UNUSUAL DEVONIAN COAL: A NEW TYPE OF JET
I.Kh. Shumilov
Institute of Geology, Komi Science Centre, ul. Pervomaiskaya 54, Syktyvkar, 167982, Russia
Keywords: Jet, fusain, Devonian, continental sediments, Middle Timan region
Abstract
A new type of jet from continental Devonian sediments is described. The substrate for gagatization was fragments of Archaeopteris plants, whose burials in sandstone strata are characterized by a kind of spheroidal weathering of organic matter; the material is completely fusainized. This type of jet combines the properties of classical jet and inertinite. The new type of jet was named tsilmanite, after the place of its discovery.
|
