Geochronology and geochemistry of Late Cretaceous–Paleocene granitoids in the Sikhote-Alin Orogenic Belt: Petrogenesis and implications for the oblique subduction of the paleo-Pacific plate

Abstract

) 'Geochronology and geochemistry of Late CretaceousPaleocene granitoids in the Sikhote-Alin Orogenic Belt : petrogenesis and implications for the oblique subduction of the paleo-Pacic plate. ', Lithos.,[266][267] Further information on publisher's website: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT

Origin of the Yellow Sea: an insight

“…The above reasoning is reinforced by the finding of the younger granitoids in the Russian Far East, South Korea and Southwest Japan (see [2]). As above, Niu et al [1] concluded that the collision of an alien terrane carried by the paleo-Pacific plate with the eastern continental China at ~ 100 Ma jammed the trench and accreted the basement of the Chinese continental shelf (beneath East and South China Seas), resulting in a new plate boundary to the east between the newly accreted Chinese continental shelf and the paleo-Pacific plate (also see [2]].…”

“…As above, Niu et al [1] concluded that the collision of an alien terrane carried by the paleo-Pacific plate with the eastern continental China at ~ 100 Ma jammed the trench and accreted the basement of the Chinese continental shelf (beneath East and South China Seas), resulting in a new plate boundary to the east between the newly accreted Chinese continental shelf and the paleo-Pacific plate (also see [2]]. The lack of granitoids of < ~ 90 Ma in the eastern continental China and the greater Chinese continental shelf region is consistent with the new plate boundary being of transform nature with the paleoPacific plate, whose course of spreading changed from the prior NW direction to NNW (i.e., similar to the age-progressive Emperor Seamount Chain of Hawaiian hotspot origin) because of the trench jam and Pacific plate rotation [1].…”

“…The lack of granitoids of < ~ 90 Ma in the eastern continental China and the greater Chinese continental shelf region is consistent with the new plate boundary being of transform nature with the paleoPacific plate, whose course of spreading changed from the prior NW direction to NNW (i.e., similar to the age-progressive Emperor Seamount Chain of Hawaiian hotspot origin) because of the trench jam and Pacific plate rotation [1]. At this time (< ~ 90 Ma), the northeastern margin of the Eurasian continent (Korea, Japan and Russian Far East) is expected to be in transpressional contact with the NNW moving Pacific plate and the anticipated oblique subduction continued to produce granitoid magmatism despite being less voluminous [2]. This requires that the landmasses of Japanese islands and the Korean Peninsula locate at the active margin of the Eurasian continent as does the Russian Far East.…”

“…Integrated petrology, geochemistry, geochronology and paleomagnetic studies on Mesozoic rocks from eastern China, the Korean Peninsula, Islands of Japan, Russian Far East and basaltic rocks of the Sea of Japan (ODP samples) will be carried out to test the hypothesis and to resolve different interpretations towards verification of tectonic models of the northwestern Pacific in general and the origin and evolution of the Yellow Sea in particular. Elements of the work are currently under consideration by the second author as the continuation of [2] in collaboration with scientists from Korean, Japan and Russia. Fig.…”

“…The most intriguing question in the context of the geological evolution of eastern China since the Mesozoic concerns the nature and origin of the Yellow Sea [1]. In this communication, we briefly discuss our view on the geological origin of the Yellow Sea, which is unfamiliar to many, but is a logical and testable hypothesis thanks to the finding of younger granitoids in the Russian Far East [2]. We discuss the reasoning towards the hypothesis and suggest ways with which to test the hypothesis.…”