Composition and formation settings of the siliceous-volcanogenic complexes of the Nizhneussuriisk segment, Kiselevka-Manoma terrane, West Sikhote Alin

This paper reports new data on the mineralogical-petrographical composition, genetic types of sedimentary rocks, and geochemical features of the volcanic rocks of the Snarsky area of the Nizhneussuriisk segment of the Kiselevka-Manoma accretionary complex, which is developed on the right bank of the...

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Bibliographic Details
Published in:Russian journal of Pacific geology 2010-08, Vol.4 (4), p.289-303
Main Authors: Filippov, A. N., Govorov, G. I., Chashchin, A. A., Punina, T. A.
Format: Article
Language:English
Subjects:
Basalt
Conglomerates
Earth and Environmental Science
Earth Sciences
Geochemistry
Geology
Geophysics
Jurassic
Mineralogy
Petrology
Sedimentary geology
Sedimentary rocks
Volcanic rocks
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Summary:This paper reports new data on the mineralogical-petrographical composition, genetic types of sedimentary rocks, and geochemical features of the volcanic rocks of the Snarsky area of the Nizhneussuriisk segment of the Kiselevka-Manoma accretionary complex, which is developed on the right bank of the lower reaches of the Ussuri River. The Middle Jurassic-Aptian sedimentary rocks of the area are represented by pelagic radiolarian cherts, semipelagic siliceous-clayey deposits, subordinate shallow limestones, volcanomictic conglomerates, and turbidite sandstones. The basalts of the area are represented by alkaline basalts resembling within-plate ocean-island basalts and N-MORB-type tholeiitic basalts. Rock associations of two physicogeographical and geodynamic settings are distinguished: the pelagic setting with within-plate alkaline volcanic rocks and the hemipelagic one with volcanic edifices of spreading basalts.
ISSN:1819-7140
1819-7159
DOI:10.1134/S1819714010040020