Radiaxial calcite: Alteration product of and petrographic proxy for magnesian calcite marine cement

Research Article| October 01, 1996 Radiaxial calcite: Alteration product of and petrographic proxy for magnesian calcite marine cement Paul A. Wilson; Paul A. Wilson 1Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, England Search for other works by this author on: GSW Google Scholar A. D. Dickson A. D. Dickson 1Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, England Search for other works by this author on: GSW Google Scholar Author and Article Information Paul A. Wilson 1Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, England A. D. Dickson 1Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, England Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1996) 24 (10): 945–948. https://doi.org/10.1130/0091-7613(1996)024<0945:RCAPOA>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Paul A. Wilson, A. D. Dickson; Radiaxial calcite: Alteration product of and petrographic proxy for magnesian calcite marine cement. Geology 1996;; 24 (10): 945–948. doi: https://doi.org/10.1130/0091-7613(1996)024<0945:RCAPOA>2.3.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 Radiaxial calcite is a common and distinctive pore fill in ancient limestones, but the origin of this fabric is highly controversial. We present data from the Late Cretaceous equatorial Pacific that suggest that radiaxial calcite forms through alteration of early magnesian calcite (≥7 mol% MgCO3) marine cement. These data suggest that radiaxial calcites are not straightforward indicators of pore-fluid chemistry. On the other hand, the presence of radiaxial calcite in limestones may provide a distinctive petrographic proxy for earlier magnesian calcite cement and thus a generally warm CaCO3-saturated marine environment. 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.