Stable Isotopes and the Origin of Diamond

Abstract

Research Article| March 01, 2005 Stable Isotopes and the Origin of Diamond Pierre Cartigny Pierre Cartigny 1Laboratoire de Géochimie des Isotopes Stables, Institut de Physique du Globe de Paris, 4 place Jussieu, Paris Cédex 75251, France E-mail: [e-mail] Search for other works by this author on: GSW Google Scholar Author and Article Information Pierre Cartigny 1Laboratoire de Géochimie des Isotopes Stables, Institut de Physique du Globe de Paris, 4 place Jussieu, Paris Cédex 75251, France E-mail: [e-mail] Publisher: Mineralogical Society of America First Online: 09 Mar 2017 Online ISSN: 1811-5217 Print ISSN: 1811-5209 © 2005 by the Mineralogical Society of America Elements (2005) 1 (2): 79–84. https://doi.org/10.2113/gselements.1.2.79 Article history First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Pierre Cartigny; Stable Isotopes and the Origin of Diamond. Elements 2005;; 1 (2): 79–84. doi: https://doi.org/10.2113/gselements.1.2.79 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 SocietyElements Search Advanced Search Abstract Most diamonds form in a relatively narrow depth interval of Earth's subcontinental mantle between 150 and 250 km. From carbon isotope analyses of diamond obtained in the 1970s, it was first proposed that eclogitic diamonds form from crustal carbon recycled into the mantle by subduction and that the more abundant peridotitic diamonds formed from mantle carbon. More recent stable isotope studies using nitrogen, oxygen, and sulfur, as well as carbon, combined with studies of mineral inclusions within diamonds, have strengthened arguments supporting and opposing the early proposal. The conflicting evidence is reconciled if mantle carbon is introduced via fluid into mantle eclogites and peridotites, some of which represent subducted oceanic crust. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.