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沉积钙质白云石带状面缺陷的择优取向
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
作者姓名:胡梅生 唐玉梅 等
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
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
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。

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
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
Authors:Hu Meisheng Zhang Fusheng
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.
Keywords:transmission electron microscope  calcareous dolomite  planer defect  saddle dolomite
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