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  1. Contributions to Mineralogy and Petrology
  2. Contributions to Mineralogy and Petrology : Volume 134
  3. Contributions to Mineralogy and Petrology : Volume 134, Issue 2-3, February 1999
  4. Genesis of diamonds in the lower mantle
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Contributions to Mineralogy and Petrology : Volume 171
Contributions to Mineralogy and Petrology : Volume 170
Contributions to Mineralogy and Petrology : Volume 169
Contributions to Mineralogy and Petrology : Volume 168
Contributions to Mineralogy and Petrology : Volume 167
Contributions to Mineralogy and Petrology : Volume 166
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Contributions to Mineralogy and Petrology : Volume 139
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Contributions to Mineralogy and Petrology : Volume 136
Contributions to Mineralogy and Petrology : Volume 135
Contributions to Mineralogy and Petrology : Volume 134
Contributions to Mineralogy and Petrology : Volume 134, Issue 4, March 1999
Contributions to Mineralogy and Petrology : Volume 134, Issue 2-3, February 1999
The Finero phlogopite-peridotite massif: an example of subduction-related metasomatism
Trace element distribution within olivine-bearing gabbros from the Northern Apennine ophiolites (Italy): evidence for post-cumulus crystallization in MOR-type gabbroic rocks
Hercynian, Pan-African, Proterozoic and Archean ion-microprobe zircon ages for a Betic-Rif core complex, Alpine belt, W Mediterranean – consequences for its P-T-t path
U-Pb monazite, xenotime and titanite geochronological constraints on the prograde to post-peak metamorphic thermal history of Paleoproterozoic migmatites from the Grand Canyon, Arizona
Genesis of diamonds in the lower mantle
Chromatographic separation of the platinum-group elements, gold, base metals and sulfur during degassing of a compacting and solidifying igneous crystal pile
Growth, annealing and recrystallization of zircon and preservation of monazite in high-grade metamorphism: conventional and in-situ U-Pb isotope, cathodoluminescence and microchemical evidence
Low melt fraction connectivity of granitic and tonalitic melts in a mafic crustal rock at 800 °C and 1 GPa
Comparison of garnet-biotite, calcite-graphite, and calcite-dolomite thermometry in the Grenville Orogen; Ontario, Canada
Harzburgite to lherzolite and back again: metasomatic processes in ultramafic xenoliths from the Wesselton kimberlite, Kimberley, South Africa
An empirical model for the calculation of spinel-melt equilibria in mafic igneous systems at atmospheric pressure: 2. Fe-Ti oxides
Diffusion metasomatism in silica-undersaturated sapphirine-bearing granulite from Rumdoodle Peak, Framnes Mountains, east Antarctica
Determination of time-integrated metamorphic fluid fluxes from the reaction progress of multivariant assemblages
Reaction relationships in the Bayan Obo Fe-REE-Nb deposit Inner Mongolia, China: implications for the relative stability of rare-earth element phosphates and fluorocarbonates
Erratum: Contrib Mineral Petrol 133: 51–59
Contributions to Mineralogy and Petrology : Volume 134, Issue 1, January 1999
Contributions to Mineralogy and Petrology : Volume 133
Contributions to Mineralogy and Petrology : Volume 132
Contributions to Mineralogy and Petrology : Volume 131
Contributions to Mineralogy and Petrology : Volume 130
Contributions to Mineralogy and Petrology : Volume 129
Contributions to Mineralogy and Petrology : Volume 128
Contributions to Mineralogy and Petrology : Volume 127
Contributions to Mineralogy and Petrology : Volume 126

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Genesis of diamonds in the lower mantle

Content Provider Springer Nature Link
Author Liu, Lin gun
Copyright Year 1999
Abstract The “forbidden” assemblage (ferropericlase + enstatite) as inclusions in diamonds has been taken as evidence to imply that these inclusions and their host diamonds formed initially in the lower mantle. Magnesite is probably the only stable carbonate at depths greater than ∼220 km. Like dehydration reactions, the reaction boundary for the decarbonation of magnesite has a positive dT/dP slope at lower pressures, which becomes negative at higher pressures, if no other phase intervenes. This reaction boundary probably intersects the geotherm between ∼900 and ∼1100 km, below which magnesite decomposes into an assemblage periclase + diamond + oxygen. Thus, ferropericlase is the most likely inclusion in diamond formed in the lower mantle. The high frequency of sole occurrence of ferropericlase in diamonds from Sao Luiz, Brazil seems to substantiate the present speculation.
Starting Page 170
Ending Page 173
Page Count 4
File Format PDF
ISSN 00107999
Journal Contributions to Mineralogy and Petrology
Volume Number 134
Issue Number 2
e-ISSN 14320967
Language English
Publisher Springer Berlin Heidelberg
Publisher Date 1999-02-01
Publisher Place Berlin/Heidelberg
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword Geology Mineral Resources Mineralogy
Content Type Text
Resource Type Article
Subject Geochemistry and Petrology Geophysics
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