Seawater intrusion, south coast of Puerto Rico, 1966-77
Jose Raul Diaz
1979, Open-File Report 79-1334
A salinity reconnaissance of the south coast alluvial aquifer of Puerto Rico, including the areas of Guenica, Guayanilla-Yauco, Tallaboa, Juana Diaz, and Jobos was made during 1966-68. In this investigation seawater was detected in the Guayanilla-Yauco and Tallaboa areas.Since 1968, water level and quality-of-water data have been collected from selected...
Field verification of reconstructed dam-break flood, Laurel Run, Pennsylvania
Cheng-lung Chen, Jeffrey T. Armbruster
1979, Open-File Report 79-1483
A one-dimensional dam-break flood routing model is verified by using observed data on the flash flood resulting from the failure of Laurel Run Reservoir Dam near Johnstown, Pennsylvania. The model has been developed on the basis of an explicit scheme of the characteristics method with specified time intervals. The model...
Water-quality data for the Hanna and Carbon basins, Wyoming
Pamela B. Freudenthal
1979, Open-File Report 79-1277
Water-quality data for the Hanna and Carbon Basins, south-central Wyoming, are presented in tables with no interpretation. Common-constituent, trace-element, and radiochemical data for ground and surface water and sediment concentrations for surface water are included. Ground water at 53 sites and surface water at 3 gaging stations were sampled. (Kosco-USGS)...
Seismic, magnetic, and geotechnical properties of a landslide and clinker deposits, Powder River basin, Wyoming and Montana
C.H. Miller
1979, Open-File Report 79-952
Exploitation of vast coal and other resources in the Powder River Basin has caused recent, rapid increases in population and in commercial and residential development and has prompted land utilization studies. Two aspects of land utilization were studied for this report: (1) the seismic and geotechnical properties of a landslide...
Downhole pumps for water sampling in small diameter wells
F. C. Koopman
1979, Open-File Report 79-1264
The relatively high cost and difficulty in locating a source of pumps for use in obtaining ground-water samples from small-diameter wells has demonstrated a need for this report. Criteria for selection of a pump and pumping equipment to meet specific requirements has been tabulated to assist field personnel in making...
Preliminary geological interpretation and lithologic log of the exploratory geothermal test well (INEL-1), Idaho National Engineering Laboratory, eastern Snake River Plain, Idaho
David J. Doherty, Lisa Ann McBroome, Mel A. Kuntz
1979, Open-File Report 79-1248
A 10,365 ft (3,159 m) geothermal test well was drilled in the spring of 1979 at the Idaho National Engineering Laboratory, eastern Snake River Plain, Idaho: The majority of rock types encountered in the borehole are of volcanic origin. An upper section above 2,445 ft (745 m) consists of basaltic...
Geology and porphyry copper-type alteration-mineralization of igneous rocks at the Christmas Mine, Gila County, Arizona
Randolph A. Koski
1979, Open-File Report 79-844
The Christmas copper deposit, located in southern Gila County, Arizona, is part of the major porphyry copper province of southwestern North America. Although Christmas is known for skarn deposits in Paleozoic carbonate rocks, ore-grade porphyry-type copper mineralization also occurs in a composite granodioritic intrusive complex and adjacent mafic volcanic country...
Mineral resources of the Aravaipa Canyon Instant Study Area, Pinal and Graham Counties, Arizona
Medora Hooper Krieger, Maureen G. Johnson, Philip R. Bigsby
1979, Open-File Report 79-291
Drilling in sabkhahs of the Dhahran area, Kingdom of Saudi Arabia
Jeff L. Doebrich, Cole L. Smith
1979, Open-File Report 80-323
In situ bulk density and porosity estimates from borehole gravity data in limestones of the Madison Group; test well No. 1, Crook County, Wyoming
Bruce A. Kososki, Stephen L. Robbins
1979, Open-File Report 79-1514
In 1975 the U.S. Geological Survey, in cooperation with the Old West Regional Commission, prepared a plan of study (U.S. Geological Survey, 1975) for evaluating the water-supply potential of limestone of the Madison Group and associated rocks. To obtain better subsurface hydrologic and geologic information it was recognized that Madison...
