English
 
Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

Development of secondary porosity in the Fairholme carbonate complex (southwest Alberta, Canada)

Authors

Vandeginste,  Veerle
External Organizations;

Swennen,  Rudy
External Organizations;

/persons/resource/sgleeson

Gleeson,  S. A.
0 Pre-GFZ, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Ellam,  Rob M.
External Organizations;

Osadetz,  Kirk
External Organizations;

Roure,  François
External Organizations;

External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in GFZpublic
Supplementary Material (public)
There is no public supplementary material available
Citation

Vandeginste, V., Swennen, R., Gleeson, S. A., Ellam, R. M., Osadetz, K., Roure, F. (2006): Development of secondary porosity in the Fairholme carbonate complex (southwest Alberta, Canada). - Journal of Geochemical Exploration, 89, 1-3, 394-397.
https://doi.org/10.1016/j.gexplo.2005.11.088


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_1943893
Abstract
Because of their economic importance as hydrocarbon reservoirs, the Upper Devonian dolomitized carbonate reefs in southwest Alberta have been the subject of several studies. Still, there is no consensus on the process of matrix dolomitization and furthermore, the process of vug development is not often addressed. The studied outcrops show features of an early diagenetic matrix-selective dolomitization by a Late Devonian seawater-derived fluid. Seepage reflux dolomitization combined with latent reflux is proposed, which best explains most chemical characteristics. The cements in the vugs are precipitated from warm saline, Sr-87-enriched fluids and testify to thermogenic sulphate reduction based on the presence of sulphur, CO2 and H2S in inclusions, relatively high homogenization temperatures and depleted delta C-13 values, which sets constraints on the timing of vug formation. Secondary porosity may be created by the mixing of formation water with a tectonically and topographically driven fluid and by the dissolution of anhydrite nodules.