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Recent dolomitization of quaternary biocalcarenites from fuerteventura (Canary Islands)

Recent dolomitization of quaternary biocalcarenites from fuerteventura (Canary Islands) Quaternary marine and eolian biocalcarenites in the supratidal breaker and spray zone along the Barlovento coast of the peninsula Jandía, Fuerteventura (Canary Islands) are dolomitized by percolating brines with a high Mg/Ca ratio resulting from evaporation of seawater on the sediment's surface. Only fragments of calcareous algae primarily consisting of high-magnesian calcite are replaced by a cryptocrystalline variety of dolomite. Dolomite also occurs in large euhedral crystals in intraparticle and interparticle pore spaces. In the marine biocalcarenite dolomite has a composition of Ca56Mg44(CO3)2. It is well ordered. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Contributions to Mineralogy and Petrology Springer Journals

Recent dolomitization of quaternary biocalcarenites from fuerteventura (Canary Islands)

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References (9)

Publisher
Springer Journals
Copyright
Copyright © 1966 by Springer-Verlag
Subject
Earth Sciences; Geology; Mineral Resources; Mineralogy
ISSN
0010-7999
eISSN
1432-0967
DOI
10.1007/BF00518020
Publisher site
See Article on Publisher Site

Abstract

Quaternary marine and eolian biocalcarenites in the supratidal breaker and spray zone along the Barlovento coast of the peninsula Jandía, Fuerteventura (Canary Islands) are dolomitized by percolating brines with a high Mg/Ca ratio resulting from evaporation of seawater on the sediment's surface. Only fragments of calcareous algae primarily consisting of high-magnesian calcite are replaced by a cryptocrystalline variety of dolomite. Dolomite also occurs in large euhedral crystals in intraparticle and interparticle pore spaces. In the marine biocalcarenite dolomite has a composition of Ca56Mg44(CO3)2. It is well ordered.

Journal

Contributions to Mineralogy and Petrology – Springer Journals

Published: Oct 7, 2004

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