THE PROGRESS AND APPLICATION IN CARBONATE MINERAL RESEARCH WITH EPMA AND CATHODOLUMINESCENCE TECHNIQUE
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摘要: 电子探针与阴极荧光谱仪相结合是目前应用于地质研究中的新方法。碳酸盐矿物的阴极荧光强度与微量元素分布及含量有关:方解石及白云石的阴极荧光与元素分布有相关性,方解石荧光强度与Mn含量相关,在较低的束流条件下Mn的存在可产生较强的荧光,较高的束流条件下Fe的存在使阴极荧光强度降低;低束流条件下清晰地显示不同类型的白云石的存在,自形白云石具有较强的阴极荧光,且具环带构造;而高束流条件下白云石阴极荧光的内部结构趋于消失。阴极荧光的强度与电子探针的Mn、Fe元素含量的控制、并与电子探针的元素分布相对应。电子探针与阴极荧光谱仪相结合是碳酸盐岩储层沉积环境、结构分析、胶结物序列、微量元素分析及孔隙演化分析的有效手段。Abstract: Detailed research with CL and EPMA on carbonate minerals shows that CL intensity on carbonate mineral is related with trace element contents and EPMA beam current,the CL image is correspondent with EPMA element distributing mapping:Calcite CL intensity is related with Mn contents and in less beam current Mn rich areas will emit stronger CL but in larger beam current with cloudy CL image because the exists of Fe that will decrease the CL intensity.The dolomite has a distinctively inner CL image with sometimes showing dolomite rings in less beam current,but with larger beam current the inner CL difference of dolomites disappeared,the CL intensity of dolomites are apparently related with Mn,Fe trace element mapping of EPMA and CL can gives more detail of the carbonate minerals.The CL and EPMA technique can be useful in carbonate reservoir texture,cement sequence and pore evolution analysis.
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Key words:
- cathodoluminescence /
- EPMA /
- CL intensity /
- element distribution /
- dolomite /
- calcite
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[1] 陈丽华,缪昕,于众.扫描电镜在地质上的应用[M].北京:科学出版社,1986. [2] 刘伟新,承秋泉,王延斌,等.油气储层特征微观分析技术及其应用[J].石油实验地质,2006,28(10):489-492. [3] 刘伟新,王延斌,郭莉,等.扫描电镜/环境扫描电镜在油气地质研究中的应用[J].电子显微学报,2006,25(增刊):321-322. [4] MARTIN R W,EDWARDS P R,O’DONNELL K P,et al.Cathodoluminescence spectral mapping of Ⅲ-nitride structures[J].Phys Status Solidi A,2004,201:665. [5] GALLOWAY S A,MILLER P,THOMAS P,et al.Advances in cathodoluminescence characterization of compound semiconductors with spectrum imaging[J].Phys Status Solidi C,2003,0(3):1028-1032. [6] 赵红,张荣,谢自力,等.阴极荧光联合分析系统在Ⅲ族氮化物研究中的应用[J].半导体学报,2008,29(6):1184-1188. [7] 陈莉,徐军,苏犁,等.场发射环境扫描电子显微镜上阴极荧光谱仪特点及其在锆石研究中的应用[J].自然科学进展,2005,15(11):1403-1408. [8] 周剑雄,陈振宇.电子探针下锆石等矿物的阴极发光研究[J].中国地质,2001,28(12):37-38. [9] 陈振宇,周剑雄.扫描电镜/电子探针中的阴极发光技术在地质学中的某些应用研究[J].电子显微学报,2004,23(4):463-463. [10] 张绍平,顿铁军.阴极发光显微镜在岩矿鉴定方面的应用[J].西安地质学院学报,1985,11(1):40-49. [11] 于炳松.阴极发光显微镜在碳酸盐岩研究中的应用及其进展[J].地质科技情报,1992,11(4):92-96. [12] 王春梅,黄思静,裴昌蓉,等.西湖凹陷古近系碳酸盐阴极发光特征分析[J].断块油气田,2008,15(2):1-3. [13] 黄思静,卿海若,胡作维,等.川东三叠系飞仙关组碳酸盐岩的阴极发光特征与成岩作用[J].地球科学:中国地质大学学报,2008:33(1):26-34. [14] 孙靖,黄小平,金振奎,等.碳酸盐矿物阴极发光性的控制因素分析[J].沉积与特提斯地质,2009,29(1):102-108. [15] 杨勇,陈能松.电子探针微区紫外阴极荧光分析系统及在沉积碎屑岩分析中的应用[J].地球科学:中国地质大学学报,2003,28(3):357-360. -
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