Results 71 to 80 of about 114 (105)
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Journal of Geophysical Research: Solid Earth, 1997
There is overwhelming and incontrovertible petrological and geophysical evidence for the significant role played by mantle‐derived mafic magma in the generation and growth of continental crust. Likewise, intrusion of mafic magmas beneath or into continental crust is very likely the major source of enthalpy that drives intracrustal differentiation.
Federica Raia, Frank J. Spera
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There is overwhelming and incontrovertible petrological and geophysical evidence for the significant role played by mantle‐derived mafic magma in the generation and growth of continental crust. Likewise, intrusion of mafic magmas beneath or into continental crust is very likely the major source of enthalpy that drives intracrustal differentiation.
Federica Raia, Frank J. Spera
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Lithos, 2017
Abstract Magma mixing and mingling are described from different tectonic environments and are key mechanisms in the evolution of granitoids. The literature focuses on the interaction between mafic and felsic magmas with only limited research on the interaction between similar magmas. Here, we investigate instead hybridization processes between felsic
Martin Schwindinger, Roberto F. Weinberg
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Abstract Magma mixing and mingling are described from different tectonic environments and are key mechanisms in the evolution of granitoids. The literature focuses on the interaction between mafic and felsic magmas with only limited research on the interaction between similar magmas. Here, we investigate instead hybridization processes between felsic
Martin Schwindinger, Roberto F. Weinberg
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Geochimica et Cosmochimica Acta, 1991
Abstract The initial Pb isotopic composition of anatectic granites is modelled as a mixture of Pb derived from major minerals that have characteristically low 238 U 204 Pb and 232 Th 204 Pb ratios (i.e., feldspars, biopyroboles, etc.) with Pb contributed from dissolved accessory minerals with characteristically high
John P Hogan, A.Krishna Sinha
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Abstract The initial Pb isotopic composition of anatectic granites is modelled as a mixture of Pb derived from major minerals that have characteristically low 238 U 204 Pb and 232 Th 204 Pb ratios (i.e., feldspars, biopyroboles, etc.) with Pb contributed from dissolved accessory minerals with characteristically high
John P Hogan, A.Krishna Sinha
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The Role of Deep Crustal Anatexis in the Generation of High-Silica Rhyolites
2017Geochemical analyses of leucosomes in deep crustal migmatites and gneisses provide a better understanding of the connection between the deep crust and large-volume, high-silica rhyolites. Similarities between the leucosomes and rhyolites suggest some rhyolites may be sourced from the deep crust.
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MATANZAS STOCK: TRIASSIC CRUSTAL ANATEXIS IN THE MAYA BLOCK
Geological Society of America Abstracts with Programs, 2022Ricardo Milián de la Cruz +2 more
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Isotope disequilibrium caused by the influx of fluids during crustal anatexis
Chemical Geology, 2023Yang Wang (汪洋) +5 more
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Evidence of marked Sr isotope disequilibrium during crustal anatexis
1995Congresso autunnale ...
G. R. DAVIES, TOMMASINI, SIMONE
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