Coal resource and coal quality of Pumpkin Creek EMRIA site, Powder River County, Montana: With a section on chemical analysis
Marguerite Glenn, Joseph R. Hatch, Ronald H. Affolter
1979, Open-File Report 79-589
The Pumpkin Creek EMRIA site, an area of about 94 square miles, is located mainly in the southwestern part of the Coalwood coal field on the slightly westward dipping beds of the Tongue River Member of the Paleocene Fort Union Formation in Powder River County, Montana.Three coal beds, A, Sawyer,...
Zeolite-clay mineral zonation of volcaniclastic sediments within the McDermitt caldera complex of Nevada and Oregon
Richard K. Glanzman, James J. Rytuba
1979, Open-File Report 79-1668
Volcaniclastic sediments deposited in the moat of the collapsed McDermitt caldera complex have been altered chiefly to zeolites and potassium feldspar. The original rhyolitic and peralkaline ash-flow tuffs are included in conglomerates at the caldera rims and grade into a lacustrine series near the center of the collapse. The tuffs...
Water-quality data from five Oregon stream basins
Timothy L. Miller
1979, Open-File Report 79-1535
The U.S. Geological Survey collected water-quality data in five Oregon stream basins during summer low-flow conditions in 1977 and 1978. During the two sampling periods, a total of 18 different sites were sampled. Several sites were sampled twice in 1977, and some sites were sampled in both 1977 and 1978....
Preliminary report on samples collected during lithium reconnaissance studies in Utah and Idaho
Richard K. Glanzman, Allen L. Meier
1979, Open-File Report 79-279
Key to the common marine molluscs of Texas
Gary W. Hill
1979, Open-File Report 79-969
A dichotomous key is developed which provides the investigator a means for identifying the common marine molluscs on the Texas coast. The key is written as to allow the user to stop or begin at any desired taxonomic level (class, order, superfamily, family, genus, species) depending on prior knowledge or...
Key to the Texas species of the superfamily Epitoniacea (Mollusca)
Gary W. Hill
1979, Open-File Report 79-298
Stratigraphy and paleoenvironment of Miocene phosphatic rocks in the East San Francisco Bay region, California
James M. Hill
1979, Open-File Report 79-1570
A stratigraphic study of the Monterey Group in the East San Francisco Bay Region, California, indicates that a depositional basin began to subside in early to middle Miocene time. The Miocene sea transgressed from the west or southwest, and the area subsided to a possible water depth of 500 to...
Ground-water quality in selected areas of Wisconsin
S. M. Hindall
1979, Open-File Report 79-1594
Analysis of 2,071 ground-water samples from 970 wells throughout Wisconsin indicate large variations in ground-water quality. Ground water in Wisconsin is generally suitable for most uses, but in some areas concentrations of chemical constituents exceed recommended drinking-water standards. Iron, manganese, and nitrate commonly exceed recommended drinking-water standards and dissolved solids,...
Quaternary stratigraphic sections with radiocarbon dates, Chandalar Quadrangle, Alaska
Thomas D. Hamilton
1979, Open-File Report 79-751
Surficial geologic mapping of the Chandalar quadrangle was carried out during 1975 and 1976 as part of the Arctic Environmental Program of the U.S. Geological Survey. Ten organic samples were collected at that time for radiocarbon dating. Six samples have been dated by Stephen W. Robinson at the U.S. Geological...
Geologic road log, Alyeska haul road, Alaska, June-August 1975
Thomas D. Hamilton
1979, Open-File Report 79-227
No abstract available....
Gravity and magnetic profiles, and rock property data for the Shaviovik and Echooka Rivers area, North Slope, Alaska
D.M. Giovannetti, Kenneth J. Bird
1979, Open-File Report 79-1504
Measured sections of the Montana Group and equivalent rocks from Montana and Wyoming
James R. Gill, Robert E. Burkholder
1979, Open-File Report 79-1143
Preliminary results of mineralogic and diagenetic studies of low-permeability sandstones of Late Cretaceous age, Piceance Creek basin, northwestern Colorado
Paula L. Hansley, Ronald C. Johnson
1979, Open-File Report 79-1702
Preliminary report on rank of deep coals in part of the southern Piceance Creek basin, Colorado
Val L. Freeman
1979, Open-File Report 79-725
A total intensity magnetic anomaly map of the Red Sea and its interpretation
Stuart A. Hall
1979, Open-File Report 80-131
All available total intensity magnetic field data have been used to prepare a total intensity magnetic anomaly map of the Red Sea at a scale of 1:2,000,000. These include airborne surveys at various elevations and numerous sea surveys. The data have been digitised at approximately one kilometre intervals and the...
