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...
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...
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,...
Use of LiBO2 flux for K-Ar dating
J. C. Engels, C.O. Inamells
1970, Talanta (17) 783-784
No abstract available....
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
Methods for collection and analysis of water samples for dissolved minerals and gases
Eugene Brown, Marvin W. Skougstad, Marvin J. Fishman
1970, Techniques of Water-Resources Investigations 05-A1
No abstract available....
Geologic map of the Midway quadrangle, central Kentucky
John S. Pomeroy
1970, Geologic Quadrangle 856
Geologic map of the Chatham quadrangle, Barnstable County, Cape Cod, Massachusetts
Robert N. Oldale, Carl Koteff
1970, Geologic Quadrangle 911
A digital model for aquifer evaluation
George Francis Pinder
1970, Techniques of Water-Resources Investigations 07-C1
Thermal, oxygen and conductance characteristics of a new and an old Ozark reservoir
James W. Mullan, David I. Morais, Richard L. Applegate
1970, Technical Paper 52
Early Silurian graptolites from southeastern Alaska and their correlation with graptolitic sequences in North America and the Arctic
Michael Churkin Jr., Claire Carter
1970, Professional Paper 653
A study of the crested tinamou of Argentina
Wayne H. Bohl
1970, Special Scientific Report - Wildlife 131
Atlantic Continental Shelf and Slope of the United States - Heavy minerals of the continental margin from southern Nova Scotia to northern New Jersey
D.A. Ross
1970, Professional Paper 529-G
Mammals imported into the United States in 1968
Clyde Jones
1970, Special Scientific Report - Wildlife 137
Aeromagnetic survey composite map, Oregon Coast
Water Resources Division, U.S. Geological Survey
1970, Open-File Report 70-341
No abstract available....
Geologic map of the Fairbanks A-2 quadrangle, Alaska
Clyde Wahrhaftig
1970, Geologic Quadrangle 808
White-spot disease of fish eggs and fry
Ken Wolf
1970, Fish Disease Leaflet 22
Interpretation of the aeromagnetic pattern of the Uncompahgre primitive area, San Juan Mountains, Colorado
Peter Popenoe, Robert G. Luedke
1970, Open-File Report 70-266
