Metagraywacke in the Salinian Block, central Coast Ranges, California: And a possible correlative across the San Andreas Fault
Donald C. Ross
1976, Journal of Research of the U.S. Geological Survey (4) 683-696
The schist of Sierra de Salinas is a monotonously homogeneous biotite quartzofeldspathic schist with minor amounts of quartzite, amphibolite, and marble that forms a northwest-trending outcrop belt that strikes across parts of the Santa Lucia and Gabilan Ranges and is traceable further south in the subsurface to where it is...
Volcanic rocks of the eastern and northern parts of the San Francisco volcanic field, Arizona
Richard B. Moore, Edward W. Wolfe, George E. Ulrich
1976, Journal of Research of the U.S. Geological Survey (4) 549-560
The eastern and northern parts of the San Francisco volcanic field, between San Francisco Mountain and the Little Colorado River, contain about 175 cinder cones, many with one or more associated lava flows, and one center of silicic volcanism, O'Leary Peak. Basaltic flows and cones are divided into five groups,...
The aeromagnetic expression of bedrock geology between the Clinton-Newbury and Bloody Bluff fault zones, northeastern Massachusetts
Donald C. Alvord, Kenneth G. Bell, Maurice H. Pease Jr., Patrick J. Barosh
1976, Journal of Research of the U.S. Geological Survey (4) 601-604
The pattern of mapped bedrock geology in northeastern Massachusetts bears a striking similarity to patterns of aeromagnetic anomalies in the area. The correspondence of the geology with the anomaly pattern and lineaments on aeromagnetic maps is especially well shown northwest of Boston between the Clinton-Newbury and Bloody Bluff fault zones....
Bicarbonate content of groundwater in carbonate rock in eastern North America
F.W. Trainer, R.C. Heath
1976, Journal of Hydrology (31) 37-55
In carbonate-rock terrane the most effective solution occurs where soil and vegetative cover facilitate biogenic production and storage of CO2 in the soil until part of it is carried downward in percolating water. Bicarbonate data for groundwater in eastern North America are examined in the light of these conditions, of...
Evidence of post-Pleistocene faults on New Jersey Atlantic outer continental shelf
R. E. Sheridan, H.J. Knebel
1976, American Association of Petroleum Geologists Bulletin (60) 1112-1117
Recently obtained high-resolution seismic profiles (400-4,000-Hz band) show evidence of faults in shallow sedimentary strata near the edge of the Atlantic continental shelf off New Jersey. Apparent normal faults having a throw of about 1.5 m displace sediments to within 7 m of the sea floor. The faults appear to...
Revision of Mississippian stratigraphy, eastern Idaho and northeastern Utah
William Jasper Sando, J. Thomas Dutro Jr., Charles Sandberg, Bernard L. Mamet
1976, Journal of Research of the U.S. Geological Survey (4) 467-479
New paleontologic evidence requires a revision of previous interpretations of the stratigraphy of Mississippian sequences in the Cordilleran miogeosyncline of eastern Idaho and northeastern Utah. A postulated unconformity between rocks of early Osagean age and rocks of middle Meramecian age is no longer tenable in the light of new data....
Mississippi carbonate shelf margins, western United States
Peter R. Rose
1976, Journal of Research of the U.S. Geological Survey (4) 449-466
Regional linear carbonate shelf margins, or stratigraphic reefs, are postulated to have developed during Mississippian time along the eastern flank of the Cordilleran miogeosyncline in the Western United States. These shelf margins are analogous to well-documented ancient and modern geologic counterparts, such as the Guadalupian reef of the West Texas...
Fission-track ages of sphene and apatite of granitic rocks of the Salinian block, Coast Ranges, California
C. W. Naeser, D. C. Ross
1976, Journal of Research of the U.S. Geological Survey (4) 415-420
Fission-track ages have been determined on apatite and sphene from granitic rocks of the Salinian block, California Coast Ranges. The 26 age determinations on sphene range between 68 and 93 m.y. The 24 age determinations on apatite have a greater variation, ranging from 3 to 74 m.y. None of the...
Geology of the Brysch uranium mine, Karnes County, Texas
Kendall A. Dickinson, Michael W. Sullivan
1976, Journal of Research of the U.S. Geological Survey (4) 397-404
Approximately 13,700 tons (12,400 tonnes) of oxidized uranium ore, averaging about 0.1 percent U2O8, was mined during 1966 and 1967 from the lower unit of the Deweesville Sandstone Member of the upper Eocene Whitsett Formation, from depths of 75 to 90 feet (23-27 m). The mine is in the Karnes...
Thin-skinned tectonics and potential hydrocarbon traps: Illustrated by a seismic profile in the Valley and Ridge province of Tennessee
Leonard D. Harris
1976, Journal of Research of the U.S. Geological Survey (4) 379-386
Seismic data, although limited to a small part of the western half of the Valley and Ridge province in Tennessee, confirm that the structural style is thin-skinned and that there is a fundamental change from west to east in both the total section preserved and the structural complexities that exist...
Hydrogeology of a drift-filled bedrock valley near Lino Lakes, Anoka County, Minnesota
T. C. Winter, H.O. Pfannkuch
1976, Journal of Research of the U.S. Geological Survey (4) 267-276
The bedrock surface of east-central Minnesota is dissected by an intricate network of valleys. Outside the bedrock valley at site B, 3 mi (4. 8 km) from site A, 100 ft (30 m) of drift overlies the bedrock surface. Observation wells were installed...
