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Kimberlites as Geochemical Probes of Earth’s Mantle
, 2019Orangeites (former Group 2 kimberlites) n = 141: Bellsbank (n=32) , Newlands (n=15), Pneil, Sover North (n=28) & Barkly West & Finsch area (n=5): Tainton (1992) & Becker & le Roex (2006) Swartruggens (n=11) & Star (17): Coe et al.
D. Pearson, J. Woodhead, P. Janney
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What is a Kimberlite? Petrology and Mineralogy of Hypabyssal Kimberlites
, 2019Hypabyssal kimberlites are subvolcanic intrusive rocks crystallised from mantle-derived magmas poor in SiO2 and rich in CO2 and H2O. They are complex, hybrid rocks containing significant amounts of mantle-derived fragments, primarily olivine with rare ...
R. Mitchell, A. Giuliani, H. O’Brien
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Dating Kimberlites: Methods and Emplacement Patterns Through Time
Elements, 2019Key to deciphering the origin and tectonic setting of kimberlite magmatism is an accurate understanding of when they formed. Although determining absolute emplacement ages for kimberlites is challenging, recent methodological advances have contributed to
L. Heaman, D. Phillips, G. Pearson
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Transportation Research Record: Journal of the Transportation Research Board, 2007
Kimberlite tailings are waste materials left after the recovery of diamond from diamond source rock. The material has a particle size ranging from 20 mm to 75 microns and can be categorized as a soft aggregate. It contains mainly silica, alumina, iron oxide, and magnesia.
R. K. Swami +2 more
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Kimberlite tailings are waste materials left after the recovery of diamond from diamond source rock. The material has a particle size ranging from 20 mm to 75 microns and can be categorized as a soft aggregate. It contains mainly silica, alumina, iron oxide, and magnesia.
R. K. Swami +2 more
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Journal of Petrology, 2019
Kimberlites are often closely associated, both in time and space, with a wide variety of alkaline ultramafic rock types, yet the question of a genetic relationship between these rock types remains uncertain.
H. Dalton +5 more
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Kimberlites are often closely associated, both in time and space, with a wide variety of alkaline ultramafic rock types, yet the question of a genetic relationship between these rock types remains uncertain.
H. Dalton +5 more
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Kimberlites from Source to Surface: Insights from Experiments
, 2019High-pressure experiments are unconvincing in explaining kimberlites as direct melts of carbonated peridotite because the appropriate minerals do not coexist stably at the kimberlite liquidus.
S. Foley, G. Yaxley, B. Kjarsgaard
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Kimberlite and kimberlitic intrusives of southeastern Australia
Mineralogical Magazine, 1980SummaryFifteen widely separated occurrences of kimberlite and kimberlitic rocks are now known in south-eastern Australia. Those that have been satisfactorily dated isotopically give ages ranging from Permian to Late Jurassic. One occurrence exhibits an intimate spatial association with carbonatite.
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Diamond Exploration and Resource Evaluation of Kimberlites
, 2019Kimberlites are the main source of natural gem-quality diamonds. The intrepid diamond explorer faces three major problems. First, finding a small, usually less than 300 m diameter, kimberlite, which is often highly weathered.
B. Kjarsgaard +2 more
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Geological Journal, 2018
Kimberlite field is an example of widespread Mesoproterozoic intracontinental magmatism. Recent studies have identified deep subcontinental lithospheric mantle as a source region of the kimberlite magmatism while timing, origin, and processes responsible
Sahroz Khan +4 more
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Kimberlite field is an example of widespread Mesoproterozoic intracontinental magmatism. Recent studies have identified deep subcontinental lithospheric mantle as a source region of the kimberlite magmatism while timing, origin, and processes responsible
Sahroz Khan +4 more
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Compositional classification of “kimberlitic” and “non-kimberlitic” ilmenite
Lithos, 2004Abstract Ilmenite is one of the common kimberlitic indicator minerals recovered during diamond exploration, and its distinction from non-kimberlitic rock types is important. This is particularly true for regions where these minerals are present in relatively low abundance, and they are the dominant kimberlitic indicator mineral recovered.
Bruce A. Wyatt +3 more
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