Publications
Filter Total Items: 7539
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, September 1985 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, September 1985
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin
Steens Mountain geomagnetic polarity transition is a single phenomenon Steens Mountain geomagnetic polarity transition is a single phenomenon
[No abstract available]
Authors
C. S. Grommé, E. A. Mankinen, M. Prevot, R. S. Coe
A general earthquake-observation system (GEOS) A general earthquake-observation system (GEOS)
Microprocessor technology has permitted the development of a General Earthquake-Observation System (GEOS) useful for most seismic applications. Central-processing-unit control via robust software of system functions that are isolated on hardware modules permits field adaptability of the system to a wide variety of active and passive seismic experiments and straightforward modification...
Authors
R. D. Borcherdt, Joe B. Fletcher, E.G. Jensen, G.L. Maxwell, J.R. VanSchaack, R.E. Warrick, E. Cranswick, M.J.S. Johnston, R. McClearn
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, July 1985 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, July 1985
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin
A drowned Holocene barrier spit off Cape Ann, Massachusetts A drowned Holocene barrier spit off Cape Ann, Massachusetts
Seismic profiles and bathymetric contours reveal a drowned barrier spit on Jeffreys Ledge off Cape Ann, Massachusetts. Seaward-dipping internal reflectors indicate that a regressive barrier formed during the early Holocene low sea-level stillstand. Preservation of the barrier spit may have been favored by its large size (as much as 20 m thick), by an ample sediment supply from...
Authors
Robert N. Oldale
Bottom current and sediment transport on San Pedro Shelf, California Bottom current and sediment transport on San Pedro Shelf, California
GEOPROBE (Geological Processes Bottom Environmental) tripods were used to measure bottom currents, pressure, and light transmission and scattering and to obtain time-series photographs of the sea floor at depths of 23 m and 67 m on San Pedro shelf between 18 April and 6 June 1978. Winds were light ( 5 m/s) with a mean direction from the southwest throughout the measurement period. Hourly...
Authors
David E. Drake, David A. Cacchione, Herman A. Karl
Occurrence and preservation of Eocene squamariacean and coralline rhodoliths: Eau, Tonga Occurrence and preservation of Eocene squamariacean and coralline rhodoliths: Eau, Tonga
A widespread rhodolith facies occurs within middle Eocene limestones of Eua, Tonga (Fig. 1). These limestones, first described by Hoffmeister (1932), represent a portion of a broad, early Tertiary platform that developed in the Tonga area prior to disruption and uplift by later Tertiary plate movements (Kroenke and Tongilava 1975). Algal rhodoliths form beds several meters thick within...
Authors
Binyamin Buchbinder, Robert B. Halley
Block Island fault: A Paleozoic crustal boundary on the Long Island platform Block Island fault: A Paleozoic crustal boundary on the Long Island platform
A major fault cutting through most of the crust can be identified and mapped on the Long Island platform using multichannel seismic reflection profiles and magnetic data. The fault, here called the Block Island fault (BIF), strikes north-northeast, dips westward at low angle, and does not resemble the thin-skinned thrust faulting observed in the foreland of the Appalachians. The BIF is...
Authors
Deborah R. Hutchinson, Kim D. Klitgord, R. S. Detrick
In situ stress, natural fracture distribution, and borehole elongation in the Auburn Geothermal Well, Auburn, New York In situ stress, natural fracture distribution, and borehole elongation in the Auburn Geothermal Well, Auburn, New York
Hydraulic fracturing stress measurements and a borehole televiewer survey were conducted in a 1.6‐km‐deep well at Auburn, New York. This well, which was drilled at the outer margin of the Appalachian Fold and Thrust Belt in the Appalachian Plateau, penetrates approximately 1540 m of lower Paleozoic sedimentary rocks and terminates 60 m into the Precambrian marble basement. Analysis of...
Authors
Stephen H. Hickman, John H. Healy, Mark D. Zoback
By
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: October 1985 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: October 1985
No abstract available.
Authors
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, P.A. Franklin
Bibliography of United States landslide maps and reports Bibliography of United States landslide maps and reports
No abstract available.
Authors
C.S. Alger, E. E. Brabb
By
Geology, Energy, and Minerals Mission Area, Natural Hazards Mission Area, Energy Resources Program, Landslide Hazards Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Geologic Hazards Science Center, Geology, Minerals, Energy, and Geophysics Science Center
Proceedings of Workshop XXVIII on the Borah Peak, Idaho, earthquake: Volume B. Fault scarps, landslides and other features associated with the Borah Peak earthquake of October 28, 1983, central Idaho: A field trip guide, with a section on the Doublespring Proceedings of Workshop XXVIII on the Borah Peak, Idaho, earthquake: Volume B. Fault scarps, landslides and other features associated with the Borah Peak earthquake of October 28, 1983, central Idaho: A field trip guide, with a section on the Doublespring
No abstract available.
Authors
Anthony J. Crone, M. H. Hait