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“coal”
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“coal”
A type of coal arising from accumulations of plant debris moved from their place of growth and deposited elsewhere: In her book on geology, Jill learned that allochthonous coal originated from a mass of plant remains transported from the place where they grew to somewhere else.
This entry is located in the following unit:
Geology or Related Geological Terms +
(page 2)
metallurgical coal
A term for coking coal and pulverized coal used in making metals and alloys.
This entry is located in the following unit:
Metallurgy Topics or Metal Technology +
(page 2)