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Meanings of bituminous shale in English

Russian
горючий сланец
Portuguese
xisto betuminoso
Spanish
lutita bituminosa
Catalan
pissarra bituminosa
Wikidata

Organic-rich fine-grained sedimentary rock containing kerogen.

горючий сланец
Usage of bituminous shale in English
1
A SOURCE below, usually a bituminous shale, from whose organic matter they have been derived by slow change.
The Elements of Geology
2
These differences in constitution have originated in the differences in the bituminous shales from which the petroleum, ozokerite, etc., have been derived.
Scientific American Supplement, No. 401, September 8, 1883