山东国土资源2012，Vol.28Issue(4)：1-7,7.
鲁西地区新太古代中期岩浆活动——新甫山与上港等岩体锆石SHRIMPU—Pb定年的证据
Mid Neoarchean Magmatism in Western Shandong Province--Evidence of Zircon SHRIMP U- Pb Dating in Xinfushan and Shanggang Rock
王世进 1万渝生 2杨恩秀 1宋志勇 1王立法 1王伟 3董春艳2
作者信息
- 1. 山东省地质调查院,山东济南250013
- 2. 中国地质科学院地质研究所,北京100037／北京离子探针中心,北京100037
- 3. 中国科学院地质与地球物理研究所,北京100029
- 折叠
摘要
Abstract
Xinfushan and Shanggang rock distributed in early Archean Taishan group and northeastern part of the ancient continental nucleus which were composed of tonalitic gneiss and banded tonalite gneiss. Its main rock properties are gneissic granodiorite and gneissic trondhjemite. According to new zircon SHRIMP U - Pb dating, the forming age of gneissic granodiorite was （2613±12）Ma, and the forming age of gneissic trondhjemite was （2 623±9） Ma. They were formed in mid Neoarchean. Zircon U - Pb age of trondhje-mite veins in banded tonalite- diorite gneiss which were exposed between Taohuayu in Taishan mountain and Xiagang was 660-2600Ma. These rocks were the production of metamorphism and remelting magmatism in the new early Archean tonalitic gneiss.关键词
新太古代中期/岩浆活动/SHRIMP锆石定年/新甫山与上港岩体/鲁西地区Key words
Mid Neoarchean/magmatic activity/SHRIMP U- Pb zircon dating/Xinfushan and Shanggang rock/western Shandong province分类
天文与地球科学引用本文复制引用
王世进,万渝生,杨恩秀,宋志勇,王立法,王伟,董春艳..鲁西地区新太古代中期岩浆活动——新甫山与上港等岩体锆石SHRIMPU—Pb定年的证据[J].山东国土资源,2012,28(4):1-7,7.
