Brine-mineral reactions in evaporite basins: Implications for the composition of ancient oceans

Research Article| March 01, 2001 Brine-mineral reactions in evaporite basins: Implications for the composition of ancient oceans C. Ayora; C. Ayora 1Institut de Ciències de la Terra Jaume Almera, Consejo Superior de Investigaciones Científicas, Lluis Solé Sabarís, s/n 08028 Barcelona, Spain Search for other works by this author on: GSW Google Scholar D.I. Cendón; D.I. Cendón 1Institut de Ciències de la Terra Jaume Almera, Consejo Superior de Investigaciones Científicas, Lluis Solé Sabarís, s/n 08028 Barcelona, Spain Search for other works by this author on: GSW Google Scholar C. Taberner; C. Taberner 1Institut de Ciències de la Terra Jaume Almera, Consejo Superior de Investigaciones Científicas, Lluis Solé Sabarís, s/n 08028 Barcelona, Spain Search for other works by this author on: GSW Google Scholar J.J. Pueyo J.J. Pueyo 2Departament de Geoquímica i Petrologia, Universitat de Barcelona, Martí i Franquès, s/n, 08028 Barcelona, Spain Search for other works by this author on: GSW Google Scholar Geology (2001) 29 (3): 251–254. https://doi.org/10.1130/0091-7613(2001)029<0251:BMRIEB>2.0.CO;2 Article history received: 28 Feb 2000 rev-recd: 08 Nov 2000 accepted: 29 Nov 2000 first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation C. Ayora, D.I. Cendón, C. Taberner, J.J. Pueyo; Brine-mineral reactions in evaporite basins: Implications for the composition of ancient oceans. Geology 2001;; 29 (3): 251–254. doi: https://doi.org/10.1130/0091-7613(2001)029<0251:BMRIEB>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The chemical evolution of several European Mesozoic and Tertiary evaporite basins was reconstructed by using mineral associations, primary fluid-inclusion analyses, and numerical simulations of evaporation scenarios. The solute proportion recorded in the fluid inclusions can be explained by the evaporation of present-day seawater as a major recharge. The sulfate depletion in the brines is responsible for the type of potash deposit formed, potassium-magnessium sulfates or sylvite. This sulfate depletion can be due either to dolomitization or to the addition of a CaCl2-rich solution to the basin. The sulfate depletion occurred in varying intensity in basins of the same age, as well as throughout the evolution of the same basin. Therefore, changes in potash mineralogy and sulfate depletion in fluid inclusions are not conclusive arguments in favor of secular variations in the composition of the ocean, as recently proposed by several authors. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.