福建永定仙湖洞发育与地质构造关系分析

The Analysis of the Relationship between the Development of Xianhu Karst Cave and Geological tectonic, in Yongding County, Fujian Province

福建永定仙湖洞为多层状喀斯特洞穴系统，发育于向斜核部的下三叠统溪口组（Ｔ１ｘ）鲕状石灰岩中，主要受到北东向和北西向两组断裂的控制．由于北东向压扭性断裂破碎影响带宽，更有利于喀斯特洞穴的发育形成，因而洞穴总体呈北东向延伸．

Xianhu karst cave system in Yongding county developes in the limestone of Xikou Formation of Lower Triassic and locates in the core of a synclinal structure The caves are dominated by the NE faults and NW faults Because the broken belts of the NE press- twist faults are wider and more favourable for the development of karst caves, the cave system generally stretches in NE orientation This paper analyses the relationship between the development of karst caves and geological-tectonic, and the control of the different dynamic characternic faults over the development of the karst caves