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The AAPG/Datapages Combined Publications Database

AAPG Special Volumes

Abstract

Pub. Id: A038 (1962)

First Page: 108

Last Page: 121

Book Title: M 1: Classification of Carbonate Rocks--A Symposium

Article/Chapter: Classification of Carbonate Rocks According to Depositional Textures

Subject Group: Reservoirs--Carbonates

Spec. Pub. Type: Memoir

Pub. Year: 1962

Author(s): Robert J. Dunham (2)

Abstract:

Three textural features seem especially useful in classifying those carbonate rocks that retain their depositional texture (1) Presence or absence of carbonate mud, which differentiates muddy carbonate from grainstone; (2) abundance of grains, which allows muddy carbonates to be subdivided into mudstone, wackestone, and packstone; and (3) presence of signs of binding during deposition, which characterizes boundstone. The distinction between grain-support and mud-support differentiates packstone from wackestone--packstone is full of its particular mixture of grains, wackestone is not. Rocks retaining too little of their depositional texture to be classified are set aside as crystalline carbonates.

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