<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Nazar, Brad</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">An interpretive study of multicomponent seismic data from the Carrot Creek area of west-central Alberta</style></title></titles><dates><year><style  face="normal" font="default" size="100%">1991</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://search.proquest.com/docview/303873557</style></url></web-urls></urls><pub-location><style face="normal" font="default" size="100%">University of Calgary</style></pub-location><pages><style face="normal" font="default" size="100%">120</style></pages><language><style face="normal" font="default" size="100%">en</style></language><abstract><style face="normal" font="default" size="100%">In 1987, two multicomponent seismic lines were acquired in the Carrot Creek area of west-central Alberta. Analyses of the final processed seismic sections (P-P and P-SV) showed that interpretation of P-SV (radial-component) data can assist greatly in delineating geologic units, particularly the Cardium conglomerates of the Carrot Creek area.

The difference in Cardium responses of the P-P and P-SV stacks was found to be a result of their respective amplitude-versus-offset (AVO) responses. Forward modeling showed that, for the Cardium event, a polarity reversal occurs with offset with the P-P, but not the P-SV, data. This arises from the destructive interference of the near- and far-offsets of the P-P data upon stacking, whereas the radial-component offsets add constructively, producing a higher amplitude P-SV Cardium event. The P-P and P-SV data were most sensitive to variation in conglomerate thickness over the 0-1000 m and 500-2000 m offset ranges respectively. These results indicate that better imaging of the Cardium conglomerate could therefore be achieved by either limiting the offset range during acquisition or by generating offset-range stacks.

It was also found that Poisson's ratio for specific seismic intervals could be derived from the P-P and P-SV traveltimes. Since the Cardium conglomerate possesses a low Poisson's ratio (0.18-0.22) relative to surrounding shales (0.31), this interval analysis was capable of identifying variations in conglomerate thickness by presence of lows in the calculated Poisson's ratio. (Abstract shortened by UMI.)</style></abstract><issue><style face="normal" font="default" size="100%">M. Sc.</style></issue><custom1><style face="normal" font="default" size="100%">Geology</style></custom1><custom2><style face="normal" font="default" size="100%">Carrot Creek</style></custom2><custom3><style face="normal" font="default" size="100%">http://www.worldcat.org/oclc/29796374</style></custom3><custom4><style face="normal" font="default" size="100%">Science</style></custom4></record></records></xml>