Sand
![Sand [[dune](https://upload.wikimedia.org/wikipedia/commons/8/8b/Libya_4608_Idehan_Ubari_Dunes_Luca_Galuzzi_2007.jpg)
The composition of sand varies, depending on the local rock sources and conditions, but the most common constituent of sand in inland continental settings and non-tropical coastal settings is silica (silicon dioxide, or SiO2), usually in the form of quartz.
Calcium carbonate is the second most common type of sand, for example, aragonite, which has mostly been created, over the past 500million years, by various forms of life, like coral and shellfish. For example, it is the primary form of sand apparent in areas where reefs have dominated the ecosystem for millions of years, as in the Caribbean. Somewhat more rarely, sand may be composed of calcium sulfate, such as gypsum and selenite, as is found in places such as White Sands National Park and Salt Plains National Wildlife Refuge in the U.S.
Sand is a non-renewable resource over human timescales, and sand suitable for making concrete is in high demand. Desert sand, although plentiful, is not suitable for concrete. Fifty billion tons of beach sand and fossil sand are used each year for construction. Provided by Wikipedia
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361by Wikenros, Camilla, Sand, Håkan, Månsson, Johan, Maartmann, Erling, Eriksen, Ane, Wabakken, Petter, Zimmermann, BarbaraGet access
Published 2020
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362by Gervasi, Vincenzo, Sand, Håkan, Zimmermann, Barbara, Mattisson, Jenny, Wabakken, Petter, Linnell, John D. C.Get access
Published 2016
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363by Gervasi, Vincenzo, Sand, Håkan, Zimmermann, Barbara, Mattisson, Jenny, Wabakken, Petter, Linnell, John D. C.Get access
Published 2016
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364by Gervasi, Vincenzo, Sand, Håkan, Zimmermann, Barbara, Mattisson, Jenny, Wabakken, Petter, Linnell, John D.C.Get access
Published in Ecological Applications (2013)
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365by Sand, Maria, Berntsen, Terje Koren, Ekman, Annica M.L., Lewinschal, Anna, Hansson, Hans-ChristenGet access
Published in Atmospheric Chemistry and Physics (2020)
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366
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367by Sand, Maria, Berntsen, Terje K., Ekman, Annica M. L., Hansson, Hans-Christen, Lewinschal, AnnaGet access
Published in Atmospheric Chemistry and Physics (2020)
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368by Im, Ulas, Sand, Maria, Makkonen, Risto, Christensen, Jesper H., Nielsen, Ole-Kenneth, Brandt, JørgenGet access
Published 2021
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369by Jamemo, Anders, Mysterud, Atle, Nöremark, Maria, kjellander, Petter, Sand, Håkan, Wikenros, Camilla, Andrén, HenrikGet access
Published 2019
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370by Mahmood, Rashed, Salzen, Knut, Flanner, Mark, Sand, Maria, Langner, Joakim, Wang, Hailong, Huang, LinGet access
Published in Journal of Geophysical Research: Atmospheres (2016)
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372by Åkesson, Mikael, Flagstad, Øystein, Aspi, Jouni, Kojola, Ilpo, Liberg, Olof, Wabakken, Petter, Sand, HåkanGet access
Published in Conservation Genetics (2021)
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373
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374by Åkesson, Mikael, Flagstad, Oystein, Aspi, Jouni, Kojola, Ilpo, Liberg, Olof, Wabakken, Petter, Sand, HåkanGet access
Published 2021
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375
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376by Milleret, Cyril, Wabakken, Petter, Liberg, Olof, Åkesson, Mikael, Flagstad, Øystein, Andreassen, Harry, Sand, HåkanGet access
Published 2016
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377by Liberg, Olof, Chapron, Guillaume, Wabakken, Petter, Pedersen, Hans Christian, Hobbs, N. Thompson, Sand, HåkanGet access
Published 2012
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378by Erik Versluijs, Ane Eriksen, Boris Fuchs, Camilla Wikenros, Håkan Sand, Petter Wabakken, Barbara ZimmermannGet access
Published in Frontiers in Ecology and Evolution (2022)
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379
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380by Versluijs, Erik, Eriksen, Ane, Fuchs, Boris, Wikenros, Camilla, Sand, Håkan, Wabakken, Petter, Zimmermann, BarbaraGet access
Published in Frontiers in Ecology and Evolution (2022)
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