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华南板块

华南板块
The Yangtze Plate
類型次要板塊
移動方向1東南方
移動速度115毫米(0.59英寸)/1年
涵蓋範圍中國
1相對於非洲板块
alt=華南板塊(YA)及其邻近板块的边界结构   张裂型板块边界   聚合型板块边界   错动型板块边界 隐没带  Alps  造山带 30 → 相对于非洲板块的移动速度(毫米/Y)
華南板塊(YA)及其邻近板块的边界结构

隐没带
 Alps  造山带 30 → 相对于非洲板块的移动速度(毫米/Y

华南板块,也称扬子板块长江板块,是指从秦岭淮河到冲绳海槽这个巨大的稳定地区,是一块位于东亚的板块。在华南板块内部,又细分为扬子克拉通(即扬子陆块、华南地块)、华夏地块(学术界对是否存在华夏古陆有争议,因此有人称之为华南褶皱带),二者分界线为萍乡——绍兴断裂带、江南造山带。

华南板块包括中國南部,東面與沖繩板塊沖繩海槽分隔,東北與阿穆尔板块東海黃海交接處相鄰,南面是巽他板塊菲律賓板塊,北面和西面有歐亞大陸板塊汶川大地震位於與後者邊界的龍門山斷層[1]

华南板块形成于罗迪尼亚超大陆750 Ma新元古代的解体。在志留纪,华南板块沿断层从冈瓦纳大陆上滑走。在盘古大陆形成过程中,华南板块是盘古大陆东边一个小而独立的大陆,并向北运动。在三叠纪,华南板块与华北板块相撞,与盘古大陆相连,并形成四川盆地。在新生代,华南板块受到印度板块欧亚板块相撞的影响,发生了四川龙门山的抬升。[2]:1–11它南部的运动沿红河断裂带英语Red River Fault相适应。

中英文名称的翻译

[编辑]

目前,地质学的中文术语与英文术语,对华南或扬子板块及陆块的习惯用名正好是反着的。在中文术语中,本板块常称为“华南板块”,并包括了扬子陆块(即扬子克拉通)与华夏地块(华夏陆块)等较小的陆地结构。而在英文中,则习惯将扬子陆块称为“华南陆块”(South China Continent),而华南板块则称为“扬子板块”(Yantze Plate)。 不过,“扬子克拉通”(Yangtze craton)这个名称中英文是一致的,因为其南邻的华夏地块无论如何不能算是一个克拉通

华夏地块与扬子陆块接触带之间存在一条深大裂谷,后江西赣东南地段火山口喷发,岩浆流入将深大裂缝谷胶结填充,称华夏地区块。

參考文獻

[编辑]

Bird, P. (2003) An updated digital model of plate boundaries, Geochemistry Geophysics Geosystems, 4(3), 1027, doi:10.1029/2001GC000252. [1]页面存档备份,存于互联网档案馆

  1. ^ 汶川8.0级地震成因分析 (Cause Analysis of the M8.0 Wenchuan earthquake). China Earthquake Administration. 2008-05-30 [2008-09-07]. (原始内容存档于2008-09-16) (中文). 
  2. ^ JIA ChengZao, LI BenLiang, ZHANG XingYang & LI ChuanXin. Formation and evolution of the Chinese marine basins. Chinese Science Bulletin. November 2007, 52. doi:10.1007/s11434-007-6012-x. 
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华南板块
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