Integrative ArcGIS mapping study of direct hydrocarbon indicators within the Shelburne Subbasin of the Scotian Slope, Nova Scotia

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dc.contributor.advisor Ventura, G. T. (G. Todd)
dc.coverage.spatial Nova Scotia
dc.creator Owino, Yaisa Dipna
dc.date.accessioned 2023-05-23T15:02:43Z
dc.date.available 2023-05-23T15:02:43Z
dc.date.issued 2023-04-23
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/31751
dc.description 1 online resource (182 pages) : illustrations (chiefly colour), colour maps, charts (chiefly colour), graphs (chiefly colour)
dc.description Includes abstract and appendices.
dc.description Includes bibliographical references (pages 138-147).
dc.description.abstract Seepage data can provide evidence for hydrocarbon migration from underlying mature source rocks. In this study, ArcGIS coupled with seismic analysis of the Shelburne 3D seismic survey is used to better constrain the prospectivity of petroleum systems underlying the Scotian Slope. In this study, the seismic attributes root mean square amplitude (RMS) and coherence were used to identify near-surface expressions of hydrocarbon migration from the Shelburne 3D seismic volume. The RMS amplitude maps reveal amplitude anomalies including direct hydrocarbon indicators (DHIs) above salt features that are likely related to the presence of hydrocarbon-bearing sediments. Coherence maps were used to highlight seafloor and subsurface discontinuities such as paleo-pockmarks and polygonal faults, which are subsurface fluid escape mechanisms. The DHIs are commonly associated with these fluid escape structures. The presence of these two features suggest hydrocarbons are migrating from deeper within the Shelburne Subbasin implying the presence of an active petroleum system within the deeper Scotian Slope. en_CA
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dc.description.provenance Made available in DSpace on 2023-05-23T15:02:43Z (GMT). No. of bitstreams: 1 Owino_Yaisa_MASTERS_2023.pdf: 19764690 bytes, checksum: ac1378f1b62a891f4e898d6b0e91c59e (MD5) Previous issue date: 2023-04-23 en
dc.language.iso en en_CA
dc.publisher Halifax, N.S. : Saint Mary's University
dc.subject.lcsh Hydrocarbons -- Nova Scotia
dc.subject.lcsh Hydrocarbon reservoirs -- Nova Scotia
dc.subject.lcsh Petroleum -- Prospecting -- Nova Scotia
dc.subject.lcsh Seepage -- Nova Scotia
dc.title Integrative ArcGIS mapping study of direct hydrocarbon indicators within the Shelburne Subbasin of the Scotian Slope, Nova Scotia en_CA
dc.type Text en_CA
thesis.degree.name Master of Science in Applied Science
thesis.degree.level Masters
thesis.degree.discipline Geology
thesis.degree.grantor Saint Mary's University (Halifax, N.S.)
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