Technique for concentrating nannoplankton from the Tertiary rocks of the California Coast and Peninsular Ranges
No abstract available.
Journal of Research of the U.S. Geological Survey↗
subject
Journal of Research of the U.S. Geological Survey
Journal of Research of the U.S. Geological Survey: explore 3 source-linked works published from 1974 to 1977, with original documents and citations.
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Includes records with this source-supplied label or an explicit phrase match in their metadata. Matches indicate a mention, not proof that a paper uses a method or tests a material. Source versions are consolidated by DOI.
Sources: usgs. Collection updated 2026-09-20. Counts describe this index, not the complete source archives.
Solute transport and modeling of water quality in a small stream
An injection of chloride, sodium, and stable strontium was made at a constant rate for 3 hours into Uvas Creek, Santa Clara County, Calif., to determine the mass transport processes in a small stream. Five observation points were selected within a 610-metre reach of the stream below the injection site. Water samples were collected at the observation points during and immediately after the injection. A mathematical model of the stream was obtained by solving analytically and optimally the one-dimensional mass transport equation of the solutes in the stream. Comparison of field results with a simplified mathematical model indicates the dominance of convection in the behavior of sodium and chloride. The concentration of chloride and sodium can be closely simulated by the model. However, strontium cannot be well represented by the simplified model, which contains a first-order decay-type sink.
California↗
Aerial observations of suspended sediment plumes in San Francisco Bay and the adjacent Pacific Ocean
No abstract avaiable
Journal of Research of the U.S. Geological Survey↗