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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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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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Annual Review of Earth and Planetary Sciences, 2013
Kimberlite magmas are volatile-rich, silica-poor ultrabasic magmas originating as small-degree mantle melts at depths of 150 km or greater. Alteration and entrained xenoliths obscure their original magma chemistry and properties. Kimberlite magmas decrease temperature by a few hundred degrees during ascent.
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Kimberlite magmas are volatile-rich, silica-poor ultrabasic magmas originating as small-degree mantle melts at depths of 150 km or greater. Alteration and entrained xenoliths obscure their original magma chemistry and properties. Kimberlite magmas decrease temperature by a few hundred degrees during ascent.
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Mineralogical Magazine, 2013
AbstractA detailed mineralogical examination of representative material from the P2-West 'kimberlite' located in the Wajrakarur Kimberlite Field (India) demonstrates that significant differences exist between these rocks and archetypal hypabyssal kimberlite.
Gurmeet Kaur, R. H. Mitchell
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AbstractA detailed mineralogical examination of representative material from the P2-West 'kimberlite' located in the Wajrakarur Kimberlite Field (India) demonstrates that significant differences exist between these rocks and archetypal hypabyssal kimberlite.
Gurmeet Kaur, R. H. Mitchell
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Polymineralic inclusions in kimberlite-hosted megacrysts: Implications for kimberlite melt evolution
Lithos, 2019Abstract Megacrysts are large (cm to >20 cm in size) mantle-derived crystals, which are commonly entrained by kimberlite magmas, comprising of olivine, orthopyroxene, clinopyroxene, phlogopite, garnet, ilmenite and zircon as common phases. Numerous studies have shown megacrysts to contain polymineralic inclusions, which have been interpreted to ...
Adam Abersteiner +7 more
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Kimberlitic zircons ? A possible aid in prospecting for kimberlites
Mineralium Deposita, 1975Kimberlitic zircons from 16 intrusions in Lesotho, the Republic of South Africa, and Tanzania have been investigated. The following characteristics distinguish the kimberlitic zircons from the zircons derived from most other sources: 1. Rounded to subrounded grains predominate; euhedral zircons are very rare. 2.
P. Kresten, P. Fels, G. Berggren
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Kimberlite Magmatism and Textural Genetic Classifications of Kimberlite
1986Initial studies of kimberlites (Wagner 1914) demonstrated that they occur as carrot-shaped vertical intrusions termed pipes or diatremes and as tabular dikes (fissure kimberlites).
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Geological Journal
ABSTRACT The Wajrakarur Kimberlite Field (WKF) in Anantapur, Andhra Pradesh, India, stands as a pivotal region for kimberlite exploration in the South Indian Kimberlite Province. It features distinct gravity highs and lows, sandwiched between Closepet Granite (CG) and Cuddapah Basin (CB), with notable gold‐mineralized Ramagiri ...
Raghu Vansh Bhushan Singh +2 more
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ABSTRACT The Wajrakarur Kimberlite Field (WKF) in Anantapur, Andhra Pradesh, India, stands as a pivotal region for kimberlite exploration in the South Indian Kimberlite Province. It features distinct gravity highs and lows, sandwiched between Closepet Granite (CG) and Cuddapah Basin (CB), with notable gold‐mineralized Ramagiri ...
Raghu Vansh Bhushan Singh +2 more
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