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GEOS seismograms for aftershocks of the earthquakes of December 7, 1988, near Spitak, Armenia SSR, during the time period 30 December 1988 14:00 through 2 January 1989 (UTC): Chapter D in Results and data from seismologic and geologic studies following earthquakes of December 7, 1988, near Spitak, Armenia SSR (Open-File Report 89-163)
R. D. Borcherdt, editor(s)
1989, Open-File Report 89-163-D
The earthquakes of December 7, 1988, near Spitak, Armenia SSR, serve as another grim reminder of the serious hazard that earthquakes pose throughout the world. We extend our heartfelt sympathies to the families of the earthquake victims and intend that our cooperative scientific endeavours will help reduce losses in future...
Indexes of hydrologic data from selected coal-mining areas in northwestern Colorado
N. G. Gaggiani
1989, Open-File Report 88-347
Currently (1988), data from hydrologic studies related to coal mining that have been done in northwestern Colorado since the early 1970 's are stored in the files of private companies and government offices and in various computer systems. To compile these data for additional research, a trip to each office...
Ground-water-quality assessment of the Carson River basin, Nevada and California: Analysis of available water-quality data through 1987
A. H. Welch, R. W. Plume, E. A. Frick, J. L. Hughes
1989, Open-File Report 89-382
Data on groundwater quality, hydrogeology, and land and water use for the Carson River basin, Nevada and California were analyzed as part of the U. S. Geological Survey National Water-Quality Assessment program. The basin consists of six hydrographic areas--a mountainous headwaters area and five downstream areas interconnected by the Carson...
Humic substances in the Suwannee River, Georgia; interactions, properties, and proposed structures
R. C. Averett, J.A. Leenheer, Diane M. McKnight, K. A. Thorn, editor(s)
1989, Open-File Report 87-557
Humic substances as a collective term and humic and fulvic acids as specific terms are not household words. For about a century, these terms belonged to the domain of the soil scientist. Even^though their chemical structures remained elusive, they were recognized as important entities in soil. During the past decade...