Skip to main content
U.S. flag

An official website of the United States government

Publications

Filter Total Items: 7539

Age of graben systems on the moon Age of graben systems on the moon

The study focuses on the time of formation of the graben. An attempt is made to determine whether the graben are restricted to geologic units of certain ages, and whether and at what time graben formation ceased. It is shown that (1) most preserved graben formed considerably later than the impacts that formed the basins; (2) graben are faults that are reactivated along older basin...
Authors
Baerbel K. Lucchitta, Jessica A. Watkins

Playback Station #2 for Cal Net and 5-day-recorder tapes Playback Station #2 for Cal Net and 5-day-recorder tapes

A second system (Playback Station #2) has been set up to play back Cal Net 1" tapes and 5-day-recorder 1/2" tapes. As with the first playback system (Playback Station #1) the tapes are played back on a Bell and Howell VR3700B tape deck and the records are written out on a 16-channel direct-writing Siemens "0scillomink." Separate reproduce heads, tape guides, and tape tension sensor...
Authors
Jerry P. Eaton

Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: October 1978 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: October 1978

The preliminary geomagnetic data included here is made available to scientific personnel and organizations, as part of a cooperative effort and on a data exchange basis because of the early need by some users. To avoid delay, all of the data is copied from original forms processed at the observatory; therefore it should be regarded as preliminary.
Authors
J.B. Townshend, J.E. Papp, S.P. Tilton

Morphology of chasma walls, Mars Morphology of chasma walls, Mars

The landforms developed on the walls of the Valles Marineris system of chasmas are of three major types, which are locally transitional. The most common type is composed of steep spurs and gullies. The dominant process in the formation or modification of this type appears to be the downslope movement of. material under the influence of gravity, resulting in the accumulation of extensive...
Authors
Baerbel K. Lucchitta

Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: September 1978 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: September 1978

The preliminary geomagnetic data included here is made available to scientific personnel and organizations, as part of a cooperative effort and on a data exchange basis because of the early need by some users. To avoid delay, all of the data is copied from original forms processed at the observatory; therefore it should be regarded as preliminary.
Authors
J.B. Townshend, J.E. Papp, S.P. Tilton

Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: December 1978 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: December 1978

The preliminary geomagnetic data included here is made available to scientific personnel and organizations, as part of a cooperative effort and on a data exchange basis because of the early need by some users. To avoid delay, all of the data is copied from original forms processed at the observatory; therefore it should be regarded as preliminary.
Authors
J.B. Townshend, J.E. Papp, S.P. Tilton

Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: February 1978 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: February 1978

The preliminary geomagnetic data included here is made available to scientific personnel and organizations, as part of a cooperative effort and on a data exchange basis because of the early need by some users. To avoid delay, all of the data is copied from original forms processed at the observatory; therefore it should be regarded as preliminary.
Authors
J.B. Townshend, J.E. Papp, M.J. Moorman, S.P. Tilton

Preliminary catalog of earthquakes in northern Imperial Valley, California, January 1, 1977 to March 31, 1977 Preliminary catalog of earthquakes in northern Imperial Valley, California, January 1, 1977 to March 31, 1977

The northern section of the Imperial Valley region in Southern California is an area of known geothermal resources and an area of high seismicity. To study in detail the relationship between geothermal areas and earthquakes, the U.S. Geological Survey has been monitoring seismicity in the Imperial Valley with a sixteen station network since 1973. Six new stations were added to the...
Authors
Madeline Schnapp, Gary S. Fuis
Was this page helpful?