Seismotectonic maps in the vicinity of the lower Wabash Valley, Illinois, Indiana, and Kentucky - Digital Spatial Database: Geophysical lineaments

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Description Lines in this cover show lineaments or boundaries of large lineaments interpreted from gravity and magnetic data. These lineaments are thought to reflect structures in the crust that may be related to earthquake generation or control of earthquake locatio
Originators Rhea, Susan
Publication U.S. Geological Survey Open-File Report 97-0681

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States or counties


boundaries of large lineaments

Label Definition
NAME name of geophysical lineament


locations of boundaries or locations of geophysical lineaments

Label Definition
SYMBOL symbol used to draw feature on map
NAME name of lineament