| 沉积钙质白云石带状面缺陷的择优取向 |
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| 引用本文： | 胡梅生 唐玉梅 等. 沉积钙质白云石带状面缺陷的择优取向[J]. 矿物学报, 1991, 11(1): 9-12,T003,T004 |
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| 作者姓名： | 胡梅生 唐玉梅 等 |
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| 作者单位： | [1]南京大学现代分析中心,南京210008 [2]南京大学地球科学 |
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| 基金项目： | 国家自然科学基金,南京大学固体微结构实验室资助 |
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| 摘 要： | 作者用透射电子显微镜研究了沉积钙质白云石中的带状面缺陷。在衍衬象中面缺陷呈现出特有的条纹衬度,并具有一定的择优取向,它们沿着｛018｝面排列。面缺陷也可分叉,分枝部分平等于｛2－／10｝面。根据白云石面缺陷的取向,本文提出了鞍状白云石宏观弯曲面和微观面缺陷的取向关系。
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| 关 键 词： | 透射电子显微镜 沉积岩 钙质白云石 带状面缺陷 鞍状白云石 择优取向 |
THE PREFERRED ORIENTATION OF RIBBON-LIKE PLANAR DEFECTS IN SEDIMENTARY CALCAREOUS DOLOMITE |
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| Hu Meisheng Zhang Fusheng. THE PREFERRED ORIENTATION OF RIBBON-LIKE PLANAR DEFECTS IN SEDIMENTARY CALCAREOUS DOLOMITE[J]. Acta Mineralogica Sinica, 1991, 11(1): 9-12,T003,T004 |
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| Authors: | Hu Meisheng Zhang Fusheng |
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| Abstract: | Sedimentary calcareous dolomite from the Upper Sinian Dengying Formation in Nanjing, China, has been investigated by transmission electron microscopy. Most of the fringed planar defects are parallel predominantly to {018}. When the planar defects display branching, their short "arms" should be parallel to {2(?)0}. According to the orientation of the planar defects, we first proposed that the orientation relationship should exist between micrographic planar defects and macrographic distortion faces in saddle dolomite. |
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| Keywords: | transmission electron microscope calcareous dolomite planer defect saddle dolomite |
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