Authors
Henry C. Berg, Donald J. Grybeck
Alaska resource data file: Seward quadrangle, Alaska Alaska resource data file: Seward quadrangle, Alaska
No abstract available.
Authors
Jeff A. Huber, Carol S. Huber
Alaska resource data file: Sumdum quadrangle, Alaska Alaska resource data file: Sumdum quadrangle, Alaska
No abstract available.
Authors
Donald J. Grybeck
Statistical guides to estimating the number of undiscovered mineral deposits: an example with porphyry copper deposits Statistical guides to estimating the number of undiscovered mineral deposits: an example with porphyry copper deposits
Estimating numbers of undiscovered mineral deposits is a fundamental part of assessing mineral resources. Some statistical tools can act as guides to low variance, unbiased estimates of the number of deposits. The primary guide is that the estimates must be consistent with the grade and tonnage models. Another statistical guide is the deposit density (i.e., the number of deposits per...
Authors
Donald A. Singer, W. D. Menzie
Alaska resource data file: Naknek quadrangle Alaska resource data file: Naknek quadrangle
No abstract available.
Authors
Frederic H. Wilson, Stan E. Church, Damon P. Bickerstaff
Alaska resource data file: Melozitna quadrangle Alaska resource data file: Melozitna quadrangle
No abstract available.
Authors
David J. Szumigala, Garth E. Graham
Porphyry copper deposit density Porphyry copper deposit density
Estimating numbers of undiscovered mineral deposits has been a source of unease among economic geologists yet is a fundamental task in considering future supplies of resources. Estimates can be based on frequencies of deposits per unit of permissive area in control areas around the world in the same way that grade and tonnage frequencies are models of sizes and qualities of undiscovered...
Authors
Donald A. Singer, Vladimir Berger, W. David Menzie, Byron R. Berger