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Sand and sandstone formations

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  • Sandstone — is a sedimentary rock composed mainly of sand size mineral or rock grains. Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth s crust. Like sand, sandstone may be any color, but the most… …   Wikipedia

  • Navajo Sandstone — A prominent cuesta of Navajo Sandstone rims the edge of the San Rafael Swell in eastern Utah. Navajo Sandstone Type Geological formation …   Wikipedia

  • Marine geology of the Cape Peninsula and False Bay — Contents 1 Introduction 2 The geological structure of the region 2.1 Malmesbury group deposition 2.1.1 Appearance of the exposed Malmesbury group rocks …   Wikipedia

  • Nubian Sandstone — refers to a variety of sedimentary rocks deposited on the Precambrian Basement in the eastern Sahara, north east Africa and Arabia. It consist of continental sandstones with thin beds of marine limestones, and marls. Nubian sandstone was… …   Wikipedia

  • Confederate Gulch and Diamond City — Confederate Gulch is a steeply incised valley on the west facing slopes of the Big Belt Mountains. Its small stream drains westward into Canyon Ferry Lake, on the upper Missouri River Valley near present day Townsend, Montana. In 1864 Confederate …   Wikipedia

  • Old Red Sandstone — Stratigraphic range: Late Silurian to earliest Carboniferous Cross section showing quartz and chert pebbles in a sample from central England (scale bar is 10 mm). Type Geological formation …   Wikipedia

  • Entrada Sandstone — capped by Curtis Formation in Capitol Reef National Park s Cathedral Valley The Entrada Sandstone is a formation in the San Rafael Group that is spread across the U.S. states of Wyoming, Colorado, northwest New …   Wikipedia

  • Table Mountain sandstone — is a group of rock formations within the Cape Supergroup sequence of rocks. It s Ordovician age quartzitic sandstone which was deposited in a marine delta environment prone to wave action in pre Pangaean South Africa. After the sand was compacted …   Wikipedia

  • Coconino Sandstone — Stratigraphic range: Permian Type Sedimentary Sub units Harding Point Sandstone Member, Cave Spring Sandstone[1] Underlies Kaibab Limestone, Toroweap Formation …   Wikipedia

  • Wingate Sandstone — is a geologic formation in the Glen Canyon Group that is spread across the Colorado Plateau province of the United States, including northern Arizona, northwest Colorado, Nevada, and Utah. This rock formation is particularly prominent in… …   Wikipedia

  • sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …   Universalium

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