National Science Library, Chinese Academy of Sciences
  登录 机构网站 ENGLISH
您当前的位置是:首页->详细浏览

Structural Characteristics of the Andaman Forearc Inferred from Interpretation of Multichannel Seismic Reflection Data期刊论文

作者: Anitha GOLI Dhananjai K. PANDEY
DOI:10.1111/1755-6724.12279

服务链接:
页码: 1145-1156
被引频次: 8
出版者: WILEY-BLACKWELL,Wiley Subscription Services, Inc
ISSN: 1000-9515,0001-5717
卷期: Volume:88    Issue:4
语言: English
摘要: The Andaman Forearc Basin (AFB) is asymmetric in configuration and filled with a-6 km-thick pile of Neogene to Recent sediments (-4 s in two-way travel time: TWT) with distinct zonation. It shows gradual thinning up to -3 km (0.8 s in TWT) towards the eastern end with a seabed gradient of 1:30. Thick deformed sediments -2 s (TWT) of the Outerarc are associated with intense faulting and occasional folding caused by recent tectonics. Development of a series of faults within the upwarped sedimentary column of Oligocene top to Recent is observed with a rotated fault block. These features are manifestations of Recent igneous intrusion, and reveal the presence of a mild N-S compressional regime. Its effect on the AFB resulted in further uplift of sediments, which can now be seen as the Invisible Bank. Forward gravity modelling supporting our seismic interpretation reveals that it is associated with igneous intrusion from the Moho (-9 km depth), and also suggests that continental crust underlies the AFB. Strong Bottom Simulating Reflector (BSR)-like features in the Miocene sediments of Outerarc and Forearc basin at a depth of 0.6 s below the seabed suggest the inferred probable occurrence of gas hydrates in the AFB.
相关主题: 火成岩侵入, 近代沉积物, 弧前盆地, 解释结构, 地震反射资料, 空军基地, 天然气水合物, Tertiary hydrocarbon potential, Andaman, tectonics, upwarp, Indian Ocean, Structural geology, INDONESIA, NORTHEASTERN INDIAN-OCEAN, REGION, MARGIN, GEOSCIENCES, MULTIDISCIPLINARY, EVOLUTION, BASIN, GEOMETRY, HISTORY, Seismic reflection method, Ocean bottom, Neotectonics, Tectonics (Geology),

相关文献推荐:

问图书管理员更多图书管理员

学科咨询馆员
学科馆员

电话:
邮件:
问图书馆员

图标说明

在线获取原文 原文传递 详细信息 图书在架状态 图书馆际互借 问图书馆员

常见问题

图书馆开放时间 图书馆位置 借阅要求 您在使用中发现的任何错误,都可以向我们 【报告错误】,非常感谢!

作者信息:×