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shale
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shale

Fine-grained and finely layered sedimentary rock composed of silt and clay. It is a weak rock, splitting easily along bedding planes to form thin, even slabs (by contrast, mudstone splits into irregular flakes). Oil shale contains kerogen, a solid bituminous material that yields petroleum when heated.
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She chose amino acids as a proxy for organic material because the anomalous sulfur isotopes often come from sedimentary rock, black shale, which also contains abundant mature kerogen - a mixture of organic compounds.
Origin of sulfur in rocks point to oxygen-rich atmosphere 2.4 billion ... by Asian News International
Dembicki [30] examined the effect of various minerals on determination of kinetic parameters for source rock, by pyrolyzing mixtures of sedimentary minerals varying the concentration of kerogen isolated from Kimmeridgian black shale.
Study of the kinetics and mechanisms of thermal decomposition of ... by Aboulkas, A.; El Harfi, K. / Oil Shale
DNI, Stock Forum) Monday announced a NI-43-101 compliant Technical Report for its 100% held Alberta SBH polymetallic black shale property.
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