Ground-water exploration in the Bosque del Apache Grant, Socorro County, New Mexico
James B. Cooper
1968, Open-File Report 68-63
Test drilling along the Rio Grande in the Bosque del Apache Grant in Socorro County, New Mexico has shown that the area is hydrologically complex and that the quality of the ground water varies from saline to fresh within short distances both laterally and vertically. Nearly all of the riverside...
Data on wells and springs on Vandenberg Air Force Base and vicinity, Santa Barbara County, California
Stanley G. Robson
1968, Open-File Report 68-233
Estimated existing and potential ground-water storage in major drainage basins in Oregon
J. H. Robison
1968, Open-File Report 68-232
Ground-water resources in the vicinity of the Crown Point Fish Hatchery, Essex County, New York
I.H. Kantrowitz
1968, Open-File Report 67-125
The Crown Point Fish Hatchery, one of several hatcheries operated by the New York State Conservation Department, is located in Crown Point Center, Essex County, on the eastern edge of the Adirondack Highlands and about 2 miles west of Lake Champlain. Figure 1 is a location map of the vicinity...
Maps showing structure, overburden, and thickness for a rich oil-shale sequence in the Eocene Green River Formation, east-central Uinta Basin, Utah and Colorado
W. B. Cashion
1968, Open-File Report 68-33
No abstract available....
Silver-rich disseminated sulfides from a tungsten-bearing quartz lode, Big Creek district, central Idaho
B. F. Leonard, C.W. Mead, Nancy Conklin
1968, Professional Paper 594-C
Aeromagnetic map of the Warren quadrangle, Worcester, Hampden, and Hampshire Counties, Massachusetts
Water Resources Division, U.S. Geological Survey
1968, Geophysical Investigations Map 620
No abstract available....
Geologic map of the Twentynine Palms quadrangle, San Bernardino and Riverside Counties, California
T. W. Dibblee Jr.
1968, IMAP 561
Color photographs for water resources studies
William J. Schneider
1968, Photogrammetric Engineering (34) 257-262
Air-photo interpretation is very well suited to water resources studies where limited observations of hydrologic data must be extended to regional characteristics for large areas. It is also useful in monitoring the hydrologic regimen of an area to detect possible changes. Color aerial photography is generally superior to black-and-white photography...
Geological interpretation of a Gemini photo
William R. Hemphill, Walter Danilchik
1968, Photogrammetric Engineering (34) 150-154
Study of the Gemini V photograph of the Salt Range and Potwar Plateau, West Pakistan, indicates that small-scale orbital photographs permit recognition of the regional continuity of some geologic features, particularly faults and folds that could he easily overlooked on conventional air photographs of larger scale. Some stratigraphic relationships can...
Evaporation study at Warm Springs Reservoir, Oregon
D.D. Harris
1968, Report
The mass transfer-water budget method of computing reservoir evaporation was tested on Warm Springs Reservoir, whose contents and surface area change greatly from early spring to late summer. The mass-transfer coefficient computed for the reservoir is two to three times greater than expected and results in a computed evaporation much...
Data for springs in the southern coast, transverse, and peninsular ranges of California
Charles Floyd Berkstresser
1968, Report
Ground-water resources of Monmouth County, New Jersey
Leo A. Jablonski
1968, New Jersey Division of Water Policy and Supply Special Report 23
Monmouth County includes an area of 538 square miles in east-central New Jersey. The climate is characterized by moderate temperature, moderate humidity, and moderate precipitation. The exposed rocks in the area are chiefly sands and clays, which range in age from Late Cretaceous through Recent. The formations strike northeast-southwest and dip...
Data for springs in the northern coast ranges and Klamath Mountains of California
Charles Floyd Berkstresser
1968, Report
Geology of the Magruder Mountain area, Nevada-California
Edwin H. McKee
1968, Bulletin 1251-H
No abstract available....
Seismic evidence for the thickness of Cenozoic deposits in Mono Basin, California
L. C. Pakiser
1968, Bulletin of the Geological Society of America (79) 1833-1838
From gravity and limited seismic data obtained in 1957, Pakiser and others (1960) reported a thickness of Cenozoic deposits in the deepest part of Mono Basin, California, of 5.5 ± 1.5 km. Later, in 1962, from a series of chemical explosions in the westernmost part of Mono Basin and outside...
