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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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Field feeding by Cygnus columbianus columbianus in Maryland Field feeding by Cygnus columbianus columbianus in Maryland
No abstract available.
Authors
R. E. Munro
Food habits of feral burros and desert bighorn sheep in Death Valley National Monument Food habits of feral burros and desert bighorn sheep in Death Valley National Monument
No abstract available at this time
Authors
T. Ginnett, C. L. Douglas
GC-MS analysis of 2H- and 15N- labeled analogues of N-nitroso-2(3',7'-dimethyl-2', 6'=octadienyl) aminoethlanoles in organic tissues GC-MS analysis of 2H- and 15N- labeled analogues of N-nitroso-2(3',7'-dimethyl-2', 6'=octadienyl) aminoethlanoles in organic tissues
Abstract not submitted to date
Authors
S. L. Abidi, A.L. Idelson
Gentle release of captive, parent-reared Mississippi sandhill cranes into the wild Gentle release of captive, parent-reared Mississippi sandhill cranes into the wild
No abstract available.
Authors
P.J. Zwank, S.R. Derrickson
Growth faulting and salt diapirism; their relationship and control in the Carolina Trough, eastern North America Growth faulting and salt diapirism; their relationship and control in the Carolina Trough, eastern North America
The Carolina Trough is a long, linear, continental margin basin off eastern North America. Salt domes along the trough's seaward side show evidence of active diapirism and a normal growth fault along its landward side has been continually active at least since the end of the Jurassic. This steep fault extends to a strong reflection event at about 11 km depth that may represent the top of...
Authors
William P. Dillon, Peter Popenoe, John A. Grow, Kim D. Klitgord, B. Ann Swift, Charles K. Paull, Katharine V. Cashman
Hormonal treatment and flight feather molt in immature Sandhill Cranes Hormonal treatment and flight feather molt in immature Sandhill Cranes
Molt, the production of a new generation of feathers, is a poorly understood physiological phenomenon in nondomestic birds. Often in large birds like geese, flight is restricted by clipping the primary remiges on 1 wing and flight is restored after the molt when the primaries are replaced. A similar technique would be desirable for use with cranes conditioned for release to the native...
Authors
G.F. Gee
Hydrates of natural gas in continental margins Hydrates of natural gas in continental margins
Natural gas hydrates in continental margin sediment can be inferred from the widespread occurrence of an anomalous seismic reflector which coincides with the predicted transition boundary at the base of the gas hydrate zone. Direct evidence of gas hydrates is provided by visual observations of sediments from the landward wall of the Mid-America Trench off Mexico and Guatemala, from the...
Authors
K.A. Kvenvolden, L.A. Barnard
Interactions between desert bighorn sheep and feral burros at spring areas in Death Valley National monument Interactions between desert bighorn sheep and feral burros at spring areas in Death Valley National monument
No abstract available at this time
Authors
W.C. Dunn, C. L. Douglas
Intraslope basins in Northwest Gulf of Mexico; a key to ancient submarine canyons and fans Intraslope basins in Northwest Gulf of Mexico; a key to ancient submarine canyons and fans
The hummocky, diapirically deformed Texas-Louisiana continental slope includes three major types of intraslope basins: blocked-canyon intraslope basin, interdomal basin, and collapse basin. Major sand bodies present in the blocked-canyon intraslope basins are used to determine the sedimentary history of the Tertiary and Quaternary of this area. During relative lowering of sea level...
Authors
A.H. Bouma