Buldir Depression - A Late Tertiary graben on the Aleutian Ridge, Alaska
M. S. Marlow, D.W. Scholl, E. C. Buffington, R.E. Boyce, T. R. Alpha, P.J. Smith, C.J. Shipek
1970, Marine Geology (8) 85-108
Buldir Depression is a large, rectilinear basin that lies on the northern edge of the Aleutian Ridge and is aligned with the arcuate chain of active volcanoes on the ridge crest. The depression appears to be a volcanic-tectonic feature, which began to form...
Earthquakes induced by fluid injection and explosion
J. H. Healy, R. M. Hamilton, C.B. Raleigh
1970, Tectonophysics (9) 205-214
Earthquakes generated by fluid injection near Denver, Colorado, are compared with earthquakes triggered by nuclear explosion at the Nevada Test Site. Spatial distributions of the earthquakes in both cases are compatible with the hypothesis that variation of fluid pressure in preexisting fractures controls...
Pollution of estuaries
R. L. Cory, J. W. Nauman
1970, Marine Pollution Bulletin (1) 87-91
No abstract available. ...
Coastal currents and mass transport of surface sediments over the shelf regions of Monterey Bay, California
Stephen C. Wolf
1970, Marine Geology (8) 321-336
In Monterey Bay, the highest concentrations of medium and fine sands occur nearshore between ten and thirty fathoms. Silt and clay accumulate in greater depths. Contours of median diameter roughly parallel the isobaths.Fine-grained materials are supplied to the bay region from erosion of cliffs which partly surround Monterey Bay, from...
Development of the Astoria Canyon-Fan physiography and comparison with similar systems
C.H. Nelson, P.R. Carlson, J.V. Byrne, T. R. Alpha
1970, Marine Geology (8) 259-291
A detailed bathymetric study of Astoria Canyon and Astoria Fan provides a model for typical submarine canyon-fan systems. The present canyon head is 9 miles (17 km) west of the Columbia River mouth but buried Pleistocene channels appear to have connected the two features in the past. The canyon, which...
The structure and origin of the large submarine canyons of the Bering Sea
D.W. Scholl, E. C. Buffington, D.M. Hopkins, T. R. Alpha
1970, Marine Geology (8) 187-210
Three exceptionally large and long submarine canyons — Bering, Pribilof, and Zhemchug — incise the continental slope underlying the southeastern Bering Sea. Bering Canyon, the world's longest known slope valley, is approximately 400 km long and has a volume of 4,300 km3. The volume of Pribilof Canyon is 1,300 km3 and...
Rapid changes in the head of the Rio Balsas Submarine Canyon system, Mexico
E. Reimnitz, M. Gutierrez-Estrada
1970, Marine Geology (8) 245-258
The investigation of a river delta and the heads of several nearby submarine canyons in western Mexico produced evidence for rapid changes in the configuration and depth of the nearshore portions of canyon tributaries. General scarcity of data on the rates of submarine...
The mechanics of stick-slip
J.D. Byerlee
1970, Tectonophysics (9) 475-486
Physical mechanisms that have been proposed to explain the occurrence of stick-slip motion during frictional sliding have been examined in the light of results obtained from experiments with rocks and brittle minerals. An instability caused by sudden brittle fracture of locked regions on...
Submarine basalt from the Revillagigedo Islands region, Mexico
J.G. Moore
1970, Marine Geology (9) 331-345
Ocean-floor dredging and submarine photography in the Revillagigedo region off the west coast of Mexico reveal that the dominant exposed rock of the submarine part of the large island-forming volcanoes (Roca Partida and San Benedicto) is a uniform alkali pillow basalt; more siliceous rocks are exposed on the upper, subaerial...
Use of LiBO2 flux for K-Ar dating
J. C. Engels, C.O. Inamells
1970, Talanta (17) 783-784
No abstract available....
Determination of iridium in mafic rocks by atomic absorption
F. S. Grimaldi, M. M. Schnepfe
1970, Talanta (17) 617-621
Iridium is determined in mineralized mafic rocks by atomic absorption after fire-assay concentration into a gold bead. Interelement interferences in the atomic-absorption determination are removed and Ir sensitivity is increased by buffering the solutions with a mixture of copper and sodium sulphates. Substantial amounts of Ag,...
Water resources data for Idaho, water year 1969: Part 1. Surface water records
U.S. Geological Survey
1970, Water Data Report ID-69-1
Surface-water records for the 1969 water year for gaging stations, partial-record stations, and miscellaneous sites within the State of Idaho are given in this report and their locations shown in figures 2 and 3. Records for a few selected gaging stations in bordering States also are included. The records were...
Field methods for measurement of fluvial sediment
Harold P. Guy, Vernon W. Norman
1970, Techniques of Water-Resources Investigations 03-C2
Geologic map of the Jemez Mountains, New Mexico
R. L. Smith, R. A. Bailey, C. S. Ross
1970, IMAP 571
Geology of the Bushrod Island-New Georgia clay deposit near Monrovia, Liberia
Lawrence Vernon Blade
1970, Open-File Report 70-29
The Bushrod Island-New Georgia clay deposit near Monrovia, Liberia, consisted of interlensing clay and very fine to fine quartz sand; it was deposited in elongate subparallel troughs that had been eroded in coarse-grained sediments. The troughs are interpreted as abandoned stream channels on a former delta of the St. Paul...
Hydrology of the Upper Malad River basin, southeastern Idaho
Edward J. Pluhowski
1970, Water Supply Paper 1888
The report area comprises 485 square miles in the Basin and Range physiographic province. It includes most of eastern' Oneida County and parts of Franklin, Bannock, and Power Counties of southeastern Idaho. Relief is about 5,000 feet; the floor of the Malad Valley is at an average altitude of about...
Reconnaissance geologic map of the Mount Rabot Quadrangle, Transantarctic mountains, Antarctica
P. J. Barrett, J.F. Lindsay, John Gunner
1970, Antarctic Map 1
Geologic map of the Chatham quadrangle, Barnstable County, Cape Cod, Massachusetts
Robert N. Oldale, Carl Koteff
1970, Geologic Quadrangle 911
Woodcock status report, 1969
Eldon R. Clark
1970, Special Scientific Report - Wildlife 133
A digital model for aquifer evaluation
George Francis Pinder
1970, Techniques of Water-Resources Investigations 07-C1
Geologic map of the Midway quadrangle, central Kentucky
John S. Pomeroy
1970, Geologic Quadrangle 856
Common marsh plants of the United States and Canada
Neil Hotchkiss
1970, Resource Publication 93
This is the fourth of a series of publications on field identification of North American marsh and water plants. It describes the emergent and semiemergent plants most likely to be found in inland and coastal marshes. It omits hundreds of uncommon marsh plants and plants less characteristic of marshes than...
Progress in sport fishery research, 1970
Bureau Of Sport Fisheries And Wildlife
1970, Resource Publication 106
No abstract available....
Cooperative Fishery Unit report for the 1969-1970 school year
Edward C. Kinney
1970, Resource Publication 90
No abstract available....
About nutria and their control
James Evans
1970, Resource Publication 86
Wild animals are generally classed as beneficial or pest species, depending on the variable interests of man. Those that provide him with earnings, recreation, or enjoyment are considered beneficial; those that compete with him for food, or ruin his possessions or environment, are quickly dubbed pests. But all men do...
