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地质论评  2001 

对赣东北晚古生代放射虫的初步认识

Keywords: 放射虫硅质岩蛇绿混杂岩江西印支期构造事件古生代新元古代

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Abstract:

基于以往大量的研究成果和基本地质事实,人们已认同江南造山带是一个新元古代的碰撞造山带,最近,一些研究者根据在赣东北新元古代蛇绿混杂岩带中发现的晚古生代含放射虫硅质岩,认为该蛇绿岩带中的硅质岩至少是晚古生代的产物,进而提出一个解体江南古陆、江南地区普存在晚古生代一中生代板溪洋的命题根据野外调查、室内化学分析等综合研究,本文认为赣东北含放射虫硅质岩是大陆边缘浅水相沉积产物,稀土元素特征不支持大洋地壳上的深水环境,强烈的印支期构造事件有可能使晚古生代含放射虫硅质岩发生构造运移,并与新元古代蛇绿岩彼此混杂。

References

[1]  郭令智,施央申,马瑞士.l980.华南大地构造格架和地壳演化.国际交流地质学术论文集(1).北京:地质出版社,109~116.
[2]  郭令智,卢华复,施央申等.1996.江南中、新元古代岛弧的运动学和动力学.高校地质学报,2(1):1~13.
[3]  何科昭,赵崇贺,乐昌硕等.1999.“板溪群”构造属性的再认识与思考,地学前缘.6(4):353~362.
[4]  何科昭,聂泽同,赵崇贺等.2000.赣东北晚古生代放射虫化石综述.现代地质(中国地质大学研究生院学报),14(1):1~7.
[5]  吉磊.1992.稀土元素:海相硅质岩沉积环境的有效指标.地质论评,38(5):444-448.
[6]  Bureau of geology and Mineral Resources, Jiangxi Province. 1984. Regional Geologyof Jiangxi Province. Beijing: Geological Publishing House, 1~921 (in Chinese).
[7]  Chen Jiangfeng,Foland K A, Xing Fengming, et al. 1991. Magmatism along thesouthest margion of the Yangtze block Precambrian collision of the Yangtze and Cathysianblock of China. Geology,19:815~818.
[8]  Guo Lingzhi, Shi Yangshen, Ma Ruishi. 1980. Tectonic framework and crustalevolution of South China. International Symposium of Geology. Beijing: GeologicalPublishing House, Vol. 1: 109~116(in Chinese).
[9]  Guo Lingzhi, Lu Huafu, Shi Yangshen, et al. 1996. On the Meso-NeoproterozoicJiangnan Island Arc: its kinematics and dynamics.Geological Journal of Universities, 2(1): 1~13 (in Chinese with English abstract).
[10]  He Kezhao, Zhao Chonghe, Yue Changshuo, et al. 1999. Reexamination and impressionson "Banxi Group". Earth Science Frontiers.6(4): 353~362(in Chinese withEnglish abstract).
[11]  He Kezhao, Nie Zetong, Zhao Chonghe, et al. 2000. Discovering Fossils on the LatePaleozoic radiolarian in Northeast Jiangxi Province. Geoscience, 14(1): l~7(in Chinesewith English abstract).
[12]  Ji Lei. 1992. Rare Earth Elements: the effective indicator of depositionalenvironments of marine cherts. Geological Review, 38(5):444~448(in Chinese with Englishabstract).
[13]  Li Xianhua. 2000. Geochemical characteristics and its tectonic implication ofcherts in ophiolitic me1ange, Norheast Jiangxi. Science in China(Series D), 30(3): 284~290(inChinese).
[14]  Li Xianhua, Zhou Guoqing, Zhao Jianxin, et al. 1994. SHRIMP ion microprobe zirconU-Pb age and Sm-Nd isotopic characteristics of the NE Jiangxi ophiolite and its tectonicimplications. Chinese Journal of Geochemistry, 13(4): 317~325.
[15]  Shu Liangshu, Zhou Guoqing, Shi Yangshen, et al. 1993. High-pressure metamorphicblue schist in the eastern section of Jiangnan Orogenic belt and its geological age.Chinese Science Bulletin, 38(20): 1879~1882(in Chinese).
[16]  Shu Liangshu, Shi Yangshen, Guo Lingzhi, et al. 1995. Plate tecton ic evolutionand the kinematic of collisional orogeny in the middle part of the Jiangnan, EasternChina. Nanjing: Publishing House of Nanjing University, 1~174 (in Chinese with Englishabstract).
