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Page 5703, results 142551 - 142575

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Relation of drainage problems to high ground-water levels, Coconut Grove area, Oahu, Hawaii
L.A. Swain, C.J. Huxel Jr.
1971, Open-File Report 72-365
Purpose and Scope In 1969, hydrologic data-collection sites were established in and around the Coconut Grove area for the purpose of measuring directly the relationship between rainfall, runoff, ground-water levels, the level of water in Kawainui Swamp and the canals, and tidal fluctuations. The primary objective was to identify the causes...
Application of borehole geophysics to water-resources investigations
W.S. Keys, L.M. MacCary
1971, Techniques of Water-Resources Investigations 02-E1
This manual is intended to be a guide for hydrologists using borehole geophysics in ground-water studies. The emphasis is on the application and interpretation of geophysical well logs, and not on the operation of a logger. It describes in detail those logging techniques that have been utilized within the Water...
Map showing locations of samples dated by radiocarbon methods in the San Francisco Bay region
Robert H. Wright
1971, Miscellaneous Field Studies Map 317
Radiocarbon dating is an important interdisciplinary tool for studies involving events and processes during the last 40,000 years of earth history, including studies involving marine transgressions and regressions, land subsidence, climatic changes, sedimentation rates and patterns, fault movements, and archaeology, among others. The potential value of a radiocarbon date is diminished,...
Channel movement of meandering Indiana streams
James F. Daniel
1971, Professional Paper 732-A
The process of channel movement in a meander system involves rotation and translation of meander loops and an increasing path length. The amount of path-length increase is directly proportional to the impulse supplied by discharge and is inversely proportional to the silt-clay percentage of the material composing the channel perimeter. Comparable...
Resistivity sections, upper Arkansas River basin, Colorado
Adel A. R. Zohdy, Lloyd A. Hershey, Philip A. Emery, William D. Stanley
1971, Open-File Report 71-337
A reconnaissance investigation of ground-water resources in the upper Arkansas River basin from Pueblo to Leadville is being made by the U.S. Geological Survey in cooperation with the Southeastern Colorado Water Conservancy District, and the Colorado Division of Water Resources, Colorado State Engineer. As part of the investigation, surface geophysical...