NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Astronaut observations from lunar orbit and their geologic significance.To supplement orbital photography and other remotely sensed data, visual observations were made of 15 lunar surface targets during Apollo mission 15. Among the significant results are (1) characterization of the floor material of Tsiolkovsky as no darker than the average (Eratosthenian) mare material, and interpretration of the lineated unit on the crater rim as a rock avalanche; (2) identification of layers on the wall of the crater Picard, which is probably volcanic in origin, (3) explanation of the ray-excluded zone of the crater Proclus as the result of structurally controlled ray shadowing; (4) observation of cinder cones in the Littrow area with dark haloes that probably are composed of pyroclastic deposits; and (5) recognition that the termini of numerous sinuous rilles in Oceanus Procellarum are flooded with younger mare materials that may have covered older terminal deposits.
Document ID
19730034880
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
El-Baz, F.
(Bell Telephone Laboratories, Inc. Washington, D.C., United States)
Worden, A. M.
Brand, V. D.
(NASA Manned Spacecraft Center Houston, Tex., United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1972
Subject Category
Space Sciences
Meeting Information
Meeting: Lunar Science Conference
Location: Houston, TX
Start Date: January 10, 1972
End Date: January 13, 1972
Accession Number
73A19682
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available