Late Cenozoic seismic stratigraphy of the Andaman Forearc Basin, Indian Ocean

Abstract Interpretation of new multichannel seismic reflection data from the Andaman Forearc Basin (AFB) in the northern Indian Ocean is presented here. The high-quality multichannel seismic data from the Andaman Forearc region enable us to examine the seismic characters and to demarcate seismic seq...

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Autores principales:	Dhananjai K. Pandey, Goli Anitha, Ramesh Prerna, Anju Pandey
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2017
Materias:	Andaman Forearc Basin Neogene Uplift Invisible Bank Outerarc Stratigraphy Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/ad0a903a18d84d74900ebda8844ba34d
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spelling	oai:doaj.org-article:ad0a903a18d84d74900ebda8844ba34d2021-12-02T04:57:11ZLate Cenozoic seismic stratigraphy of the Andaman Forearc Basin, Indian Ocean10.1007/s12182-017-0197-71672-51071995-8226https://doaj.org/article/ad0a903a18d84d74900ebda8844ba34d2017-11-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-017-0197-7https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract Interpretation of new multichannel seismic reflection data from the Andaman Forearc Basin (AFB) in the northern Indian Ocean is presented here. The high-quality multichannel seismic data from the Andaman Forearc region enable us to examine the seismic characters and to demarcate seismic sequences bounded by distinct unconformities. Ages of marked seismic horizons have been calibrated with available litholog data from nearby industry boreholes. Seismic interpretation of new data shows that the AFB is filled with ~ 4.5-s-two way travel time (TWT) thick Neogene to Recent sediments. The entire basin assemblage exhibits two distinct major sequences pertaining to the Neogene and Quaternary times. A large part of the basin is filled with intermittent mass transport deposits (MTD). We infer that the episodic uplift of the Invisible Bank, protuberance of the outerarc and regular deformation through reactivation of preexisting normal faults since the Pleistocene could be attributed as causal mechanisms for the MTDs. Strong bottom simulating reflectors are identified in the Late Miocene and younger sediments of the outerarc and AFB at a depth of ~ 0.6 s TWT and correspond to the presence of gas hydrates in this region. Our interpretations have significant implications for geodynamic as well as resource exploration in the AFB.Dhananjai K. PandeyGoli AnithaRamesh PrernaAnju PandeyKeAi Communications Co., Ltd.articleAndaman Forearc BasinNeogeneUpliftInvisible BankOuterarcStratigraphyScienceQPetrologyQE420-499ENPetroleum Science, Vol 14, Iss 4, Pp 648-661 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Andaman Forearc Basin Neogene Uplift Invisible Bank Outerarc Stratigraphy Science Q Petrology QE420-499
spellingShingle	Andaman Forearc Basin Neogene Uplift Invisible Bank Outerarc Stratigraphy Science Q Petrology QE420-499 Dhananjai K. Pandey Goli Anitha Ramesh Prerna Anju Pandey Late Cenozoic seismic stratigraphy of the Andaman Forearc Basin, Indian Ocean
description	Abstract Interpretation of new multichannel seismic reflection data from the Andaman Forearc Basin (AFB) in the northern Indian Ocean is presented here. The high-quality multichannel seismic data from the Andaman Forearc region enable us to examine the seismic characters and to demarcate seismic sequences bounded by distinct unconformities. Ages of marked seismic horizons have been calibrated with available litholog data from nearby industry boreholes. Seismic interpretation of new data shows that the AFB is filled with ~ 4.5-s-two way travel time (TWT) thick Neogene to Recent sediments. The entire basin assemblage exhibits two distinct major sequences pertaining to the Neogene and Quaternary times. A large part of the basin is filled with intermittent mass transport deposits (MTD). We infer that the episodic uplift of the Invisible Bank, protuberance of the outerarc and regular deformation through reactivation of preexisting normal faults since the Pleistocene could be attributed as causal mechanisms for the MTDs. Strong bottom simulating reflectors are identified in the Late Miocene and younger sediments of the outerarc and AFB at a depth of ~ 0.6 s TWT and correspond to the presence of gas hydrates in this region. Our interpretations have significant implications for geodynamic as well as resource exploration in the AFB.
format	article
author	Dhananjai K. Pandey Goli Anitha Ramesh Prerna Anju Pandey
author_facet	Dhananjai K. Pandey Goli Anitha Ramesh Prerna Anju Pandey
author_sort	Dhananjai K. Pandey
title	Late Cenozoic seismic stratigraphy of the Andaman Forearc Basin, Indian Ocean
title_short	Late Cenozoic seismic stratigraphy of the Andaman Forearc Basin, Indian Ocean
title_full	Late Cenozoic seismic stratigraphy of the Andaman Forearc Basin, Indian Ocean
title_fullStr	Late Cenozoic seismic stratigraphy of the Andaman Forearc Basin, Indian Ocean
title_full_unstemmed	Late Cenozoic seismic stratigraphy of the Andaman Forearc Basin, Indian Ocean
title_sort	late cenozoic seismic stratigraphy of the andaman forearc basin, indian ocean
publisher	KeAi Communications Co., Ltd.
publishDate	2017
url	https://doaj.org/article/ad0a903a18d84d74900ebda8844ba34d
work_keys_str_mv	AT dhananjaikpandey latecenozoicseismicstratigraphyoftheandamanforearcbasinindianocean AT golianitha latecenozoicseismicstratigraphyoftheandamanforearcbasinindianocean AT rameshprerna latecenozoicseismicstratigraphyoftheandamanforearcbasinindianocean AT anjupandey latecenozoicseismicstratigraphyoftheandamanforearcbasinindianocean
_version_	1718400971146526720

Late Cenozoic seismic stratigraphy of the Andaman Forearc Basin, Indian Ocean

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