Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

184785 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 5593, results 139801 - 139825

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Paleozoic and Mesozoic deformations in the central Sierra Nevada, California
Warren J. Nokleberg, Ronald Wayne Kistler
1980, Professional Paper 1145
Analysis of structural and stratigraphic data indicates that several periods of regional deformation, consisting of combined folding, faulting, cataclasis, and regional metamorphism, occurred throughout the central Sierra Nevada during Paleozoic and Mesozoic time. The oldest regional deformation occurred alono northward trends during the Devonian and Mississippian periods in most roof...
Geology of the middle Tertiary formations of Puerto Rico
Watson Hiner Monroe
1980, Professional Paper 953
Rocks of Oligocene and Miocene age crop out in both N and S Puerto Rico. They rest with angular unconformity on volcanic and related sedimentary and intrusive rocks that range in age from Early Cretaceous to M. Eocene. The older rocks crop out on the upland that extends E-W through...
Flood of April 13, 1980, Mobile, Alabama
Curtis H. Hannum, George H. Nelson Jr.
1980, Open-File Report 80-1183
This report presents a compilation of hydrologic data for the city of Mobile for the flood of April 13, 1980. These data consist of rainfall information, peak discharge determinations, discharge hydrographs for two U.S. Geological Survey gaging stations, peak water-surface elevations, and maps of the area affected by the flooding....
Directory of assistance centers of the National Water Data Exchange (NAWDEX)
Melvin D. Edwards
1980, Open-File Report 80-1193
The National Water Data Exchange (NAWDEX), managed by the U.S. Geological Survey, has established a network of Assistance Centers throughout the United States and Puerto Rico to assist users of water data in identifying and locating the data they need. This Directory provides the information needed to contact any of...
Operational guidelines for assistance centers of the National Water Data Exchange
Melvin D. Edwards, Gerald L. Thompson
1980, Open-File Report 80-1196
The National Water Data Exchange (NAWDES) is a nationwide program managed by the U.S. Geological Survey to assist users of water data and water-related data in identifying, locating, and acquiring needed data. NAWDEX services are available through a program office located in the Geological Survey 's National Center in Reston,...
Improved stress determination procedures by hydraulic fracturing: rock fracture extension in hydraulic fracturing for conditions where the principal stresses are inclined to the axis at the pressurized borehole
Yoshiaki Mizuta, Hideo Kobayashi
1980, Open-File Report 80-1171
Laboratory hydraulic fracturing tests using a straddle packer with inflatable rubber sealing elements were conducted to investigate the effects of varying borehole inclination with respect to the in-situ stress field and of varying pressurization flow rates.Experiments were carried out on relatively large specimens of competent, brittle and impermeable rock containing...