地理学报(英文版)

Journal of Geographical Sciences ›› 2006, Vol. 16 ›› Issue (1): 45-56.doi: 10.1007/s11442-006-0105-3

• Climate and Environmental Change • Previous Articles     Next Articles

Danxia landform genesis of the Qiyun Mountain, Anhui Province

MA Chunmei1, ZHU Cheng1, PENG Hua2, ZHENG Chaogui1, XIANG Fusheng3, SUN Yufei4, HU Jiyuan5, ZHU Guanghui6, LU Jianjun7, CHENG Guanghua7   

  1. 1. Department of Urban and Resources Sciences, Nanjing University, Nanjing 210093, China
    2. Department of Geography, Zhongshan University, Guangzhou 510275, China
    3. People’s Government of Huangshan City, Huangshan 245000, China
    4. Department of Geography, Anhui Normal University, Wuhu 241000, China
    5. Bureau of Geology and Minerals, Huangshan City, Huangshan 245000, China
    6. Bureau of Archives in Tunxi District of Huangshan City, Huangshan 245000, China
    7. Managing Committee of Qiyun Mountain Scenic Spot, Xiuning County, Xiuning 245400, China
  • Received:2005-10-12 Revised:2005-12-01 Online:2006-03-25 Published:2006-03-25
  • Supported by:

    National Natural Science Foundation of China, No.0209131086; Doctoral Fund for Colleges and Universities of Ministry of Education, No.20050284011; “985 Project” construction of Physical Geography for Nanjing University and Foundation of Modern Analyses Center of Nanjing University

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Abstract:

The Danxia landform of Qiyun Mountain is mainly developed on the red granule conglomerates named Xiaoyan Group (K2x1) of middle Cretaceous series, which is controlled mainly by three faulted zones, namely, Jingdezhen-Qimen faulted zone, Jiangwan-Jiekou compressional faulted zone and Kaihua-Chun’an folding faulted zone. During the Cretaceous period, this area firstly experienced massif subsidence to become a continental faulted basin, then having thick Cretaceous red sediments accumulated on it. In the supervened neotectonism, this area experienced an uplifting process, which made the thick Cretaceous sediments into a mountain with an altitude of 500-600 m. After undergoing the processes of vertical joint development, weathering, denudation and transportation, as well as evidently differential weathering and denudation influenced by lithology and structure between sandstone and conglomerate, the grand Danxia landscape consisting of peak forests, steep cliffs, caves, mesas, castellated peaks, natural bridges and so on formed. The three nick points located respectively at 585 m, 400 m and 150 m generally reflect the three dominated uplifting processes during the neotectonism.

Key words: Qiyun Mountain, Danxia landform, landform genesis