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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542by Im, Ulas, Christensen, Jesper H., Nielsen, Ole-Kenneth, Sand, Maria, Makkonen, Risto, Geels, Camilla, Andersson, Camilla, Kukkonen, Jaakko, Lopez-Aparicio, Susana, Brandt, JorgenGet access
Published in Atmospheric Chemistry and Physics (2019)
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543by Im, Ulas, Christensen, Jesper H., Nielsen, Ole-Kenneth, Sand, Maria, Makkonen, Risto, Geels, Camilla, Anderson, Camilla, Kukkonen, Jaakko, Lopez-Aparicio, Susana, Brandt, JørgenGet access
Published in Atmospheric Chemistry and Physics (2019)
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544by Im, Ulas, Christensen, Jesper H., Nielsen, Ole-Kenneth, Sand, Maria, Makkonen, Risto, Geels, Camilla, Anderson, Camilla, Kukkonen, Jaakko, Lopez-Aparicio, Susana, Brandt, JørgenGet access
Published in Atmospheric Chemistry and Physics (2019)
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545by Im, Ulas, Christensen, Jesper H., Nielsen, Ole-Kenneth, Sand, Maria, Makkonen, Risto, Geels, Camilla, Anderson, Camilla, Kukkonen, Jaakko, Lopez-Aparicio, Susana, Brandt, JørgenGet access
Published in Atmospheric Chemistry and Physics (2019)
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546
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547by Im, Ulas, Christensen, Jesper H., Nielsen, Ole-Kenneth, Sand, Maria, Makkonen, Risto, Geels, Camilla, Anderson, Camilla, Kukkonen, Jaakko, Lopez-Aparicio, Susana, Brandt, JørgenGet access
Published in Atmospheric Chemistry and Physics (2019)
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548
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549by Im, Ulas, Christensen, Jesper H., Nielsen, Ole-Kenneth, Sand, Maria, Makkonen, Risto, Geels, Camilla, Anderson, Camilla, Kukkonen, Jaakko, Lopez-Aparicio, Susana, Brandt, JørgenGet access
Published in Atmospheric Chemistry and Physics (2020)
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550
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551by Im, Ulas, Christensen, Jesper H., Nielsen, Ole Kenneth, Sand, Maria, Makkonen, Risto, Geels, Camilla, Anderson, Camilla, Kukkonen, Jaakko, Lopez-Aparicio, Susana, Brandt, JørgenGet access
Published in Atmospheric Chemistry and Physics (2019)
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552by van Beeck Calkoen, Suzanne T.S., Kuijper, Dries P.J., Sand, Håkan, Singh, Navinder J., van Wieren, Sip E., Cromsigt, Joris P.G.M.Get access
Published in Ecography (2018)
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553by Deraas, Trygve Sigvart, Hopstock, Laila Arnesdatter, Henriksen, André, Morseth, Bente, Sand, Anne-Sofie, Njølstad, Inger, Pedersen, Sigurd, Sagelv, Edvard Hamnvik, Johansson, Jonas, Grimsgaard, SamelineGet access
Published in Pilot and Feasibility Studies (2021)
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554by T. Iversen, M. Bentsen, I. Bethke, J. B. Debernard, A. Kirkevåg, Ø. Seland, H. Drange, J. E. Kristjansson, I. Medhaug, M. Sand, I. A. SeierstadGet access
Published in Geoscientific Model Development (2013)
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555by Ordiz Fernandez, Andres Avelino, Uzal, Antonio, Milleret, Cyril Pierre, Sanz-Perez, Ana, Zimmermann, Barbara, Wikenros, Camilla, Wabakken, Petter, Kindberg, Jonas, Swenson, Jon, Sand, HåkanGet access
Published in Scientific Reports (2020)
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556by Ordiz Fernandez, Andres Avelino, Uzal, Antonio, Milleret, Cyril Pierre, Sanz-Perez, Ana, Zimmermann, Barbara, Wikenros, Camilla, Wabakken, Petter, Kindberg, Jonas, Swenson, Jon, Sand, HåkanGet access
Published in Scientific Reports (2020)
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557by Petrich, Chris, Sand, Bjørnar, Patil, Aniket, Nilsen, Rune, Pettersen, Tore, Bonath, Victoria, Solberg, Knut Espen, Nyseth, Havard, Le Breton, Arnaud., Amland, Joachim, Sudom, D.Get access
Published 2014
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558Nocturnal foraging lifts time constraints in winter for migratory geese but hardly speeds up fuelingby Lameris, T.K., Dokter, A.M., van der Jeugd, H.P., Bouten, W., Koster, J., Sand, S.H.H., Westerduin, C., Nolet, B.A.Get access
Published in Behavioral Ecology (2021)
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559
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560by Fuchs, Boris, Zimmermann, Barbara, Wabakken, Petter, Bornstein, Set, Månsson, Johan, Evans, Alina, Liberg, Olof, Sand, Håkan, Kindberg, Jonas, Ågren, Erik O., Arnemo, Jon MartinGet access
Published in BMC Veterinary Research (2016)
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