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Wackestone
Mud-supported carbonate rock that contains greater than 10% grains / From Wikipedia, the free encyclopedia
Under the Dunham classification (Dunham, 1962[1]) system of limestones, a wackestone is defined as a mud-supported carbonate rock that contains greater than 10% grains. Most recently, this definition has been clarified as a carbonate-dominated rock in which the carbonate mud (<63 μm) component supports a fabric comprising 10% or more very fine-sand grade (63 μm) or larger grains but where less than 10% of the rock is formed of grains larger than sand grade (>2 mm).[2]
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![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/7/78/DunhamWackestone.jpg/640px-DunhamWackestone.jpg)