Petrography and mineral chemistry of Northeast Africa 053—A remnant of Martian crystal mush
Meteoritics &Planetary Science, EarlyView.Abstract In Earth's igneous systems, crystal mushes, crystal‐rich frameworks permeated by silicate melt, represent a common and fundamental stage in the evolution of magma bodies. However, whether crystal mushes occur within Martian igneous systems and play a comparable role is unknown. Here, we present a comprehensive petrography and mineral chemistry
Xhonatan Shehaj +2 more
wiley +1 more source
Petrology of some oceanic island basalts: PRIMELT2.XLS software for primary magma calculation [PDF]
, 2008 PRIMELT2.XLS software is introduced for calculating primary magma composition and mantle potential temperature (TP) from an observed lava composition. It is an upgrade over a previous version in that it includes garnet peridotite melting and it detects ...
Asimow, Paul D., Herzberg, C.
core +2 more sources
Mineral chemistry, thermobarometry and tectonomagmatic setting of Late-Cretaceous volcanic rocks from the Kojid area (south of Lahijan, northern Alborz) [PDF]
پترولوژی, 2018 The volcanic rocks of Kojid area (south of Lahijan) crop out in northern Alborz. They show mainly pillow structure with numerous cross-cutting dykes. Based on lithostratigraphic relationships and interpillow pelagic limestones, the volcanics are Late ...
morteza delavari +2 more
doaj +1 more source
The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)
Sedimentology, EarlyView.ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti +5 more
wiley +1 more source
Impulsive supply of volatile-rich magmas in the shallow plumbing system of Mt. Etna volcano [PDF]
, 2018 Magma dynamics at Mt. Etna volcano are frequently recognized as the result of complex crystallization regimes that, at shallow crustal levels, unexpectedly change from H2O -undersaturated to H2O-saturated conditions, due to the impulsive and irregular ...
Gaeta, Mario +5 more
core +1 more source
Mineralogical Mapping of Pyroxene and Anorthosite in Dryden Crater Using M3 Hyperspectral Data
Engineering ProceedingsThis study investigates the mineral composition of the lunar Dryden Crater using Moon Mineralogy Mapper (M3) data. A RGB false-color composite reveals distinct pyroxene, anorthosite, and possibly spinel distribution patterns.
Iskren Ivanov, Lachezar Filchev
doaj +1 more source
Geochemistry, Geophysics, Geosystems, 2023 Kimberlite‐borne eclogite xenoliths having Precambrian oceanic crustal protoliths and entrained from ≥100 km depth can retain pristine geochemical features despite extended residence in the cratonic lithospheric mantle, making them valuable archives of ...
Sonja Aulbach +5 more
doaj +1 more source
Sodium partitioning between clinopyroxene and silicate melts
Journal of Geophysical Research: Solid Earth, 1995 We present a quantitative model for Na partitioning between clinopyroxene and silicate melt, applicable in the range 0.1 MPa to 6.0 GPa, 1000–2000°C over a wide span of composition. Our model is derived from the Jadeite melting equilibrium, via the relationship ΔGƒ(P,T) = −RTlnKƒ = RTlnD*Na where ΔGƒ(P,T) is the Gibbs free energy of fusion of Jadeite ...
Blundy, JD +3 more
openaire +1 more source
High pressure minerals in the Château-Renard (L6) ordinary chondrite: implications for collisions on its parent body [PDF]
, 2018 We report the first discoveries of high-pressure minerals in the historical L6 chondrite fall Château-Renard, based on co-located Raman spectroscopy, scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy and electron backscatter ...
Anand, Mahesh +7 more
core +2 more sources
The Lages diatremes: mineral composition and petrological implications
Anais da Academia Brasileira de Ciências, 2007 Chemical data of heavy minerals from Lages diatremes in southern Brazil have been studied with the aim of characterizing the sample source(s). Three groups of minerals are recognized: I) aluminian-chromian pyroxene, pyrope garnet and chromian spinel ...
Giancarlo Barabino +2 more
doaj +1 more source