NDLI: Si-and alkali-rich melt inclusions in minerals of mantle peridotites from eastern China: Implication for lithospheric evolution

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Relationships between δ $^{18}$O in summer precipitation and temperature and moisture trajectories at Muztagata, western China

Variations of δ $^{18}$O in precipitation from the Muztagata Glacier, East Pamirs

Si-and alkali-rich melt inclusions in minerals of mantle peridotites from eastern China: Implication for lithospheric evolution

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Si-and alkali-rich melt inclusions in minerals of mantle peridotites from eastern China: Implication for lithospheric evolution

Content Provider	Springer Nature Link
Author	Fan, Qicheng Sui, Jianli Xu, Ping Li, Ni Sun, Qian Wang, Tuanhua
Copyright Year	2006
Abstract	Minerals of spinel-and garnet-facies mantle xenoliths entrained in Cenozoic basalts from eastern China (North China, Northeastern China and Southeastern China coastal area) contains lots of melt inclusions. Studies on these melt inclusions show that the glass inclusions are rich in SiO$_{2}$ (60%-68%) and alkalis (K$_{2}$O+Na$_{2}$O=5%-11%, especially for K$_{2}$O) as well as volatiles such as H$_{2}$O and CO$_{2}$ (2%-7%), which belong to dacites and andesites of the high-K calcic alkali series rocks with few shoshonites. High Al and Ca diopside in melt inclusion is the product of melt crystallization at high temperature and pressure, rather than the product of devitrification. Results show that these K-rich (in general K$_{2}$O>3%) intermediate-acidic silicate melt inclusions have characteristics of continent without a genetical link to host basalts and their phenocrystic minerals. Thus, these trapped melt inclusions represent melts of Mesozoic lithospheric mantle-crust interaction and imply that the continental lithospheric mantle beneath eastern China had undergone fragmentation and recreation processes during the Mesozoic and Cenozoic periods. This result undoubtly provides important implication for the evolution of sub-continental lithosphere beneath eastern China. We propose that these Si-and alkalis-rich melts should be responsible for the mantle chemical heterogeneity underneath eastern China.
Starting Page	43
Ending Page	49
Page Count	7
File Format	PDF
ISSN	10069313
Journal	Science in China Series D: Earth Sciences
Volume Number	49
Issue Number	1
Language	English
Publisher	Science in China Press
Publisher Date	2006-01-01
Publisher Place	Beijing
Access Restriction	Subscribed
Subject Keyword	Si-and alkali-rich melt inclusion mantle peridotite lithospheric evolution eastern China Geosciences
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences

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Petrochemistry of peridotites from North China: Significance for lithospheric mantle evolution

Melt–peridotite interaction in the shallow lithospheric mantle of the North China Craton: evidence from melt inclusions in the quartz-bearing orthopyroxene-rich websterite from Hannuoba

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Multistage melt/fluid-peridotite interactions in the refertilized lithospheric mantle beneath the North China Craton: constraints from the Li–Sr–Nd isotopic disequilibrium between minerals of peridotite xenoliths

Si-and alkali-rich melt inclusions in minerals of mantle peridotites from eastern China: Implication for lithospheric evolution

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Si-and alkali-rich melt inclusions in minerals of mantle peridotites from eastern China: Implication for lithospheric evolution