File:Mississipian Limestone Mackay Blaze Canyon (23657287346).jpg - Wikipedia

Limestone - Wikipedia

Lunar Meteorite: Northwest Africa 773 clan, Some Meteorite Information

Comb Ridge in Utah involves east dipping strata of the Jurassic Navajo Sandstone (the main yellow/white sandstone), Kayenta Fo…

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File:Columnar-jointed rhyolitic obsidian lava flow (Roaring Mountain Member, Plateau Rhyolite, Upper Pleistocene, ~59 ka; Obsidian Cliff, Yellowstone, Wyoming, USA) 5 (46817937031).jpg - Wikimedia Commons

Major limestone quarry proposed for Parleys Canyon

Canyon - Wikipedia

KGS--Bull. 206, part 1--Carbonate Facies of the Swope Limestone Formation, Southeast Kansas

KGS--Bull. 206, part 1--Carbonate Facies of the Swope Limestone Formation, Southeast Kansas