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Generalized Thermal Maturity Map of Alaska


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File Modification Date
2013-05-16 14:06:24


Alska is a complex amalgamation of tectonic blocks with diverse histories. Sedimentary basins that are formed on these blocks both before amalgamation and as a result of collisions between them record the tectonic history of this complex region. Thermal-maturity data-indicators of maximum burial temperatures-provide important constraints both on basin evolution and on terrane amalgamation. To help elucidate these relations, and to provide constraints for hydrocarbon assessments, the U.S. Geological survey (USGS) has compilied thermal-maturity data from Alaska for many decades. This report is a digital release of our current understanding of thermal-maturity patters in Alaska.


Point of Contact :
Mark Johnsson
Process Contact :
Jennifer Lenz
Distributor :
U.S. Geological Survey Information Services
Metadata Contact :
Peter N Schweitzer
Originator :
Mark J. Johnsson, David G. Howell

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24.96 KB application/fgdc+xml


The files in this directory are those that were used to create the Generalized Thermal Maturity Map of Alaska (USGS Miscellaneous Investigations Map I-2494), published in 1996. These files are necessary for importing the map in digital form into a Geographical Information System. Output files in several formats also are included in this directory; these can be used any time a digital version of the complete map is needed.The map is based, in large part, on the vitrinite-reflectance (VR) and conodont color-alteration-index (CAI) data in USGS Open-File Report 92-409, an updated version of which also is included on this CD-ROM.
PDF version of Alaska Thermal Maturity Map
PDF version of Alaska Thermal Maturity Map




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Added to Sciencebase on Sat Nov 16 13:16:41 MST 2013 by processing URL <b>metadata.xml</b> in item <a href=""></a> <br />

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