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Estimation of porphyrin concentration in the kerogen fraction of shales using high-resolution reflectance spectroscopyAn interpretive model for estimating porphyrin concentration in bitumen and kerogen from spectral reaflectance data in the visible and near-ultraviolet region of the spectrum is derived and calibrated. Preliminary results obtained using the model are consistent with concentrations determined from the bitumen extract and suggest that 40 to 60 percent of the total porphyrin concentration remains in the kerogen after extraction of bitumen from thermally immature samples. The reflectance technique will contribute to porphyrin and kerogen studies and can be applied at its present level of development to several areas of geologic and paleo-oceanographic research.
Document ID
19920036201
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Holden, Peter N.
(Rensselaer Polytechnic Inst. Troy, NY, United States)
Gaffey, Michael J.
(Rensselaer Polytechnic Institute, Troy, NY, United States)
Sundararaman, P.
(Chevron Oil Field Research Co. La Habra, CA, United States)
Date Acquired
August 15, 2013
Publication Date
December 1, 1991
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 55
ISSN: 0016-7037
Subject Category
Geophysics
Accession Number
92A18825
Funding Number(s)
CONTRACT_GRANT: NAGW-642
Distribution Limits
Public
Copyright
Other

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