Инд. авторы:	Fedoseev G.S., Vorontsov A.A., Orekhov A.A.
Заглавие:	Fossil travertines and quasi-travertine in the Minusa basin (West Siberia): structure, composition, and comparative analysis
Библ. ссылка:	Fedoseev G.S., Vorontsov A.A., Orekhov A.A. Fossil travertines and quasi-travertine in the Minusa basin (West Siberia): structure, composition, and comparative analysis // Russian Geology and Geophysics. - 2017. - Vol.58. - Iss. 8. - P.922-934. - ISSN 1068-7971. - EISSN 1878-030X.
Внешние системы:	DOI: 10.1016/j.rgg.2017.07.003; SCOPUS: 2-s2.0-85026896329; WoS: 000407795300004;
Реферат:	eng: We study a carbonate body looking like a classical fossil travertine which was discovered in the Chebaki-Balakhta basin within the Minusa trough (Khakassia, Russia) and called quasi-travertine. It is a thin layer sandwiched between a basalt-dolerite sill and calcareous siltstone. Comprehensive studies of the quasi-travertine and its comparison with Devonian fossil travertines located a few kilometers away in terms of structure and composition have made the basis for its formation model. According to this model, the quasi-travertine has had a two-stage history: deposition and subsequent hydrothermal metasomatism. Laminated limestone coexisting with calcareous siltstone of the Early Devonian Shunet Formation formed during the first stage and then experienced hydrothermal metasomatism with precipitation of secondary calcite, prehnite, and pyrobitumen (kerite). © 2017
Ключевые слова:	sparite; shallow sill; quasi-travertine; prehnite; Minusa basin; fossil travertine; dolerite; basalt;
Издано:	2017
Физ. характеристика:	с.922-934