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Dicarboxylic acids generated by thermal alteration of kerogen and humic acidsSignificant amounts (up to 2 percent of organic geopolymers) of low-molecular-weight (LMW) dicarboxylic acids (C2-C10) have been detected during thermal alteration (270 C, 2 h) of kerogens and humic acids isolated from young or ancient lithified sediments. Their distribution is characterized by the predominance of oxalic acid followed by succinic, fumaric, and methylsuccinic acids. These acids are probably released by the breakdown of macromolecular structures, which have incorporated biogenic organic compounds, including diacids, during early digenesis in sediments. Because of their reactivity, LMW diacids may play geochemically important roles under natural conditions.
Document ID
19880039217
Document Type
Reprint (Version printed in journal)
Authors
Kawamura, Kimitaka (California Univ. Los Angeles, CA, United States)
Kaplan, I. R. (California, University Los Angeles, United States)
Date Acquired
August 13, 2013
Publication Date
December 1, 1987
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 51
ISSN: 0016-7037
Subject Category
GEOPHYSICS
Funding Number(s)
CONTRACT_GRANT: NGR-05-007-221
Distribution Limits
Public
Copyright
Other