| 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 |
| |
| 引用本文： | 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].山东地质,2012(4):1-7. |
| |
| 作者姓名： | 王世进 万渝生 杨恩秀 宋志勇 王立法 王伟 董春艳 |
| |
| 作者单位： | [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 [3]北京离子探针中心,北京100037 [4]中国科学院地质与地球物理研究所,北京100029 |
| |
| 摘 要： | 新甫山、上港岩体分布于鲁西新太古代早期泰山岩群和英云闪长质片麻岩、条带状英云闪长质片麻岩组成的古陆核的东北部。主要岩性为片麻状花岗闪长岩及片麻状奥长花岗岩。根据新的锆石SHRIMPU—Pb定年结果，片麻状花岗闪长岩形成年龄为（2613±12）Ma，片麻状奥长花岗岩形成年龄为（26234±9）Ma，为新太古代中期形成。在泰山桃花峪一下港之间出露的条带状英云闪长质片麻岩中奥长花岗质脉体锆石U—Pb年龄在2660～2600Ma。该期岩体是新太古代早期英云闪长质片麻岩发生变质作用与重熔岩浆作用的产物。
|
| 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 |
Mid Neoarchean Magmatism in Western Shandong Province--Evidence of Zircon SHRIMP U- Pb Dating in Xinfushan and Shanggang Rock |
| |
| WANG Shijin,WAN Yusheng,YANG Enxiu,SONG Zhiyong,WANG Lifa,WANG Wei,DONG Chunyan.Mid Neoarchean Magmatism in Western Shandong Province--Evidence of Zircon SHRIMP U- Pb Dating in Xinfushan and Shanggang Rock[J].Geology of Shandong,2012(4):1-7. |
| |
| Authors: | WANG Shijin WAN Yusheng YANG Enxiu SONG Zhiyong WANG Lifa WANG Wei DONG Chunyan |
| |
| Institution: | 1. Shandong Geological Surveying Institute, Shandong Jinan 250013, China;2. Chinese Academy of Geo- logical Sciences, Beijing 100037, China; 3. Beijing SHRIMP Center, Beijing 100037, China; 4. Geology and Geophysics Institue of Chinese Academy of Sciences, Beijing 100029, China) |
| |
| 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. |
| |
| Keywords: | Mid Neoarchean magmatic activity SHRIMP U- Pb zircon dating Xinfushan and Shanggang rock western Shandong province |
| 本文献已被 维普 等数据库收录！ |
