Whole rock geochemistry and Sr isotopic compositions of Phanerozoic sedimentary rocks in the Inner Zone of the Southwest Japan Arc

Autor:	Barry Roser, Takuji Hamamoto, J. Ishioka, Teruyoshi Imaoka, Masaki Yuhara, Yoshinobu Kawano, Morito Akiyama, Yasutaka Hayasaka, Toshiyuki Ikawa, Hiroo Kagami
Rok vydání:	2006
Předmět:	Igneous rock Basement (geology) Metamorphic rock Phanerozoic Geochemistry Trace element Geology Sedimentary rock Mafic Petrology Terrane
Zdroj:	Gondwana Research. 9:126-141
ISSN:	1342-937X
DOI:	10.1016/j.gr.2005.06.013
Popis:	Pre-Cretaceous metasedimentary rocks occurring in the Inner Zone of the Southwest Japan Arc can be divided into three major groups, namely, high P/T metamorphic (Renge and Suo belts), low P/T metamorphic (Hida-Oki, Ryoke and Higo belts), and accretionary terranes (Akiyoshi, Maizuru, Mino-Tamba, and Ashio belts). Major and trace element compositions of most of the sedimentary rocks are typical of relatively mature sedimentary rocks, although abundances of ferromagnesian elements also suggest the presence of a significant mafic to intermediate igneous component. The sedimentary rocks with older Nd model ages (> 2.0 Ga) have high eSr values and major and trace element geochemical signatures typical of mature sediments, whereas those with younger model ages (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d1b76e741ed6b148924cd875470d475d https://doi.org/10.1016/j.gr.2005.06.013 Zobrazit plný text záznamu Full Text from ScienceDirect