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Elastic Anisotropy of Deformation Zones: From Lab Measurements to Real Seismic Data, an Example from Eastern Sweden
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Geophysics.
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences, Geophysics.
2013 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Estimation of elastic anisotropy, which is usually caused by rock fabrics and mineral orientation, has animportant role in exploration seismics and better understanding of crustal seismic reflections. If notproperly taken care of during processing steps, it may lead to wrong interpretation or distorted seismicimage. In this paper, a state-of-the-art under development Laser Doppler Interferometer (LDI) device isused to measure anisotropy of rock samples from a major deformation zone in the Bergslagen region ineastern Sweden. Results are then used to correct for the anisotropy effects using a non-hyperbolic moveoutequation. The resulting stacked section shows partial improvement of the deformation zone compared withthe isotropic processing section. This suggests that rock anisotropy may also contribute to generation ofreflections from the deformation zones in the study area but requires further investigations.

Place, publisher, year, edition, pages
2013.
National Category
Geophysics
Identifiers
URN: urn:nbn:se:uu:diva-286459DOI: 10.3997/2214-4609.20130756OAI: oai:DiVA.org:uu-286459DiVA: diva2:921539
Conference
75th EAGE Conference & Exhibition incorporating SPE EUROPEC 2013
Available from: 2016-04-20 Created: 2016-04-20 Last updated: 2016-06-29Bibliographically approved

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Publisher's full texthttp://earthdoc.eage.org/publication/publicationdetails/?publication=68585

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Malehmir, Alireza

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