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...

南岭东段早侏罗世沉积岩碎屑锆石U-Pb定年及其地质意义――以东坑盆地为例

, PP. 78-86

Keywords: 碎屑锆石,东坑盆地,印支造山,南岭东段

Full-Text   Cite this paper   Add to My Lib

Abstract:

印支造山运动是华南早中生代最重要的构造-岩浆事件,它在很大程度上影响了华南现今的地形和地貌特点。本文研究了南岭东段赣南早侏罗世东坑火山岩盆地沉积岩的碎屑锆石U-Pb年代,获得最显著的年龄峰值为196Ma、238Ma、364Ma和427Ma,表明该沉积岩并不是外来的震旦纪-寒武纪变质岩,而是早侏罗世裂谷火山盆地的沉积物。缺乏260~290Ma的锆石年龄,很可能反映物质为近源来源。通过与闽西南晚三叠世和华南内陆中-晚二叠世沉积砂岩中碎屑锆石年龄谱对比,反映华南印支早期(290~260Ma)岩浆活动主体在东南沿海地区,晚期(240~200Ma)主体发育在内陆地区。大量印支期侵入岩锆石的出现也很可能表明华南内陆印支造山带在~190Ma已经经历了相当程度的垮塌。

References

[1]  王果胜,何付兵,朱卫平,马文璞. 2009. 闽西南晚三叠世文宾山组碎屑锆石U?Pb年龄及地质意义. 现代地质,23: 246-255.
[2]  王建,李三忠,金宠,王岳军,张国伟,刘丽萍,刘鑫. 2010. 湘中地区穹盆构造:褶皱叠加期次和成因.大地构造与成矿学,34(2): 159-165.
[3]  王岳军,廖超林,范蔚茗,彭头平. 2004. 赣中地区早中生代OIB碱性玄武岩的厘定及构造意义. 地球化学,33(2): 109-117.
[4]  巫建华,张树明,周维勋. 1999. 赣南-粤北余田群的再认识. 地层学杂志,23(1): 295-302.
[5]  巫建华,周维勋,章邦桐. 2000. 赣南-粤北晚中生代火山岩系划分和时代讨论,46(4): 362-370.
[6]  邢光福,卢清地,陈荣, 张正义,聂童春,李龙明,黄家龙,林敏. 2007. 华南晚中生代构造体制转折结束时限研究――兼与华北燕山地区对比. 地质学报,81(11): 1-11.
[7]  Li X H, Sun M, Wei G J, Liu Y, Lee C Y and Malpas J G. 2000. Geochemical and Sm?Nd isotopic study of amphibolites in the Cathaysia Block, SE China: Evidence for extremely depleted mantle in the Paleoproterozoic. Precambrian Research, 102: 251-262.
[8]  Li Z X and Li X H. 2007. Formation of the 1300 km?wide intra?continental orogen and post?orogenic magmatic province in Mesozoic South China: A flat?slab subduction model. Geology, 35: 179-182.
[9]  Li Z X, Li X H, Chung S L, Lo C H, Xu X S and Li W X. 2012. Magmatic switch?on and switch?off along the South China continental margin since the Permian: Transition from an Andean?type to a Western Pacific?type plate boundary. Tectonophysics, 532-535: 271-290.
[10]  Li Z X, Li X H, Wartho J A, Clark C, Li W X, Zhang C L and Bao C. 2010. Magmatic and metamorphic events during the Early Paleozoic Wuyi?Yunkai Orogeny, southeastern South China: New age constraints and P?T conditions. GSA Bull, 122: 772-793.
[11]  Liu Y S, Gao S, Hu Z C, Gao C G, Zong K Q and Wang D B. 2010. Continental and oceanic crust recycling?induced melt?peridotite interactions in the Trans?North China Orogen: U?Pb dating, Hf isotopes and trace elements in zircons from mantle xenoliths. Journal of Petrology, 51(1-2): 537-571.
[12]  Meinhold G, Morton A C and Avigad D. 2012. New insights into peri?Gondwana paleogeography and the Gondwana super?fan system from detrital zircon U?Pb ages. Gondwana Research, doi:10.1016/j.gr.2012.05.003.
[13]  Pietranik A B, Hawkesworth C J, Storey C D, Kemp A I S, Sircombe K N, Whitehouse M J and Bleeker W. 2008. Episodic, mafic crust formation from 4.5 to 2.8 Ga: New evidence from detrital zircons, Slave craton, Canada. Geolgoy, 36: 875-878.
[14]  Shu L S, Zhou X M, Deng P, Wang B, Jiang S Y, Yu J H and Zhao X X. 2009. Mesozoic tectonic evolution of the Southeast China Block: New insights from basin analysis. Journal of Asian Earth Sciences, 34: 376-391.
[15]  Waldron J W F, Floyd J D, Simonetti A and Heaman L M. 2008. Ancient Laurentian detrital zircon in the closing Iapetus Ocean, Southern Uplands terrane, Scotland. Geology, 36: 527-530.
