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In-situ lithium (Li) concentrations and δ 7 Li of olivine, orthopyroxene (opx) and clinopyroxene (cpx) in mantle xenoliths from the Quaternary Longgang maar provide insights into the nature and evolution of the lithospheric mantle beneath the easterly part of the North China Craton. SIMS analyses show Li partitioning of olivine>opx≥cpx and Li isotopic disequilibrium in each sample. Olivines...
Spinel facies mantle xenoliths from the western North China Craton (NCC) reveal the presence of a Pre-Cambrian protolith (Archean–Proterozoic) modified by recent melt infiltration and refertilisation. Herein we present petrological and geochemical data including highly siderophile elements (HSE) and Re–Os isotopes for a suite of spinel peridotite xenoliths found in the Cenozoic Jining basalts from...
A suite of peridotite xenoliths from Cenozoic Beiyan basalts within the Tancheng-Lujiang (Tan-Lu) wrench fault zone, eastern North China Craton (NCC), has been studied to provide constraints on the nature and evolution of the lithospheric mantle beneath this region. These xenoliths commonly have porphyroclastic, granuloblastic to resorption textures with the absence of coarse-grained texture. They...
In Central China, long-distance effects from collision between the North China and Yangtze cratons, uplift of the Tibetan Plateau and subduction of the Pacific Ocean are believed to converge in the Western Qinling. Mantle xenoliths from Baiguan and Haoti kamafugites in the Western Qinling were investigated to understand the lithospheric structure and mantle metasomatism beneath the orogenic belt....
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