Mathematics – Logic
Scientific paper
Jun 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pggp.rept..384p&link_type=abstract
In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990 p 384-386 (SEE N92-10728 01-91)
Mathematics
Logic
Australia, Cretaceous Period, Data Acquisition, Geological Surveys, Gravitation, Gravitational Fields, Hypervelocity Impact, Mountains, Anomalies, Data Bases, Earth Crust, Outcrops, Shales
Scientific paper
The Mt. Toondina impact structure is located in northern South Australia, about 45 km south of the town of Oodnadatta. Only the central uplift is exposed. The outcrops at Mt. Toondina reveal a remarkable structural anomaly surrounded by a broad expanse of nearly flat-lying beds of the Bulldog Shale of Early Cretaceous age. A gravity survey was undertaken in 1989 to determine the diameter of the impact structure, define the form of the central uplift, and understand the local crustal structure. Data were collected along two orthogonal lines across the structure. In addition to the profiles, a significant number of measurements were made on and around the central uplift. The 1989 gravity data combined with 1963 gravity data and the seismic reflection data provide an excellent data base to interpret the subsurface structure of the Mt. Toondina feature.
Plescia Jeffrey B.
Shoemaker Carolyn S.
Shoemaker Eugene M.
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