福建太姥山晶洞碱长花岗岩地貌特征

Morphologic Characteristics of the Miarolitic Alkali Feldspar Granite in Taimushan Mountian,Fujian Province

太姥山是东南沿海低山丘陵唯一的花岗岩峰丛-石蛋地貌,燕山晚期"A"型晶洞碱长花岗岩是太姥山造景岩石,北东东、北北西向断裂、裂隙及节理是控制山峰形态和规模的主要构造,风化剥蚀、降水侵蚀和重力崩塌是地貌形成的主要外动力作用,目前该地貌演化处于壮年早期阶段。其构造位置特殊、成景岩性独特,地貌类型丰富,是东南沿海晶洞花岗岩山岳地貌的典型代表和宝贵的地质遗迹。

The Taimushan Mountain is a unique granite peak cluster and stone egg landform in the low mountains and hills of southeast China seacoast. The A-type miarolitic alkali feldspar granite of Late Yanshanian is the rock of forming the Taimushan landscape. The NEE and NNW-trending faults, fissures and cleavages are the basic structures of controlling the shape and size of mountain peaks. The weathering denudation, rainfall erosion and gravitational collapse are the major external power of forming the Taimushan landform. At present, the evolution of the landform is in the early stage of late-middle age. （）wing to the specific tectonic location, the unique landforming lithology and the abundant geomorphic types, the Taimushan Mountain is the typical representative and precious geologic relic of the mountairi landform of the miarolitic granites in the Southeast China seacoast.