A model for the origin of chert in limestone

Research Article| June 01, 1979 A model for the origin of chert in limestone L. Paul Knauth L. Paul Knauth 1Department of Geology, Louisiana State University, Baton Rouge, Louisiana 708032Present address: Department of Geology, Arizona State University, Tempe, Arizona 85281 Search for other works by this author on: GSW Google Scholar Author and Article Information L. Paul Knauth 1Department of Geology, Louisiana State University, Baton Rouge, Louisiana 708032Present address: Department of Geology, Arizona State University, Tempe, Arizona 85281 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1979) 7 (6): 274–277. https://doi.org/10.1130/0091-7613(1979)7<274:AMFTOO>2.0.CO;2 Article history 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 L. Paul Knauth; A model for the origin of chert in limestone. Geology 1979;; 7 (6): 274–277. doi: https://doi.org/10.1130/0091-7613(1979)7<274:AMFTOO>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 It is proposed that many nodular cherts in limestone have formed in the ground water of mixed meteoric-marine coastal systems where dissolution of biogenic opal and mixing of marine and fresh waters can produce waters highly supersaturated with respect to quartz and undersaturated with respect to calcite and aragonite. Aspects of cherts readily explained by this model include the observed isotopic ratios in cherts, typical field relationships, the relative resistance of dolomite to silicification, the source-of-silica problem, the preservation of siliceous fossils in cherts, and aspects of chert morphology and mineralogy. 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.