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Gang Zeng
Nanjing University
GeologyBasaltGeochemistryMagmaMantle (geology)
22Publications
9H-index
372Citations
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Publications 18
Newest
#1Ye He (NU: Nanjing University)
#2Li-Hui Chen (Center for Excellence in Education)H-Index: 14
Last. Lie-Wen Xie (CAS: Chinese Academy of Sciences)H-Index: 30
view all 9 authors...
Source
#1Xun Yu (Tongji University)H-Index: 7
#2Gang Zeng (NU: Nanjing University)H-Index: 9
Last. Zhi-Qiang Yu (NU: Nanjing University)
view all 5 authors...
ABSTRACTRecently, besides magma–rock and rock–rock reaction, magma–magma interaction at mantle depth has been proposed as an alternative mechanism to produce diverse compositions of mantle. Clinopy...
Source
#1Xun Yu (Tongji University)H-Index: 7
#2Gang Zeng (NU: Nanjing University)H-Index: 9
Last. Tao Yang (NU: Nanjing University)H-Index: 13
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Abstract Cenozoic intraplate basalts are widely distributed along the southeastern margin of Eurasia. Both carbonated and eclogitic/pyroxenitic components, which are considered related to oceanic crust recycling, have been identified in the mantle source of these basalts. However, the origin of the recycled oceanic crust and the genetic relationship between different source lithologies remain unclear. Here, we assess the source lithologies of late Miocene intraplate basalts from Ninghai, Zhejian...
1 CitationsSource
#1Wenjing Xu (NU: Nanjing University)H-Index: 3
#2Xisheng Xu (NU: Nanjing University)H-Index: 24
Last. Gang Zeng (NU: Nanjing University)H-Index: 9
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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 magmas. The early Paleozoic intracontinental magmatic rocks in the South China Block (SCB) are dominantly granitoids, which cover a combined area of ~ 22,000 km 2 . In contrast, exposures of mafic rocks total only ~ 45 km 2 . These...
7 CitationsSource
#1Xun Yu (NU: Nanjing University)H-Index: 7
#2Li-Hui Chen (NU: Nanjing University)H-Index: 14
Last. Gang Zeng (NU: Nanjing University)H-Index: 9
view all 3 authors...
Abstract Isotopic compositions of continental flood basalts are essential to understand their genesis and to constrain the character of their mantle sources. Because of potential crustal contamination, it needs to be evaluated if and to which degree these basalts record original isotopic signals of their mantle sources and/or crustal signatures. This study examines the Sr, Nd, Hf, and Pb isotopic compositions of the late Cenozoic Xinchang–Shengzhou (XS) flood basalts, a small-scale continental f...
4 CitationsSource
#1CHUZhuyin (CAS: Chinese Academy of Sciences)H-Index: 28
#2Yan Yan (China National Nuclear Corporation)H-Index: 1
Last. Jinghui Guo (CAS: Chinese Academy of Sciences)H-Index: 47
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Abstract We present Re–Os and PGE (platinum group elements), together with major–, trace–element and Sr–Nd isotope data, to further constrain the petrogenesis for the Cenozoic basalts in central-eastern China. The basalts include low-Ca alkali, high-Ca alkali and tholeiitic varieties. Most low-Ca alkali basalts have unradiogenic 187 Os/ 188 Os (mostly 187 Os/ 188 Os ratios (up to > 0.4), indicating involvements of sulfide/PGE-alloy segregation–AFC (assimilation–fractionation–contamination) proce...
5 CitationsSource
#1Gang Zeng (NU: Nanjing University)H-Index: 9
#2Li-Hui Chen (NU: Nanjing University)H-Index: 14
Last. Saskia Erdmann (NU: Nanjing University)H-Index: 11
view all 6 authors...
In addition to magma-rock and rock-rock reaction, magma-magma interaction at mantle depth has recently been proposed as an alternative mechanism to produce the compositional diversity of intraplate basalts. However, up to now no compelling geochemical evidence supports this novel hypothesis. Here we present geochemistry for the Longhai basalts from Fujian Province, southeastern China, which demonstrates the interaction between two types of magma at mantle depth. At Longhai, the basalts form two ...
10 CitationsSource
#1Yuan Zhong (NU: Nanjing University)H-Index: 5
#2Li-Hui Chen (NU: Nanjing University)H-Index: 14
Last. Gang Zeng (NU: Nanjing University)H-Index: 9
view all 6 authors...
Abstract Ocean island basalts (OIBs) are geochemically diverse in radiogenic isotopes, a feature that is commonly ascribed to record the chemical heterogeneity of their deep-mantle source, where significant compositional variation relates to variable amounts of ancient recycled crustal material. Although Mg is a major constituent of the mantle, it is still unclear whether Mg isotopes of OIBs predominantly correspond to deep-mantle source heterogeneity or processes such as partial melting. Here, ...
17 CitationsSource
#1Jian-Qiang Liu (NU: Nanjing University)H-Index: 4
#2Li-Hui Chen (NU: Nanjing University)H-Index: 14
Last. Saskia Erdmann (NU: Nanjing University)H-Index: 11
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Melt-rock interaction between ascending melt and peridotite results in mantle metasomatism and also leads to compositional modification of the primary melt. While this process is known to occur, it is less well understood how the reactions and the composition of the resulting magma temporally evolve. Here whole-rock major and trace element, Sr-Nd-Pb-Hf isotopes, and olivine major element composition of Quaternary Nuominhe basalts in the Greater Khingan Range of northeast China are presented to u...
8 CitationsSource
#1Gang Zeng (NU: Nanjing University)H-Index: 9
#2Zhenyu HeH-Index: 22
Last. Li-Hui Chen (NU: Nanjing University)H-Index: 14
view all 5 authors...
Widespread late Mesozoic volcanic magmatism in southeastern China is generally thought to represent products in response to the subduction of paleo-Pacific plate; however, it remains unclear when this process began to affect the mantle and the related magmatism. Here we present a systematic study on the source lithology of late Mesozoic basalts in this area to highlight a link between lithological variations of mantle and subduction process of paleo-Pacific plate. Late Mesozoic basalts can be su...
6 CitationsSource
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