收稿日期: 2011-05-25
修回日期: 2011-09-28
网络出版日期: 2011-12-10
基金资助
甘肃省科学院应用技术研究与开发计划项目“甘肃易滑坡地层的工程地质性质研究”（编号：2008-YS-JK-14）；教育部西部灾害与环境力学重点实验室开放基金项目“陇南、甘南易滑坡地层强度特征研究”(编号：klmwde201004) 资助.
The Definition of the Ancient Landslide Age with the 14C Dating of Hanlingou River Basin in Wudu
Received date: 2011-05-25
Revised date: 2011-09-28
Online published: 2011-12-10
吴玮江，叶伟林，孟兴民，王宗礼 . 武都汉林沟流域古滑坡年龄的14C厘定[J]. 地球科学进展, 2011 , 26(12) : 1276 -1281 . DOI: 10.11867/j.issn.1001-8166.2011.12.1276
The ancient landslides were usually formed in the period of earth evolvement before Holocene. Landslides of Hanlingou River Basin grew well in the different periods during the Epipleistocene and their characteristics present as being on a large scale and in large quantity. It gives several typical examples to study the development of landslides of the middle reach of the Bailongjiang River in Wudu. The ancient landslides grew well by analysis of the topography and characteristics of structure of landslide and contact relations of strata. The research results also show that the water resources from Hanlingou was cut off to form barrier lakes by earthquake and many old trees were buried. Now, a large number of the remains of plants remain in the landslides. According to the 14C dating from the root of a tree, the ancient landslides grew about 42.0~44.8 ka BP.
Key words： Ancient slide; Growth history of landslide; 14C dating; Hanlingou
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