[16]  Wang Y J, Fan W M, Guo F, Peng T P and Li C W. 2003. Geochemistry of Mesozoic mafic rocks adjacent to the Chenzhou?Linwu fault, South China: Implications for the lithospheric boundary between the Yangtze and Cathaysia blocks. International Geology Review, 45: 263-286.
[17]  Wang Y J, Fan W M, Zhang G W and Zhang Y H. 2012. Phanerozoic tectonics of the South China Block: Key observations and controversies. Gondwana Research, doi:10.1016/j.gr.2012.02.019.
[18]  Yu J H, Wang L J, O′Reilly S Y, Griffin W L, Zhang M, Li C and Shu L. 2009. A paleoproterozoic orogeny recorded in a long?lived cratonic remnant (Wuyishan terrane), eastern Cathaysia Block, China. Precambrian Research, 174: 347-363.
[19]  陈培荣, 孔兴功, 倪琦生, 章邦桐, 刘昌实. 1999a. 赣南燕山早期双峰式火山的厘定和意义. 地质论评, 45(增刊): 734-741.
[20]  陈培荣, 孔兴功, 王银喜, 倪琦生, 章邦桐, 凌洪飞. 1999b. 赣南燕山早期双峰式火山-侵入杂岩的Rb?Sr同位素定年及意义. 高校地质学报, 45(5): 367-383.
[21]  陈杨,刘树根,李智武,邓宾,曾祥亮,林杰.2011.川西前陆盆地晚三叠世早期物源与龙门山的有限隆升――碎屑锆石U?Pb年代学研究. 大地构造与成矿学,35(2): 315-323.
[22]  崔盛芹,李锦蓉. 1983. 试论中国滨太平洋带的印支运动. 地质学报,57(1): 52-62.
[23]  福建省地质矿产局. 1985. 福建省地质志. 北京: 地质出版社: 1-671.
[24]  冀雨春,巫建华. 2010. 江西南部余田群长英质火山岩SHRIMP锆石U?Pb年龄及其地质意义. 东华理工大学学报(自然科学版), 33(2): 131-138.
[25]  江西省地质矿产局. 1984. 江西省区域地质志. 北京: 地质出版社: 1-921.
[26]  江西省地质矿产厅. 1997. 江西省岩石地层. 武汉: 中国地质大学出版社:1-375.
[27]  任纪舜. 1990. 论中国南部的大地构造. 地质学报, 66(4): 275-288.
[28]  舒良树,王艳,沙金庚. 2011. 中国东南部侏罗纪沉积特征与形成环境研究. 地质学刊,35(4): 337-348.
[29]  Amato J M and Pavlis T L. 2010. Detrital zircon ages from the Chugach terrane, southern Alaska, reveal multiple episodes of accretion and erosion in a subduction complex. Geology, 38: 459-462.
[30]  Black L P, Kamo S L, Allen C M, Aleinikoff J N, Davis D W, Korsch R J and Foudoulis C. 2003. TEMORA 1: A new zircon standard for Phanerozoic U?Pb geochronology. Chemical Geology, 200: 155-170.
[31]  Li X H. 1997. Timing of the Cathaysia block formation: Constraints from SHRIMP U?Pb zircon geochronology. Episodes, 20: 188-192.
[32]  Li X H, Chung S L, Zhou H W, Lo C H, Liu Y and Chen C H. 2004. Jurassic intraplate magmatism in southeastern Hunan?eastern Guangxi: 40Ar/39Ar dating, geochemistry, Sr?Nd isotopes and implications for the tectonic evolution of SE China // Malpas J, Fletcher C J N, Ali J R and Aitchison J C. Aspects of the tectonic evolution of China. Geologcial Society, London, Special Publications, 226: 193-215.
[33]  Li X H, Li Z X, He B, Li W X, Li Q L, Gao Y and Wang X C. 2012. The Early Permian active continental margin and crustal growth of the Cathaysia Block: Insitu U?Pb, Lu?Hf and O isotope analyses of detrital zircons. Chemical Geology, 328: 195-207.
[34]  Li X H, Li Z X, Li W X and Wang Y J. 2006. Initiation of the Indosinian Orogeny in South China: Evidence for a Permian Magmatic Arc on Hainan Island. Journal of Geology, 114: 341-353.
[35]  Zhou X M, Sun T, Shen W, Shu L and Niu Y. 2006. Petrogenesis of Mesozoic granitoids and volcanic rocks in South China: A response to tectonic evolution. Episodes, 29: 26-33.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133