Insights into the petrogenesis of the West Kimberley lamproites from trace elements in olivine

Insights into the petrogenesis of the West Kimberley lamproites from trace elements in olivine

The Miocene lamproites of the West Kimberley region, Western Australia include olivine-leucite lamproites (≤10 wt% MgO) containing olivine and leucite microphenocrysts, and diamondiferous olivine lamproites (20–30 wt% MgO) containing olivine phenocrysts and larger (1–10 mm) olivine as mantle xenocry...

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Veröffentlicht in:Mineralogy and petrology 2018-12, Vol.112 (Suppl 2), p.519-537
Hauptverfasser: Jaques, A. Lynton, Foley, Stephen F.
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum
Calcium
Chromite
Cratons
Crystallization
Diamonds
Dunite
Earth and Environmental Science
Earth Sciences
Garnet
Geochemistry
Inorganic Chemistry
Iron
Isotopes
Lava
Lithosphere
Magma
Magnesium oxide
Manganese
Mantle
Mineralogy
Miocene
Nickel
Olivine
Original Paper
Peridotite
Petrogenesis
Potassium aluminum silicates
Thermometers
Trace elements
Zirconium
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Zusammenfassung:The Miocene lamproites of the West Kimberley region, Western Australia include olivine-leucite lamproites (≤10 wt% MgO) containing olivine and leucite microphenocrysts, and diamondiferous olivine lamproites (20–30 wt% MgO) containing olivine phenocrysts and larger (1–10 mm) olivine as mantle xenocrysts and dunite micro-xenoliths. Olivine phenocrysts and thin (
ISSN:0930-0708
1438-1168
DOI:10.1007/s00710-018-0612-9