Spectroscopy Lab

Publications

Filter Total Items: 336
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Year Published: 2012

Spectroscopic remote sensing for material identification, vegetation characterization, and mapping

Identifying materials by measuring and analyzing their reflectance spectra has been an important procedure in analytical chemistry for decades. Airborne and space-based imaging spectrometers allow materials to be mapped across the landscape. With many existing airborne sensors and new satellite-borne sensors planned for the future, robust methods...

Lewis, Paul E.; Shen, Sylvia S.; Kokaly, Raymond F.

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Year Published: 2012

Preparation and characterization of "Libby Amphibole" toxicological testing material

The U.S. Environmental Protection Agency (USEPA) began work in Libby, Mont. in 1999 when an Emergency Response Team was sent to investigate local concern and media reports regarding asbestos-contaminated vermiculite. Since that time, the site has been granted Superfund status and site remediation to a safe level of asbestos has been ongoing. The...

Lowers, Heather; Wilson, Stephen A.; Hoefen, Todd M.; Benzel, William M.; Meeker, Gregory P.
Preparation and characterization of "Libby Amphibole" toxicological testing material; 2012; OFR; 2012-1012; Lowers, Heather A.; Wilson, Stephen A.; Hoefen, Todd M.; Benzel, William M.; Meeker, Gregory P.

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Year Published: 2012

Description and validation of an automated methodology for mapping mineralogy, vegetation, and hydrothermal alteration type from ASTER satellite imagery with examples from the San Juan Mountains, Colorado

The efficacy of airborne spectroscopic, or "hyperspectral," remote sensing for geoenvironmental watershed evaluations and deposit-scale mapping of exposed mineral deposits has been demonstrated. However, the acquisition, processing, and analysis of such airborne data at regional and national scales can be time and cost prohibitive. The Advanced...

Rockwell, Barnaby W.
Description and validation of an automated methodology for mapping mineralogy, vegetation, and hydrothermal alteration type from ASTER satellite imagery with examples from the San Juan Mountains, Colorado; 2012; SIM; 3190; Rockwell, Barnaby W.

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Year Published: 2012

Mapping argillic and advanced argillic alteration in volcanic rocks, quartzites, and quartz arenites in the western Richfield 1° x 2 ° quadrangle, southwestern Utah, using ASTER satellite data

The Richfield quadrangle in southwestern Utah is known to contain a variety of porphyry Mo, skarn, polymetallic replacement and vein, alunite, and kaolin resources associated with 27-32 Ma calc-alkaline or 12-23 Ma bimodal volcano-plutonic centers in Neoproterozoic to Mesozoic carbonate and siliciclastic rocks. Four scenes of visible to shortwave-...

Rockwell, Barnaby W.; Hofstra, Albert H.
Mapping argillic and advanced argillic alteration in volcanic rocks, quartzites, and quartz arenites in the western Richfield 1° x 2 ° quadrangle, southwestern Utah, using ASTER satellite data; 2012; OFR; 2012-1105; Rockwell, Barnaby W.; Hofstra, Albert H.

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Year Published: 2012

A newly discovered impact crater in Titan's Senkyo: Cassini VIMS observations and comparison with other impact features

Senkyo is an equatorial plain on Titan filled with dunes and surrounded by hummocky plateaus. During the Titan targeted flyby T61 on August 25, 2009, the Cassini Visual and Infrared Mapping Spectrometer (VIMS) onboard the Cassini spacecraft observed a circular feature, centered at 5.4° N and 341°W, that superimposes the dune...

Buratti, B.J.; Sotin, Christophe; Lawrence, K.; Brown, R. H.; Le, Mouelic S.; Soderblom, J.M.; Barnes, J.; Clark, Roger N.; Baines, K.H.; Nicholson, P.D.

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Year Published: 2012

Dissipation of Titans north polar cloud at northern spring equinox

Saturn's Moon Titan has a thick atmosphere with a meteorological cycle. We report on the evolution of the giant cloud system covering its north pole using observations acquired by the Visual and Infrared Mapping Spectrometer onboard the Cassini spacecraft. A radiative transfer model in spherical geometry shows that...

Le, Mouelic S.; Rannou, P.; Rodriguez, S.; Sotin, Christophe; Griffith, C.A.; Le, Corre L.; Barnes, J.W.; Brown, R. H.; Baines, K.H.; Buratti, B.J.; Clark, Roger N.; Nicholson, P.D.; Tobie, G.

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Year Published: 2012

The Saturnian satellite Rhea as seen by Cassini VIMS

Since the arrival of the Cassini spacecraft at Saturn in June 2004, the Visual and Infrared Mapping Spectrometer has obtained new spectral data of the icy satellites of Saturn in the spectral range from 0.35 to 5.2 μm. Numerous flybys were performed at Saturn’s second largest satellite Rhea, providing a nearly complete coverage with pixel-...

