Geologic contacts

Junctions of two different rock formations varying by type or age of rock, including faults, unconformities, and bedding planes.
This category is also used for contacts (geologic).
Subtopics:
Unconformities (2 items)
Related topics:

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Seismotectonic maps in the vicinity of the lower Wabash Valley, Illinois, Indiana, and Kentucky - Digital Spatial Database: Structure contours on Cambrian-Precambrian unconformity

This cover contains structure contours of the elevations of the unconformity at the Cambrian-Precambrian boundary. These data were contributed by Glenn Bear of Indiana University as part of the work on his doctoral thesis. The southern part of the map wa

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Seismotectonic maps in the vicinity of the lower Wabash Valley, Illinois, Indiana, and Kentucky - Digital Spatial Database: Structure contours on Cambrian-Precambrian unconformity

This cover contains structure contours of the elevations of the unconformity at the Cambrian-Precambrian boundary. These data were contributed by Glenn Bear of Indiana University as part of the work on his doctoral thesis. The southern part of the map was

Info