Effect of soil-rock system on speleothems weathering in Bailong Cave, Yunnan Province, China

编号 zgly0000369047

文献类型 期刊论文

文献题名 Effect of soil-rock system on speleothems weathering in Bailong Cave, Yunnan Province, China

作者 王静  宋林华 

作者单位 InstituteofGeographicSciencesandNaturalResourcesResearch  InstituteofGeographicSciencesandNaturalResourcesResearch 

母体文献 Journal of Zhejiang University Science;浙江大学学报: B卷英文版 

年卷期 2005,6(3)

页码 202-207

年份 2005 

分类号 P931.5 

关键词 土壤  岩石  洞穴堆积物  风化作用  云南  白龙洞 

文摘内容 Bailong Cave with its well-developed Middle Triassic calcareous dolomite's system was opened as a show cave for visitors in 1988. The speleothem scenery has been strongly weathered as white powder on the outer layers. Study of the cave winds,permeability of soil-rock system and the chemical compositions of the dripping water indicated: (1) The cave dimension structure distinctively affects the cave winds, which were stronger at narrow places. (2) Based on the different soil grain size distribution,clay was the highest in composition in the soil. The response sense of dripping water to the rainwater percolation was slow. The density of joints and other openings in dolomite make the dolomite as mesh seepage body forming piles of thin and high columns and stalactites. (3) Study of 9 dripping water samples by HYDROWIN computer program showed that the major mineral in the water was dolomite。