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Brown diamonds from an eclogite xenolith from Udachnaya kimberlite, Yakutia, Russia
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2011 Aleksandr S Stepanov +2 more
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Earth and Planetary Science Letters, 2011 Petit-spots, the late Miocene alkali basaltic volcanoes on the Early Cretaceous NW Pacific Plate, originate at the base of the lithosphere. The petit-spot volcanic rocks enclose fragments of tholeiitic basalt, dolerite, gabbro, and mantle peridotite ...
Yumiko Harigane +2 more
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Geochimica et Cosmochimica Acta, 1988
C3 xenoliths in a C2 host (Murchison) are unique among known meteoritic xenolith-host occurrences. They offer an opportunity to determine possible effects on the xenoliths by the hydrated host. Eleven xenoliths were found ranging from 2 to 13 mm. Four of these Murchison Xenoliths (MX1, MX2, MX3 and MX4) have been studied in detail.
Olsen, Edward J. +5 more
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C3 xenoliths in a C2 host (Murchison) are unique among known meteoritic xenolith-host occurrences. They offer an opportunity to determine possible effects on the xenoliths by the hydrated host. Eleven xenoliths were found ranging from 2 to 13 mm. Four of these Murchison Xenoliths (MX1, MX2, MX3 and MX4) have been studied in detail.
Olsen, Edward J. +5 more
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The dynamics of xenolith assimilation
Contributions to Mineralogy and Petrology, 1998Xenolith assimilation has been simulated with experiments involving melting wax spheres into hot water and aqueous solutions and characterised by a theoretical analysis. Both the cases of neutrally buoyant stationary spheres and spheres sinking through the hot host fluid are examined. Melt generated on a sphere's surface flows (compositional convection)
Mcleod, P, Sparks, RSJ
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The transport of xenoliths in magmas
Earth and Planetary Science Letters, 1977Abstract Field measurements of the rheology of Hawaiian and Etnean lavas have shown that, on eruption, they behave as Bingham liquids with yield strengths in the range 70–450 N/m 2 . Ultramafic nodules entrained in a Bingham liquid cannot settle unless the stress they impose on the liquid exceeds approximately 5–7 times its yield strength ...
R.S.J. Sparks +2 more
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MANTLE XENOLITHS IN THE MATSOKU KIMBERLITE PIPE
Physics and Chemistry of the Earth, 1975Abstract The chemical compositions of selected xenoliths from the Matsoku pipe and many constituent minerals are discussed. It is concluded that the xenoliths form a closely related suite of rocks of differing mineralogy and chemistry which could have been produced during a single igneous event in the mantle. It is likely that at solidus temperatures
J.J. Gurney, B. Harte, K.G. Cox
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1980
Within kimberlite intrusions there are included fragments of a wide variety of rock types. Minerals derived from their fragmentation are incorporated into the host kimberlite, thereby giving it an extremely complex and hybrid mineralogy.
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Within kimberlite intrusions there are included fragments of a wide variety of rock types. Minerals derived from their fragmentation are incorporated into the host kimberlite, thereby giving it an extremely complex and hybrid mineralogy.
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Potassium and rubidium in ultramafic xenoliths
Geochimica et Cosmochimica Acta, 1970Abstract K and Rb contents of 13 ultramafic xenoliths and 6 specimens of associated basalt are presented. K Rb ratios of the xenoliths vary from about 60 to 600, while those of the hostbasalts lie in the narrower range of 200–340. Variation in the xenoliths may reflect mantle heterogeneity.
D.K. Paul, R. Hutchison
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