| 关于华夏古陆 |
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| 引用本文： | 卢华复.关于华夏古陆[J].高校地质学报,2006,12(4):413-417. |
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| 作者姓名： | 卢华复 |
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| 作者单位： | 南京大学地球科学系，南京 210093 |
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| 基金项目： | 致谢：本文是在王德滋院士的鼓励和支持下完成的,特此表示衷心感谢. |
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| 摘 要： | 葛利普1924年创立的华夏古陆是指震旦纪至侏罗纪位在华夏地槽以东的陆地，其位置在粤闽中东部和浙南东部并延入海域达西南日本和南朝鲜以及以东的海域，达西南日本和朝鲜半岛的东南角，它是高于海面的古陆地，震旦纪和早古生代它供给华夏地槽沉积地层中的碎屑物。葛利普82年前提出的华夏古陆在中国区域地质和古地构造研究中发生了巨大影响。它本身是地槽理论体系中提出的构造单元并兼有古地理涵义，其研究方法主要是古物地层学、沉积学、地层接触关系、地层厚度分析等当时是先进的地质研究途径。以后的研究经过了地槽理论阶段和板块理论阶段。在地槽理论阶段已经对原来的华夏古陆概念在时空上作出了变化，如黄汲清华夏古陆就是华夏加里东褶皱带。上世纪90年代对于华夏古陆的研究已经进入了板块构造理论阶段，这时期的先进的同位素测年和韧性变形、脆性变形、深部构造等研究方法提供了大量的全新的资料和证据。华夏古陆或华夏地块主要指大陆地壳块体，因而逐渐完全离开了葛利普华夏古陆概念。近期一些文献中的华夏地块的内涵已经不是原来的华夏古陆。华夏古陆的八十年演变折射出了中国大地构造研究进步的一个方面。
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| 关 键 词： | 华夏古陆 华夏地块 古地理 构造特征 华夏地槽 |
| 文章编号： | 1006-7493（2006）04-0413-05 |
| 收稿时间： | 2006-09-16 |
| 修稿时间： | 2006-09-22 |
On the Cathaysian Old Land |
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| LU Hua-fu.On the Cathaysian Old Land[J].Geological Journal of China Universities,2006,12(4):413-417. |
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| Authors: | LU Hua-fu |
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| Institution: | Detp. of Earth Sciences, Nanjing University, Nanjing 210093, China |
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| Abstract: | The Cathaysian old land proposed by A.W. Grabau was a old land located to the southeast of Cathaysian geosyncline during Sinian to Jurassic from central-east Guangdong and Fujiang provinces to southeast Zhejiang province and their off shore sea. It was an old land belt higher than the sea level as a source area of the clastic materials of the sediments of Sinian and Lower Paleozoic strata in Cathaysian geosyncline. The term Cathaysian old land proposed by A.W. Grabau 82 years ago resuted in very important and great effect to the research on geology and tectionics of China. It was a structural unit term suggested in the geosyncline theory framework with some paleogeographic significance as well, and based on the research methods of paleontology, stratigraphic division correlation and its thickness analysis, sedimentology, stratigraphical contact relationship, which were advanced geological methods in 20's of last century. The research work consequently experienced geosyncline theory period and plate tectonics theory period. There existed some important changes of concept of the Cathaysian old land during the geosyncline theory period. For example, T. K. Huang (1945, 1960) suggested the Cathaysian old land equivalent to the Caledonian folded belt or Cathaysian fold belt which occupied the main area of Kwangdong, Fujian, Jiangxi provinces and part of Hunan, Zhejiang provinces in south China. Starting from the 90's of last century the research on the Cathaysian old land entered the plate tectonics theory period, and the term Cathaysian old land or Cathaysian block (continent block) became mainly to identify the existance of the continental crust mass, almost totally separated from the concept of Grabau's Cathaysian old land based on the tremendous new dada and evidence by modern methods such as SHIMP U-Pb, LA-ICPMS U-Pb, 40Ar- 39Ar precise age determination, ductile and britle deformation, and deep setting structure. The intension of the term Cathaysian block (continent block) in the recent magazines is not that of the original Cathaysian old land. The change of the Cathaysian old land concept reflects one aspect of the advance of the tectonic research work in China. |
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| Keywords: | Cathaysian old land Cathaysian block paleogeography structural feature Cathaysian geosyncline |
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