Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Acta Geographica Sinica》 2002-03
Add to Favorite Get Latest Update

Relationship between the Formation of the First Bent of Changjiang River and the Magmatic Activity in Laojunshan District

ZENG PushengInstitute of Minera1 Resources, Chinese Academy of Geo1ogical Sciences, Beijing100037, China  
Based on field observations, the author proposes a new understanding on the formation of theFirst Bent of the Changjiang River. It is the first time to study the relationship between the formation of theFirst Bent of the Changjiang River and Eocene magmatic activity, suggesting that the First Bent of theChangjiang River is the result from choking of the strong magma activity in Eocene. As a result, theupstream of the river became a natural reservoir, with channel bursting into breach between Mt. Yulong andMt. Haba, making Jinshajiang River run eastward. At the same time, the plateau uplift and the drasticdissection of river channel led to the formation of the Tiger Leaping Gorge. Taking Mt. Yulong as a base,the magnitude of uplifting in the study area (located in the eastern of the Tibetan Plateau) is calculated, withthe magnitude being 3300 m from Eocene to Pliocene, adding 700 m since Pleistocene, totaling 4000 m orso.
【Fund】: 国土资源部资源与环境科技攻关项目(95-02-001-02)
【CateGory Index】: P931.2
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved