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  2. List of sandstones - Wikipedia

    en.wikipedia.org/wiki/List_of_sandstones

    Bäch Sandstone: by the Lake Zürich; Bern Sandstone: quarry sites near Bern in Ostermundigen, Krauchthal and by the Gurten; Bollingen Sandstone (also Buchberg Sandstone, Uznaberg Sandstone, Bollinger-Lehholz Sandstone and Güntliweid Sandstone): Rapperswil-Jona by the Upper Lake Zürich; Grès à cailloux roulés: near Avenches; Grès de ...

  3. Weathering rind - Wikipedia

    en.wikipedia.org/wiki/Weathering_rind

    Although sometimes confused with weathering rinds, spheroidal weathering is a different type of chemical weathering in which spherical layers of weathered material progressively develop in situ around blocks of jointed bedrock beneath the Earth's surface, rather than in reworked and transported clasts such as cobbles and boulders. [4] [5]

  4. Sandstone - Wikipedia

    en.wikipedia.org/wiki/Sandstone

    Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains, cemented together by another mineral. Sandstones comprise about 20–25% of all sedimentary rocks. [1] Most sandstone is composed of quartz or feldspar, because they are the most resistant minerals to the weathering processes at the Earth's ...

  5. Arkose - Wikipedia

    en.wikipedia.org/wiki/Arkose

    Arkose (/ ˈ ɑːr k oʊ s,-k oʊ z /) or arkosic sandstone [1] is a detrital sedimentary rock, specifically a type of sandstone containing at least 25% feldspar. [ 2 ] [ 3 ] Arkosic sand is sand that is similarly rich in feldspar, and thus the potential precursor of arkose.

  6. Honeycomb weathering - Wikipedia

    en.wikipedia.org/wiki/Honeycomb_weathering

    Honeycomb weathering, also known as honeycombs, honeycombed sandstone, is a form of cavernous weathering that consists of regular, tightly adjoining, and commonly patterned cavities that are developed in weathered bedrock; are less than 2 cm (0.79 in) in size; and resemble a honeycombed structure.

  7. Wikipedia : Picture peer review/Sandstone concretion

    en.wikipedia.org/.../Sandstone_concretion

    The Concretions often get weathered out from the wall. At the next image you could see few spheres Concretions, which were found in a close proximity. Descriptions dating from the 18th century attest to the fact that concretions have long been regarded as fascinating geological curiosities.

  8. Aquia Creek sandstone - Wikipedia

    en.wikipedia.org/wiki/Aquia_Creek_sandstone

    Aquia Creek sandstone is a brown to light-gray freestone used extensively in building construction in Washington, D.C. in the late 18th and early 19th centuries. Quarried at Aquia Creek in Stafford County, Virginia , the stone was valuable for its ease of shaping and the quarry's proximity to the tidewater portion of the Potomac River , 45 ...

  9. Residuum (geology) - Wikipedia

    en.wikipedia.org/wiki/Residuum_(geology)

    Residuum is weathered rock that is not transported by erosion, contributing in time to the formation of soil.It is distinguished from other types of parent material in that it is composed solely of mineral, not organic, material, and it remains in place rather than being moved by the action of wind, water, or gravity.