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dc.contributor.authorHerrero Isern, Juan-
dc.contributor.authorArtieda, Octavio-
dc.contributor.authorHudnall, Wayne H.-
dc.date.accessioned2009-09-28T06:55:59Z-
dc.date.available2009-09-28T06:55:59Z-
dc.date.issued2009-11-
dc.identifier.citationSoil Sci Soc Am J 73:1757-1763 (2009)en_US
dc.identifier.issn0361-5995-
dc.identifier.urihttp://hdl.handle.net/10261/17186-
dc.descriptionThis manuscript was approved for publication as manuscript # T-4-599 by the College of Agricultural and Natural Resources, Texas Tech University, Lubbock, TX.en_US
dc.description.abstractThe familiarity of mankind with gypsum and its simple composition are in contrast with the frequent mistakes reported for its behavior and role in nature. Gypsum has been studied as a raw material, as a rock constituent, as an indicator of geological and archaeological conditions, and from other points of view. However, its role in Earth surface processes, its relationship to life through calcium in the equilibrium of carbonates and its structural water molecules, seems overlooked. Moreover, errors of gypsum formulation, analysis, and behavior obscure some of its roles within nature. The semi-solubility of gypsum explains its actions in many soils. The softness, fragility, and crystal water of gypsum are often not considered. Routinely drying at 105°C and pulverizing samples for lab analyses casts suspicion on all analytical results because gypsum becomes anhydrite and/or bassanite at this temperature. Specific physicochemical models are needed to predict the behavior of soils mainly composed of gypsum.en_US
dc.description.sponsorshipThis work was partially supported by funds of the Spanish Government: project AGL2006-01283, and grant PR2007-0453. Additional support was from a Texas USDA-NRCS grant 68-7442-6-752, and from the Department of Plant and Soil Science, Texas Tech University, Lubbock, TX.en_US
dc.format.extent47216 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoengen_US
dc.publisherSoil Science Society of Americaen_US
dc.rightsopenAccessen_US
dc.titleGypsum, a Tricky Materialen_US
dc.typeArtículoen_US
dc.identifier.doi10.2136/sssaj2008.0224-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://soil.scijournals.org/cgi/content/full/73/6/1757en_US
dc.identifier.e-issn1435-0661-
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