The upper part of the Upper Triassic Chinle Formation and related rocks, southeastern Utah and adjacent areas
R. B. O'Sullivan
1970, Professional Paper 644-E
Geologic map of the Daggett quadrangle, San Bernardino County, California
T. W. Dibblee Jr.
1970, IMAP 592
An hypothesis of the chemical environment of the Rand Goldfield, South Africa
W. Bradley Myers
1970, Open-File Report 70-238
No abstract available....
Various aspects of uranium ore rolls in the United States
Elbert Nelson Harshman
1970, Open-File Report 70-154
About 40 percent of the uranium ore reserves in the United States, minable at $8 per pound of contained U308, are in roll-type deposits in the State of Wyoming. The host rocks are arkosic sandstones, deposited in intermontane basins under fluvial conditions, and derived from the granitic cores of mountain...
Preliminary geologic map of the Point Dume quadrangle, Los Angeles County, California
R. H. Campbell, B.H. Blackerby, R. F. Yerkes, J. E. Schoellhamer, P. W. Birkeland, C. M. Wentworth
1970, Open-File Report 70-53
Land and water for tomorrow
Raymond L. Nace
1970, Open-File Report 70-241
No abstract available....
Aeromagnetic map of the central Colorado Plateau, Utah, Colorado, and Arizona
Water Resources Division, U.S. Geological Survey
1970, Open-File Report 70-335
No abstract available....
Magnetometer survey in the Jebel Idsas area, Saudi Arabia
W. E. Davis, R. V. Allen, M.N. Akhrass
1970, Open-File Report 70-97
A ground magnetometer investigation in: the southern part of the Jebel Idsas magnetite area, Kingdom of Saudi Arabia, was done in compliance to requests by D. R. Mabey and F. Keller to delineate the source of the aeromagnetic total-intensity anomaly that was interpreted as being the expression of a commercial...
Geologic map of Tehachapi Quadrangle, Kern County, California
T. W. Dibblee Jr., G.P. Louke
1970, IMAP 607
Geological reconnaissance of the western part of the Wadi Ar Rimah quadrangle, Saudi Arabia
James W. Mytton
1970, Open-File Report 70-239
No abstract available....
Geologic map of the Cummings Mountain Quadrangle, Kern County, California
T. W. Dibblee Jr., A.H. Warne
1970, IMAP 611
Perception via satellite
Charles J. Robinove
1970, Water Spectrum (2) 14-19
The earth resources observation satellite (EROS) program in the Department of the Interior is intended to gather and use data from satellites and aircraft on natural and man-made features of the earth's surface. Earth resources technology satellite will provide the EROS program with data for use in dealing with natural...
Color infrared film as a negative material
Robert W. Pease
1970, Remote Sensing of Environment (1) 195-198
Original problems encountered in endeavors to use color infraredfilm as a negative material have been overcome by a simple modification in processing. This makes more feasible the production of infrared color prints for field use and yields an infrared counterpart to Aero-Neg....
Using radar imagery for crop discrimination: a statistical and conditional probability study
R. M. Haralick, F. Caspall, D.S. Simonett
1970, Remote Sensing of Environment (1) 131-142
A number of the constraints with which remote sensing must contend in crop studies are outlined. They include sensor, identification accuracy, and congruencing constraints; the nature of the answers demanded of the sensor system; and the complex temporal variances of crops in large areas. Attention is then focused on several...
ERTS-A satellite imagery
Alden P. Colvocoresses
1970, Photogrammetric Engineering (36) 555-561
The first satellite designed to survey the Earth's resources is scheduled to be launched in 1972. This satellite, known as ERTS-A, will telemeter frames of imagery each covering 100-nautical-mile squares of the Earth. Except for the internal anomalies in the sensor system, the imagery, after being properly scaled, rectified, and...
A graphic presentation of stream gain or loss as an aid in understanding streamflow characteristics
Neil C. Koch
1970, Water Resources Research (6) 239-245
A graphic presentation of cumulative monthly stream gain or loss on a given stream reach is used as a tool to show whether the stream gain or loss is apparent or real, and to determine the magnitude, time, and cause of the gain or loss. The graphic method could also...
