Characteristics of ejecta and alluvial deposits at Meteor Crater, Arizona and Odessa Craters, Texas: Results from ground penetrating radar
Abstract
Previous ground penetrating radar (GRP) studies around 50,000 year old Meteor Crater revealed the potential for rapid, inexpensive, and non-destructive sub-surface investigations for deep reflectors (generally greater than 10 m). New GRP results are summarized focusing the shallow sub-surfaces (1-2 m) around Meteor Crater and the main crater at Odessa. The following subject areas are covered: (1) the thickness, distribution, and nature of the contact between surrounding alluvial deposits and distal ejecta; and (2) stratigraphic relationships between both the ejecta and alluvium derived from both pre and post crater drainages. These results support previous conclusions indicating limited vertical lowering (less than 1 m) of the distal ejecta at Meteor Crater and allow initial assessment of the gradational state if the Odessa craters.
- Publication:
-
A Bibliography of Planetary Geology and Geophysics Principal Investigators and their Associates, 1990 - 1991
- Pub Date:
- June 1991
- Bibcode:
- 1991pggp.rept..368G
- Keywords:
-
- Alluvium;
- Cratering;
- Craters;
- Meteorite Craters;
- Planetary Surfaces;
- Dielectric Properties;
- Ejecta;
- Meteorite Collisions;
- Radar Data;
- Stratigraphy;
- Lunar and Planetary Exploration