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Role of Depleted-MORB Mantle in the Genesis of Basalts from the Neoarchean Eastern Felsic Volcanic Terrane of the Sandur Greenstone belt, Dharwar Craton, India
The mafic volcanic rocks from the eastern felsic volcanic terrane (EFVT) of the Neoarchean Sandur greenstone belt of Western Dharwar Craton (WDC) are...
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Sr- and Nd-Isotope Geochemical Effects of Assimilation and Fractional Crystallization (AFC) Processes in the Heterogeneous Crust: The Example of Ferrobasites from the Ladoga Graben (Karelia, Russia)
AbstractPetrographic, geochemical, and isotope–geochemical studies of the Mesoproterozoic volcanic association (lava flows and the Valaam sill) in...
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Geochronology, Geochemistry, and Sr-Nd-Hf Isotopes of the Diorite Porphyrites from the Weining Beishan Area, Ningxia Hui Autonomous Region: Constraints on Their Source and Tectonic Implications
The Weining Beishan area of Ningxia Hui Autonomous Region is located at on the western edge of the Helanshan tectonic belt, which is a tectonic joint...
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Provenance and source area weathering of Siwalik foreland basin rocks in NW Himalayas: insights from hydrochemistry, petrography and geochemical signature
The geochemical characteristics of stream/slopewash sediments, modal composition and petrography of the clastic units from the Siwalik Group has...
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Geochronological and geochemical constraints on the petrogenesis and geodynamic process of Hemler, Vlinder, and Il’ichev seamount lavas in NW Pacific
Oceanic intraplate volcanoes with linear age progressions are usually accepted to be derived from melting of an upwelling mantle plume. Several...
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Revisiting the Geochemical Classification of Zircon Source Rocks Using a Machine Learning Approach
Trace element fingerprints preserved in zircons offer clues to their origin and crystallization conditions. Numerous geochemical indicators have been...
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Nature of the Two Episodes of Paleoproterozoic Magmatism (2495 Ma and 2190 Ma) in the Trans-North China Orogen, North China, with Implications for the Tectonic Evolution
Understanding the temporal and spatial evolution of the North China Craton (NCC) basement, formed by amalgamation, is a crucial issue in global...
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Neoproterozoic Diamictite of the Luoquan Formation from the North China Block and Their Implications
Glacial diamictite may provide important information on paleoenvironment and average composition of the upper continental crust (UCC). In this study,...
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Zircon U-Pb geochronology, Hf isotopes, and geochemistry constraints on the age and tectonic affinity of the basement granitoids from the Qiongdongnan Basin, northern South China Sea
Studies in the northern South China Sea (SCS) basement remain important for understanding the evolution of the Southeast Asian continental margin....
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U-Pb zircon ages and petrogeochemistry and tectonic implications of gabbro and granite in southwest Lahad Datu area of Sabah, Malaysia
The southwest Lahad Datu felsic rocks were previously thought to have formed in the late Triassic as part of the microcontinental crystalline...
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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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Relics of the Eoarchean Continental Crust of the Anabar Shield, Siberian Craton
AbstractIn the northern part of the Anabar Shield, orthopyroxene plagiogneisses of the granulite Daldyn Group host lenses of mafic rocks surrounded...
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Geochemistry and zircon U-Pb-Hf isotopes of igneous rocks associated with the Dongnam Fe-Mo skarn deposit, Taebaeksan Basin, South Korea
The Dongnam Fe-Mo skarn deposit is located at the northern part of the Taebaeksan Basin, an important mineralized province in South Korea. The age of...
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Origin and Tectonic Implications of Post-Orogenic Lamprophyres in the Sulu Belt of China
Lamprophyre dykes that crosscut different types of ultrahigh pressure (UHP) metamorphic rocks are widely distributed in the Triassic Sulu UHP...
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The Sources and Evolution of Fluid Phases of Guli Massif Carbonatites (West Siberia): Summarizing of Noble Gases, N2, CO2, H2O Stepwise Crushing Data
AbstractHere we present summarizing of isotopic compositions and element ratios of noble gases, nitrogen, carbon and hydrogen in carbonatites of...
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Petrogenesis of lavas from Mokolo-Kosséhone region, northernmost segment of the Cameroon Volcanic Line: constraints from major/trace elements and Sr-Nd-Pb isotopic data
This study presents major and trace elements, and Sr-Nd-Pb isotope data of the Mokolo-Kosséhone volcanic rock (basanite, trachybasalt, trachyte, and...
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Composition of continental crust altered by the emergence of land plants
The evolution of land plants during the Palaeozoic era transformed Earth’s biosphere. Because the Earth’s surface and interior are linked by tectonic...
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Origin and Tectonic Implications of I-type Granites, North Delhi Fold Belt, NW, India: Insights from Whole Rock Geochemistry and Mineral Compositions
A comprehensive whole-rock geochemical and mineral chemistry study was carried out of granites from the Narnaul and surrounding isolated hills of...
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Applications of Neodymium Isotopes to Ore Deposits and Metallogenic Terranes; Using Regional Isotopic Maps and the Mineral Systems Concept
Although radiogenic isotopes historically have been used in ore genesis studies for age dating and as tracers, here we document the use of regional-...