Journal of Geographical Sciences ›› 2009, Vol. 19 ›› Issue (5): 615-630.doi: 10.1007/s11442-009-0615-x

• Climate and Environmental Change • Previous Articles     Next Articles

Age and genesis of the Danxia landform on Jianglang Mountain, Zhejiang Province

ZHU Cheng1, PENG Hua2, LI Zhongxuan1, ZHANG Guangsheng1, LI Lan1, YU Jinbiao1, ZHU Guangyao3, OUYANG Jie1, ZHONG Yishun4, ZHU Qing1, ZHOU Shuqin5, ZHENG Chaogui4, ZHOU Riliang6, LI Dong5, ZHU Yuming5, LV Wen1, WU Honglin7, XU Longsheng1   

  1. 1. School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China|
    2. Department of Geography of Sun Yat-sen University, Guangzhou 510275, China|
    3. Department of Humanities and Social Sciences of Bengbu College, Bengbu 233050, Anhui, China|
    4. Department of Geography of Chuzhou University, Chuzhou 239012, Anhui, China|
    5. Scenery Tourism Authority of Jiangshan City, Zhejiang Province, Jiangshan 324100, Zhejiang, China|
    6. Zhejiang Construction Bureau, Hangzhou 310027, China|
    7. College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
  • Received:2008-12-30 Revised:2009-04-26 Online:2009-10-25 Published:2009-10-25
  • Supported by:

    National Natural Science Foundation of China, No.40871014; The Open Foundation of the State Key Laboratory of Loess and Quaternary Geology from the Institute of Earth Environment, CAS, No.SKLLQG0817; The Training Foundation of National Basis of Talents, No.J0630535; Foundation of Application of the World Natural Heritage from Zhejiang Province; Foundation of Modern Analyses Center of Nanjing University

Abstract:

Jianglang Mountain is situated at the transitional zone of South China fold-system, Jiangshan–Shaoxing deep fracture zone and Baoan–Xiakou–Zhangcun fracture zone. The forming of the Xiakou basin was attributed to the pull-apart fault depression by the above fractures in earlier Cretaceous, afterward, series deposits such as Guantou formation (K1g), Chaochuan formation (K1c) and Fangyan formation (K1f) which belong to Yongkang group, the lower Cretaceous layer accumulated in the Xiakou basin. In late Cretaceous, the above fractures occurred to extrude and the basin began to uplift, meanwhile, amounts of tension fissures and joints were produced since Cenozoic, which accelerated water-dicing into bed-rock. Consequently, landform-building processing: weathering, eroding and collapsing etc. were prevalent as finally to develop the so-called Danxia landform. The Jianglang Mountain landscape zone of the Danxia landform to apply for world natural relics are relying on unique and unparalleled peak, sky-split valley with vivid stones and reviving of platform. What is more, there is significance of study at lithology, stratigraphy and paleo-biology. According to dating for specimen of ophitic vein through-crossing the Yongkang group of Yafeng Peak by K-Ar method, this article revealed the uplift age of red-bed basin to be 77.89±2.6 MaBP (K2) i.e. late Cretaceous, and it is the first chronological datum of Danxia landform research in China.

Key words: Zhejiang, Jianglang Mountain, Danxia landform, landform development, landform genesis