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Geochemical Evidence for Multi-Depth Magma Generation for Permian–Triassic Dolerite and Late Cretaceous Basanite of the Minusa Paleorift, Siberia
AbstractThe chemical composition of alkaline (Late Cretaceous basanite) and subalkaline (Permian–Triassic dolerite) basaltoids of different ages in...
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Petrogenesis of Miocene to Quaternary primitive basaltic magmas in the area of Lake Van (East Anatolia, Turkey): a case for relamination of mantle lithosphere after lithospheric delamination
We present the geochemical and Sr–Nd–Pb isotopic data and the petrological evolution of primitive basaltic lavas that erupted from the Miocene to...
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The effect of potassium on aluminous phase stability in the lower mantle
The aluminous calcium-ferrite type phase (CF) and new aluminous phase (NAL) are thought to hold the excess alumina produced by the decomposition of...
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Trace element partitioning in basaltic systems as a function of oxygen fugacity
Along with temperature, pressure and melt chemistry, magmatic oxygen fugacity ( f O 2 ) has an important influence on liquid and solid differentiation...
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Pulicaria gnaphalodes-assisted green synthesis of NiFe2O4@ZnO nanocomposites for sustainable remediation of an antibiotic from aqueous solution
In this study, the NiFe 2 O 4 @ZnO nanocomposite was synthesized in a simple, accessible and affordable method using Pulicaria gnaphalodes plant extract...
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Low-pressure isobaric cooling metamorphic P–T paths from Botnnuten in the southern Lützow-Holm Complex, East Antarctica
This paper reports the metamorphic texture of cordierite megacrysts and the metamorphic P–T path of a newly exposed section of gneiss in East...
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Hydrothermal metasomatism and solid-phase transfer in petrogenesis of listvenite: the Meso-Tethyan ophiolite, central Tibet, China
In this paper, we present mineralogical, whole-rock geochemical, Sr and Pb isotopic, and zircon trace elemental and U–Pb geochronological data for...
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The Borodino Meteorite: Evolution on the Parent Body
AbstractThe work reports on the results of the mineralogical and petrographic study of the Borodino meteorite (H5). For the first time, meteorite...
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Petrogenesis and Tectonic Implications of the Tertiary Choke Shield Basalt and Continental Flood Basalt from the Central Ethiopian Plateau
The voluminous Choke Shield basalts and flood basalts are distributed in the central Ethiopian Plateau. They are tholeiitic in composition and have...
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Fractionation of trace and platinum-group elements during metamorphism of komatiitic chromites from the early Archean Gorumahishani greenstone belt, Singhbhum Craton (eastern India)
It is well established that the major and minor element contents of chromites are subject to change during greenschist to amphibolite facies...
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Fragment of an Early Cambrian Continental Margin in the Structure of the Tuva Segment of the Central Asian Orogenic Belt (Teregtig Formation): Results of U–Pb Zircon Dating and Sr Chemostratigraphy
AbstractThe age of sedimentation (530–520 Ma) of the Teregtig Formation of South Tuva is estimated on the basis of U–Pb dating of detrital zircon...
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Assemblage of Fe–Mg–Al–Ti–Zn Oxides in Granulites of the Bunger Hills, East Antarctica: Evidence of Ultrahigh-Temperature Metamorphism
AbstractThe composition and interrelations of oxides (minerals of the spinel supergroup, corundum, ilmenite, rutile) and silicates (garnet,...
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Alkaline magmas in shallow arc plutonic roots: a field and experimental investigation of hydrous cumulate melting in the southern Adamello batholith
Despite the first-order importance of crystallisation–differentiation for arc magma evolution, several other processes contribute to their...
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Geological setup, structure and metamorphism of south-eastern part of Sandur Schist Belt around Obulapuram area, Anantapur District, Andhra Pradesh
Geological map** of over 50 km 2 area has been carried out in and around Obulapuram area, SE of Sandur Schist Belt. The Sandur Schist Belt (SSB), a...
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Mineral-melt vanadium oxybarometry for primitive arc magmas: effect of hydrous melt composition on fO2 estimates
If primitive arc magmas are primarily oxidized or if they acquire their oxidizing character during crustal evolution remains debated. Mineral-melt V...
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Diamond sources of the Juína region, Amazonian craton: textural and mineral chemical characteristics of Kimberley-type pyroclastic kimberlites
Juína is the second-largest diamond-producing municipality in Brazil and is globally known for its outstanding sublithospheric diamond occurrences in...
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Megacrysts of “Bubbly” Kaersutite in Neogene–Quaternary Volcanic Rocks of Northwestern Syria: Evidence for Crystallization in a Boiling Melt/Fluid
AbstractThe paper addresses megacrysts of “bubbly” kaersutite found among mantle xenoliths in the Al Ghab plateau basalts, northwestern Syria. The...
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Fractal Analysis of the Composition and Structure of Sulfide Disseminated Ores in Picritic Gabbro-Dolerites of the Oktyabrsky Deposit, Norilsk Ore Cluster
AbstractOres from wells drilled in the Kharaelakh intrusive of the Talnakh ore cluster are analyzed. Vein-disseminated sulfide copper–nickel...
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Geochronology and geochemistry of the polyphase mafic rocks in the North Liaohe Group, Jiao-Liao-Ji Belt, North China Craton: implications for petrogenesis and tectonic evolution
The Jiao-Liao-Ji Belt (JLJB) is one of the Paleoproterozoic orogenic belts within the North China Craton (NCC), whose tectonic evolution is still...
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Sharp 660-km discontinuity controlled by extremely narrow binary post-spinel transition
The Earth’s mantle is characterized by a sharp seismic discontinuity at a depth of 660 km that can provide insights into deep mantle processes. The...
