| 全隐伏变质岩系构造分析的几个问题 |
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| 引用本文： | 徐树桐,陆镜元,张维民,陈冠宝.全隐伏变质岩系构造分析的几个问题[J].地质科学,1980,15(2):134-141. |
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| 作者姓名： | 徐树桐 陆镜元 张维民 陈冠宝 |
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| 作者单位： | 安徽省地质研究所 |
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| 摘 要： | 对于完全无露头的低-中级变质并多期变形的变质杂岩,由于变形复杂及地表全无露头,因而在进行构造分析时将会遇到许多困难。例如安徽霍丘群含铁岩系自进行普查勘探以来,迄今未作出肯定的构造解释。困难之处在于:(1)难于确定钻孔中各岩性层的产状及其变化;(2)难于找出连续、稳定的简单标志层。例如该群的不同组中都有类似的岩性层(碳酸岩、片岩、片麻岩)。
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| 关 键 词： | , |
ON PROBLEMS OF STRUCTURE ANALYSIS FOR CONCEALED METAMORPHIC ROCK SERIES |
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| Hsu Shutony,Lu Jinyuan,Chang Weimin,Chen Guenbou.ON PROBLEMS OF STRUCTURE ANALYSIS FOR CONCEALED METAMORPHIC ROCK SERIES[J].Chinese Journal of Geology,1980,15(2):134-141. |
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| Authors: | Hsu Shutony Lu Jinyuan Chang Weimin Chen Guenbou |
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| Institution: | Anhui Institute of Geology |
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| Abstract: | Geologists always face lots of difficulties in structure analysis of concealed me-tamorphic rocks series. The most difficulties are (1) to orientate fabrics in drill hole and (2) to establish the key bed. To overcome these difficulties is not so easy as in the exposed area, but it should be the necessary first step in any attempt to determine the structural pattern, and is thus the means in the specialized studies in such an area.We proposed, in this paper, a method which generalized much of ,the previous methods making it more appropriate to concealed areas of metamorphic rocks. It is pointed out how to determine and distinguish the orientation of S-surface of multi-phases of deformation and how to establish the key bed of concealed metamorphic rocks by using the data from drill cores and finally how to construct the structural profiles of the selected area as an example. |
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| Keywords: | , |
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