Mississippian history of the northern Rocky Mountains region
William Jasper Sando
1976, Journal of Research of the U.S. Geological Survey (4) 317-338
The Mississippian history of the northern Cordilleran region of the United States consists of two principal depositional cycles separated by a cycle of epeirogenic uplift and erosion. Each depositional cycle is divisible into phases that represent significant changes in depositional patterns. During Cycle I (early Kinderhookian-early Meramecian), predominantly carbonate and...
Factors affecting declining water levels in a sewered area of Nassau County, New York
Murray S. Garber, Dennis J. Sulam
1976, Journal of Research of the U.S. Geological Survey (4) 255-265
Double-mass-curve analysis of ground-water levels in Nassau County, Long Island, N.Y., shows that the average-weighted ground-water levels in a 32-mi2 (83-km2) segment of a sewered area declined 11.8 ft (3.6 m) relative to an adjacent unsewered area to the east during 1953-72. Electric-analog-model analysis indicates that 4.9 ft (1.5...
Bog stratigraphy, radiocarbon dates, and Pinedale to Holocene glacial history in the Front Range, Colorado
Richard F. Madole
1976, Journal of Research of the U.S. Geological Survey (4) 163-169
Radiocarbon dates and stratigraphic cores from bogs, kettle ponds, and former ice-marginal lakes on the east and west sides of the Front Range, Colo., between lat 40°00' and 40°24' N. suggest that (1) valley glaciers of Pinedale age began to recede from their terminal positions between about 14,600 and 13,000...
Establishment of the black-tailed jackrabbit on the Virginia eastern shore
R. B. Clapp, J.S. Weske, T.C. Clapp
1976, Journal of Mammalogy (57) 180-181
No abstract available. ...
Geologic data from test drilling in Palm Beach County, Florida since 1970
James J. Schneider
1976, Open-File Report 76-713
Test hole data, in Palm Beach County, Florida, include lithologic logs from 66 test wells and geophysical logs from 54 test wells. The purpose of the study is to provide the geohydrologic information needed for water management and land use decisions, with emphasis on the urbanized eastern part of the...
Nitrogen and phosphorus uptake in the Everglades Conservation Areas, Florida, with special reference to the effects of backpumping runoff
Benjamin F. McPherson, Bradley G. Waller, H. C. Mattraw
1976, Water-Resources Investigations Report 76-29
In much of the water pumped into the northern Everglades, Florida, concentrations of inorganic nitrogen and phosphorus are relatively high. These nutrients are transported in the canals or into the peripheral marshes. Concentrations decrease sharply within 330 feet or less of the canals, whereas specific conductance remains essentially unchanged within...
Some characteristics of fall migration of female woodcock
R.A. Coon, P.D. Caldwell, G.L. Storm
1976, Journal of Wildlife Management (40) 91-95
Nine female woodcock (Philohela minor) were radio-tagged in central Pennsylvania before fall migration to monitor premigratory and migratory movements. Within 15 days of departure, 5 of the birds moved 0.8 to 8.0 km from their normally used area, but the remaining 4 did not move. In 1973 five marked woodcock...
Earthquake history of Oregon
C. A. von Hake
1976, Earthquake Information Bulletin (USGS) (8) 30-33
Although situated between two States (California and Washington) that have has many violent earthquakes, Oregon is noticeably less active seismically. the greatest damage experienced resulted from a major shock near Olympia, Wash., in 1949. During the short history record available (since 1841), 34 earthquakes of intensity V, Modified Mercalli Scale,...
Water-quality data for canals in eastern Broward County, Florida 1969-1974
B.G. Waller, W. L. Miller, T.R. Beaven
1976, Open-File Report FL 75-009
No abstract available....
Aseismic uplift in Southern California
Robert O. Castle, Jack P. Church, Michael R. Elliot
1976, Science (192) 251-253
Preliminary examination of the historic geodetic record has disclosed crustal uplift of 0.15 to 0.25 meter that apparently began around 1960 and has since grown to include at least 12,000 square kilometers of southern California. This uplift extends at least 150 kilometers west-northwestward along the San Andreas Fault from Cajon...
The February 1969 east rift eruption of Kilauea Volcano, Hawaii
Donald A. Swanson, D. B. Jackson, R. Y. Koyanagi, T. L. Wright
1976, Professional Paper 891
No abstract available....
Hydrology of the North Cascades region, Washington: 2. A proposed hydrometeorological streamflow prediction method
Wendell V. Tangborn, Lowell A. Rasmussen
1976, Water Resources Research (12) 203-216
On the basis of a linear relationship between winter (October-April) precipitation and annual runoff from a drainage basin (Rasmussen and Tangborn, 1976) a physically reasonable model for predicting summer (May-September) streamflow from drainages in the North Cascades region was developed. This hydrometeorological prediction method relates streamflow for a season beginning...
Ground-water resources and geology of Waukesha County, Wisconsin
Joseph B. Gonthier
1975, Wisconsin Geological & Natural History Survey Information Circular 29
Good-quality water is available from the sand-and-gravel, Niagara, and sandstone aquifers in Waukesha County, Wis. As much as 15 gallons per minute (0.95 litres per second) can be obtained from wells almost everywhere in the county. Several hundred gallons per minute are available from aquifers in the glacial drift that...
Ground-water resources and geology of Jefferson County, Wisconsin
Ronald G. Borman, L. C. Trotta
1975, Wisconsin Geological & Natural History Survey Information Circular 33
A steadily increasing population in Jefferson County, Wisconsin, is expanding the need for good-quality ground water. This need can be met by good-quality water available from the sand-and-gravel, Galena-Platteville, and sandstone aquifers. As much as 15 gallons per minute (0.95 liters per second) can be obtained from wells almost everywhere...
