Monitoring water-quality during pilot-dredging operations in the Willamette and Columbia Rivers, Oregon
Joseph F. Rinella, Stuart W. McKenzie
1978, Open-File Report 78-554
Water quality was monitored in the Willamette and Columbia Rivers during a pilot dredging operation on December 16, 1977. Monitoring included in-situ measurements of pH, temperature, dissolved oxygen, and conductivity in the Willamette and Columbia Rivers; analyses of dissolved ammonia, dissolved manganese, suspended-sediment concentration and particle size, loss on ignition,...
FORTRAN computer program for calculation of stress-intensity factors, stresses, and displacements associated with a fluid-pressurized fracture near the Earth's surface
David D. Pollard
1978, Open-File Report 78-160
Biostratigraphic guide to Upper Devonian and Mississippian rocks along the Wasatch Front and Cordilleran hingeline, Utah
Charles A. Sandberg, Raymond Gutschick
1978, Open-File Report 78-351
This paper provides a guide to measured sections of Upper Devonian (Famennian) and Mississippian (Kinderhookian, Osagean, and Meramecian) rocks visited on a three-day field trip between Provo, Utah, on the Wasatch Front and the Crawford Mountains in the Overthrust Belt along the Utah-Wyoming State line. The field trip, sponsored by...
Hydrogeologic maps of proposed flood detention area proposed by Southwest Florida Water Management District, Green Swamp area, Florida
A. T. Rutledge, Hayes F. Grubb
1978, Open-File Report 78-460
Information about the hydrogeology of that part of the Green Swamp area which has been designated by Southwest Florida Water Management District as the flood detention area is given on seven maps. The maps show (1) core-hole numbers, (2) sand thickness, (3) clay thickness, (4) clay vertical hydraulic conductivity, (5)...
Management of flood-plain vegetation, 1967 to 1972, San Carlos Indian Reservation, Arizona
D.M. Park, R. C. Culler, R. M. Turner
1978, Open-File Report 78-412
During 1967-71, 15,800 acres of flood-plain vegetation were cleared from a 26-mile reach of the Gila River valley and a 9-mile reach of the San Carlos River valley. Both areas are on the San Carlos Apache Indian Reservation, Arizona. The area cleared in the Gila River valley included the Gila...
Relation of Mercury, Uranium, and Lithium Deposits to the McDermitt Caldera Complex, Nevada-Oregon
James J. Rytuba, Richard K. Glanzman
1978, Open-File Report 78-926
The McDermitt caldera complex, located along the Nevada-Oregon border, is a Miocene collapse structure 45 kilometer in diameter. Large-volume rhyolitic and peralkaline ash-flow tuffs were erupted from 17.9 to 15.8 m.y. ago, leading to the formation of overlapping and nested calderas. Emplacement of rhyolitic ring domes, located primarily along the...
A computer program for borehole compensation of dual-detector density well logs
James Henry Scott
1978, Open-File Report 78-515
The computer program described in this report was developed for applying a borehole-rugosity and mudcake compensation algorithm to dual-density logs using the following information: the water level in the drill hole, hole diameter (from a caliper log if available, or the nominal drill diameter if not), and the two gamma-ray...
Stratigraphy of the Cache Formation (Pliocene and Pleistocene) in Clear Lake Basin, Lake County, California
Michael J. Rymer
1978, Open-File Report 78-924
Recent geologic mapping in the Clear Lake basin shows that the nonmarine Cache Formation can be subdivided into several members. New names are herein informally used for three distinct deposits called the B, L, and K members. The three members are geographically separate, except where the L member locally unconformably...
Marine geotechnical data for North Pacific sediments
Adrian F. Richards
1978, Open-File Report 78-231
Geotechnical data from the published and unpublished literature are compiled in SI units and tabulated in a standardized format. Eight data sets are presented from a geographic area approximately bounded by 5° and 32° north latitude and 120° and 170° west longitude. The data exist in machine-readable form in the...
A study of the October 12, 1877, Oregon earthquake
P.C. Thenhaus
1978, Open-File Report 78-234
No abstract available. ...
Map showing surface faults in the southeastern Houston metropolitan area, Texas
E.R. Verbeek, U. S. Clanton
1978, Open-File Report 78-797
No abstract available....
Results and interpretation of geophysical studies near the Picacho Fault, south-central Arizona
Leroy W. Pankratz, Hans D. Ackermann, Robert C. Jachens
1978, Open-File Report 78-1106
Earth fissuring attributed to ground-water withdrawal occurs throughout south-central Arizona. A large zone of active fissures is located near Picacho, Arizona on the eastern rim of a large subsidence bowl. The main fissure has been named the Picacho fault. During February and March 1977, approximately 6.5 km of seismic-refraction lines...
