Physics
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmgp31a0075s&link_type=abstract
American Geophysical Union, Fall Meeting 2005, abstract #GP31A-0075
Physics
0920 Gravity Methods (1219), 1219 Gravity Anomalies And Earth Structure (0920, 7205, 7240), 5420 Impact Phenomena, Cratering (6022, 8136)
Scientific paper
In the August of 2001 we conducted a gravity survey of the Weaubleau (pronounced Wah-blow), MO quadrangle (located approximately 90 km north of Springfield). The gravity data were collected using a LaCoste Romberg Model D gravimeter with position and elevation data collected by a Trimble GPS Pathfinder Pro XRS receiver. Elevation data were checked against the USGS topographic data, using DeLorme map software. A total of one hundred and ten stations were occupied. These data are reduced and presented as free air and Bouger gravity maps of the Weaubleau quadrangle. This area has proven interesting because of an intense deformation of Mississippian and older formations whereas Pennsylvanian formations, which unconformably overly these, are largely undeformed. The cause of this deformation has alternately been attributed to meteorite impact, cryptocrystalline volcanic disturbance or widespread horizontal compression. We look for features having circular symmetry which would support an impact origin, or having a preferred orientation, which would support the compression origin.
Shoberg Tom
Stoddard Paul R.
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