<?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%">Smith, Sean Graham Whitney</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The origin and timing of late-stage carbonate cements in Devonian carbonates of the deep Alberta basin: Based on fluid inclusion and isotopic evidence</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">calcite phases</style></keyword><keyword><style  face="normal" font="default" size="100%">dolomite phases</style></keyword><keyword><style  face="normal" font="default" size="100%">saddle dolomites</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2001</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://search.proquest.com/docview/304766637</style></url></web-urls></urls><publisher><style face="normal" font="default" size="100%">McGill University</style></publisher><pub-location><style face="normal" font="default" size="100%">Montreal, QC </style></pub-location><volume><style face="normal" font="default" size="100%">Earth &amp; Planetary Science</style></volume><pages><style face="normal" font="default" size="100%">121 pages </style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Deep basin Leduc Obed and Swan Hills Simonette calcite fluid inclusions yielded Th ranges of 127 to 172°C and 122 to 158°C; while saddle dolomites have Th from 136 to 148°C and 133 to 162°C, respectively. Calcite data from the subsurface suggest a 20°C/km geothermal gradient and saddle dolomite data a gradient around 23°C. Vug-filling calcites from Spray Lakes, Parker's Ridge and Big Hill, yielded T h data (128.0 to 155.1°C) similar to vug-filling cements from Obed and Simonette. Fluids in the fracture-filling saddle dolomites analysed have an average T h of 171.6°C and salinity of 17.1. Post-thrusting fractures yielded calcites with the lowest Th and salinity suggesting precipitation from cooler, largely meteoric waters. Homogenization temperature data for vug and fracture-filling from subsurface and outcrops suggest that late calcite and dolomite phases were precipitated near maximum burial, in the Paleocene.

Many of the Obed and Simonette late-stage calcites and dolomites have very high 87 Sr/86 Sr signatures (up to 0.7370). Obed late calcites show a strong east to west increasing trend in Sr isotopes across the buildup--suggesting fault control of this margin. (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%">Obed, Swan Hills</style></custom2><custom3><style face="normal" font="default" size="100%">http://www.worldcat.org/oclc/898142276</style></custom3><custom4><style face="normal" font="default" size="100%">Science</style></custom4></record></records></xml>