Publications
Products (journal articles, reports, fact sheets) authored by current and past scientists are listed below. Please check the USGS Pubs Warehouse for other USGS publications.
Filter Total Items: 2018
J is for jack J is for jack
The early days of drilling created a test of strength and endurance for miners.
Authors
W. H. Langer
I is for isinglass I is for isinglass
Once commonly used in coal and wood-burning stoves, U.S. production of mica has all but ceased.
Authors
W. H. Langer
Cassini spectra and photometry 0.25–5.1 μm of the small inner satellites of Saturn Cassini spectra and photometry 0.25–5.1 μm of the small inner satellites of Saturn
The nominal tour of the Cassini mission enabled the first spectra and solar phase curves of the small inner satellites of Saturn. We present spectra from the Visual Infrared Mapping Spectrometer (VIMS) and the Imaging Science Subsystem (ISS) that span the 0.25-5.1 ??m spectral range. The composition of Atlas, Pandora, Janus, Epimetheus, Calypso, and Telesto is primarily water ice, with a...
Authors
B. J. Buratti, J.M. Bauer, M.D. Hicks, J. A. Mosher, G. Filacchione, T. Momary, K. H. Baines, R. Brown, R. N. Clark, P. Nicholson
Carbon dioxide on the satellites of Saturn: Results from the Cassini VIMS investigation and revisions to the VIMS wavelength scale Carbon dioxide on the satellites of Saturn: Results from the Cassini VIMS investigation and revisions to the VIMS wavelength scale
Several of the icy satellites of Saturn show the spectroscopic signature of the asymmetric stretching mode of C-O in carbon dioxide (CO2) at or near the nominal solid-phase laboratory wavelength of 4.2675 ??m (2343.3 cm-1), discovered with the Visible-Infrared Mapping Spectrometer (VIMS) on the Cassini spacecraft. We report here on an analysis of the variation in wavelength and width of...
Authors
D. P. Cruikshank, A.W. Meyer, R. Brown, R. N. Clark, R. Jaumann, K. Stephan, C. A. Hibbitts, S.A. Sandford, R.M.E. Mastrapa, G. Filacchione, C.M.D. Ore, P. Nicholson, B. J. Buratti, T. B. McCord, R.M. Nelson, J.B. Dalton, K. H. Baines, D. L. Matson
Geology of the Selk crater region on Titan from Cassini VIMS observations Geology of the Selk crater region on Titan from Cassini VIMS observations
Observations of Titan obtained by the Cassini Visual and Infrared Mapping Spectrometer (VIMS) have revealed Selk crater, a geologically young, bright-rimmed, impact crater located ???800. km north-northwest of the Huygens landing site. The crater rim-crest diameter is ???90. km; its floor diameter is ???60. km. A central pit/peak, 20-30. km in diameter, is seen; the ratio of the size of...
Authors
J.M. Soderblom, R. Brown, L.A. Soderblom, J. W. Barnes, R. Jaumann, Stéphane Le Mouélic, Christophe Sotin, K. Stephan, K. H. Baines, B. J. Buratti, R. N. Clark, P. Nicholson
The architecture of the Cassini division The architecture of the Cassini division
The Cassini Division in Saturn's rings contains a series of eight named gaps, three of which contain dense ringlets. Observations of stellar occultations by the Visual and Infrared Mapping Spectrometer onboard the Cassini spacecraft have yielded 40 accurate and precise measurements of the radial position of the edges of all of these gaps and ringlets. These data reveal suggestive...
Authors
M.M. Hedman, P. Nicholson, K. H. Baines, B. J. Buratti, Christophe Sotin, R. N. Clark, R. Brown, R.G. French, E.A. Marouf
Saturn's icy satellites investigated by Cassini-VIMS. II. Results at the end of nominal mission Saturn's icy satellites investigated by Cassini-VIMS. II. Results at the end of nominal mission
We report the detailed analysis of the spectrophotometric properties of Saturn's icy satellites as derived by full-disk observations obtained by visual and infrared mapping spectrometer (VIMS) experiment aboard Cassini. In this paper, we have extended the coverage until the end of the Cassini's nominal mission (June 1st 2008), while a previous paper (Filacchione, G., and 28 colleagues...
Authors
G. Filacchione, F. Capaccioni, R. N. Clark, J.N. Cuzzi, D. P. Cruikshank, A. Coradini, P. Cerroni, P. Nicholson, T. B. McCord, R. Brown, B. J. Buratti, F. Tosi, R.M. Nelson, R. Jaumann, K. Stephan
G is for gnome G is for gnome
Possibly based on miners from Southeast Germany, ceramic gnomes feature the pointed red hat often worn by these miners.
Authors
W. H. Langer
F is for fuller's earth F is for fuller's earth
Before putting on a wool cardigan, make sure you know how the wool was cleaned.
Authors
W. H. Langer
E is for earth E is for earth
The planet's layers - particularly the earth's crust - provide many of life's essential building blocks.
Authors
W. H. Langer
D is for diamond D is for diamond
Real diamonds are a girl's best friend, but synthetic ones opened up a whole new world for granite.
Authors
W. H. Langer
C is for cactolith C is for cactolith
Geologic jargon - though handy for triple-word scores - should be used in moderation.
Authors
W. H. Langer