Articles with "metasomatism" as a keyword



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Carbonate metasomatism in the lithospheric mantle: Implications for cratonic destruction in North China

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Published in 2018 at "Science China Earth Sciences"

DOI: 10.1007/s11430-017-9185-2

Abstract: The activity of melts and fluids may have played a key role in inducing the destruction of the eastern North China Craton in the early Cretaceous. Carbonate melts are important agents in mantle metasomatism and… read more here.

Keywords: lithospheric mantle; metasomatism; type carbonate; carbonate metasomatism ... See more keywords
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A metasomatic mechanism for the formation of Earth's earliest evolved crust

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Published in 2017 at "Earth and Planetary Science Letters"

DOI: 10.1016/j.epsl.2017.01.022

Abstract: Abstract Following giant impacts the early Hadean Earth was shrouded in a steam atmosphere for durations on the order of 1 Ma. In order to investigate the potential of this atmosphere to fractionate major elements… read more here.

Keywords: metasomatic mechanism; metasomatism; crust; mechanism formation ... See more keywords
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Seismic evidence for depth-dependent metasomatism in cratons

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Published in 2018 at "Earth and Planetary Science Letters"

DOI: 10.1016/j.epsl.2018.03.018

Abstract: Abstract The long-term stability of cratons has been attributed to low temperatures and depletion in iron and water, which decrease density and increase viscosity. However, steady-state thermal models based on heat flow and xenolith constraints… read more here.

Keywords: depth; metasomatism; water; seismic evidence ... See more keywords
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On the (mis)behavior of water in the mantle: Controls on nominally anhydrous mineral water content in mantle peridotites

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Published in 2018 at "Earth and Planetary Science Letters"

DOI: 10.1016/j.epsl.2018.07.033

Abstract: Abstract In magmatic settings, water behaves as an incompatible species and should be depleted during melting and enriched during metasomatism. Previous studies have identified correlations between nominally anhydrous mineral (NAM) water content ([H2O]) and indices… read more here.

Keywords: nominally anhydrous; metasomatism; mantle; water ... See more keywords
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Petrochemistry of the metasomatized Neoarchean Lower Transvaal Supergroup carbonate from the Kanye Basin (south Botswana)

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Published in 2019 at "Journal of African Earth Sciences"

DOI: 10.1016/j.jafrearsci.2018.11.018

Abstract: Abstract The Taupone Dolomite Group (Lower Transvaal Supergroup) is a carbonate platform sequence that rimmed the north western Kaapvaal Craton during the Neoarchean-Paleoproterozoic (ca. 2.6–2.5 Ga). The dolostones of the Taupone Dolomite Group in Botswana are… read more here.

Keywords: supergroup carbonate; lower transvaal; transvaal supergroup; formation ... See more keywords
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Major and trace element, and Sr isotope compositions of clinopyroxene phenocrysts in mafic dykes on Jiaodong Peninsula, southeastern North China Craton: Insights into magma mixing and source metasomatism

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Published in 2018 at "Lithos"

DOI: 10.1016/j.lithos.2018.01.031

Abstract: Abstract Early Cretaceous mafic dyke swarms are widely developed on Jiaodong Peninsula in the southeastern part of the North China Craton (NCC), but their petrogenesis remains enigmatic. We have examined the in-situ major element, trace… read more here.

Keywords: clinopyroxene phenocrysts; metasomatism; source; group ... See more keywords
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Experimental constraints on metasomatism of mantle wedge peridotites by hybridized adakitic melts

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Published in 2018 at "Lithos"

DOI: 10.1016/j.lithos.2018.03.006

Abstract: Abstract In this study, a series of high-pressure (1.5 GPa) and high-temperature (1000–1300 °C) experiments were performed to investigate the petrological imprints of adakitic metasomatism on mantle wedge peridotites. Reaction couples were prepared using a powdered adakite… read more here.

Keywords: adakitic melts; metasomatism; hybridized adakitic; metasomatism mantle ... See more keywords
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Multiple metasomatism of the lithospheric mantle beneath the northeastern North China Craton

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Published in 2020 at "Lithos"

DOI: 10.1016/j.lithos.2020.105719

Abstract: Abstract Mantle xenoliths carried by the Cenozoic basalts in Huinan are composed of harzburgite, dunite, lherzolite, wehrlite, and pyroxenite. These rocks provide an opportunity to trace the composition and evolution of the lithospheric mantle beneath… read more here.

Keywords: lithospheric mantle; metasomatism; mantle beneath; northeastern north ... See more keywords

The evolution of the Kaapvaal craton: A multi-isotopic perspective from lithospheric peridotites from Finsch diamond mine

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Published in 2019 at "Precambrian Research"

DOI: 10.1016/j.precamres.2019.105380

Abstract: Abstract Accurately dating the formation and modification of Earth’s sub-cratonic mantle still faces many challenges, primarily due to the long and complex history of depletion and subsequent metasomatism of this reservoir. In an attempt to… read more here.

Keywords: kaapvaal craton; metasomatism; finsch peridotites; mine ... See more keywords

Complex Neoarchean mantle metasomatism: Evidence from sanukitoid diorites-monzodiorites-granodiorites in the northeastern North China Craton

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Published in 2020 at "Precambrian Research"

DOI: 10.1016/j.precamres.2020.105692

Abstract: Abstract Mantle metasomatism is a major factor leading to diverse arc magmatism. Late Neoarchean sanukitoid diorites-quartz diorites-monzodiorites-granodiorites (DQMGs) are widespread in the North Liaoning Block, northeastern North China Craton, and were evidently emplaced into Neoarchean… read more here.

Keywords: diorites monzodiorites; monzodiorites granodiorites; metasomatism; mantle metasomatism ... See more keywords
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Can metasomatic weakening result in the rifting of cratons

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Published in 2017 at "Tectonophysics"

DOI: 10.1016/j.tecto.2017.06.013

Abstract: Abstract Cratons are strong and their preservation demonstrates that they resist deformation and fragmentation. Yet several cratons are rifting now, or have rifted in the past. We suggest that cratons need to be weakened before… read more here.

Keywords: metasomatism; craton; rifting cratons; mantle lithosphere ... See more keywords