torbanite

(redirected from boghead coal)
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torbanite

(ˈtɔːbəˌnaɪt)
n
(Geological Science) a variety of coal from which paraffin oil can be derived. Also called: boghead coal
References in periodicals archive ?
One specimen has a petrographic composition typical of a cannel shale, in which sporinite is the most abundant organic constituent; the other is characterized by Botryococcus-alginite bodies typical of a boghead coal. Nearby exposures of Tertiary coal are generally woody and are not known to contain boghead layers or cannel shales.
Previous examinations of coal artifacts from the Bache Peninsula region of eastern Ellesmere Island, including the analysis of beads and a possible labret, showed that the artifacts consisted of a variety of coal and organic-rich shale types (lignite, boghead coal, cannel shale), some of which could be traced to nearby outcrop exposures (Kalkreuth et al., 1993a).
Petrographic analysis showed that the specimen consists almost entirely of algal remains, typical for a boghead coal. The algal remains resemble Botryococcus-type algae (Fig.