| Abstract: | Orbital photographs taken at low-Sun illumination during both the Apollo 15 (ref. 30-14) and Apollo 17 missions have provided excellent data on the lava flows in the southwestern Mare Imbrium. These photographs have been used recently to present a detailed photogeologic evaluation of these flows and their role in mare volcanism of Eratosthenian age in the basin (ref. 30-15). Eruption of these flood basalts apparently took place in at least three major episodes with suggested dates of 3.0 ± 0.4 billion years (phase I), 2.7 ± 0.3 billion years (phase II), and 2.5 ± 0.3 billion years (phase III) using the mare age-dating method described by Soderblom and Lebofsky (ref. 30-16) and recent data by Soderblom and Boyce (ref. 30-17). |
| Genre: | Book chapter |
| ProdID: | 70042557 |
| Citation Author: | Schaber, Gerald G. |
| Citation Contributing Office: | Astrogeology Science Center |
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| Citation End Page: | 30-25 |
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| Citation Language: | English |
| Citation Larger Work Title: | Apollo 17 preliminary science report |
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| Citation Phsyical Description: | 9 p. |
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| Citation Publisher: | National Aeronautics and Space Administration |
| Citation Series: | NASA SP |
| Citation Series Code: | |
| Citation Series Number: | 330 |
| Citation Search Results Text: | Volcanic studies: Part E: Eratosthenian volcanism in Mare Imbrium: source of youngest lava flows; 1973; Book chapter; 330; Federal Government Series; Apollo 17 preliminary science report; Schaber, Gerald G. |
| Citation Start Page: | 30-17 |
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| Citation Year: | 1973 |
| Type: | citation/reference |
| Text: | Volcanic studies: Part E: Eratosthenian volcanism in Mare Imbrium: source of youngest lava flows; 1973; Book chapter; 330; Federal Government Series; Apollo 17 preliminary science report; Schaber, Gerald G. |
| 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 |
