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- Arkose abstract "Arkose /ˈɑrkoʊz/ is a detrital sedimentary rock, specifically a type of sandstone containing at least 25% feldspar. Arkosic sand is sand that is similarly rich in feldspar, and thus the potential precursor of arkose. Quartz is commonly the dominant mineral component, and some mica is often present. Apart from the mineral content, rock fragments may also be a significant component. Arkose usually contains small amounts of calcite cement, which causes it to 'fizz' slightly in dilute hydrochloric acid; sometimes the cement also contains iron oxide. Arkose is typically grey to reddish in colour. The sand grains making up an arkose may range from fine to very coarse, but tends toward the coarser end of the scale. Fossils are rare in arkose, due to the depositional processes that form it, although bedding is frequently visible.Arkose is generally formed from the weathering of feldspar-rich igneous or metamorphic, most commonly granitic rocks, which are primarily composed of quartz and feldspar (called 'grus' as a sand). These sediments must be deposited rapidly and/or in a cold or arid environment such that the feldspar does not undergo significant chemical weathering and decomposition; therefore arkose is designated a texturally immature sedimentary rock. Arkose is often associated with conglomerate deposits sourced from granitic terrain and is often found above unconformities over such granitic terrain.The central Australian monolith Uluru (Ayers Rock) is composed of late Neoproterozoic/Cambrian arkose, deposited in the Amadeus Basin.".
- Arkose thumbnail Arkosesand.jpg?width=300.
- Arkose wikiPageID "1701057".
- Arkose wikiPageRevisionID "590734951".
- Arkose hasPhotoCollection Arkose.
- Arkose subject Category:Sandstone.
- Arkose subject Category:Sedimentary_rocks.
- Arkose type Abstraction100002137.
- Arkose type Material114580897.
- Arkose type Matter100020827.
- Arkose type Part113809207.
- Arkose type PhysicalEntity100001930.
- Arkose type Relation100031921.
- Arkose type Rock114696793.
- Arkose type SedimentaryRock114698000.
- Arkose type SedimentaryRocks.
- Arkose type Substance100019613.
- Arkose comment "Arkose /ˈɑrkoʊz/ is a detrital sedimentary rock, specifically a type of sandstone containing at least 25% feldspar. Arkosic sand is sand that is similarly rich in feldspar, and thus the potential precursor of arkose. Quartz is commonly the dominant mineral component, and some mica is often present. Apart from the mineral content, rock fragments may also be a significant component.".
- Arkose label "Arcosa".
- Arkose label "Arcosa".
- Arkose label "Arcose".
- Arkose label "Arkose".
- Arkose label "Arkose".
- Arkose label "Arkose".
- Arkose label "Arkose".
- Arkose label "Arkoza".
- Arkose label "Аркозы".
- Arkose label "أركوز".
- Arkose sameAs Arkóza.
- Arkose sameAs Arkose.
- Arkose sameAs Arcosa.
- Arkose sameAs Arkosa.
- Arkose sameAs Arkose.
- Arkose sameAs Arcosa.
- Arkose sameAs Arkose.
- Arkose sameAs Arkoza.
- Arkose sameAs Arcose.
- Arkose sameAs m.05phpw.
- Arkose sameAs Q673812.
- Arkose sameAs Q673812.
- Arkose sameAs Arkose.
- Arkose wasDerivedFrom Arkose?oldid=590734951.
- Arkose depiction Arkosesand.jpg.
- Arkose isPrimaryTopicOf Arkose.
