Limestone is classed as which of the three main rock types?
Tamala Limestone Cervantes clearly show the limestone formation through the sedimentary process. At its thickest, the Tamala Limestone comprises the massive Zuytdorp Cliffs, up to 250 m high, extending for 150 km between Kalbarri, Western Australia and south of Steep Point. Because of its ready availability, Tamala Limestone is used extensively for landscaping and building in Western Australia and particularly for the main population centre of Perth. The two main sub-types quarried commercially are "Carabooda Limestone" and "Moore River Limestone". The Carabooda type is from the Wanneroo/Yanchep region close to Perth. It has a creamier colour and is slightly denser than Moore
Kaibab Limestone are known as the Rock Canyon conglomerate. Within the Marble Canyon and eastern Grand Canyon regions and south into Verde Valley, upper contact of the Kaibab Limestone with the Moenkopi Formation is an erosional disconformity. This disconformity exhibits little relief and is identified by marked differences in color, topography, and rock types between tan, ledge-forming, calcareous sandstones and of the Kaibab Limestone and red, slope-forming siltstones of the Moenkopi formation. The unconformity and disconformity are inferred to represent most of Permian time (including the Leonardian) and part of Early Triassic time. Although the Moenkopi Formation overlies the Kaibab Limestone, its