Stephan, K.; Jaumann, R.; Wagner, R.; Clark, Roger N.; Cruikshank, D. P.; Giese, B.; Hibbitts, C. A.; Roatsch, T.; Matz, K.-D.; Brown, R. H.; Filacchione, G.; Cappacioni, F.; Scholten, F.; Buratti, B.J.; Hansen, G. B.; Nicholson, P.D.; Baines, K.H.; Nelson, R.M.; Matson, D. L.

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Year Published: 2012

Titan's fluvial valleys: Morphology, distribution, and spectral properties

Titan's fluvial channels have been investigated based on data obtained by the Synthetic Aperture Radar (SAR) instrument and the Visible and Infrared Mapping Spectrometer (VIMS) onboard the Cassini spacecraft. In this paper, a database of fluvial features is created based on radar-SAR data aiming to unveil the distribution and the morphologic and...

Langhans, M.H.; Jaumann, R.; Stephan, K.; Brown, R. H.; Buratti, B.J.; Clark, Roger N.; Baines, K.H.; Nicholson, P.D.; Lorenz, R. D.; Soderblom, Laurence A.; Soderblom, J.M.; Sotin, Christophe; Barnes, J.W.; Nelson, R.

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Year Published: 2011

The dispersion of fibrous amphiboles by glacial processes in the area surrounding Libby, Montana, USA

Mining operations began at a world-class vermiculite deposit at Vermiculite Mountain near Libby, Montana, circa 1920 and ended in 1990. Fibrous and asbestiform amphiboles intergrown with vermiculite ore are suspected to be a causative factor in an abnormally high number of cases of respiratory diseases in former mine and mill workers, and in...

Langer, William H.; Van Gosen, Bradley S.; Meeker, Gregory P.; Adams, David T.; Hoefen, Todd M.
The dispersion of fibrous amphiboles by glacial processes in the area surrounding Libby, Montana, USA; 2011; Article; Journal; Environmental Earth Sciences; Langer, William H.; Van Gosen, Bradley S.; Meeker, Gregory P.; Adams, David T.; Hoefen, Todd M.

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Year Published: 2011

Simultaneous speciation of arsenic, selenium, and chromium: species, stability, sample preservation, and analysis of ash and soil leachates

An analytical method using high-performance liquid chromatography separation with inductively coupled plasma mass spectrometry (ICP-MS) detection previously developed for the determination of Cr(III) and Cr(VI) has been adapted to allow the determination of As(III), As(V), Se(IV), Se(VI), Cr(III), and Cr(VI) under the same chromatographic...

Wolf, Ruth E.; Morman, Suzette A.; Hageman, Philip L.; Hoefen, Todd M.; Plumlee, Geoffrey S.
Simultaneous speciation of arsenic, selenium, and chromium: species, stability, sample preservation, and analysis of ash and soil leachates; 2011; Article; Journal; Analytical and Bioanalytical Chemistry; Wolf, Ruth E.; Morman, Suzette A.; Hageman, Philip L.; Hoefen, Todd M.; Plumlee, Geoffrey S.

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Year Published: 2011

The Moon Mineralogy Mapper (M3) imaging spectrometer for lunar science: Instrument description, calibration, on‐orbit measurements, science data calibration and on‐orbit validation

The NASA Discovery Moon Mineralogy Mapper imaging spectrometer was selected to pursue a wide range of science objectives requiring measurement of composition at fine spatial scales over the full lunar surface. To pursue these objectives, a broad spectral range imaging spectrometer with high uniformity and high signal-to-noise ratio capable of...

C. Pieters; P. Mouroulis; M. Eastwood; J. Boardman; Green, R.O.; Glavich, T.; Isaacson, P.; Barr, D.; Annadurai, M.; Clark, R.; Cate, D.; Besse, S.; Chatterjee, A.; Cheek, L.; Combe, J.; Dhingra, D.; Essandoh, V.; Geier, S.; Goswami, J.N.; Green, R.; Haemmerle, V.; Head, J.; Hovland, L.; Hyman, S.; Klima, R.; Koch, T.; Kramer, G.; Kumar, A.S.K.; Lee, K. ; Lundeen, S.; Malaret, E.; McCord, T.; McLaughlin, S.; Mustard, J.; Nettles, J.; Petro, N.; Plourde, K.; Racho, C.; Rodriguez, J.; Runyon, C.; Sellar, G.; Smith, C.; Sobel, H.; Staid, M.; Sunshine, J.; Taylor, L.; Thaisen, K.; Tompkins, S.; Tseng, H.; Vane, G.; Varanasi, P.; White, M.; Wilson, D.

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Year Published: 2011

PRISM: Processing routines in IDL for spectroscopic measurements (installation manual and user's guide, version 1.0)

This report describes procedures for installing and using the U.S. Geological Survey Processing Routines in IDL for Spectroscopic Measurements (PRISM) software. PRISM provides a framework to conduct spectroscopic analysis of measurements made using laboratory, field, airborne, and space-based spectrometers. Using PRISM functions, the user can...

Kokaly, Raymond F.
PRISM: Processing routines in IDL for spectroscopic measurements (installation manual and user's guide, version 1.0); 2011; OFR; 2011-1155; Kokaly, Raymond F.