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Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

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Mission Area Publications

We are focused on some of the most significant issues society faces, and our science is making a substantial contribution to the well-being of the Nation and the world. Learn more about the major topics our research covers and the programs focused on those topics.

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Filter Total Items: 74184

Nitrogen and phosphorus balance of grass carp, Ctenopharyngodon idella, fed elodea, Egeria denea

No abstract available.
Authors
J.G. Stanley
By
Ecosystems Mission Area, Eastern Ecological Science Center

North Carolina glacier: Evidence disputed

No abstract available.
Authors
John T. Hack, Wayne L. Newell

Notes on the culture of striped bass in tanks and small raceways

No abstract available.
Authors
K.O. Allen
By
Ecosystems Mission Area, Eastern Ecological Science Center

Observations on the jumping and escapement of white amur

No abstract available.
Authors
J.E. Ellis
By
Ecosystems Mission Area, Eastern Ecological Science Center

Observations on the terrestrial wing displays of breeding Willets

No abstract available.
Authors
M.A. Howe
By
Ecosystems Mission Area, Eastern Ecological Science Center

Obsidian hydration profile measurements using a nuclear reaction technique

AMBIENT water diffuses into the exposed surfaces of obsidian, forming a hydration layer which increases in thickness with time to a maximum depth of 20–40 µm (ref. 1), this layer being the basic foundation of obsidian dating2,3.
Authors
R.R. Lee, D.A. Leich, T.A. Tombrello, J.E. Ericson, I. Friedman

Oil spills in the Arctic Ocean: Extent of spreading and possibility of large-scale thermal effects

[No abstract available]
Authors
R.C. Ayers, H.O. Jahns, J.L. Glaeser, S. Martin, W. J. Campbell

Ophiolites and oceanic crust

OPHIOLITES consist of a pseudostratiform sequence, of harzburgite, tectonite, ultramafic and mafic cumulates sometimes including gabbro and quartz diorite (plagiogranite) intrusions, dolerite dyke swarms, pillow lava 1, and deep-sea sediments2-4. This assemblage occurs in all Phanerozoic mountain systems and is interpreted as fossil oceanic crust and uppermost mantle5-10. Outstanding problems incl
Authors
E.M. Moores, E.D. Jackson

Optical data processing and projected applications of the ERTS-1 imagery covering the 1973 Mississippi River Valley floods

Flooding along the Mississippi River and some of its tributaries was detected by the multispectral scanner (MSS) on the Earth Resources Technology Satellite (ERTS-1) on at least three orbits during the spring of 1973. The ERTS data provided the first opportunity for mapping the regional extent of flooding at the time of the imagery. Special optical data processing techniques were used to produce a
Authors
Morris Deutsch, Fred Ruggles
By
Earth Resources Observation and Science (EROS) Center

Optimal exploitation strategies for an animal population in a stochastic serially correlated environment

Optimal exploitation strategies were studied for an animal population in a stochastic, serially correlated environment. This is a general case and encompasses a number of important cases as simplifications. Data on the mallard (Anas platyrhynchos) were used to explore the exploitation strategies and test several hypotheses because relatively much is known concerning the life history and general
Authors
D.R. Anderson
By
Ecosystems Mission Area, Eastern Ecological Science Center

Osmium, ruthenium, iridium and uranium in silicates and chromite from the eastern Bushveld Complex, South Africa

Osmium, ruthenium, iridium and uranium contents were determined in eight ortho pyroxene, seven plagioclase, and three chromite mineral separates from the eastern Bushveld Complex. Neutron activation analysis was used to measure the platinum metals, and uranium was determined by a fission track technique. The platinum metals were found to be present within each minéral in the proportions Os:Ru:Ir =
Authors
R.h. Gijbels, Hugh T. Millard, G. A. Desborough, A.J. Bartel

Oxygen isotope activities and concentrations in aqueous salt solutions at elevated temperatures: Consequences for isotope geochemistry

Studies of the effect of dissolved salts on the oxygen isotope activity ratio of water have been extended to 275°C. Dehydrated salts were added to water of known isotope composition and the solutions were equilibrated with CO2 which was sampled for analysis. For comparison similar studies were made using pure water. Results on water nearly coincide with earlier calculations. Salt effects diminish
Authors
A.H. Truesdell