地质学报（英文版）2007，Vol.81Issue(2)：239-243,5.
SHRIMP Zircon U-Pb Dating of Gabbro and Granite from the Huashan Ophiolite, Qinling Orogenic Belt, China: Neoproterozoic Suture on the Northern Margin of the Yangtze Craton
SHRIMP Zircon U-Pb Dating of Gabbro and Granite from the Huashan Ophiolite, Qinling Orogenic Belt, China: Neoproterozoic Suture on the Northern Margin of the Yangtze Craton
摘要
Abstract
The recently identified Huashan ophiolitic mélange was considered as the eastern part of the Mianliie suture in the Qinling orogenic belt. SHRIMP zircon U-Pb geochronology on gabbro from the Huashan ophiolite and granite intruding basic volcanic rocks indicates crystallization ages of 947±14Ma and 876±17 Ma respectively. These ages do not support a recently proposed Hercynian Huashan Ocean, but rather favor that a Neoproterozoic suture assemblage (ophiolite) is incorporated into the younger (Phanerozoic) Qinling orogenic belt.关键词
SHRIMP/Neoproterozoic/Ophiolite/Huashan/Mianlüe Suture/QinlingKey words
SHRIMP/Neoproterozoic/Ophiolite/Huashan/Mianlüe Suture/Qinling分类
天文与地球科学引用本文复制引用
SHI Yuruo,LIU Dunyi,ZHANG Zongqing,MIAO Laicheng,ZHANG Fuqin,XUE Hongmei..SHRIMP Zircon U-Pb Dating of Gabbro and Granite from the Huashan Ophiolite, Qinling Orogenic Belt, China: Neoproterozoic Suture on the Northern Margin of the Yangtze Craton[J].地质学报（英文版）,2007,81(2):239-243,5.基金项目
This study is financially supported by the National Natural Science Foundation of China (Grant No.40234045, 40473030). （Grant No.40234045, 40473030）
