地理学报 ›› 2009, Vol. 64 ›› Issue (1): 21-32.doi: 10.11821/xb200901003

• 环境变迁 • 上一篇    下一篇

浙江江郎山丹霞地貌发育的年代与成因

朱诚1, 彭华2, 李中轩1, 俞锦标1, 李兰1, 张广胜1, 朱光耀3, 欧阳杰1, 钟宜顺4, 朱青1, 周书勤5, 郑朝贵4, 周日良6, 李东5, 朱雨鸣5, 吕文1, 武弘麟7   

  1. 1. 南京大学地理与海洋科学学院,南京210093;
    2. 中山大学地理系,广州510275;
    3. 安徽蚌埠学院人文与社会科学部,蚌埠233050;
    4. 安徽滁州学院地理系,滁州239012;
    5. 浙江江山市风景旅游管理局,江山324100;
    6. 浙江省建设厅,杭州310027;
    7. 北京大学城市与环境学院,北京100871
  • 收稿日期:2008-07-25 修回日期:2008-11-02 出版日期:2009-01-25 发布日期:2010-08-03
  • 作者简介:朱诚(1954-),男,博士,教授,博士生导师,中国地理学会会员,主要从事地貌与第四纪研究。 E-mail: zhuchengnj@yahoo.com.cn
  • 基金资助:

    国家自然科学基金项目(40871014);浙江省建设厅申报世界遗产项目和南京大学现代分析中心测试基金共同 资助成果

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 Shunqin5, ZHENG Chaogui4, ZHOU Riliang6, LI Dong5, ZHU Yuming5, LV Wen1, WU Honglin7   

  1. 1. School of Geographic and Oceanographic Sciences,Nanjing University,Nanjing 210093,China;
    2. Department of Geography,Sun Yat-sen University,Guangzhou 510275,China;
    3. Department of Humanities and Social Sciences,Bengbu College,Bengbu 233050,Anhui,China;
    4. Department of Geography,Chuzhou University,Chuzhou 239012,Anhui,China;
    5. Scenery Tourism Authority of Jiangshan City,Jiangshan 324100,Zhejiang,China;
    6. Zhejiang Construction Bureau,Hangzhou 310027,China;
    7. College of Urban and Environmental Sciences,Peking University,Beijing 100871,China
  • Received:2008-07-25 Revised:2008-11-02 Online:2009-01-25 Published:2010-08-03
  • Supported by:

    National Natural Science Foundation of China, No.40871014;Foundation of application of the World Natural Relics (WNR) from Zhejiang Province and Foundation of Modern Analyses Center of Nanjing University

摘要:

江郎山位于华南褶皱系、江山—绍兴深断裂和保安—峡口—张村断裂带之间。白垩纪早期这两大断裂的拉张断陷导致峡口盆地的形成, 随之主要有下白垩统永康群馆头组(K1g)、 朝川组(K1c) 和方岩组(K1f) 在盆地中的沉积。白垩纪晚期上述两大断裂发生强烈挤压活动, 峡口盆地逐渐隆升。新生代以来, 峡口盆地在构造抬升中, 产生大量张断裂和节理, 加速了对岩体的切割, 以及岩体被切割后的崩塌, 导致了丹霞地貌的发育。江郎山丹霞地貌申报世界自然遗产的主要依据是其特有的壮观而独特的老年期孤峰—巷谷以及生动而逼真的象形石 丹霞地貌特征、独特的地台活化现象与重要的岩石学科学研究意义以及该区特有的重要事件地层学和古生物学研究的科学意义。本文根据对江郎山亚峰垂直贯穿于丹霞地貌岩层永康群 中辉绿岩脉标本K-Ar 法的测年, 揭示了当地峡口红层盆地抬升的时代为晚白垩世77.89±2.6 Ma BP (K2), 这也是我国目前丹霞地貌研究中所测得的可靠年代学数据。

关键词: 浙江, 江郎山, 丹霞地貌, 地貌发育, 地貌成因

Abstract:

The Jianglang Mountain is situated at the transitional zone of South China fold-system, Jiangshan-Shaoxing deep rip belt and Baoan-Xiakou-Zhangcun rip belt. The formation of the Xiakou basin was a result of the tensioning of the above mentioned two rips in early Cretaceous, afterward, series deposits such as Guantou formation (K1g), Chaochuan formation (K1c) and Fangyan formation (K1f) which belong to Yongkang group, lower Cretaceous phase, were gradually built, whilst the rips occurred to extrude and the basin began to rise in late Cretaceous. Meanwhile, amounts of tension fissures and joints have been produced since Cenozoic, accelerating down-cutting velocity in base rock. Consequently, landform-building activities such as weathering, eroding and collapsing etc. were prevalent as finally to develop the Danxia landform. The main sceneries to apply for world natural relics are relying on unique and unparalleled peak, split valley with vivid stones and reviving of platform. What is more, it is significant to study lithology, stratigraphy and paleo-biology. According to dating for specimen of dolerite vein through the Yongkang group of Mt. Yafeng by K-Ar method, this article revealed the uplift age of red-bed basin to be 77.89±2.6 Ma BP (K2), i.e., late Cretaceous, the first chronological datum of Danxia landform research in China.

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