Siliciclastic: Difference between revisions
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{{Short description|Type of rocks that are almost exclusively silica-bearing}} |
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[[File:Cross beds transitionnal shoreface morocco.jpg|thumb|Cross beds in siliciclastic shoreface sediment (Agadir-Essaouira Basin, Morocco)]] |
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'''Siliciclastic''' (or ''siliclastic''<ref name=Allaby2013>{{cite book |last1=Allaby |first1=Michael |title=A dictionary of geology and earth sciences |date=2013 |publisher=Oxford University Press |location=Oxford |isbn=9780199653065 |edition=Fourth|chapter=siliclastic}}</ref>) rocks are [[clastic]] non[[carbonate]] [[sedimentary rocks]] that are composed primarily of silicate minerals, such as [[quartz]] or [[clay minerals]]. Siliciclastic rock types include [[mudrock]], [[sandstone]], and [[Conglomerate (geology)|conglomerate]].<ref name=Allaby2013/><ref name=Jackson1997>{{cite book |editor1-last=Jackson |editor1-first=Julia A. |title=Glossary of geology. |date=1997 |publisher=American Geological Institute |location=Alexandria, Virginia |isbn=0922152349 |edition=Fourth |chapter=siliciclastic}}</ref> |
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Siliciclastic sediments are silica-based sediments, lacking carbon compounds, which are formed from pre-existing rocks, by breakage, transportation and redeposition to form sedimentary rock.<ref name=schlumberger>[https://www.glossary.oilfield.slb.com/Terms/s/siliciclastic_sediment.aspx Oilfield Glossary: siliciclastic sediment.] Retrieved 23 August 2018.</ref> |
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[[Silicate]] rocks have a crystal structure containing the tetrahedra SiO4, either isolated or joined to one or more oxygen atoms to form groups, chains, sheets, or structures. They are classified according to their [[crystal]] structure. For example: [[nesosilicate]], [[sorosilicate]], [[cyclosilicate]], [[inosilicate]], phyllosillicate]], [[tectosillicate]]. |
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==References== |
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{{reflist|refs= |
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[[Category:Sedimentary rocks]] |
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{{Petrology-stub}} |
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Latest revision as of 16:02, 17 January 2023
Siliciclastic (or siliclastic[1]) rocks are clastic noncarbonate sedimentary rocks that are composed primarily of silicate minerals, such as quartz or clay minerals. Siliciclastic rock types include mudrock, sandstone, and conglomerate.[1][2]
Siliciclastic sediments are silica-based sediments, lacking carbon compounds, which are formed from pre-existing rocks, by breakage, transportation and redeposition to form sedimentary rock.[3]
References
[edit]- ^ a b Allaby, Michael (2013). "siliclastic". A dictionary of geology and earth sciences (Fourth ed.). Oxford: Oxford University Press. ISBN 9780199653065.
- ^ Jackson, Julia A., ed. (1997). "siliciclastic". Glossary of geology (Fourth ed.). Alexandria, Virginia: American Geological Institute. ISBN 0922152349.
- ^ Oilfield Glossary: siliciclastic sediment. Retrieved 23 August 2018.
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