Wüst, Raphael A.J., and Bustin, R Marc (2003) Kerogen. In: Middleton, Gerard V., Church, Michael J., Coniglio, Mario, Hardie, Lawrence A., and Longstaffe, Frederick J., (eds.) Encyclopedia of Sediments and Sedimentary Rocks. Encyclopedia of Earth Sciences Series . Kluwer Academic Publishers, Dordrecht, The Netherlands, pp. 400-403.

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Abstract

[Extract] Kerogen is the solid, high molecular-weight fraction of sedimentary organic matter (OM) that is insoluble in organic solvents (e.g. chloroform) as oppoosed to the soluble fraction called bitumen. Kerogen is a macromolecule of condensed cyclic nuclei linked by heteroatomic bonds or aliphatic chains. The importance of differentiating the soluble and insoluble fractions of OM in standard organic solvents is based on the origin and formation of petroleum in sediments. The soluble fraction contains "free" hydrocarbons (HC) formed during geological processes, whereas the insoluble fraction has large proportions that are liable to form HCs (Durand, 1980). The insoluble nature is linked to condensation of OM and thus represents polycondensed or polymerized states of OM in contrast to the biogenic polymers of the living matter.

Item ID:	26197
Item Type:	Book Chapter (Research - B1)
ISBN:	978-1-4020-0872-6
Date Deposited:	16 May 2013 00:49
FoR Codes:	04 EARTH SCIENCES > 0402 Geochemistry > 040204 Organic Geochemistry @ 100%
SEO Codes:	85 ENERGY > 8503 Preparation and Production of Energy Sources > 850304 Oil and Gas Refining @ 100%
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