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Summary of U.S. Geological Survey investigations and hydrologic conditions in southwest Florida for 1979
H.C. Rollins
1981, Open-File Report 81-78
This report summarizes the hydrologic setting and the water-resources investigations in the Southwest Florida Water management District performed by the U.S. Geological Survey, Water Resources Division, for fiscal year 1979. Hydrologic conditions in southwest Florida are described and illustrated by hydrographs of selected surface-water, ground-water, and lake-stage data-collection sites. In...
Time-of-travel study in the Sebasticook River basin, Maine
Gene W. Parker
1981, Open-File Report 81-545
Time of travel was determined for four reaches of the Sebasticook River, two on the East Branch Sebasticook River, and two on the main stem of the Sebasticook River. Reach A included 7.8 miles of the East Branch Sebasticook River from Dexter to Corinna, Maine. Reach B included 8 miles...
Earthquake prediction research in Taiwan
Charles G. Sammis, T.C. Lee
1981, Open-File Report 81-261
This report summarizes work under U.S.G.S. Contract #14-08-0001-16895. The purpose of this contract was to provide equipment to Taiwan to assist that country in establishing a program in earthquake prediction and hazards studies. Also, expert assistance was provided for Taiwan's establishment of a routine field program using the equipment....
An oilspill risk analysis for the Beaufort Sea, Alaska (proposed sale 71)outer continental shelf lease area
W.B. Samuels, Dorothy Hopkins, K.J. Lanfear
1981, Open-File Report 82-13
An oilspill risk analysis was conducted to determine the relative environmental hazards of developing oil in different regions of the Beaufort Sea, Alaska, (Proposed Sale 71) Outer Continental Shelf (OCS) lease area. The probability of spill occurrences, likely movement of oil slicks, and locations of resources vulnerable to spilled oil...
Mathematical model of gamma-ray spectrometry borehole logging for quantitative analysis
Ulrich Schimschal
1981, Open-File Report 81-402
A technique for analyzing gamma-ray spectral-logging data has been developed, in which a digital computer is used to calculate the effects of gamma-ray attentuation in a borehole environment. The computer model allows for the calculation of the effects of lithology, porosity, density, and the thickness of a horizontal layer of...
High-resolution seismic-reflection profiles from the Duxbury, Massachusetts, area
Kenneth F. Parolski
1981, Open-File Report 81-358
In August 1980, The U.S. Geological Survey conducted a seismic study (fig. 1) of the harbor and nearshore waters of Duxbury, Massachusetts, aboard the 38' research vessel R/V NEECHO. In all, 18.5 kilometers of high-resolution seismic profiles and sidescan-sonar data were obtained.The systems used included an 80-J minisparker and an...