Interstitial water studies on small core samples, Deep Sea Drilling Project, Leg 5
F.T. Manheim, K.M. Chan, F.L. Sayles
1970, Initial reports of the Deep Sea Drilling Project (5) 501-511
Leg 5 samples fall into two categories with respect to interstitial water composition: 1) rapidly deposited terrigenous or appreciably terrigenous deposits, such as in Hole 35 (western Escanaba trough, off Cape Mendocino, California); and, 2) slowly deposited pelagic clays and biogenic muds and oozes. Interstitial waters in the former show...
North American Devonian conodont biostratigraphy
G Klapper , Charles Sandberg, C Collinson, J. W. Huddle, R.W. Orr, L.V. Richard, D Schumacher, G Seddon, T.T. Uyeno
1970, GSA Memoirs (127) 285-316
The Lower Devonian of Nevada provides a reference sequence of nine conodont faunas, five of which are also at Royal Creek, Yukon Territory. The first appearance of Icriodus woschmidti is comparable to that in the lower Gedinnian in Europe; the Polygnathus dehiscens- P. foveolatus lineage correlates with the Emsian. Directly...
Volcanic history of the San Juan Mountains, Colorado, as indicated by potassium-argon dating
Peter W. Lipman, Thomas A. Steven, Harald H. Mehnert
1970, GSA Bulletin (81) 2329-2352
Volcanic rocks in the San Juan Mountains constitute the largest erosional remnant of a once nearly continuous volcanic field that extended over much of the southern Rocky Mountains and adjacent areas in Oligocene and later time. Recent regional studies have shown that the gross petrologic evolution throughout the San Juan...
Correlation of aeromagnetics and aeroradioactivity with lithology in the Spotsylvania area, Virginia
S.K. Neuschel
1970, Geological Society of America Bulletin (81) 3575-3582
The U.S. Geological Survey made a detailed aeromagnetic and aeroradioactivity survey of 1050 sq mi of the Spotsylvania area in the Piedmont province of eastern Virginia. The study area consists of sixteen 7 1/2-minute quadrangles in Spotsylvania and adjoining counties, Virginia. East-west traverses were flown at a spacing of 1/2...
Geochemical balance of a small watershed and its geomorphic implications
E.T. Cleaves, A.E. Godfrey, O.P. Bricker
1970, Geological Society of America Bulletin (81) 3015-3032
A detailed input-output study of a small forested watershed draining the Wissahickon Formation in the Piedmont of Maryland revealed that chemical solution is five times as effective in removing material as is mechanical erosion. Solution weathering removes 16.9 tons/sq mi/yr of material compared with 3.2 tons/sq mi/yr by mechanical erosion....
A revision of stratigraphic nomenclature for middle precambrian rocks in Northern Michigan
W.F. Cannon, J. E. Gair
1970, Geological Society of America Bulletin (81) 2843-2846
The name Marquette Range Supergroup is proposed to supplant the term Animikie Series for middle Precambrian strata of the Northern Peninsula of Michigan and adjacent areas of Wisconsin. The Marquette Range Supergroup consists of the Chocolay, Menominee, Baraga, and Paint River Groups, as defined in previous literature. We feel that...
Selected ground-water data in the eugene-springfield area, southern Willamette Valley, oregon
F. J. Frank, Nyra A. Johnson
1970, Report
No abstract available....
A linear programming and least squares computer method for solving petrologic mixing problems
Thomas L. Wright, Patrick C. Doherty
1970, GSA Bulletin (81) 1995-2008
Problems of petrologic mixing have been solved using a two-stage computer-based calculation. First, linear programming is used to obtain an approximate solution and to identify non-negative solution values. Then a conventional least squares calculation is performed using the analyses represented by non-negative solution values as input to yield an optimum...
Mechanism of the Chilean Earthquakes of May 21 and 22, 1960
George Plafker, James C. Savage
1970, GSA Bulletin (81) 1001-1030
The Chilean earthquake sequence of May 21–22, 1960, was accompanied by linear zones of tectonic warping, including both uplift and subsidence relative to sea level. The region involved is more than 200 km wide and about 1000 km long, and lies along the continental margin between latitude 37° and 48°...