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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract

Volume: 49 (1965)

Issue: 3. (March)

First Page: 258

Last Page: 276

Title: Geochemical Criteria for Differentiating Reef From Non-Reef Facies in Carbonate Rocks

Author(s): R. Chester (2)

Abstract:

The distribution of numerous trace elements has been studied in a series of reef and non-reef carbonates in order to determine their value as facies indicators. Ni, Co, Cr, V, Ba, and Sr were determined in the carbonates and all found to be significantly more abundant in the non-reef facies. These trace elements and the ratios Cr and Ni, Ni and V, and Ba and Sr may be used as facies indicators. Ni, Co, Cr, V, Pb, Ga, and Cu were determined in the separated acid-soluble fraction of the carbonates and the contents of Co and V were found to be significantly more abundant in the non-reef facies. In the acid-soluble fraction Co and V and the ratios Ni and Co, Cr and V, Pb and Ga, and Cu and Co may be used as facies indicators.

The data obtained from these carbonates of Devonian age from the Sturgeon Lake reef area of Alberta, Canada, indicate that a geochemical differentiation can be made between the carbonates of boreholes drilled in the reef facies and those of boreholes drilled in the non-reef facies.

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