Subduction-related metasomatic mantle source in the eastern Central Asian Orogenic Belt: Evidence from amphibolites in the Xilingol Complex, Inner Mongolia, China
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DOI: 10.1016/j.gr.2015.11.015
Abstract: Abstract The Central Asian Orogenic Belt (CAOB) formed mainly in the Paleozoic due to the closure of the Paleo-Asian oceanic basins and accompanying prolonged accretion of pelagic sediments, oceanic crust, magmatic arcs, and Precambrian terranes.… read more here.
Keywords: source; mantle source; mafic rocks; subduction ... See more keywords
Origin of Permian extremely high Ti/Y mafic lavas and dykes from Western Guangxi, SW China: Implications for the Emeishan mantle plume magmatism
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Asian Earth Sciences"
DOI: 10.1016/j.jseaes.2016.09.005
Abstract: Abstract Late Permian mafic flows and dikes are prominent features in and around the Western Guangxi region in southern China. Based on petrographic, geochemical and Sr-Nd isotopic data, the western Guangxi mafic rocks are geochemically… read more here.
Keywords: origin permian; mafic rocks; western guangxi; mafic ... See more keywords
Crustal contamination versus an enriched mantle source for intracontinental mafic rocks: Insights from early Paleozoic mafic rocks of the South China Block
Sign Up to like & getrecommendations! Published in 2017 at "Lithos"
DOI: 10.1016/j.lithos.2017.06.023
Abstract: Abstract Several recent studies have documented that the silicic rocks (SiO 2 > 65 wt.%) comprising Silicic Large Igneous Provinces are derived from partial melting of the crust facilitated by underplating/intraplating of “hidden” large igneous province-scale basaltic… read more here.
Keywords: early paleozoic; enriched mantle; mantle source; mafic ... See more keywords
The southwestern extension of the Jiao-Liao-Ji belt in the North China Craton: Geochronological and geochemical evidence from the Wuhe Group in the Bengbu area
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DOI: 10.1016/j.lithos.2018.01.021
Abstract: Abstract The Wuhe complex is located at the southeastern margin of the North China Craton. The complex consists of metamorphosed Paleoproterozoic potassic granitoids and supracrustal rocks, of which the latter include the Fengyang and Wuhe… read more here.
Keywords: meta mafic; group; wuhe; north china ... See more keywords
The effects of selective contamination on the early Paleozoic intracontinental mafic rocks in the South China Block: New insights from high-δ18O zircon
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DOI: 10.1016/j.lithos.2020.105854
Abstract: Abstract The petrogenesis of continental mafic rocks that are enriched in large-ion lithophile elements (LILE) and that have enriched Sr–Nd–Hf isotope compositions is debated, with some models suggesting an enriched mantle source and others arguing… read more here.
Keywords: early paleozoic; south china; contamination; rocks south ... See more keywords
Lithospheric extension in response to subduction of the Paleo-Pacific Plate: Insights from Early Jurassic intraplate volcanic rocks in the Sk2 Borehole, Songliao Basin, NE China
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DOI: 10.1016/j.lithos.2020.105871
Abstract: Abstract Subduction of the Paleo-Pacific and Mongol–Okhotsk oceanic plates is widely believed to have caused extensive Mesozoic magmatism and lithospheric deformation in East Asia. However, it remains unclear how the two tectonic domains affected NE… read more here.
Keywords: songliao basin; early jurassic; china; mafic rocks ... See more keywords
Geochemistry and petrogenesis of Archean mafic rocks from the Amsaga area, West African craton, Mauritania
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DOI: 10.1016/j.precamres.2019.02.005
Abstract: This study focuses on the Archean crust from the West African Craton in Mauritania (Amsaga area). The Amsaga Archean crust mainly consists of TTG and thrust-imbricated slices of mafic volcanic rocks, which have been affected… read more here.
Keywords: craton mauritania; amsaga area; west african; african craton ... See more keywords
Paleoproterozoic subduction within the Yangtze Craton: Constraints from Nb-enriched mafic dikes in the Kongling complex
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DOI: 10.1016/j.precamres.2020.105634
Abstract: Abstract Niobium-enriched mafic rocks constitute a rare suite of rocks formed in the subduction-related settings and provide important insights into mantle sources and geodynamic processes associated with plate subduction. In this contribution, we report newly-defined… read more here.
Keywords: kongling complex; mafic dikes; craton; subduction ... See more keywords
Geochemical constraints on the petrogenesis of mafic rocks (metadolerites) from the Proterozoic Shillong Basin, Northeast India: implications for growth of the Greater Indian Landmass
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DOI: 10.1017/s0016756823000237
Abstract: The Paleo-Mesoproterozoic Shillong Basin of the Assam-Meghalaya Gneissic Complex is exposed in parts of Northeast India. The studied metadolerites are from the volcano-sedimentary sequence of Shillong Basin from the Borjuri area in the Mikir Massif.… read more here.
Keywords: shillong basin; basin; mafic rocks; northeast india ... See more keywords
An Acid-Based Method for Highly Effective Baddeleyite Separation from Gram-Sized Mafic Rocks
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DOI: 10.1021/acsomega.1c06264
Abstract: Dating mafic igneous rocks (silica-undersaturated) is difficult for the lack of suitable minerals such as zircons (ZrSiO4) commonly found in the sialic rocks such as granites. In this regard, baddeleyite (ZrO2) has been long recognized… read more here.
Keywords: baddeleyite; mafic rocks; gram sized; method ... See more keywords
New identification and significance of Early Cretaceous mafic rocks in the interior South China Block
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DOI: 10.1038/s41598-021-91045-1
Abstract: Early Cretaceous mafic rocks are first reported in the northern Guangxi region from the western Qin-Hang belt in the interior South China Block. A systematic investigation of zircon U–Pb dating, whole-rock geochemistry, Sm–Nd isotopes and… read more here.
Keywords: interior south; early cretaceous; south china; mafic ... See more keywords