干旱区生态环境知识资源中心(Arid): 鄂尔多斯盆地白垩纪沙漠石英沙颗粒表明特征

Arid

	鄂尔多斯盆地白垩纪沙漠石英沙颗粒表明特征
其他题名	Microscopic Features on Quartz Sand Grain Surface in the Cretaceous Desert of Ordos Basin
	江新胜 1; 徐金沙 2; 潘忠习 2
来源期刊	沉积学报
ISSN	1000-0550
出版年	2003
卷号	21 期号:3 页码:416-422
中文摘要	沉积环境的判别是沉积盆地分析、古地理、古气候研究和储层评价的重要手段。石英具有较大的硬度和较高的化学稳定性，因而其沉积物颗粒表面特征能很好地反映沉积环境，而通过扫描电镜研究石英颗粒表面微细特征是分析沉积环境行之有效的方法。尽管鄂尔多斯盆地早白垩纪志丹群存在沙漠沉积已被广为接受，但石英颗粒表面微细特征分析还比较薄弱。对采自鄂尔多斯盆地白垩纪志丹群洛河组（K_1lh）的沙丘陵进行石英颗粒表面微细特征分析的结果表明，其石英沙颗粒表面特征具有明显的风成特征，及易与水成特征相区别。因此，本研究从石英沙颗粒表面特征方面进一步肯定了鄂尔多斯盆地的白垩纪古沙漠的存在。
英文摘要	The determination of depositional environments is an effective means for basin analysis, palaeo-geography and palaeoclimate study and oil reservoir judgement. Quartz has relative high hardness and chemical stability, therefore its sedimentary grain surface features can well reflect the depositional environments. And using electronic scan microscope to study quartz grain surface microscopic features is also an effective method to analyz Depositionsl environments. Although it has been widely accepted that there occurred desert sediments in the early Cretaceous Zhidan Group in the Ordos Basin, the systematic analysis of quartz sand grain surface microscopic features is lack. This paper shows the result of the quartz sand grain surface microscopic feature analysis from the Louhe Formation and Luohandong Formation of the early Cretaceous Zhidan Group in the Ordos Basin. It reaches that the microscopic features are of distinct eolian characteristics and the analysis can easily distinguish eolian from hydrogenic sediments. Therefore, our study confirms the existence of the Cretaceous desert in the Ordos Basin with the respect of quartz sand surface microscopic features.
中文关键词	鄂尔多斯盆地 ; 白垩纪沙漠 ; 石英沙颗粒表明特征
英文关键词	Ordos Basin Cretaceous desert quartz sand grain surface features
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOLOGY
WOS研究方向	Geology
CSCD记录号	CSCD:1305608
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203869
作者单位	1.成都理工大学沉积地质研究所, 成都, 四川 610059, 中国; 2.中国地质调查局成都地质矿产研究所, 成都, 四川 610082, 中国
推荐引用方式 GB/T 7714	江新胜,徐金沙,潘忠习. 鄂尔多斯盆地白垩纪沙漠石英沙颗粒表明特征[J],2003,21(3):416-422.
APA	江新胜,徐金沙,&潘忠习.(2003).鄂尔多斯盆地白垩纪沙漠石英沙颗粒表明特征.沉积学报,21(3),416-422.
MLA	江新胜,et al."鄂尔多斯盆地白垩纪沙漠石英沙颗粒表明特征".沉积学报 21.3(2003):416-422.