Characterization of the Marquez Dome buried impact crater using gravity and magnetic data

Details Characterization of the Marquez Dome buried impact crater using gravity and magnetic data Characterization of the Marquez Dome buried impact crater using gravity and magnetic data

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993lpi....24.1533w&link_type=abstract

In Lunar and Planetary Inst., Twenty-Fourth Lunar and Planetary Science Conference. Part 3: N-Z p 1533-1534 (SEE N94-20636 05-91

Mathematics

Logic

1

Contours, Craters, Domes (Structural Forms), Gravity Anomalies, Magnetic Anomalies, Position (Location), Rims, Earth Planetary Structure, Geomagnetism, Geomorphology, Magnetic Signatures, Mapping, Structural Basins

Scientific paper

The buried impact crater, Marquez Dome, located in Leon County in east central Texas, is an approximately 15 km diameter structure whose central uplift is now partially exposed due to headward erosion of the post-impact cover. The central uplift is approximately 3 km in diameter and the rocks within it have been uplifted more than 1200 m above their regional level. The crater rim remains buried and previous attempts to determine its location have had to rely on seismic reflection data and geologic well logs. These attempts have been somewhat successful in mapping the extent of the disturbed zone around Marquez Dome, but more limited in their ability to image the shallow buried rim. In an attempt to define accurately the whole Marquez Dome structure and assist in the selection of drilling sites, a geophysical investigation involving gravity and magnetic data over the central uplift and the surrounding area has been undertaken.

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