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kerogen |
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kerogenor kerogen shales or kerogenitesComplex mixture of compounds with large molecules containing mainly hydrogen and carbon but also oxygen, nitrogen, and sulfur. Kerogen is a precursor of petroleum and the organic component of oil shales. It is waxy and insoluble in water; upon heating, it breaks down into recoverable gaseous and liquid substances resembling petroleum. It consists of compacted organic material, such as algae and other low plant forms, pollen, spores and spore coats, and insects. kerogen [′ker·ə·jən] (geology) The complex, fossilized organic material present in sedimentary rocks, especially in shales; converted to petroleum products by distillation. Also known as kerabitumen; petrologen. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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between about 1500 and 4000 m depending on kerogen type and geothermal history, with a distribution maximum of about 2000 to 3000 m (Hunt, 1996). Anders, Elemental carbon in sediments: determination and isotopic analysis in the presence of kerogen, Geochim. In a previously unrecognized phenomenon, microorganisms found in Kentucky shale are eating the carbon locked within the rocks' kerogen (159: 198). |
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