Stratigraphic studies: Part D: geologic map of the northern Crisium region
By: Don E. Wilhelms
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- Document: Report
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Abstract
Apollo 17 metric photographs (fig. 29-26) provide the best available coverage for geologic interpretation of northern Mare Crisium and the northern Crisium basin. The area was covered previously by low-resolution telescopic and Lunar Orbiter IV photographs and by oblique, high-illumination, or low-resolution photographs from earlier Apollo missions. One region in particular, between Alhazen Crater and longitude 66° E, had previously been covered very poorly. The Apollo 17 photographs provide excellent monoscopic (fig. 29-26) as well as stereoscopic viewing because of the favorably low Sun illuminations (15° to 49°). These new photographic data allow the geology of the basin, the mare, and other nearby terrains to be reevaluated. This reexamination together with data from continuing Moon-wide photogeologic studies and analyses of returned rocks from Apollo landing sites, has produced a simple evolutionary picture of the region, expressed by fewer map units and explained by fewer basic processes than previously thought necessary (refs. 29-35 and 29-45 to 29-48).
| Publication type | Book chapter |
|---|---|
| Publication Subtype | Book Chapter |
| Title | Stratigraphic studies: Part D: geologic map of the northern Crisium region |
| Series number | 330 |
| Year Published | 1973 |
| Language | English |
| Publisher | National Aeronautics and Space Administration |
| Publisher location | Washington, D.C. |
| Contributing office(s) | Astrogeology Science Center |
| Description | 7 p. |
| Larger Work Type | Report |
| Larger Work Subtype | Federal Government Series |
| Larger Work Title | Apollo 17 preliminary science report (NASA SP-330) |
| First page | 29-29 |
| Last page | 29-35 |
| Other Geospatial | Moon |
| Google Analytic Metrics | Metrics page |