Late Jurassic (Tithonian) radiolarians from a clastic unit of the Khabarovsk complex (Russian Far East): Significance for subduction accretion timing and terrane correlation |
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| Authors: | Sergei Zyabrev & Atsushi Matsuoka |
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| Institution: | Department of Earth Sciences, Faculty of Science, University of Hong Kong, Pokfulam Road, Hong Kong, China and,;Department of Geology, Faculty of Science, Niigata University, Niigata 950-2181, Japan;Email: <;> |
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| Abstract: | A well-preserved radiolarian fauna from a clastic unit of the Khabarovsk accretionary complex (southern part of the Badzhal accretionary wedge terrane in the Russian Far East) is assigned to the basal part of the Pseudodictyomitra carpatica zone. The age of the fauna is most likely late Tithonian. This is the first reliable dating of the clastic unit and makes it possible to constrain the timing of subduction accretion in the Badzhal terrane. The Khabarovsk complex is correlated chronologically with the Bikin and Samarka terranes (Russian Far East), Mino, Southern Chichibu and North Kitakami terranes (Japan), and Nadanhada terrane (northeast China). |
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| Keywords: | circum-Japan Sea regions Khabarovsk complex radiolaria Russian Far East subduction–accretion terrane correlation Tithonian |
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