The trinity of depositional phase of foreland basins: An example
from the western Taiwan foreland basin |
点此下载全文 |
引用本文:YU Ho-Shing.2009.The trinity of depositional phase of foreland basins: An example
from the western Taiwan foreland basin[J].地球学报,30(S1):90. |
DOI:10.3975/cagsb.2009.s1.35 |
摘要点击次数: 2343 |
全文下载次数: 2595 |
|
|
中文摘要:Due to oblique arc-continent collision, the west-ern Taiwan foreland basin has evolved into three dis-tinct subbasins: an over-filled basin proximal to the Taiwan orogen, mainly distributed in the Western Foothhils and Coastal Plain provinces, a filled basin occupying the shallow Taiwan Strait continental shelf west of the Taiwan orogen and an under-filled basin distal to the Taiwan orogen in the deep marine Kaop-ing Slope offshore southwest Taiwan, respectively. The over-filled depositional phase is dominated by fluvial environments across the structurally controlled piggy-back basins. The filled depositional phase in the Taiwan Strait is characterized by shallow marine en-vironments and is filled by Pliocene-Quaternary sedi-ments up to 4,000 m thick derived from the Taiwan orogen with an asymmetrical and wedge-shaped cross section. The under-filled depositional phase is charac-teristic of deep marine environments in the wedge-top basins accompanied by active structures of thrust faults and mud diapers. |
中文关键词:Depositional phase over-filled filled under-filled foreland basin Taiwan |
|
The trinity of depositional phase of foreland basins: An examplefrom the western Taiwan foreland basin |
|
|
Abstract:Due to oblique arc-continent collision, the west-ern Taiwan foreland basin has evolved into three dis-tinct subbasins: an over-filled basin proximal to the Taiwan orogen, mainly distributed in the Western Foothhils and Coastal Plain provinces, a filled basin occupying the shallow Taiwan Strait continental shelf west of the Taiwan orogen and an under-filled basin distal to the Taiwan orogen in the deep marine Kaop-ing Slope offshore southwest Taiwan, respectively. The over-filled depositional phase is dominated by fluvial environments across the structurally controlled piggy-back basins. The filled depositional phase in the Taiwan Strait is characterized by shallow marine en-vironments and is filled by Pliocene-Quaternary sedi-ments up to 4,000 m thick derived from the Taiwan orogen with an asymmetrical and wedge-shaped cross section. The under-filled depositional phase is charac-teristic of deep marine environments in the wedge-top basins accompanied by active structures of thrust faults and mud diapers. |
keywords:Depositional phase over-filled filled under-filled foreland basin Taiwan |
查看全文 查看/发表评论 下载PDF阅读器 |