Zinc isotope evidence for extensive carbonate recycling in the Arctic asthenosphere [PDF]
Nature CommunicationsCarbon in the asthenosphere is unevenly distributed, reflecting interactions between the depleted mantle and materials added by plumes or subducting slabs.
Wei-Qi Zhang +11 more
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The presence of ancient subducted oceanic crust contributes to seismic anomalies in Large Low Shear Velocity Provinces [PDF]
Communications Earth & EnvironmentLarge Low Shear Velocity Provinces (LLSVPs) near the core-mantle boundary (CMB) are key yet enigmatic structures. Their origin is often linked to the accumulation of subducted mid-ocean ridge basalt (MORB), but computational models question MORB as the ...
Ewa Krymarys +3 more
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Geophysical Monograph Series, Page 137-165., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Konstantin Litasov +3 more
wiley +5 more sources
Geophysical Monograph Series, Page 435-447., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Peter E. Marshall +2 more
wiley +1 more source
Geochemical characterization of basalts from west of Khash (SE Iran): an approach to the nature of the mantle source [PDF]
پترولوژی, 2017 Monogenic basaltic cinder cones and lava flows from west of Khash are part of volcanic arc of northern Makran, formed as a result of subduction of Oman oceanic lithosphere beneath the Eurasian plate. The basalts belong to medium-K calc-alkaline series as
Zahra Firouzkouhi +4 more
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Geochemical characterization of oceanic basalts using Artificial Neural Network
Geochemical Transactions, 2009 The geochemical discriminate diagrams help to distinguish the volcanics recovered from different tectonic settings but these diagrams tend to group the ocean floor basalts (OFB) under one class i.e., as mid-oceanic ridge basalts (MORB).
Iyer Sridhar D, Das Pranab
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Chemical Geodynamics Insights From a Machine Learning Approach
Geochemistry, Geophysics, Geosystems, 2022 The radiogenic isotope heterogeneity of oceanic basalts is often assessed using 2D isotope ratio diagrams. But because the underlying data are at least six dimensional (87Sr/86Sr, 143Nd/144Nd, 176Hf/177Hf, and 208,207,206Pb/204Pb), it is important to ...
A. Stracke +4 more
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Geologica Acta, 2019 Amphibolites included in the metapelitic sequence and as xenoliths in intrusive magmatic rocks outcropping in the southern sector of the Aluminé Igneous-Metamorphic Complex (AIMC), Neuquén, Argentina, are studied in detail in order to determine their ...
I. URRAZA, S. DELPINO, L. GRECCO
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Solid Earth Sciences, 2022 Identifying magmatic rock associations in a subduction zone is substantial for understanding the related geodynamic evolution. The final closure time of the Paleo-Asian Ocean and the exact subduction processes have continuously been controversial ...
Jialiang Li +5 more
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Deep Sea Research Part B. Oceanographic Literature Review, 1982 Terrestrial basalts are generally saturated with two or more crystal species on eruption and display a limited range of major‐element composition in combination with wide variations in concentrations and ratios of those trace elements that are excluded from the common crystal phases during crystal‐liquid separation events [Jamieson and Clarke, 1970 ...
openaire +2 more sources