浅析四川通江诺水河地质公园岩溶景观成因

诺水河地质公园内完整保留了岩溶作用各阶段的地质现象,形成了主题突出、类型多样的地质遗迹景观组合。该区出露了厚达2248m的石灰岩地层,为岩溶作用提供了丰富的物质基础。自0．65亿年的古近纪以来受推覆构造影响,使区内地壳呈阶段式上升,产生大量水平裂隙和纵张裂隙,为岩溶作用提供了良好的通道。岩溶洞内形态万千、绚丽多彩的钙华景观则是含Ca^2＋的水流经滴水作用、面状流水作用、池水作用、协同水作用、毛细管和旋卷流水作用的杰作。

A Brief Talk on Genesis of Karst Landscape in the Nuoshuihe Geopark, Tongjiang, Sichuan

There are all the karst landscapes in the Nuoshuihe Geopak which form many and varied geoheritage landscape associations.Limestone with a thickness of 2248 m is exposed in this region which lays material foundation for karstification.Since the Paleogene(65 Ma),napping has resulted in step-type cymatogeny and a great deal of horizontal and vertical fissures which provide good channel for karstification.The travertine landscape in karst caves should be attributed to Ca+2-rich running water action.