[17]  Sun S S, Mc Donough W F. 1989. Chemical and isotopic systematics of oceanicbasalts: implications for mantle composition and processes. In: Saunders A D, Norry M.eds. Magmatism in the Ocean Basins. Geol. Soc. London, Spec. Publ.,42:313~345.
[18]  Wang Yujing, Qi Dunlun. 1995. Radiolarian Fauna of the Gufeng Formation insouthern part of Jiangsu and Anhui Provinces. Acta Micropalaeontologica Sinica, 12 (4):374~387 (in Chinese with English abstract).
[19]  江西地质矿产局.1984.江西省区域地质志.北京:地质出版社,1~921.
[20]  李献华.2000.赣东北蛇绿混杂岩带中硅质岩的地球化学特征及构造意义.中国科学(D辑),30(3):284~290.
[21]  任纪舜,陈廷愚,牛宝贵等.1990.中国东部及邻区大陆岩石圈的构造演化与成矿.北京:科学出版社,1~205.
[22]  舒良树,周国庆,施央申等.1993.江南造山带东段高压变质蓝片岩及其地质时代研究.科学通报,38(20):1879~1882.
[23]  .舒良树,施央申,郭令智等.1995.江南中段板块-地体构造与碰撞造山运动学.南京:南京大学出版社,1~174.
[24]  .王玉净,齐敦伦.1995.苏皖南部孤峰组放射虫动物群.微体古生物学报,12(4):374~387.
[25]  .徐备,乔广生.1989.赣东北晚元古代蛇绿岩的Sm-Nd同位素年龄及原始构造环境.南京大学学报(地球科学),(3):108~114.
[26]  .俞剑华,陈敏娟,方一亭等.1988.中国东南大陆边缘震旦系及下古生界发育特征与地层地体.南京大学学报(地球科学版),(1):1~8,
[27]  .赵崇贺,何科昭,莫宣学等.1995.赣东北深断裂带蛇绿混杂岩中含晚古生代放射虫硅质岩的发现及其意义.科学通报,40(23):2161~2163.
[28]  .周新民,邹海波,扬杰东等.1989.安徽歙县伏川蛇绿岩套的Sm-Nd等时线年龄及其地质意义.科学通报,34(16):1243~1245.
[29]  .周国庆,赵建新.1991.华南扬子克拉通东南缘赣东北蛇绿岩Sm-Nd同位素研究.科学通报,36(2):129-132.
[30]  Murray R W,Brink M B,Jones D L, et al. 1990. Rare earth elements as indicators ofdifferent marine depositional environments in chert and shale. Geology. 18(3): 268~271.
[31]  Ren Jishun. 1993. Relation of East Gondwana to the revolution of Asian Continent.In: Pereira J J, Ng T F, Khoo T T. eds.Gondwana dispersion and Asian accretion. IGCPproject 321,Third International Symposium,Kuala Lumpar.
[32]  Ren Jishun, Chen Tingyu, Niu Baogui, et al. 1990. Tectonic evolution andmineralizations of the continental lithosphere in eastern China and adjacent regions.Beijing: Science Press, 1~205(in Chinese).
[33]  Shimizu H,Masuda A. 1977. Cerium in chert as an indication of marine environmentof its formation. Nature,266(29): 346~348.
[34]  Xu Bei, Qiao Guangsheng. 1989. Sm-Nd Isotopic age and tectonic setting of the LateProterozoic ophiolites in Northeastern Jiangxi Province. Journal of Nanjing University(Earth Sciences), (3):108~114(in Chinese with English abstract).
[35]  Yu Jianhua, Chen Minjuan, Fang Yiting, et al. 1988. The developmentalcharacteristic and the terrane tectonics of Sinian and Early Paleozoic in the continentalmargin of Southeast China. Journal of Nanjing University(Earth Sciences), (1): l~8(inChinese with English abstract).
[36]  Zhao Chonghe, He Kezhao, Mo Xuanxue, et al. 1995. Discovery and significance ofthe Late Paleozoic radiolarian-bearing cherts in the ophiolitic melange within the deepfault belt in Northeast Jiangxi.Chinese Science Bulletin, 40(23): 2161~2163(in Chinese).
[37]  Zhou Guoqing, Zhao Jianxin. 1991. Sm-Nd isotopic study of ophiolite
[38]  in the northeastern Jiangxi at the southeastern margion of the Yangtze craton,South China. Chinese Science Bulletin, 36(2):129~132(in Chinese).
[39]  Zhou Xinmin, Zou Haibo, Yang Jiedong, et al. Sm-Nd Isochron for the ophioliticsuite at Fuchuan, Shexian County, Anhui Province and its geological implications. ChineseScience Bulletin, 34(16):1243~1245 (in Chinese).

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