Borax solution at Kramer, California
Ward C. Smith
1968, Economic Geology (63) 877-883
Material of obscure structure that forms part of the hanging wall of the great sodium borate ore body at Kramer, Kern County, Calif., is interpreted herein as collapsed insoluble claystone layers left where interbedded borax has been dissolved. Nodular ulexite in such collapsed material is secondary; relationships between primary borax...
On the maintenance of anomalous fluid pressures: I. thick sedimentary sequences
J.D. Bredehoeft, B.B. Hanshaw
1968, Geological Society of America Bulletin (79) 1097-1106
Various physical and chemical processes may be envisioned which will cause anomalous pressures on an underground fluid. In order to consider the maintenance of anomalous pressure, it is necessary to consider the problem as one of nonsteady fluid flow. The time rate of pressure change and maintenance depends upon the...
On the maintenance of anomalous fluid pressures: II. Source layer at depth
B.B. Hanshaw, J.D. Bredehoeft
1968, Geological Society of America Bulletin (79) 1107-1122
Physico-chemical mechanisms have been suggested to account for anomalous fluid pressures in the geologic environment which require a fluid source at depth. The persistence of anomalous pressure is a problem that involves nonsteady fluid flow. The hydrodynamics and particular boundary conditions control the time rate of pressure change and its...
The age of the Puerto Rico Trench
W. H. Monroe
1968, Geological Society of America Bulletin (79) 487-494
The Puerto Rico Trench is parallel to and north of Puerto Rico and the Virgin Islands and reaches depths of more than 8000 meters. Puerto Rico, the closest land area, has a central longitudinal core of Cretaceous and early Tertiary volcanic rocks, some serpentinite of undetermined age, and numerous small...
Summary of regional evidence for right-lateral displacement in the western Great Basin
J. H. Stewart, J. P. Albers, F. G. Poole
1968, GSA Bulletin (79) 1407-1414
Right-lateral displacement of 80 to 120 miles across the western Great Basin is indicated by the consistent disruption of sedimentary facies and thickness trends of formations ranging in age from late Precambrian to Mesozoic. Some of this displacement occurs as fault slip and some as a more pervasive large-scale drag...
Biostratigraphic classification of the marine Triassic in North America
N. J. Silberling, E. T. Tozer
1968, Book
Ammonoid faunas representative of every major part of Triassic time occur at one place or another in the marine Triassic strata of western and arctic North America. Though some intracontinental provincialism is evident, particularly among Lower and Middle Triassic ammonoid faunas, various local sections where parts of the faunal sequence...
Cenozoic volcanism and sedimentation, silver peak region, western Nevada and adjacent California
Paul T. Robinson, Edwin H. McKee, Richard J. Moiola
1968, GSA Bulletin (116) 577-611
Cenozoic deposits of the Silver Peak region, western Nevada, and adjacent California consist principally of continental sedimentary and pyroclastic rocks of the Esmeralda Formation and lavas and tuffs of the Silver Peak volcanic center.The sedimentary rocks comprise several thick sequences of tuffaceous volcanic sandstone and siltstone and interbedded air-fall tuff....
O18/O16 ratios of coexisting minerals in glaucophane-bearing metamorphic rocks
Hugh P. Taylor Jr., Robert G. Coleman
1968, GSA Bulletin (79) 1727-1756
Oxygen isotope analyses have been obtained for coexisting minerals in several blue-schist-facies metamorphic rocks from California, Oregon, and New Caledonia. Detailed isotopic studies were made on a continuous exposure of schist in Ward Creek, California, previously described by Coleman and Lee (1962). The oxygen isotope fractionations among coexisting minerals in...
Age of first marine terrace near Santa Cruz, California
W.C. Bradley, Warren O. Addicott
1968, GSA Bulletin (79) 1203-1210
Five species of shallow neritic Pleistocene mollusks from a central California marine terrace give these Th230/U238 ages: 88,000; 68,000; 76,000; 16,000; 100,000; 91,000 (from data in Blanchard and others, 1967). With one exception, the ages fall between 68,000 and 100,000 years. This broad grouping of ages, its general agreement with dates...
