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Rock-eval pyrolysis, vitrinite reflectance, and kerogen microscopy results from Miocene carbonaceous mudstones and coals in outcrop, McGrath Quadrangle, southwestern Alaska

Dates

Publication Date
Start Date
2002
End Date
2015
File Modification Date
2015-04-28 15:51:00

Citation

LePain, D.L., and Kirkham, Russell, 2015, Rock-eval pyrolysis, vitrinite reflectance, and kerogen microscopy results from Miocene carbonaceous mudstones and coals in outcrop, McGrath Quadrangle, southwestern Alaska: Alaska Division of Geological & Geophysical Surveys, http://dx.doi.org/10.14509/29406.

Summary

The Cenozoic Holitna basin is a gravity-defined feature that sits astride the Denali-Farewell fault zone in southwestern Alaska. The basin corresponds to a gravity low in excess of -40 milligals (mGals). No outcrops exist within the footprint of the gravity low and no subsurface data are available; consequently, the stratigraphy and age of its fill are unknown. The Alaska Division of Geological & Geophysical Surveys (DGGS) investigated the shallow gas potential of the basin during the summers of 2000 and 2002 by studying Tertiary coal-bearing rocks exposed along the Denali-Farewell fault zone to the northeast of the basin in the southern McGrath Quadrangle as an outcrop analog to the subsurface stratigraphy of the basin. We visited [...]

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Purpose

This dataset provides source-rock characterization results (Rock-Eval pyrolysis, vitrinite reflectance measurements, and visual kerogen analysis) from outcrop exposures along Windy Fork Middle Fork River.

Map

Communities

  • ReSciColl Archive

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Additional Information

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Type Scheme Key
processingUrl http://www.dggs.alaska.gov/metadata/RI2015-3.xml

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