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An Integrated Geophysical and Geological Study of the Tectonic Framework of the 38th Parallel Lineament in the Vicinity of Its Intersection with the Extension of the New Madrid Fault Zone

Technical Report ·
DOI:https://doi.org/10.2172/6468529· OSTI ID:6468529
 [1];  [1];  [2];  [3]
  1. Purdue Univ., West Lafayette, IN (United States)
  2. Univ. of Texas at El Paso, TX (United States)
  3. Univ. of Pittsburgh, PA (United States)
Extensive gravity and aeromagnetic surveys have been conducted in critical areas of Kentucky, Illinois, and Indiana centering around the intersection of the 38th Parallel Lineament and the extension of the New Madrid Fault Zone. Available aeromagnetic maps have been digitized and these data have been processed by a suite of computer programs developed for this purpose. Seismic equipment has been prepared for crustal seismic studies and a 150 km long seismic refraction line has been observed along the Wabash River Valley Fault System. Preliminary basement rock and configuration maps have been prepared based on studies of the samples derived from basement drill holes. Interpretation of these data are at a preliminary stage, but studies to this date indicate that the 38th Parallel Lineament features extend as far north as 39°N and a subtle northeasterly striking magnetic and gravity anomaly cuts across Indiana from the southwest corner of the state, roughly on strike with the New Madrid Seismic Zone.
Research Organization:
Purdue Univ., West Lafayette, IN (United States)
Sponsoring Organization:
USNRC
OSTI ID:
6468529
Report Number(s):
NUREG/CR--0449
Country of Publication:
United States
Language:
English