Relationship of two lacustrine ostracode species to solute composition and salinity: Implications for paleohydrochemistry

Abstract

Research Article| August 01, 1983 Relationship of two lacustrine ostracode species to solute composition and salinity: Implications for paleohydrochemistry Richard M. Forester Richard M. Forester 1U.S. Geological Survey, 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, 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 (1983) 11 (8): 435–438. https://doi.org/10.1130/0091-7613(1983)11<435:ROTLOS>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 MailTo Tools Icon Tools Get Permissions Search Site Citation Richard M. Forester; Relationship of two lacustrine ostracode species to solute composition and salinity: Implications for paleohydrochemistry. Geology 1983;; 11 (8): 435–438. doi: https://doi.org/10.1130/0091-7613(1983)11<435:ROTLOS>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 Nonmarine ostracode species are indicative of the physical and chemical nature of lacustrine environments. Although salinity has traditionally been regarded as one of the more important parameters that affect the occurrence patterns of lacustrine ostracodes, examination of the solute composition and salinities of the lakes where Limnocythere sappaensis and L. staplini live reveals that solute composition and not salinity is the most critical factor that controls their occurrence. The occurrence of these taxa in the modern world is mutually exclusive. L. sappaensis lives in water that is enriched in Na+-HCO3−- and depleted in Ca2+. L. staplini lives in water that is enriched in various combinations of Na+-Mg2+-Ca2+--Cl− and is depleted in HCO3. These solute compositions are the product of the mineral fractionation processes described by Eugster and Hardie. The positive correlation between these two species occurrences and the mineralogic fractionation processes suggests that these taxa may be used as reliable paleohydrochemical indicators. Studies in progress dealing with other ostracode taxa suggest that saline lacustrine ostracodes can provide a precise method for reconstructing paleohydrochemistry. 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.