Please use this identifier to cite or link to this item: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/4735
Full metadata record
DC FieldValueLanguage
dc.contributor.advisorSARKAR, SUDIPTAen_US
dc.contributor.authorSARDAR, SMRUTIen_US
dc.date.accessioned2020-06-16T11:32:42Z-
dc.date.available2020-06-16T11:32:42Z-
dc.date.issued2020-04en_US
dc.identifier.urihttp://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/4735-
dc.description.abstractSeismic reflection data is useful for unravelling the subsurface fluid migration patterns and can help to understand the plumbing system. The study presents the seismic stratigraphic framework and fluid migration features of a 12000 km stretch of the U.S. Atlantic margin at water depths of 150 m (shelf break) to 5000 m (abyssal zone). The high‐resolution multichannel seismic reflection data reveal the presence of a gas hydrate system, such as a bottom simulating reflector (BSR), gas‐charged sediments, and fluid pathways on the continental slope. The new seismic data helps to extend the previously reported gas hydrate BSR into deeper waters. The BSR derived geothermal gradient shows lateral variation, such as isolated high anomalies related to salt diapirs on the upper continental slope. Salt pierced sedimentary strata. The gas hydrate stability field becomes thinner above the conical salt diapir. The seismic analysis and numerical modelling suggest that the diapirs are due to salt and not due to the mobilization of shale or other sedimentary rocks. At the continental rise, a silica diagenetic reflector is identified as an opal-A to opal-CT conversion boundary. Silica diagenesis releases water and builds high pore fluid pressure. Such pressure facilitates vertical fluid migration that transports diagenetic fluids to the seafloor creating pockmarks. On the upper continental slope, a buried mass transport complex occurs. Rapid sediment delivery from the outer shelf and shelf-break caused by low sea-level during Miocene could have triggered a submarine slide or slump.en_US
dc.language.isoenen_US
dc.subjectStratigraphy,en_US
dc.subjectFluid migrationen_US
dc.subjectSeismic faciesen_US
dc.subjectBottom simulating reflectoren_US
dc.subjectGas hydrateen_US
dc.subject2020en_US
dc.titleSeismic stratigraphic framework and Fluid migration patterns of the rifted continental margin offshore North Carolinaen_US
dc.typeThesisen_US
dc.type.degreeBS-MSen_US
dc.contributor.departmentDept. of Earth and Climate Scienceen_US
dc.contributor.registration20151157en_US
Appears in Collections:MS THESES

Files in This Item:
File Description SizeFormat 
Smruti Raju Sardar 20151157.pdfMS Thesis4.64 MBAdobe PDFView/Open    Request a copy


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.