New type of compositional zoning in calcite: Insights into crystal-growth mechanisms

Abstract

Research Article| December 01, 1990 New type of compositional zoning in calcite: Insights into crystal-growth mechanisms Jeanne Paquette; Jeanne Paquette 1Department of Earth and Space Sciences, State University of New York at Stony Brook, Stony Brook, New York 11794-2100 Search for other works by this author on: GSW Google Scholar Richard J. Reeder Richard J. Reeder 1Department of Earth and Space Sciences, State University of New York at Stony Brook, Stony Brook, New York 11794-2100 Search for other works by this author on: GSW Google Scholar Author and Article Information Jeanne Paquette 1Department of Earth and Space Sciences, State University of New York at Stony Brook, Stony Brook, New York 11794-2100 Richard J. Reeder 1Department of Earth and Space Sciences, State University of New York at Stony Brook, Stony Brook, New York 11794-2100 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1990) 18 (12): 1244–1247. https://doi.org/10.1130/0091-7613(1990)018<1244:NTOCZI>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 MailTo Tools Icon Tools Get Permissions Search Site Citation Jeanne Paquette, Richard J. Reeder; New type of compositional zoning in calcite: Insights into crystal-growth mechanisms. Geology 1990;; 18 (12): 1244–1247. doi: https://doi.org/10.1130/0091-7613(1990)018<1244:NTOCZI>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 Compositional zoning of trace elements is observed in time-equivalent regions within 10 \(\overline{1}\) 4 growth sectors of natural and synthetic calcite single crystals, and has been called "intrasectoral zoning" to distinguish it from conventional sectoral zoning. Differential interference contrast microscopy shows that {101 \(\overline{1}\) 4} faces grow by the spiral mechanism. Cathodoluminescence microscopy and electron probe microanalyses reveal that trace element partitioning differences on {101 \(\overline{1}\) 4} faces correspond exactly to crystallographically controlled orientations of growth steps. Effective partitioning of Mg and Mn varies up to a factor of four between time-correlative growth steps spreading in different directions. Effective Sr partitioning varies by approximately 20% and is inversely correlated with enrichment trends of Mg and Mn.Preferential incorporation of different aqueous species at different growth steps may provide an explanation for morphological and chemical variation in natural calcites. 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.