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Emplacement Depths and Exhumation of Mesozoic Granitoids Responding to Lithospheric Destruction in the Jiaodong Peninsula, North China Craton
Author(s) -
DOU Jingzhao,
ZHANG Huafeng,
CHEN Fukun
Publication year - 2017
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.13194
Subject(s) - craton , geology , mesozoic , china , peninsula , geochemistry , shandong peninsula , lithosphere , paleontology , earth science , tectonics , physical geography , archaeology , geography , structural basin
The North China Craton (NCC) has experienced lithospheric destruction in Mesozoic accompanied with crustal exhumation. Fission track or (U-Th)/He dating of zircon and apatite for the Mesozoic granitoids in the western Jiaodong Peninsula has been done to reveal history of the crustal uplift (Yang et al., 2016; Sun et al., 2017; Zhang et al., 2017). However, the results solely record the low temperature stage and can reconstruct young thermal history. Widespread plutons exposed at the surface imply apparent exhumation has happened before, nevertheless, the specific timing, amount and rate of exhumation are unknown. Multiple-stage Mesozoic granitoids exposed in the Jiaodong Peninsula provide a compelling case to reveal the crustal exhumation process. In this paper, we use the Al-in-amphibole barometers to estimate emplacement depths of Mesozoic granitoids and to build the exhumation history and mechanism in combination with previous reported mineral Ar-Ar isotopic data.