RELATIVE BLOCKS AND CONVERGENCE PROCESS DURING THE CALEDONIAN MOVEMENT IN SOUTH CHINA
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摘要: 从华南加里东期相关地块的特征及其来源分析出发,探讨了华南加里东运动。加里东期,华南的湘桂、赣南、云开、浙闽、保山、腾冲等地块及扬子陆块均与罗迪尼亚超级大陆的裂解有关,这些裂解地块在早古生代形成冈瓦纳大陆的背景下发生聚合和碰撞拼贴,产生多期不同性质的加里东构造运动,而且此次地块碰撞拼贴具有软碰撞性质,主要表现为在地块碰撞的前锋带形成大陆边缘隆起和发育碰撞花岗岩,并在碰撞地块的前后缘有残留海盆存在。Abstract: This paper discussed the plate tectonic movement during the Caledonian in South China by analyzing the feature and origin of relative blocks in Caledonian Movement.During the Caledonian,Xianggui,Gannan Yunkai,Zhemin,Baoshan,Tengchong and Yangzi blocks had all relationship of the cracking of the Rodinia continent.These blocks converge and collide under the background of forming the Gondwana continent in Eopaleozoic.And then multiperioyic Caledonian Movement with different character was formed.The collision matching has the character of soft collision and weak orogenic which appear as the continent margin uplift and collision granite formed in the front of collided landmasses,also in the back and front of collided landmasses the relict seabasin was found.After the Caledonian Movement,the basic tectonic structure of South China had been set up.
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Key words:
- Caledonian Movement /
- relative blocks /
- cracking of Rodinia continent /
- converge of blocks /
- South China
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[1] 马力,陈焕疆,甘克文等.中国南方大地构造和海相油气地质(上)[M].北京:地质出版社,2004.19~42 [2] 杨方之,马永生.中国南方海相油气地质条件与勘探评价[J].南方油气,2003,3(4):2~15 [3] 金鹤生,施央申,卢华复等.湘中地体:一个古澳大利亚克拉通的碎片[J].湖南地质,1992,11(2):91~96 [4] 广西壮族自治区地质矿产局.广西区域地质志[M].北京:地质出版社,1985 [5] 劳秋元,胡世玲,叶真华等.云开群硅质岩的40Ar/39Ar年龄及其地质意义[J].地球学报,1997,18(增刊):89~101 [6] 李献华.华南晋宁期运动:地质年代学和地球化学制约[J].地球物理学报,1998,41(增刊):185~194 [7] 庞保成,王丽娟.云开地块归属问题的讨论[J].地学前缘,2000,7(1):216 [8] 谢窦克,郭坤一.中国东南岩石圈板块边界变质带[M].北京:地质出版社.1989 [9] 杨明桂,王昆.江西省地质构造格架及地壳演化[J].江西地质,1994,8(4):239~250 [10] 吴根耀.华南的格林威尔造山带及其坍塌:在罗迪尼亚超大陆演化中的意义[J].大地构造与成矿学,2000,24(2):112~121 [11] 高长林,单翔麟,秦德余.中国古生代盆地基底大地构造特征[J].石油实验地质,2005,27(6):552~557 [12] 云南省地矿局.云南省区域地质志[M].北京:地质出版社,1990 [13] 张世红.中、新元古代全球古大陆再造的古地磁研究[J].现代地质,2004,(4):222~224 [14] 张文治.全球新元古超大陆拼合和裂解及中国大陆所处位置[J].古地磁研究进展,2000,23(3):179~189 [15] 郝杰,翟明国.罗迪尼亚超大陆与晋宁运动和震旦系[J].地质科学,2004,39(1):139~152 [16] Li Z X,Li X H,Kinny P D,et al.Geochronology of Neopro-terozoic syn-rift magmatism in the Yangtze Craton,South China and correlations with other continents:evidence for a mantle superplume that broke up Rodinia[J].Precambrian Research,2003,122,85～109 [17] 廖宗廷,马婷婷,周征宇等.Rodinia裂解与华南微板块形成和演化[J].同济大学学报(自然科学版),2005,33(9):1183～1190 [18] 王鸿祯,张世红.全球前寒武纪基底构造格局与古大陆再造问题[J].地球科学,2000,27(5):467～481 [19] 廖宗廷,周组翼,陈焕疆等.试论中国东南地区大陆边缘构造演化的特征[J].石油实验地质,1994,16(3):234～241 [20] 周小进,杨帆.中国南方新元古代-早古生代构造演化与盆地原型分析[J].石油实验地质,2007,29(5):446～451 [21] 张渝昌.中国含油气盆地原型分析[M].南京:南京大学出版社,1997.44～80 -
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