Coupling relationship among speleothems, geological background and cave environment
Based on landscape formation mechanism and its principles for karst landform and speleothems,"cave"--the jointly processing object--has been studied through dynamical coupling methods and system.A cave has been studied by correlating its regional geological background,internal and extemal environment with speleothems formation organically.A coupling system for speleothems formation has been thus created,which has generalized the content,characteristics and significance.At the same time,it has examined the regional geological background of Shuijing Cave in Bama of Guangxi,the external environment (climatic features and evolution,CO2 source and conversion of karst water,evolution of recharge and development of karst water,vegetation,soil types and soil covering features,etc.)and internal environment (infiltration patterns and amount of karst water from cave wall,cave atmosphere,CO2 content,temperature and humidity,etc.) systematically.Besides,ithas also analyzed the coupling process of speleothems formation in Shuijing Cave comprehensively.According to different regional tectonic movement extents and speleothems' features in different geological periods,the coupling process of the speleothems formation could be identified into 4 recyclable periods:(1) early stable period of regional tectonic movement--the speleothems were formed and developed;(2) middle stable period of regional tectonic movement--the speleothems were developed in large scale;(3) late stable period of regional tectonic movement--the speleothems were developed slowly or even ceased growing;(4)intermittent regional tectonic movement--the speleothems began to collapse.
NETL
NSTL
万方数据
维普
