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

Dates

Publication Date
Start Date
1995
End Date
1997
File Modification Date
2013-05-16 14:07:49

Summary

Lines in this cover show lineaments or boundaries of largelineaments interpreted from gravity and magnetic data. Theselineaments are thought to reflect structures in the crust that may berelated to earthquake generation or control of earthquake location.The broad Paducah gravity lineament trends southeast across the SW cornerof the map area. Hildenbrand and others (1996) have interpreted that thelineament represents numerous upper-crustal mafic intrustions.Within and west of the map area, small earthquakes are aligned withthe NE edge of the lineament and their abundance decreases abruptlyNE across the edge.The Commerce geophysical lineament trends NE across the map area.Langenheim and Hildenbrand (1997) attribute the lineament to a [...]

Contacts

Point of Contact :
Susan Rhea
Process Contact :
Susan Rhea
Distributor :
Susan Rhea
Metadata Contact :
Peter N Schweitzer
Originator :
Rhea, Susan

Attached Files

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lineament.xml
Potential Metadata Source

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15.4 KB application/fgdc+xml

Purpose

The data was generated to help in understanding the seismotectonichazards in the vicinity of the lower Wabash Valley. This datacomplements similar data collected in the vicinity of New Madrid, MO(US Geological Survey Open-File Report 95-0574, available via ftp at<http://pubs.usgs.gov/of/1995/ofr-95-0574/>)

Additional Information

Identifiers

Type Scheme Key
processingUrl http://sciencebase.org/metadata/geo-nsdi.er.usgs.gov/metadata/open-file/97-681/lineament.xml

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