Stable isotopes and the origin of diamond | INSTITUT DE PHYSIQUE DU GLOBE DE PARIS

Twitter

Aller au compte twitter

  Stable isotopes and the origin of diamond

Publication Type:

Journal Article

Source:

Elements, Volume 1, Issue 2, p.79-84 (2005)

ISBN:

1811-5209

Keywords:

HETEROGENEITY; SULFUR

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 forming from mantle carbon. More recent stable isotope studies using nitrogen, oxygen, and sulfur, as well as carbon, combined with inclusions within diamonds, have strengthened arguments opposing the early proposal. The conflicting evidence is reconciled carbon is introduced via fluid into mantle eclogites and peridotites which represent subducted oceanic crust.

Notes:

ElementsISI Document Delivery No.: 009AKTimes Cited: 4Cited Reference Count: 29Cited References:BOTTINGA Y, 1969, EARTH PLANET SC LETT, V5, P301BOYD SR, 1994, CHEM GEOL, V116, P29CARTIGNY P, 1998, SCIENCE, V280, P1421CHAUSSIDON M, 1987, NATURE, V330, P242DEINES P, 1968, GEOCHIM COSMOCHIM AC, V32, P613DEINES P, 1980, GEOCHIM COSMOCHIM AC, V44, P943DEINES P, 1993, GEOCHIMICA COSMOCHIM, V57, P2761DYER HB, 1965, PHILOS MAG, V11, P763FARQUHAR J, 2002, SCIENCE, V298, P2369GALIMOV EM, 1991, GEOCHIM COSMOCHIM AC, V55, P1697HAENDEL D, 1986, GEOCHIM COSMOCHIM AC, V50, P749HARRIS JW, 1992, PROPERTIES NATURAL S, P345HARTE B, 1999, MINERAL MAG, V63, P829JAVOY M, 1986, CHEM GEOL, V57, P41KAISER W, 1959, PHYS REV, V115, P857KIRKLEY MB, 1991, APPL GEOCHEM, V6, P477KOGA KT, 2003, PHYS EARTH PLANET IN, V139, P35LOEST I, 2003, CONTRIB MINERAL PATH, V145, P15LOWRY D, 1999, GEOCHIM COSMOCHIM AC, V63, P1825LUTH RW, 1993, SCIENCE, V261, P66MENDELSSOHN MJ, 1995, INT GEOL REV, V37, P95NAVON O, 1999, P 7 INT KIMB C CAP T, V2, P584SATISHKUMAR M, 2002, J METAMORPH GEOL, V20, P335SCHULZE DJ, 1996, J GEOL, V104, P109SHIREY SB, 2002, SCIENCE, V297, P1683SOBOLEV NV, 1979, DOKL AKAD NAUK SSSR, V249, P1217SOBOLEV NV, 1998, INT GEOL REV, V40, P567STACHEL T, 2004, LITHOS, V77, P1TAYLOR LA, 2004, CHEM ERDE-GEOCHEM, V61, P1