Exploration and hydrogeo

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The Southern Juan de Fuca Ridge: Hydrothermal Fluids, Sulfides, and Geophysical Studies

Published:
10 October 1987
The U.S. Geological Survey and several other institutions have been studying the southernmost segment of the Juan de Fuca Ridge for several years by almost every means available to marine geologists and geophysicists [e.g., Normark et al., this issue]. Hydrothermal vent areas along the ridge were located by camera tows, by the presence of sulfides in dredge samples, and by locating hydrothermal plumes by geophysical and geochemical tows

Geophysical Investigations of Radioactive Waste Disposal Sites in the Western United States

Published:
10 July 1987
A symposium on "Geophysical Investigations of Proposed Radioactive Waste Disposal Sites" was held at the Fall Meeting of the American Geophysical Union, December 13, 1982. Since then, five of the papers presented at the symposium have been published in the Journal of Geophysical Research and an additional six papers are included in this issue.

Results of the Salton Sea Scientific Drilling Project, California

Published:
10 November 1988
In March 1986 a research borehole, called the "State 2-14" reached a depth of 3.22 km in the Salton Sea geothermal system of southern California. This was part of the Salton Sea Scientific Drilling Project (SSSDP), the first major (i.e., multimillion dollar) research drilling project in the U.S. Continental Scientific Drilling Program.