Heather A Lowers
Heather Lowers is a Research Geologist with the Geology, Geophysics, and Geochemistry Science Center.
Science and Products
Filter Total Items: 32
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Filter Total Items: 109
Europium-rich dark monazite - a potential new ore mineral for Alaska, USA? Europium-rich dark monazite - a potential new ore mineral for Alaska, USA?
No abstract available.
Authors
Richard B. Tripp, William Benzel, David T. Adams, Heather A. Lowers, Gregory K. Lee, Elizabeth A. Bailey
Particle Size Characterization of Water-Elutriated Libby Amphibole 2000 and RTI International Amosite Particle Size Characterization of Water-Elutriated Libby Amphibole 2000 and RTI International Amosite
This report presents data on particle characterization analyzed by scanning electron microscopy on Libby amphibole collected by the U.S. Geological Survey in 2000 (LA2000) and amosite material collected by RTI International (RTI amosite). The particle characterization data were generated to support a portion of the Libby Action Plan. Prior to analysis, the raw LA2000 and RTI amosite...
Authors
Heather Lowers, Amy M. Bern
The Iron Hill (Powderhorn) carbonatite complex, Gunnison County, Colorado — A potential source of several uncommon mineral resources The Iron Hill (Powderhorn) carbonatite complex, Gunnison County, Colorado — A potential source of several uncommon mineral resources
A similar version of this slide show was presented on three occasions during 2008: two times to local chapters of the Society for Mining, Metallurgy, and Exploration (SME), as part of SME's Henry Krumb lecture series, and the third time at the Northwest Mining Association's 114th Annual Meeting, held December 1-5, 2008, in Sparks (Reno), Nevada. In 2006, the U.S. Geological Survey (USGS)
Authors
Bradley S. Van Gosen
Materials characterization of dusts generated by the collapse of the World Trade Center Materials characterization of dusts generated by the collapse of the World Trade Center
The major inorganic components of the dusts generated from the collapse of the World Trade Center buildings on September 11, 2001 were concrete materials, gypsum, and man-made vitreous fibers. These components were likely derived from lightweight Portland cement concrete floors, gypsum wallboard, and spray-on fireproofing and ceiling tiles, respectively. All of the 36 samples collected...
Authors
Gregory P. Meeker, Stephen J. Sutley, Isabelle Brownfield, Heather Lowers, Amy M. Bern, Gregg A. Swayze, Todd M. Hoefen, Geoffrey S. Plumlee, Roger N. Clark, Carol A. Gent
Method development for analysis of urban dust using scanning electron microscopy with energy dispersive x-ray spectrometry to detect the possible presence of world trade center dust constituents Method development for analysis of urban dust using scanning electron microscopy with energy dispersive x-ray spectrometry to detect the possible presence of world trade center dust constituents
The collapse of the World Trade Center Towers on September 11, 2001, sent dust and debris across much of Manhattan and in the surrounding areas. Indoor and outdoor dust samples were collected and characterized by U.S. Geological Survey (USGS) scientists using scanning electron microscopy with energy-dispersive spectrometry (SEM/EDS). From this characterization, the U.S. Environmental...
Authors
A.M. Bern, H.A. Lowers, G.P. Meeker, J.A. Rosati
Mapping potentialy asbestos-bearing rocks using imaging spectroscopy Mapping potentialy asbestos-bearing rocks using imaging spectroscopy
Rock and soil that may contain naturally occurring asbestos (NOA), a known human carcinogen, were mapped in the Sierra Nevada, California, using the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) to determine if these materials could be uniquely identified with spectroscopy. Such information can be used to prepare or refine maps of areas that may contain minerals that can be...
Authors
G.A. Swayze, R.F. Kokaly, C.T. Higgins, J.P. Clinkenbeard, R. N. Clark, H.A. Lowers, S. J. Sutley
Science and Products
Filter Total Items: 32
No Result Found
Filter Total Items: 109
Europium-rich dark monazite - a potential new ore mineral for Alaska, USA? Europium-rich dark monazite - a potential new ore mineral for Alaska, USA?
No abstract available.
Authors
Richard B. Tripp, William Benzel, David T. Adams, Heather A. Lowers, Gregory K. Lee, Elizabeth A. Bailey
Particle Size Characterization of Water-Elutriated Libby Amphibole 2000 and RTI International Amosite Particle Size Characterization of Water-Elutriated Libby Amphibole 2000 and RTI International Amosite
This report presents data on particle characterization analyzed by scanning electron microscopy on Libby amphibole collected by the U.S. Geological Survey in 2000 (LA2000) and amosite material collected by RTI International (RTI amosite). The particle characterization data were generated to support a portion of the Libby Action Plan. Prior to analysis, the raw LA2000 and RTI amosite...
Authors
Heather Lowers, Amy M. Bern
The Iron Hill (Powderhorn) carbonatite complex, Gunnison County, Colorado — A potential source of several uncommon mineral resources The Iron Hill (Powderhorn) carbonatite complex, Gunnison County, Colorado — A potential source of several uncommon mineral resources
A similar version of this slide show was presented on three occasions during 2008: two times to local chapters of the Society for Mining, Metallurgy, and Exploration (SME), as part of SME's Henry Krumb lecture series, and the third time at the Northwest Mining Association's 114th Annual Meeting, held December 1-5, 2008, in Sparks (Reno), Nevada. In 2006, the U.S. Geological Survey (USGS)
Authors
Bradley S. Van Gosen
Materials characterization of dusts generated by the collapse of the World Trade Center Materials characterization of dusts generated by the collapse of the World Trade Center
The major inorganic components of the dusts generated from the collapse of the World Trade Center buildings on September 11, 2001 were concrete materials, gypsum, and man-made vitreous fibers. These components were likely derived from lightweight Portland cement concrete floors, gypsum wallboard, and spray-on fireproofing and ceiling tiles, respectively. All of the 36 samples collected...
Authors
Gregory P. Meeker, Stephen J. Sutley, Isabelle Brownfield, Heather Lowers, Amy M. Bern, Gregg A. Swayze, Todd M. Hoefen, Geoffrey S. Plumlee, Roger N. Clark, Carol A. Gent
Method development for analysis of urban dust using scanning electron microscopy with energy dispersive x-ray spectrometry to detect the possible presence of world trade center dust constituents Method development for analysis of urban dust using scanning electron microscopy with energy dispersive x-ray spectrometry to detect the possible presence of world trade center dust constituents
The collapse of the World Trade Center Towers on September 11, 2001, sent dust and debris across much of Manhattan and in the surrounding areas. Indoor and outdoor dust samples were collected and characterized by U.S. Geological Survey (USGS) scientists using scanning electron microscopy with energy-dispersive spectrometry (SEM/EDS). From this characterization, the U.S. Environmental...
Authors
A.M. Bern, H.A. Lowers, G.P. Meeker, J.A. Rosati
Mapping potentialy asbestos-bearing rocks using imaging spectroscopy Mapping potentialy asbestos-bearing rocks using imaging spectroscopy
Rock and soil that may contain naturally occurring asbestos (NOA), a known human carcinogen, were mapped in the Sierra Nevada, California, using the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) to determine if these materials could be uniquely identified with spectroscopy. Such information can be used to prepare or refine maps of areas that may contain minerals that can be...
Authors
G.A. Swayze, R.F. Kokaly, C.T. Higgins, J.P. Clinkenbeard, R. N. Clark, H.A. Lowers, S. J. Sutley