Origins of the Arc Basin
详细信息
- 责任者：Hu Daoxiong (Karamay Logging Engineering Company ; Xibu Drilling Engineering Co. ; CNPC ; Karamay 834000 ; China) ; Cai Minghua
- 刊名：Xinjiang Petroleum Geology
- 出版年：2012
- 卷期：33(1)
- 关键词：弧后盆地 ; back-arc basins ; 弧前盆地 ; fore-arc basins
- 页码：p.120-124
- 图表：2 illus., 1 table, 6 refs.
- 分类号：0300
- 出版序号：20130022
- issnNo：ISSN1001-3873
- isbnNo：CN65-1107/TE
摘要
Arc basin refers to the fore-arc basin and back-arc basin, these have the same origin for their formation due to two periods of dehydration of the subducted oceanic crust. Based on the principle of thermal expansion and cold contraction of the substances, this paper presents an in-depth analysis of the factors of the arc basin’s origin with measured six types of volcanic rocks’ expansion coefficients, by which 3D expansion length, 1D string expansion length and subsiding scope are calculated and discussion of the dehydration process, continental subduction, origins of island arc and basin, etc. It is shown that the formation and evolution of the arc basin are the consequences of three types of forces.