West Clearwater, Quebec impact structure. I - Field geology, structure and bulk chemistry. II - PetrologyA field study at the 30-km-diameter West Clearwater impact crater was carried out during the summer of 1977 to identify the nature of the flow of impact melt and less shocked debris during the excavation stage of the cratering process. The present paper investigates: (1) comparisons with other impact craters and lunar samples; (2) generation and emplacement mechanisms of impact melts and associated clastic debris; and (3) the geometry of the transient cavity and the pristine morphology of the crater.
Document ID
19790055232
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Simonds, C. H. (Northrop Services, Inc. Lunar Curatorial Laboratory, Houston, Tex., United States)
Phinney, W. C. (NASA Johnson Space Center Geology Branch, Houston, Tex., United States)
Mcgee, P. E. (Northrop Services, Inc. Houston, TX, United States)
Cochran, A. (Lockheed Electronics Co., Inc. Houston, Tex., United States)