Ore controls at the Mahd adh Dhahab gold mine, Kingdom of Saudi Arabia
Ronald G. Worl
1978, Open-File Report 78-778
Mahd adh Dhahab is the largest of numerous ancient gold mines scattered through the Precambrian shield of Saudi Arabia and the only one with recent production. Free gold and silver, tellurides, pyrite, galena, sphalerite, and chalcopyrite are in and associated with quartz veins and quartz veinlet stockworks. Country rocks consist...
A bibliography of the effects of off-road vehicles on the environment
Robert H. Webb, Howard Gordon Wilshire
1978, Open-File Report 78-149
No abstract available. ...
Surface water records of Cook Inlet basin, Alaska, through September 1975
David R. Scully, Larry S. Leveen, Raymond S. George
1978, Open-File Report 78-498
This report summarizes records of streamflow and water temperature collected prior to October 1, 1975, in the Cook Inlet Basin of south-central Alaska. Streamflow records for gaging stations are tabulated as monthly and annual summaries and annual extremes. For those gaging stations at which continuous or daily water temperature records...
Distribution of organic carbon and petroleum source rock potential of Cretaceous and lower Tertiary carbonates, south Florida basin: Preliminary results
James George Palacas
1978, Open-File Report 78-140
Analyses of 134 core samples from the South Florida Basin show that the carbonates of Comanchean age are relatively richer in average organic carbon (0.41 percent) than those of Coahuilan age (0.28 percent), Gulfian age (0.18 percent) and Paleocene age (0.20 percent). They are also nearly twice as rich as...
Preliminary geologic map, index to geologic mapping, and annotated bibliography of the Hartford, Connecticut, New York, New Jersey, Massachusetts 2° sheet
Maurice Henry Pease
1978, Open-File Report 78-513
No abstract available....
Mallets Creek Marsh, Lake Champlain: A plant-nutrient study
John T. Turk
1978, Open-File Report 78-462
Nitrogen and phosphorus dissolved in the interstitial water of Mallets Creek Marsh sediments supply about 42 percent of the nitrogen and about 9 percent of the phosphorus used by rooted macrophytes within the marsh. These percentages may become larger during middle and late summer, when water inflow to the marsh...
Reconnaissance engineering geology of the Petersburg area, southeastern Alaska, with emphasis on geologic hazards
Lynn A. Yehle
1978, Open-File Report 78-675
A program to study the engineering geology of most larger Alaska coastal communities and to evaluate their earthquake and other geologic hazards was started following the 1964 Alaska earthquake; this report about the Petersburg area is a product of that program. Field-study methods were of a reconnaissance nature, and thus,...
Mineral exploration, Mahd adh Dhahab District, Kingdom of Saudi Arabia
Ronald G. Worl
1978, Open-File Report 78-1073
Mahd adh Dhahab is the largest of numerous ancient gold mines scattered through the Precambrian shield of Saudi Arabia and the only one with recent production. During the period 1939-54, 765,768 fine ounces of gold and 1,002,029 ounces of silver were produced from the mines by the Saudi Arabian Mining...
Disseminated tin occurrence near Coal Creek, Talkeetna Mountains D-6 quadrangle, Alaska
Bruce L. Reed
1978, Open-File Report 78-77
No abstract available....
Uranium in sedimentary rocks, with emphasis on facies control in sandstone-type deposits
Christine E. Turner-Peterson, Fred Peterson
1978, Open-File Report 78-359
Hydrologic data for water-table aquifers in the Boulder-Fort Collins-Greeley area, Front Range urban corridor, Colorado
Paul A. Schneider, Donald E. Hillier
1978, Open-File Report 78-567
As part of the U.S. Geological Survey 's investigations of the hydrology and geology in the Front Range Urban Corridor of Colorado, hydrologic data relating to water-table aquifers were compiled during 1976-77. These data consisting of records of 446 wells and chemical analyses of water from 208 wells in the...
Use and interpretation of strong-motion records from highway bridges
J.D. Raggett, Christopher Rojahn
1978, Open-File Report 78-707
This report describes how strong-motion records obtained from the earthquake-induced motions of highway bridges may be analyzed for use in the evaluation of bridge designs and bridge design procedures.This report is divided into five principal sections. The first section describes strong-motion instrumentation and strong-motion records. In the second section, a...
Core description, photographs, and core and x-ray analyses of portions of the Upper Cretaceous Mesaverde Group, Washakie Basin, Wyoming
Theodore F. Tyler
1978, Open-File Report 78-708
