干旱区生态环境知识资源中心(Arid): The dissolution mechanism and karst development of carbonate rocks in karst rocky desertification area of Zhenfeng-Guanling-Huajiang County, Guizhou, China

Arid

DOI	10.1007/s13146-017-0386-x
	The dissolution mechanism and karst development of carbonate rocks in karst rocky desertification area of Zhenfeng-Guanling-Huajiang County, Guizhou, China
	Bai, You’en 1,2; Liu, Qi 1,2,3; Gu, Zhanfei 1,2; Lu, Yaoru 1,2; Sheng, Zhuping 3
通讯作者	Liu, Qi
来源期刊	CARBONATES AND EVAPORITES
ISSN	0891-2556
EISSN	1878-5212
出版年	2019
卷号	34 期号:1 页码:45-51
英文摘要	The phenomenon of rocky desertification is obvious in karst plateau of Guizhou, China, and the distribution area of slight-medium-severe rocky desertification is very large in Zhenfeng-Guanling-Huajiang, Guizhou. To explore the cause of formation and development of rocky desertification in the region, the karst development mechanism and characteristics were studied by the method of indoor dissolution test and microscopic analysis. The results show that the dissolution and karst features of carbonate rocks are closely related to geological structure, hydrogeological conditions, and lithology. The dissolution rate is the most affected by the chemical composition and mineral composition, followed by the pore structure and the particle feature. The dissolution rate of carbonate is in positive proportion with the calcite content, while it decreases with increasing content of dolomite. In the same chemical composition, the rock with the finer grains has a faster surface dissolution rate. In addition, the erosion amount will change with the pore aperture and connectivity. Karst morphology is mainly affected by the microstructure and mineral assemblage characteristics of carbonate rocks. In this rocky desertification area, bare rock over a large area will be further eroded, which will form the stone bud, stone forest. At the same time, the hydrodynamic effect of groundwater will erode the rock deeply, and the depression, karst funnel, or deep valley will appear gradually.
英文关键词	Karst rocky desertification Carbonate rocks Dissolution experiment Karst development
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000460049000005
WOS类目	Geology
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214789
作者单位	1.Tongji Univ, Dept Geotech Engn, Coll Civil Engn, Shanghai 200092, Peoples R China; 2.Tongji Univ, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai 200092, Peoples R China; 3.Texas A&M AgriLife Res Ctr El Paso, El Paso, TX 79927 USA
推荐引用方式 GB/T 7714	Bai, You’en,Liu, Qi,Gu, Zhanfei,et al. The dissolution mechanism and karst development of carbonate rocks in karst rocky desertification area of Zhenfeng-Guanling-Huajiang County, Guizhou, China[J],2019,34(1):45-51.
APA	Bai, You’en,Liu, Qi,Gu, Zhanfei,Lu, Yaoru,&Sheng, Zhuping.(2019).The dissolution mechanism and karst development of carbonate rocks in karst rocky desertification area of Zhenfeng-Guanling-Huajiang County, Guizhou, China.CARBONATES AND EVAPORITES,34(1),45-51.
MLA	Bai, You’en,et al."The dissolution mechanism and karst development of carbonate rocks in karst rocky desertification area of Zhenfeng-Guanling-Huajiang County, Guizhou, China".CARBONATES AND EVAPORITES 34.1(2019):45-51.