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Combustible shales and sapropelic-humic coals of the Verkhne-Tutonchana deposit of the Tunguska Basin

Journal Article · · Solid Fuel Chem. (Engl. Transl.); (United States)
OSTI ID:5369633
Results of an experimental study are presented in which combustible shales and sapropelic-humic coals of the Verkhne-Tutonchana deposit of the Tonguska basin, USSR have been characterized. Details of the chemical and petrographic compositions of the shales and coals are given. The conditions of their formation are discussed. According to petrographic and chemical results, the initial material of the organic matter of the combustible shales consisted mainly of the simple planktonic algae and of the highly organized benthic algae representing the plant benthos. The predominanting mineral component of the combustile shales is a clayey substance, and carbonates, mainly calcite, pyrite in the form of spherical bodies, and isolated grains of quartz are found. The semimatte coals forming beds among the combustible shales belong to the saprogelitolites according to their microcomponent composition and chemical characteristics. 4 refs.
OSTI ID:
5369633
Journal Information:
Solid Fuel Chem. (Engl. Transl.); (United States), Journal Name: Solid Fuel Chem. (Engl. Transl.); (United States) Vol. 15:3; ISSN SFCHD
Country of Publication:
United States
Language:
English