Tag Archives: textural maturity

Carbonate Classification

Compare and contrast the carbonate classification schemes of Folk and Dunham. Carbonate rocks are composed of allochems and orthochems. Allochems are the outside components, effectively grains that are the equivalent of clasts in sandstones. Orthochems are the inside components, the … Continue reading

Posted in Geoscience | Tagged , , , , , , , , , , , , , , | Leave a comment

Sandstone Maturity

With reference to quartz arenites, feldspathic arenites and lithic arenites, explain what is meant by “sandstone maturity.” Mineralogy & Weathering Supracrustal rocks are those formed at the surface. Subcrustal rocks are those formed below the surface. Where minerals form impact … Continue reading

Posted in Geoscience | Tagged , , , , , , , , | Leave a comment