| 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). |
| Genre: | Book chapter |
| ProdID: | 70042551 |
| Citation Author: | Wilhelms, Don E. |
| Citation Contributing Office: | Astrogeology Science Center |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 29-35 |
| Citation Issue: | |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Apollo 17 preliminary science report (NASA SP-330) |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | 7 p. |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | National Aeronautics and Space Administration |
| Citation Series: | NASA SP |
| Citation Series Code: | |
| Citation Series Number: | 330 |
| Citation Search Results Text: | Stratigraphic studies: Part D: geologic map of the northern Crisium region; 1973; Book chapter; 330; Federal Government Series; Apollo 17 preliminary science report (NASA SP-330); Wilhelms, Don E. |
| Citation Start Page: | 29-29 |
| Citation Volume: | |
| Citation Year: | 1973 |
| Type: | citation/reference |
| Text: | Stratigraphic studies: Part D: geologic map of the northern Crisium region; 1973; Book chapter; 330; Federal Government Series; Apollo 17 preliminary science report (NASA SP-330); Wilhelms, Don E. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DOCUMENT): | http://www.hq.nasa.gov/alsj/a17/a17psr.html |
| Date Other: | Tue, 1 Jan 2013 00:00 -0600 |
| Publisher: | National Aeronautics and Space Administration |
