A Vendian manganese-bearing basin of the Ikat terrane: Formation settings and provenance areas.

Authors :: Shkolnik, S.
Maslov, A.
Letnikova, E.
Buyantuev, M.
Reznitskii, L.
Barash, I.
Source :: Doklady Earth Sciences. Jul2017, Vol. 475 Issue 1, p739-742. 4p.
Publication Year :: 2017
Abstract: The results of geochemical, mineralogical, and isotope (U-Pb and Sm-Nd) studies of metasedimentary manganese-bearing rocks from the Itantsa Formation of the Ikat terrane are presented. It is found that the carbonate-effusive-shale complex of the Itantsa Fm. formed under the continental margin environment, with volcanic activity accompanying sedimentation, in the interval of 650-540 Ma ago. [ABSTRACT FROM AUTHOR]

Subjects :: *GEOLOGICAL formations
*PROVENANCE (Geology)
*GEOCHEMISTRY
*MINERALOGY
*ISOTOPIC analysis
*SEDIMENTARY basins
*MANGANESE
*SEDIMENTATION & deposition

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