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Platinum–Rhenium–Osmium Isotope Systematics of Chromitites and Native Osmium of the Guli Massif, Maimecha–Kotui Province, Russia
AbstractTo gain insight into the source of ore material, this study presents new Re–Os and Pt–Os isotopic and highly siderophile element (HSE: Os,...
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Sr–Nd Isotopic Evidence of a Heterogeneous Magmatic Source of Alkaline–Carbonatite Rocks of the Odikhincha Alkaline–Carbonatite Massif (Maimecha-Kotui Province, Siberia)
AbstractThis study focuses on the igneous rocks composing the Odikhincha massif. The massif is typical ring alkaline–ultrabasic massif with...
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The nature of the Karoo mantle source region from the perspective of olivine in the Luenha picrites: an oxygen isotopic and chemical study
The Karoo large igneous province has been divided into rift zone and basin-related groups, with picrites from the Luenha river, Mozambique,...
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The mantle source of basalts from Reunion Island is not more oxidized than the MORB source mantle
Glasses quenched from relatively undegassed ocean island magmas erupted from volcanoes at Iceland, Hawaii, the Canary Islands, and Erebus have...
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Sulfur Isotope Composition of Ru–Os Sulfides from the Guli Massif, Maimecha-Kotui Province, Russia: First Results
AbstractTo gain further insight into the origin of Ru–Os sulfides, the first in-situ sulfur isotopic data for Ru–Os sulfides from different polyphase...
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From the mantle source to the crustal sink: magmatic differentiation and sulfide saturation of the Paleoproterozoic komatiites of the Central Lapland Greenstone Belt, Finland
Paleoproterozoic (2.05 Ga) komatiites are widespread in the Central Lapland Greenstone Belt (CLGB), northern Finland. Close association with sulfur...
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From source to surface: clues from garnet-bearing Carboniferous silicic volcanic rocks, Iberian Pyrite Belt, Portugal
This work investigates the relationships between partial melting, melt extraction, pluton growth and silicic volcanism in garnet-bearing felsic...
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Ultrapotassic plutons as a source of uranium of vein-type U-deposits (Moldanubian Zone, Bohemian Massif): insights from SIMS uraninite U–Pb dating and trace element geochemistry
The Bohemian Massif hosts significant hydrothermal U-deposits associated with shear zones in the high-grade metamorphic basement. But there is a lack...
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A Deep Mantle Source for the Late Neoarchean Metamorphosed Basalts in Eastern Hebei, North China Craton: Insights from Whole-Rock Geochemistry and Sm-Nd Isotopes, and Zircon U-Pb-Hf Isotopes
The basalts within the greenstone belt worldwide serve as an ideal target to decipher the nature of Archean mantle sources and further to extend the...
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Hydrous mafic–ultramafic intrusives at the roots of a proto-arc: implications for crust building and mantle source heterogeneity in young forearc regions
The New Caledonia ophiolite represents a rare example of proto-arc section originated during subduction infancy. The sequence is dominated by...
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Magmatic source, petrogenesis, and tectonic setting of the Concepción del Oro Igneous Complex: a geochemical and isotopic (Rb–Sr and Sm–Nd) study of a late complex of the Cretaceous–Eocene Mexican Magmatic Arc
During the Mexican fold-and-thrust belt tectonics, the inboard migration of long-term cordilleran magmatism typifies the geological setting during...
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Mantle Source Components and Magmatic Evolution for the Comei Large Igneous Province: Evidence from the Early Cretaceous Niangzhong Mafic Magmatism in Tethyan Himalaya
The Niangzhong diabase dikes, dated at 138.1 ± 0.4 Ma, are located within the outcrop area of the Comei large igneous province (LIP). These diabase...
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Geochemistry of tourmaline-rich rocks in the Gavião Block, Northern São Francisco craton: implications for its formation
Tourmaline is a valuable forensic mineral that contains a wide range of elemental components capable of reconstructing its geologic evolution. In...
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Formation, preservation and extinction of high-pressure minerals in meteorites: temperature effects in shock metamorphism and shock classification
The goal of classifying shock metamorphic features in meteorites is to estimate the corresponding shock pressure conditions. However, the temperature...
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The Origin of the Sun and the Early Evolution of the Solar System with Special Emphasis on Mars, Asteroids, and Meteorites
Many of the details of the origin and evolution of the Solar System are still debated. In this chapter I develop a model that utilizes a natural...
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Impact Structures and Meteorites in North Africa
The arid to semi-arid climate of northern African countries is an asset for the preservation of meteorites and impact structures. The Sahara, the...
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Re-Os Isotope and HSE Abundance Systematics of the 2.9 Ga Komatiites and Basalts from the Sumozero-Kenozero Greenstone Belt, SE Fennoscandian Shield: Implications for the Mixing Rates of the Mantle
AbstractRhenium-Os isotope and highly siderophile element (HSE, including Re, Os, Ir, Ru, Pt, and Pd) abundance systematics of Archean komatiites can...
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Mineralogical signature of Khor Um Safi stream sediments, Central Eastern Desert, Egypt
The present work deals with the investigation of the mineralogical characteristics of stream sediments, as possible source of economic heavy...
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Early silicic magmatism on a differentiated asteroid
Unlike the other terrestrial planets, Earth has a substantial silica-rich continental crust with a bulk andesitic composition. A small number of...
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Depositional environment and redox characteristics of clastic materials in the Mayo Rey basin, North Cameroon: evidence from field, whole rock, and carbonate fraction geochemistry
In order to investigate the depositional environment and oxidation conditions during the accretion of clastic rocks in the Mayo Rey basin, field and...
