华夏地块

华夏地块：一个由古老物质组成的年轻陆块

Cathaysia Block : A Young Continent Composed of Ancient Materials

华夏地块基底变质岩同位素年龄数据评述

Comment on the Isotopic Age Data of Basement Metamorphic Rocks in Cathaysia Block

另外，碎屑锆石的Hf同位素研究结果表明华夏地块和扬子地块西北部在古-中古元古代时期存在存在显著的新生地壳物质，这一特征完全不同于西澳大利亚。

Besides , detrital zircons in Cathaysia and NW Yangtze indicate significant juvenile input during Paleo-to Mesoproterozoic according to the zircon Hf isotopes , which are distinctly different from Western Australia .

在对比岩石建造的异同、矿产资源种类的分布及同位素pb的区间值等因素后，将弋阳&遂川一线定为下场子与华夏地块的边界。

By comparison of the differences and similarities in the type of rock formation , distribution of mineral resource , and value interval of Pb isotope , etc , the route along Yiyang-Suichuan is determined the margin between lower Yangtze land mass and Huaxia massif .

华夏地块相对于扬子地块是比较活动的构造单元。

The Cathaysian block is more mobile in comparison with the Yangtze block .

华南（研究区）由杨子地块东南部和华夏地块组成。

South China ( studying area ) is composed of the Cathaysian block and the southeastern part of Yangtze block .

近期一些文献中的华夏地块（陆块）的内涵已经不是原来的华夏古陆。

The intension of the term Cathaysian block ( continent block ) in the recent magazines is not that of the original Cathaysian old land .

还讨论了华夏地块问题，简述了关于地质构造单元命名的基本原则。

This paper discusses some problems of the Cathaysian Block and briefly points out the basic principles of the nomenclature about the geologic structural units .

华夏地块的加里东造山事件的起因更可能是陆内碰撞而非洋壳俯冲或弧陆碰撞。

The Caledonian orogenic event in the Cathaysia Block was likely due to an intracontinental collision rather than the subduction of oceanic crust or arc-continental collision .

浙闽地区华夏地块前寒武纪基底上部主要由新元古代龙泉群、马面山群和万全群组成。

The upper basement of the Cathaysia block in Zhejiang and Fujian provinces consists mainly of the Neoproterozoic Longquan Group , Mamianshan Group , and Wanquan Group .

研究区的西北部为属于扬子地块的江南造山带，而其东南部为属于华夏地块的加里东造山带。

Northwest of the study area as the Jiangnan orogen is belong to the Yangtze Block , and southeast of the study area as the Caledon orogen is belong to the Cathaysia Block .

因此赣中变质岩带并非长期公认的华南加里东褶皱带，应是华夏地块的一部分，这一事实对华南大地构造单元的划分及构造演化具有重要意义。

Therefore , the central Jiangxi metamorphic belt belongs to the Cathaysian massif rather than the Caledonian fold belt of South China . This view has important significance for tectonic evolution and division of South China .

马雷市是绿洲地区中一座凌乱的城市，是用白色的、死气沉沉的砖块一块块堆垒起来的。华南（研究区）由杨子地块东南部和华夏地块组成。

Mari was a scrawl over the oasis , built piecemeal in a pallid , dead brick . South China ( studying area ) is composed of the Cathaysian block and the southeastern part of Yangtze block .

晚奥陶世早志留世华夏地块和扬子地块的碰撞带在广西仅限于它的东北部，表现为震旦系下志留统近南北向的线形褶皱带。

The Late Ordovician Early Silurian collision belt in Guangxi , between the Cathaysian and Yangtze blocks , can only be seen in its northeastern part , and this belt is presented as the N S oriented Sinian Early Silurian linear fold belt .

现有资料支持华夏和扬子两地块在晚元古代碰撞拼合的解释。在晚元古代以前该地区至少发生过两次热动力变质作用。

The data offered here favor that the collision between the Yangtze and Cathysia blocks happened in the late Proterozoic era . Before Later Proterozoic era , in this area more than two times of thermodynamic metamorphism took place .