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Impact Craters on Venus: What are they Telling Us?
- G. Schaber
- Geology, Physics
- 1 June 1991
Magellan has revealed an ensemble of impact craters on Venus that is unique in many important ways. We have compiled a data base describing the 842 craters on 89% of Venus' surface mapped through…
Global Resurfacing of Venus
- R. Strom, G. Schaber, J. Arkani‐Hamed, M. Toksoz
- Geology
- 1 June 1993
The impact cratering record on Venus is unique among the terrestrial planets. Fully 84% of the craters are in pristine condition, and only 12% are fractured. Remarkably, only 2.5% of the craters and…
Subsurface Valleys and Geoarcheology of the Eastern Sahara Revealed by Shuttle Radar
- J. McCauley, G. Schaber, R. Blom
- GeologyScience
- 3 December 1982
The shuttle imaging radar (SIR-A) carried on the space shuttle Columbia in November 1981 penetrated the extremely dry Selima Sand Sheet, dunes, and drift sand of the eastern Sahara, revealing…
The use of multifrequency and polarimetric SIR-C/X-SAR data in geologic studies of Bir Safsaf, Egypt
- G. Schaber, J. McCauley, C. Breed
- Environmental Science, Geology
- 1 February 1997
Lava Flows in Mare Imbrium: Geologic Evaluation from Apollo Orbital Photography
- G. Schaber
- Geology
- 1973
A study of Apollo photographs indicates that all Eratosthenian age mare deposits in the Imbrium basin consist of extensive lava flows from a single eruptive source region bounded by 18 to 23 N and 28…
Classification and time of formation of Martian channels based on Viking data
- H. Masursky, J. Boyce, A. Dial, G. Schaber, M. E. Strobell
- Geology
- 30 September 1977
Fluviatile and volcanic Martian channels, first discovered on Mariner 9 pictures, have been reexamined by using Viking orbital photography. The superior discrimination of the Viking photographs,…
Martian permafrost features
- M. Carr, G. Schaber
- Geology, Environmental Science
- 30 September 1977
The outgassing history of Mars and the prevailing temperature conditions suggest that ground ice may occur to depths of kilometers over large areas of the planet. The presence of permafrost is also…
Pioneer Venus Radar results: Geology from images and altimetry
- H. Masursky, E. Eliason, G. Schubert
- Geology
- 30 December 1980
Altimetry and radar image data obtained by the Pioneer Venus spacecraft and earth-based radars have provided a first look at the global distribution of topographic relief, regional morphology, and…
Spaceborne Radar Subsurface Imaging in Hyperarid Regions
- C. Elachi, L. Roth, G. Schaber
- Geology, MathematicsIEEE Transactions on Geoscience and Remote…
- 1 July 1984
Imaging data acquired with the Shuttle Imaging Radar (SIR-A) over the hyperarid region of Egypt/Sudan clearly show surface penetration through the sand cover. Even though absorption does occur in the…
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