Depositional and surface exposure history of the Shorty Crater core 74001/2 - FMR and magnetic studiesSurface exposure (maturity) indices and concentrations of FeO and metallic iron were determined at 0.5-cm intervals of the Apollo 17 core section, which sampled a pyroclastic deposit on the rim of Shorty Crater. The determinations showed that all of the soil in the core is extremely immature. An exposure history of the core is proposed: accumulation (about 3.6 billion years ago), shallow burial (during the first 20 million years), deep burial (till about 10-15 million years ago), followed by excavation (10-15 million years ago), and in situ reworking (till the present).
Document ID
19790055200
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Morris, R. V. (NASA Johnson Space Center Houston, Tex., United States)
Gose, W. A. (Texas, University Austin; Texas, University, Marine Science Institute, Galveston, Tex., United States)
Lauer, H. V., Jr. (Lockheed Electronics Co., Inc. Houston, Tex., United States)