Determination of the dissolved anion composition of ancient lakes from fossil ostracodes

Abstract

Research Article| September 01, 1986 Determination of the dissolved anion composition of ancient lakes from fossil ostracodes Richard M. Forester Richard M. Forester 1U.S. Geological Survey M.S. 919, Denver, Colorado 80225 Search for other works by this author on: GSW Google Scholar Author and Article Information Richard M. Forester 1U.S. Geological Survey M.S. 919, Denver, Colorado 80225 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1986) 14 (9): 796–799. https://doi.org/10.1130/0091-7613(1986)14<796:DOTDAC>2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Richard M. Forester; Determination of the dissolved anion composition of ancient lakes from fossil ostracodes. Geology 1986;; 14 (9): 796–799. doi: https://doi.org/10.1130/0091-7613(1986)14<796:DOTDAC>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 mineralogy of evaporite and other precipitated minerals, together with geochemical studies, has provided traditional sources of information about the major dissolved ion composition (solutes) of ancient lakes. The paleocompositional resolving power of these methods is generally greatest in high-salinity lakes that precipitate numerous solute-sensitive evaporite minerals as opposed to dilute saline lakes that precipitate only a few minerals. Ostracodes live in dilute saline lakes where a species occurrence is determined by the relative proportions of the lake's major dissolved anions, so that each species describes specific areas on an anion trilinear diagram. Moreover, the upper salinity tolerance of each species appears to depend upon the types of major anions in solution and is therefore anion-specific. Knowledge about both anion and anion-salinity tolerances of an ostracode may ultimately provide a means of estimating absolute anion concentrations in paleolakes. Because ostracodes are common fossils in lake sediments, they provide an important new source of original paleocompositional information suitable for many geologic, climatic, geochemical, and paleontologic studies. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.