2026-10-15T08:30:59Z https://oai.datacite.org/oai

doi:10.1594/pangaea.753215 2024-07-21T04:24:50Z PANGAEA PANGAEA.REPOSITORY

Composition of the argillite sequence, continental slope of the Sea of Japan Vashchenkova, N G Gorovaya, M T Mozherovsky, A V PANGAEA 2009 Issued: 2009 Archive of Ocean Data (ARCOD) The argillite sequence located at the base of the sedimentary cover on the continental slope of the Sea of Japan was studied by petrographic, palynological, and X-ray diffraction methods. Two spores-pollen complexes were distinguished in it: the Late Oligocene reflecting cooling and the Early Miocene corresponding to initiated warming. Data obtained indicate that the sequence is composed of terrigenous silty-clayey sediments that accumulated in shallow coastal-marine settings. The global sea-level rise at the Early-Middle Miocene transition, combined with regional tectonic processes, determined basin's deepening, owing to which the argillite sequence was overlain by a thick layer of Middle Miocene diatomaceous-clayey sediments. Due to tectonic movement along existing faults in the terminal Late Miocene, the argillite sequence occurring initially at depths of at least 400-500 m was locally exhumed to the basin bottom. Supplement to: Vashchenkova, N G; Gorovaya, M T; Mozherovsky, A V (2009): Composition and age of the argillite sequence (sedimentary cover of the continental slope, Sea of Japan). Tikhookeanskaya Geologiya, 28(3), 53-63 en Collection Supplementary Publication Series of Datasets application/zip Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode