Journal ArticleDOI
Carbonated mantle sources for Cenozoic intra-plate alkaline basalts in Shandong, North China
TLDR
In this article, the authors analyzed Cenozoic intra-continental alkaline basalts from Shandong province, North China and found that the strongly alkaline rocks have stronger negative K, Zr, Hf, and Ti anomalies (Hf/Hf* = 0.59-0.71) than do the weakly alkaline ones.About:
This article is published in Chemical Geology.The article was published on 2010-04-30. It has received 179 citations till now. The article focuses on the topics: Olivine & Peridotite.read more
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Deep carbon cycles constrained by a large-scale mantle Mg isotope anomaly in eastern China
Shuguang Li,Shuguang Li,Wei Yang,Shan Ke,Xunan Meng,Heng-Ci Tian,Lijuan Xu,Yongsheng He,Jian Huang,Xuan-Ce Wang,Qunke Xia,Weidong Sun,Xiaoyong Yang,Zhong-Yuan Ren,Haiquan Wei,Yongsheng Liu,Fancong Meng,Jun Yan +17 more
TL;DR: In this article, a large-scale mantle low δ26Mg anomaly in eastern China has been delineated, suggesting the contribution of sedimentary carbonates recycled into the upper mantle, but limited into the lower mantle.
Journal ArticleDOI
Magnesium isotopic systematics of continental basalts from the North China craton: Implications for tracing subducted carbonate in the mantle
TL;DR: In this paper, the authors explore the possibility of tracing recycled carbonate by using Mg isotopes and evaluate the effects of the western Pacific oceanic subduction on the upper mantle evolution of the North China craton.
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Origin of low δ26Mg Cenozoic basalts from South China Block and their geodynamic implications
TL;DR: Yang et al. as discussed by the authors studied the origin of low δ26Mg basalts and evaluated whether Mg isotope ratios of basalts can be used to trace deeply recycled carbon, high-precision major and trace element and mg isotopic analyses on the Cenozoic alkaline and tholeiitic basalts from the South China Block, eastern China.
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Zinc isotope evidence for a large-scale carbonated mantle beneath eastern China
TL;DR: In this paper, a large set of zinc (Zn) stable isotope data for continental basalts from eastern China were reported to investigate the application of Zn isotopes as a new tracer of deep carbonate cycling.
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Reactive Infiltration of MORB-Eclogite-Derived Carbonated Silicate Melt into Fertile Peridotite at 3 GPa and Genesis of Alkalic Magmas
Ananya Mallik,Rajdeep Dasgupta +1 more
TL;DR: In this paper, the presence of only 0·65 wt % of CO2 in the bulk melt-rock mixture (corresponding to 25wt % BAC þ lherzolite mixture), nephelinitic-basanite melts can be generated by partial reactive crystallization of basaltic andesite as opposed to basanites produced in volatile-free conditions.
References
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The composition of the Earth
William F. McDonough,Shen-Su Sun +1 more
TL;DR: In this paper, the authors compared the relative abundances of the refractory elements in carbonaceous, ordinary, and enstatite chondritic meteorites and found that the most consistent composition of the Earth's core is derived from the seismic profile and its interpretation, compared with primitive meteorites, and chemical and petrological models of peridotite-basalt melting relationships.
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Abundances of the elements: Meteoritic and solar
Edward Anders,Nicolas Grevesse +1 more
TL;DR: In this article, new abundance tables have been compiled for C1 chondrites and the solar photosphere and corona, based on a critical review of the literature to mid-1988.
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A chemical classification of volcanic rocks based on the total alkali-silica diagram
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Composition of the Earth
TL;DR: In this article, the authors reported that the resulting densities in the lower mantle are in good agreement with shock-wave measurements on rocks having FeO contents in the range 10 ± 2% by weight.
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Mantle geochemistry: the message from oceanic volcanism
TL;DR: Basaltic volcanism'samples' the Earth's mantle to great depths, because solid-state convection transports deep material into the (shallow) melting region as mentioned in this paper.