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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 21 (1937)

Issue: 3. (March)

First Page: 333

Last Page: 339

Title: Gravity in Southeastern Virginia

Author(s): C. H. Swick (2)


During the summer of 1936, the United States Coast and Geodetic Survey made gravity determinations at 16 stations in Virginia along practically a straight line from the vicinity of Petersburg to the coast southeast of Norfolk. The work was requested by Professors Miller and Ewing of Lehigh University and follows closely a line of seismic determinations made by the latter. The results were reduced by the isostatic method and a profile of isostatic anomalies was thus obtained. The observed values of gravity and other essential data for the stations are given in a table and the results are discussed briefly. The gradual downward slope of the gravity profile toward the east corresponds approximately with the slope of the basement rocks but is somewhat steeper than would be ex ected from this cause alone unless a very low density is assumed for the overlying material.

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