Ancient mines of the Farah Garan area, southwestern Saudi Arabia
C. W. Smith, H. Richard Blank
1979, Open-File Report 79-1659
Ancient miners, in quest of oxidized copper minerals, gold, silver, and possibly zinc, mined gossans to approximately 20 m depth in an area 1.1 by 0.5 km in extent at Farah Garan. The gossans, derived from sulfides, are ordinarily found at contacts between marble lenses and metavolcanic-metasedimentary rocks, but in...
Physical and chemical properties of San Francisco Bay waters, 1969-1976
Richard E. Smith, Raynol E. Herndon, Dana D. Harmon
1979, Open-File Report 79-511
Basic data on the physical and chemical properties of San Francisco Bay are presented here. Samples were collected over the period 1969-1976 at approximately six-week intervals at 36 stations. The stations were located along the axis of the Bay from Calaveras Point in South San Francisco Bay to the town...
A study of uranium favorability of Cenozoic sedimentary rocks, Basin and Range Province, Arizona: Part I. General geology and chronology of pre-late Miocene Cenozoic sedimentary rocks
Robert Bryan Scarborough, Jan Carol Wilt
1979, Open-File Report 79-1429
This study focuses attention on Cenozoic sedimentary rocks in the Basin and Range Province of Arizona. The known occurrences of uranium and anomalous radioactivity in these rocks are associated with sediments that accumulated in a low energy environment characterized by fine-grained clastics, including important tuffaceous materials, and carbonate rocks. Most...
Hydrology and water resources of the Shawsheen River basin, Massachusetts
Frederick B. Gay, David F. Delaney
1979, Open-File Report 79-344
Inventory of drilling activities of the U.S. Geological Survey in the United States, fiscal years 1979-1980
1979, Open-File Report 79-1567
No abstract available. ...
Annual peak discharges from small drainage areas in Montana through September 1978
R. J. Omang, C. Parrett, J. A. Hull
1979, Open-File Report 79-522
Annual peak stage and discharge data have been collected and tabulated for crest-stage gaging sites in Montana. The crest-stage program was begun in July 1955 to investigate the magnitude and frequency of floods from small drainage areas. The program has expanded from 45 crest-stage gaging stations initially to 173 stations...
Finksburg quadrangle, Maryland: Hydrogeology
J. F. Williams III
1979, Open-File Report 79-1536
Hydraulic data for Coosa River in vicinity of Lay Dam, Alabama
G. H. Nelson Jr.
1979, Open-File Report 79-1636
Evaluation of potential yield of water wells in bedrock aquifers, Fairfax County, Virginia-computer composite map
R.H. Johnston, J. N. Van Driel
1979, Open-File Report 79-525
The subsurface geology of the Florida-Hatteras shelf, slope, and inner Blake Plateau
Charles K. Paull, William P. Dillon
1979, Open-File Report 79-448
The structure and stratigraphy of the Florida-Hatteras Slope and inner Blake Plateau was studied by means of 4,780 km of single-channel air gun seismic reflection profiles. Control for the seismic stratigraphy is provided by correlating reflecting units and paleontologically dated stratigraphic units identified in offshore wells and dredge hauls. Many...
Prediction of vertical displacements in a subsiding elastic layer: a model for subsidence in karst terrains
William Z. Savage
1979, Open-File Report 79-1094
Uranium, thorium, and mercury distribution through the evolution of the McDermitt Caldera complex
James J. Rytuba, W.K. Conrad, Richard K. Glanzman
1979, Open-File Report 79-541
The McDermitt caldera complex developed over a period of 5 m.y. years during which ash-flow tuff sheets anomalous in mercury, uranium, and thorium were emplaced. The moat portions of the caldera complex were subsequently filled with tuffaceous sediments. Late in the caldera development near-surface intrusives and domes were emplaced along...
Reconnaissance of potential for potable ground-water supply at Kipahulu District, Haleakala National Park, Maui, Hawaii
Ronald L. Soroos
1979, Open-File Report 79-749
Kipahulu Valley drains an area of 12.7 square miles on the southeast side of the island of Maui, Hawaii. The aquifer underlying the lower reaches of the valley comprises recent lava flows. Fresh groundwater occurs in the aquifer as a thin basal lens, which discharges as diffuse seeps along the...
