What is the main composition of Huangshan Mountain?

Huangshan Mountain is mainly composed of granite.

Huangshan Mountain has a geological history of 800 million years, integrating peak forest landforms and glacial remains, and has typical geological landscapes such as granite mold stones, granite caves and Quantanxi Waterfalls. The joints of Qianshan rock mass are sparse, multi-spherical and weathered, and the mountain is magnificent; Houshan rock mass is characterized by dense joints, multi-column weathering and steep mountain, which has formed the landform characteristics of "majestic front mountain and beautiful back mountain".

Before the formation of its peak forest structure, Huangshan experienced orogeny, crustal uplift, glaciers and natural weathering. Huangshan Mountain is dominated by Yanshanian granite, with developed vertical joints, strong erosion and cutting, staggered cracks and long-term water erosion, forming granite caves and passages.

topography

There are 72 peaks in Huangshan Mountain, which is known as "36 peaks and 36 small peaks". Lotus Peak, the main peak, is as high as 1864.8 meters above sea level. It is also called the three main peaks of Huangshan with Guangmingding and Tiandu Peak, and there are 77 peaks above 1000 meters around it. Huangshan Mountain has 30 ridges, 22 rocks, 7 caves and 2 passages.

Huangshan Mountain is also rich in Quaternary glacial remains, mainly distributed in the southeast of Qian Shan. Typical glacial landforms are as follows: Kuzhu River and Xiaoyao River are "U"-shaped valleys eroded by glacial movement; There are two V-shaped valleys on the eyebrows and the back of crucian carp, and the knife ridges left by planing; The top of Tiandu Peak is tinder left by ice bucket planing on three sides.

Baizhang Spring and Renzi Waterfall are glacier overhanging valleys formed by the confluence of glacial valley and glacier branches. In the riverbed terraces from Xiaoyaoxi to Tangkou, Wuniguan and Huangshi Dang, there are moraine stones accumulated by glaciers, which are said to be the "Dan Well" and "Medicine Mortar" of Xuanyuan Huangdi's alchemy, and also the mortar formed by glaciation.

Reference to the above content: Baidu Encyclopedia-Huangshan