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Oil Shale

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Encyclopedia of Geochemistry

Part of the book series: Encyclopedia of Earth Sciences Series ((EESS))

Synonyms

Cannel coal; Immature source rock; Kukersite; Lamosite; Marinite; Tasmanite; Torbanite

Definition

Oil shales are fine-grained sedimentary rocks formed in many different depositional environments (terrestrial, lacustrine, marine) containing large quantities of thermally immature organic matter in the forms of kerogen and bitumen . If defined from an economic standpoint, a rock containing a sufficient concentration of oil-prone kerogen to generate economic quantities of synthetic crude oil upon heating to high temperatures (350–600 °C) in the absence of oxygen (pyrolysis ) can be considered an oil shale.

Introduction

The term oil shale is often described as a misnomer, in that the organic component is primarily kerogen, not oil and the mineral matrix is not necessarily clay mineral-rich, but can include a variety of different phases (Miknis and McKay 1983). Oil shales are essentially a type of petroleum source rock, the key differences being that: (1) oil shales have...

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References

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Correspondence to Justin E. Birdwell .

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Birdwell, J.E. (2017). Oil Shale. In: White, W. (eds) Encyclopedia of Geochemistry. Encyclopedia of Earth Sciences Series. Springer, Cham. https://doi.org/10.1007/978-3-319-39193-9_181-1

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  • DOI: https://doi.org/10.1007/978-3-319-39193-9_181-1

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  • Print ISBN: 978-3-319-39193-9

  • Online ISBN: 978-3-319-39193-9

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