Major and trace element data with partition coefficients for lava flows from the San Francisco volcanic field
Karen J. Wenrich-Verbeek
1979, Open-File Report 79-998
Major and trace element data from San Francisco Mountain (a stratovolcano), as well as major element data from representative flows of the surrounding volcanic field (figure 1), are presented in this report. Also included are conventional and normalized partition coefficients for trace elements in each of the coexisting mineral phases...
A note on the simple Bouguer gravity field in the eastern Strait of Juan de Fuca, Washington
Byron D. Ruppel
1979, Open-File Report 79-1674
Geologic evaluation of major Landsat lineaments in Nevada and their relationship to ore districts
Lawrence C. Rowan, Pamela Heald Wetlaufer
1979, Open-File Report 79-544
Analysis of diverse geologic, geophysical, and geochemical data shows that eight major lineament systems delineated in Landsat images of Nevada are morphological and tonal expressions of substantially broader structural zones. Southern Nevada is dominated by the 175 km-wide northwest-trending Walker Lane, a 150 km-wide zone of east-trending lineament systems consisting...
A supplement to "Methods for collection and analysis of aquatic biological and microbiological samples" (U.S. Geological Survey Techniques of Water-Resources Investigations, Book 5, Chapter A4)
Phillip E. Greeson, editor(s)
1979, Open-File Report 79-1279
The manual contains methods used by the U.S. Geological Survey to collect, preserve, and analyze waters to determine their biological and microbiological properties. It supplements ' Methods for Collection and Analysis of Aquatic Biological and Microbiological Samples ' (TWRI, Book 5, Chapter A4, 1977, edited by P. E. Greeson, T....
Evaluation of Landsat multispectral scanner images for mapping altered rocks in the East Tintic Mountains, Utah
Lawrence C. Rowan, Michael J. Abrams
1979, Open-File Report 78-736
The East Tintic Mountains, Utah consist of folded and faulted Paleozoic sedimentary rocks, which are partly covered by Tertiary volcanic rocks. Clastic rocks dominate the lower one-third of the Paleozoic section, whereas carbonate rocks with subordinate amounts of shale and elastic rocks predominate in the remainder. Some of the rocks,...
Stratigraphy and sedimentation of the Torok, Kukpowruk, and Corwin formations of Cretaceous age in the Kokolik-Utukok River region, National Petroleum Reserve in Alaska
Henry W. Roehler, G. D. Stricker
1979, Open-File Report 79-995
Mineral map of the Bopolu Quadrangle, Liberia
W. L. Coonrad
1979, Open-File Report 79-1516
Stratigraphic relations of the Navajo Sandstone to Middle Jurassic formations, southern Utah and northern Arizona
Fred Peterson, G. N. Pipiringos
1979, Open-File Report 79-281
No abstract available....
Suspended-sediment and velocity data, Amazon River and its tributaries, June-July 1976 and May-June 1977
Robert H. Meade, C.F. Nordin Jr., W. F. Curtis, H.A. Mahoney, B. M. Delaney
1979, Open-File Report 79-515
A uranium occurrence in an altered volcanic flow near Essex, California
James K. Otton, Richard K. Glanzman, Elizabeth Brenner-Tourtelot
1979, Open-File Report 79-1523
Ground-water appraisal for the community of Kiryas Joel, Orange County, New York
Roger M. Waller
1979, Open-File Report 79-401
A major fracture system in indurated sedimentary rocks forms a moderately extensive aquifer yielding 100-300 gallons per minute to wells 160 to 420 feet deep. Pumping-test data show that the fracture system is interconnected to distances more than 1,000 feet from the wells. Recharge occurs through overlying clayey till, and...
WATSTORE User's Guide, National Water Data Storage and Retrieval System, Vol. 4, Chapter 1, Instructions for peak flow file
W.D. Lepkin, M.M. DeLapp, W.H. Kirby, T.A. Wilson
1979, Open-File Report 79-1336-I
No abstract available....
