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The AAPG/Datapages Combined Publications Database
Journal of Sedimentary Research (SEPM)
Abstract
Dolomitization, Silicification and Calcitization Patterns in Cambro-Ordovician Oolites from Northwest Scotland
Keene Swett
ABSTRACT
Diagenetic replacement phenomena involving dolomite, silica, and calcite are demonstrated from oolitic horizons in the Cambro-Ordovician "Durness" carbonates of northwest Scotland. The oolitic texture of the rocks has exerted a control over the patterns of diagenesis and facilitates the interpretation of the diagenetic history. A possible five-stage diagenetic sequence is proposed to account for the observed relationships of the recrystallization and authigenic phenomena.
A dilemma regarding a void filling interpretation of drusy calcite textures is demonstrated and arguments favoring the use of the term "calcitization" rather than "dedolomitization" are offered.
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