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Photogeology: Part A: relative ages of some near-side and far-side terra plains based on Apollo 16 metric photography

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Abstract

The materials of most light or terra plains predate the lunar maria and postdate the Imbrian event. In the vicinity of the Imbrium Basin, these materials have been called the Cayley Formation (ref. 29-3) but because of the subtle diversity of the terra plains over the near side, Whilhelms and McCauley (ref. 29-4) simply called these materials Imbrian plains (Ip). The age relationships between the light plains and the Fra Mauro Formation are of principal importance in placing the Apollo 14, 15, and 16 samples in a regional context and in understanding the transitional period between the enhanced cratering rate of pre-Imbrian time and the comparatively quiescent period of impact cratering since the generation of mare surfaces.

Additional Publication Details

Publication type:
Book chapter
Publication Subtype:
Book Chapter
Title:
Photogeology: Part A: relative ages of some near-side and far-side terra plains based on Apollo 16 metric photography
Series number:
315
Year Published:
1972
Language:
English
Publisher:
National Aeronautics and Space Administration
Publisher location:
Washington, D.C.
Contributing office(s):
Astrogeology Science Center
Description:
4 p.
Larger Work Type:
Report
Larger Work Subtype:
Federal Government Series
Larger Work Title:
Apollo 16 preliminary science report (NASA SP 315)
First page:
29-3
Last page:
29-6
Other Geospatial:
Moon