Carbonate Rock Classification

Wackestone

1. Wackestone

Carbonate mud, micrite matrix-supported; skeletal grains (benthic foraminifers, gastropods) > 10%.

Thin section kindly provided by T. Geel, Vrije Universiteit, Amsterdam

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2. Wackestone

Carbonate mud, micrite matrix-supported; skeletal grains (crinoids and sponge spicules, Tithonian, Upper Jurassic) > 10%.

Thin section kindly provided by T. Geel, Vrije Universiteit, Amsterdam

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3. Wackestone

Carbonate mud, micrite matrix-supported; skeletal and non-skeletal grains (crinoids, sponge spicules, peloids) > 10%.

Thin section kindly provided by T. Geel, Vrije Universiteit, Amsterdam

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4. Wackestone to Packstone

Micrite matrix-supported to locally grain-supported (due to bioturbation) with micrite matrix between the grains; skeletal grains (upper Cretaceous planktonic foraminifera) > 10%.

Thin section kindly provided by T. Geel, Vrije Universiteit, Amsterdam

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Miliolid foraminifer

Gastropod

Wackestone

Sponge spicule

Wackestone

Crinoid ossicle

Wackestone to Packstone

Planktonic foraminifer Marginotruncana sp.

Wackestone

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Miliolid foraminifer

Gastropod

Wackestone

Sponge spicule

Wackestone

Crinoid ossicle

Wackestone to Packstone

Planktonic foraminifer Marginotruncana sp.