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Diopside-Albite: A Complex System
It would be folly to suppose that diopside-albite is a binary system. We have already found, in Di-An, that diopside shows incorporation of Al when...
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Diopside-Anorthite-Albite
The system Di-An-Ab allows us to study a basaltic model consisting of diopside and an intermediate plagioclase, a model which is much closer to the...
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Transformation of olivine to diopside via interaction with carbonatite melts
Numerous empirical and experimental studies have documented the consumption of orthopyroxene and production of clinopyroxene in mantle peridotite...
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Forsterite-Diopside-Silica: Pyroxenes and Their Reactions
The system forsterite-diopside-SiO2 (Fo-Di-SiO2 or “FDS”) is one of the most illuminating systems in basalt petrology; it is also one of the most...
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Forsterite-Diopside-Anorthite: A Basaltic Analog
Our models for basalt have so far dealt only with plagioclase and pyroxene, the two dominant minerals in most basalts. We have ignored olivine and...
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Diopside and Anorthite: Supposedly a Binary Eutectic System
In this chapter, we introduce the study of phase equilibrium diagrams as models of natural rocks. The system to be described is simple, yet it...
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The breakdown of diopside to (Ca, Mg)SiO3 perovskite–(Mg, Ca, Fe)SiO3 glass–(Mg, Ca)SiO3 glass–(Mg, Ca)SiO3 majorite in a melt vein the Suizhou L6 chondrite
The Suizhou meteorite is a heavily shocked and melted vein-containing L6 chondrite. It contains a minor amount of diopside with a (Ca 0.419 Mg 0.466 Fe 0.088...
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Chrome-diopside Xenocrysts Entrained in a Neoproterozoic Lamprophyre Dyke from the Mysuru Area: Their Origin and Implications for Lithospheric Thickness Beneath the Western Dharwar Craton, Southern India
In comparison to the eastern Dharwar Craton, the mantle-derived xenocrysts/xenoliths are extremely rare or even unreported from the western Dharwar...
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Giant Garnet Crystals in Wollastonite–Grossularite–Diopside-Bearing Marbles from Tamarispa (NE Sardinia, Italy): Geosite Potential, Conservation, and Evaluation as Part of a Regional Environmental Resource
The wollastonite–garnet–diopside-bearing marbles crop** out in the Migmatite Complex west to the Tamarispa and San Lorenzo villages share a common...
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Peritectic Reaction of Olivine in the Olivine–Jadeite–Diopside–Garnet–(C–O–H) System at 6 GPa as the Key Mechanism of the Magmatic Evolution in the Upper Mantle
Abstract—The melting relations in the olivine–jadeite–diopside–garnet–(С–О–H fluid) system, including metasomatic СО 2 carbonatization of silicates...
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Composition, Structure, and Thermal Regime of the Lithospheric Mantle in the Area of the Highly Diamondiferous V. Grib Kimberlite Pipe, Arkhangelsk Diamondiferous Province: Data on the Chemical Composition of Garnet and Chrome-Diopside Xenocrysts
AbstractThe contents of the main elements (including Ni) are presented for 1100 garnet and 831 clinopyroxene grains extracted from kimberlite of a...
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Omphacite breakdown: nucleation and deformation of clinopyroxene-plagioclase symplectites
The breakdown of omphacite plays an important role in the exhumation and retrogression of eclogites. Additionally, metamorphic reactions associated...
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Formation of Richterite in the Enstatite–Diopside System in the Presence of K2CO3–Na2CO3–CO2–H2O Fluid: Implications for the Processes of Mantle Metasomatism
Abstract —The paper presents data on the formation of K–Na richterite in the enstatite + diopside association with K 2 CO 3 –Na 2 CO 3 –CO 2 –H 2 O fluid at 3...
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Minerals-Indicators of Fluids Compositions in the Metabasites (by Experimental Data)
The results of modeling the transfer of petrogenic components at 750-800 °C, under pressure gradient conditions, are presented. The source of the...
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Perovskite geochronology and petrogenesis of the Neoproterozoic Mad Gap Yards ultramafic lamprophyre dykes, East Kimberley region, Western Australia
The Mad Gap Yards ultramafic lamprophyre (UML) dykes in the East Kimberley region of northern Western Australia form part of a widespread...
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Iron oxide–apatite deposits form from hydrosaline liquids exsolved from subvolcanic intrusions
Iron oxide–apatite (IOA or Kiruna-type) deposits typically consist of a magnetite-apatite-actinolite/diopside assemblage and are spatially associated...
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Metasomatic Origin of Lamellar-like Inclusions in Clinopyroxenes from Mantle Xenoliths of the Obnazhennaya Pipe (Kuoika Field, Yakutian Diamondiferous Province)
AbstractThe article reports new data on previously undescribed lamellar-like (linearly oriented) structures in clinopyroxenes from mantle xenoliths...
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Petrogenetic history and melt inclusion characteristics of mantle plume-derived ijolites from NE India: implications for multistage crystallization and occurrence of “nano-calciocarbonatites”
The Sung Valley ultramafic–alkaline–carbonatite complex (UACC) of Meghalaya, NE, India, is a result of magmatic activity related to the Kerguelen...
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Heavy Minerals in Beach Sediments Along the Gulf of Guinea, Cameroon: Clues on Weathering Condition and Provenance
A mineralogical survey was conducted in the Gulf of Guinea beach sediments to assess the transport history, depositional environment, weathering...
