全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

海南岛琼中地区琼中岩体锆石U-Pb年龄及其地质意义

, PP. 227-233

Keywords: 岩体时代,地质意义,海南岛

Full-Text   Cite this paper   Add to My Lib

Abstract:

琼中地区琼中岩体为钙碱性的铝弱过饱和型花岗岩,具有壳源物质来源,岩石普遍发育定向组构,生成于同碰撞期―晚造山期。其锆石U-Pb年龄为226.5±2.9~234.2±2.3Ma,为晚三叠世。通过区域分析,认为海南岛海西―印支期花岗岩从西往东,具有由老至新的演化规律,形成了略向南面突出的弧状面理构造。表明同期造山活动消减方向由西至东,呈现出剪刀式闭合的特征。

References

[1]  马昌前,杨坤光,唐仲华,李增田.1994.花岗岩类岩浆动力学.武汉:中国地质大学出版社.
[2]  丘元禧.1992.广东省区域构造演化及其基本特征.广东地质,7(1):1-23.
[3]  丘元禧,张伯友.2000.华南古特提斯东延问题的探讨.中国区域地质,19(2):175-180.
[4]  汪啸风,马大铨,蒋大海主编.1991a.海南岛地质(二)(岩浆岩).北京:地质出版社.
[5]  汪啸风,马大铨,蒋大海主编.1991b.海南岛地质(三)(构造).北京:地质出版社.
[6]  吴浩若.2003.晚古生代―三叠纪南盘江海的构造古地理问题.古地理学报,5(1):63-76.
[7]  Ma Changqiang, Yang Kunguang, Tang Zhonghua and Li Zengtian. 1994. Magma-dynamics of granitoids. Wuhan: Press of China University of Geosciences.
[8]  Qiu Yuanxi. 1992. Regional tectonic evolution and its basic features in Guangdong Province. Guangdong Geology, 7(1): 1-23.
[9]  Qiu Yuanxi and Zhang Boyou.2000.On eastern extension of the paleo-Tethys in South China. Regional Geology of China, 19(2): 175-180.
[10]  Wang Xiaofang, Ma Daxuan and Jiang Dahai.1991a.Hainandao geology (2): Magmatic Rock geology. Beijing: Geology Press.
[11]  Wang Xiaofang, Ma Daxuan and Jiang Dahai.1991b.Hainandao geology (3): Structural Geology. Beijing: Geology Press.
[12]  Wu Haoruo. 2003. Discussion on tectonic palaeogeography of Nanpanjiang sea in the late Palaeozoic and Triassic. Journal of Palaeogeography, 5(1): 63-76.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133