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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403by Odland, J. O., Romanova, N., Sand, G., Thomassen, Y., Salbu, B., Lund, Eiliv, Nieboer, E.Get access
Published 1997
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404by Ordiz, Andrés, Milleret, Cyril, Kindberg, Jonas, Månsson, Johan, Wabakken, Petter, Swensson, J E, Sand, HåkanGet access
Published 2015
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405by Milleret, Cyril, Wabakken, Petter, Liberg, Olof, Åkesson, Mikael, Flagstad, Øystein, Andreassen, Harry Peter, Sand, HåkanGet access
Published 2017
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406by Di Bernardi, Cecilia, Wikenros, Camilla, Hedmark, Eva, Boitani, Luigi, Ciucci, Paolo, Sand, Håkan, Åkesson, MikaelGet access
Published in Ecology and Evolution (2021)
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407by Di Bernardi, Cecilia, Wikenros, Camilla, Hedmark, Eva, Boitani, Luigi, Ciucci, Paolo, Sand, Håkan, Åkesson, MikaelGet access
Published 2021
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409by Ordiz, Andres, Milleret, Cyril, Kindberg, Jonas, Månsson, Johan, Wabakken, Petter, Swenson, Jon E., Sand, HåkanGet access
Published 2015
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411by Di Bernardi, Cecilia, Wikenros, Camilla, Hedmark, Eva, Boitani, Luigi, Ciucci, Paolo, Sand, Håkan, Åkesson, MikaelGet access
Published 2021
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412by Di Bernardi, Cecilia, Wikenros, Camilla, Hedmark, Eva, Boitani, Luigi, Ciucci, Paolo, Sand, Håkan, Åkesson, MikaelGet access
Published 2021
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413by Cecilia Di Bernardi, Camilla Wikenros, Eva Hedmark, Luigi Boitani, Paolo Ciucci, Håkan Sand, Mikael ÅkessonGet access
Published in Ecology and Evolution (2021)
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414by Milleret, Cyril, Wabakken, Petter, Liberg, Olof, Åkesson, Mikael, Flagstad, Øystein, Andreassen, Harry Peter, Sand, HåkanGet access
Published in Journal of Animal Ecology (2016)
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415by Mikael Åkesson, Cyril Milleret, Harry P. Andreassen, Øystein Flagstad, Petter Wabakken, Håkan Sand, Olof LibergGet access
Published in Journal of Animal Ecology (2016)
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416by Milleret, Cyril, Wabakken, Petter, Liberg, Olof, Åkesson, Mikael, Flagstad, Øystein, Andreassen, Harry Peter, Sand, HåkanGet access
Published in Journal of Animal Ecology (2016)
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417by Milleret, Cyril, Wabakken, Petter, Liberg, Olof, Åkesson, Mikael, Flagstad, Øystein, Andreassen, Harry Peter, Sand, HåkanGet access
Published 2016
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418by Cecilia Di Bernardi, Camilla Wikenros, Eva Hedmark, Luigi Boitani, Paolo Ciucci, Håkan Sand, Mikael ÅkessonContributors: “...Sand, Håkan...”
Published in Ecology and Evolution (2021)
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