Journal ArticleDOI
Komatiite Flows from the Reliance Formation, Belingwe Belt, Zimbabwe: I. Petrography and Mineralogy
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This article is published in Journal of Petrology.The article was published on 1994-04-01. It has received 54 citations till now. The article focuses on the topics: Petrography.read more
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Plume-Associated Ultramafic Magmas of Phanerozoic Age
TL;DR: A parameterization of experimental data in the 0·2-7·0 GPa pressure range constrains both forward models of potential primary ished in models of Phanerozoic hotspot volcanism because magma compositions that exit the melting regime in the mantle and basalt eruptives are more common, and the plume model model model inverse models for computing the effects of olivine fractionation for is subject to debate as mentioned in this paper.
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Constraining the potential temperature of the Archaean mantle: A review of the evidence from komatiites
TL;DR: In this paper, it was shown that komatiites can only be formed in hot rising convective jets in the mantle, and that the most magnesian known eruption temperature was at up to 2200°C at pressures of 18 GPa corresponding to a mantle potential temperature of 1900°C.
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Geodynamic Information in Peridotite Petrology
TL;DR: In this paper, the petrology and major element geochemistry of natural peridotite samples from the sea floor near oceanic ridges and subduction zones, the mantle section of ophiolites, massif peridotsites, and xenoliths of cratonic mantle in kimberlite are compared.
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Archean Greenstone Belts Are Not Oceanic Crust
TL;DR: In this article, the authors review the tectonic setting and stratigraphy of a number of greenstone sequences previously interpreted as Archean ophiolites and conclude, on the basis of basal unconformities, presence of xenocryst zircons, geochemical and isotopic evidence for crustal contamination, intrusive relationships with older basement and their internal stratigraphic structures, that none of these examples is derived from Archean oceanic crust.
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Quantifying the Building Blocks of Igneous Rocks: Are Clustered Crystal Frameworks the Foundation?
TL;DR: In this paper, the authors examined touching crystal frameworks in olivine- (komatiite cumulates and experimental charges) and plagioclase-dominant crystal populations (Holyoke flood basalt, Connecticut, USA) revealing complex, high-porosity, clustered crystal arrangements.