摘要
渠县賨人谷景区的各类自然景观中,岩溶堆积物景观最具特色,对该类景观形成机理的探讨,能为有效保护这一自然旅游资源提供科学依据.本次研究在实地地貌调查的基础上,通过对各类岩溶堆积物景观形成机理的分析可知,景区内表生钙华、内生钙华、滴石景观的形成是水体中CO2损失导致碳酸钙过饱和的结果;钙质砾岩堆积带的成因则为河流对河床中砾石的搬运能力因气候转干而减弱,在景区内沉积的砾石被水流中的碳酸钙沉淀胶结成砾石条带,砾石条带随地壳隆升而被抬离水面;在部分岩溶洞穴中,还分布有被钙华体固结的植物落叶和曾被古植物根系占据的管道状孔隙.另外,景区内因水源渗漏造成岩溶堆积物景观急剧衰退这一现象应引起相关部门高度重视.
Karst accumulations are the most characteristic landscape in all kinds of natural landscapes in Con-gren valley of Qu county,Sichuan Province,In order to provide a scientific basis for protecting tourism resources the formation mechanism of Karst accumulations was studied. The results show that the formation of travertine and dripstone was connected with the supersaturated calcium carbonate,and the conglomerate cemented by calcium carbonate was uplifted from water surface with crustal uplift. There are the leaves consolidated by travertine and tubular porosities occupied by the roots of fossil plants in some karst caves. In addition,the decline of Karst accu-mulations should be paid great attention to as a result of water leakage.
出处
《绵阳师范学院学报》
2014年第8期14-18,共5页
Journal of Mianyang Teachers＇ College
基金
四川省教育厅自然科学重点项目(14ZA0129)
关键词
賨人谷
岩溶堆积物
形成机理
渠县
Congren valley
Karst accumulations
formation mechanism
Qu county
