Detrital Zircon U-Pb Geochronology and Hf Isotope Geochemistry of the Hayang Group, SE Korea and the Himenoura and Goshoura Groups, SW Japan: Signs of Subduction-Related Magmatism after a Long Resting Period
Abstract:There was a hiatus in magmatism in Korea and Japan, located on the eastern continental margin of Asia, during a period of about 40 Ma from 160 Ma to 120 Ma. The cause of the resumption of magmatism since then is not yet well understood. In this study, we analyzed the Hf isotope composition of detrital zircons in the Cretaceous sediments of Korea (Hayang Group) and Japan (Goshoura and Himenoura groups) to investigate the tectonic evolution of eastern Asia in the Early Cretaceous period. εHf(t) in Cretaceous zir… Show more
“…The provenance of siliciclastic detritus utilizing zircon age records [17] is particularly valuable for constraining the sedimentation age of sandstone sequences affected by a synchronous volcanic activity, as shown by Fornelli et al [18]. The huge potential of detrital zircon ages was highlighted by Ershova et al [19] in their study of Devonian sandstones containing zircons connected to a hidden coeval magmatism successively covered by sedimentary events, as well as by Lee et al [20] in a subduction context.…”
This Special Issue was conceived with the aim of contributing to disclosure of the applications of U-Pb dating and zircon chemistry for deciphering the growth and the evolution of the continental crust [...]
“…The provenance of siliciclastic detritus utilizing zircon age records [17] is particularly valuable for constraining the sedimentation age of sandstone sequences affected by a synchronous volcanic activity, as shown by Fornelli et al [18]. The huge potential of detrital zircon ages was highlighted by Ershova et al [19] in their study of Devonian sandstones containing zircons connected to a hidden coeval magmatism successively covered by sedimentary events, as well as by Lee et al [20] in a subduction context.…”
This Special Issue was conceived with the aim of contributing to disclosure of the applications of U-Pb dating and zircon chemistry for deciphering the growth and the evolution of the continental crust [...]
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