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Chronological record of the Early Mesozoic underplating in the northern margin of North China - U-Pb chronometry of zircons in the Late Mesozoic andesite from Western Liaoning
Alternative TitleChronological record of the Early Mesozoic underplating in the northern margin of North China - U-Pb chronometry of zircons in the Late Mesozoic andesite from Western Liaoning
Shao Jian1; Zhang Hongfu1; Liu Xiaoming1; Li Zhitong1
2007
Source PublicationPROGRESS IN NATURAL SCIENCE
ISSN1002-0071
Volume17Issue:8Pages:943-947
AbstractCathodoluminescence spectroscopic analysis of zircons in the uppermost sanukites of the early Cretaceous Yixian Formation in Western Liaoning reveals zoning structures of the zircons in the volcanic rocks. LA-ICP-MS chronometry shows that the central part of the zircons is remnant zircon with a U-Pb dating of 254 Ma, which is consistent with the age of the Early Mesozoic underplating granulites, and that the periphery is zircon crystallizing out of the host magma with a U-Pb dating of 116 Ma, which is highly consistent with the Ar-Ar dating of the host volcanic rocks. Compositions of the clinopyroxenes xenocrystals in the sanukites are similar to those of the clinopyroxenes in the underplating granulites, indicating that the granulites accreted to the tower crust in the Early Mesozoic have been reformed and disrupted by the upwelling diapers of the asthenosphere and taken part in formation of the sanukites in the Late Mesozoic.
Other AbstractCathodoluminescence spectroscopic analysis of zircons in the uppermost sanukites of the early Cretaceous Yixian Formation in Western Liaoning reveals zoning structures of the zircons in the volcanic rocks. LA-ICP-MS chronometry shows that the central part of the zircons is remnant zircon with a U-Pb dating of 254 Ma, which is consistent with the age of the Early Mesozoic underplating granulites, and that the periphery is zircon crystallizing out of the host magma with a U-Pb dating of 116 Ma, which is highly consistent with the Ar-Ar dating of the host volcanic rocks. Compositions of the clinopyroxenes xenocrystals in the sanukites are similar to those of the clinopyroxenes in the underplating granulites, indicating that the granulites accreted to the tower crust in the Early Mesozoic have been reformed and disrupted by the upwelling diapers of the asthenosphere and taken part in formation of the sanukites in the Late Mesozoic.
KeywordYIXIAN FORMATION PROVINCE CRATON DISCOVERY XENOLITHS BASALTS BENEATH northern margin of North China Mesozoic volcanic rock U-Pb chronometry of zircon underplating granulite
Indexed ByCSCD
Language英语
CSCD IDCSCD:3178424
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/144361
Collection中国科学院金属研究所
Affiliation1.北京大学
2.中国科学院
3.西北大学
4.中国科学院金属研究所
Recommended Citation
GB/T 7714
Shao Jian,Zhang Hongfu,Liu Xiaoming,et al. Chronological record of the Early Mesozoic underplating in the northern margin of North China - U-Pb chronometry of zircons in the Late Mesozoic andesite from Western Liaoning[J]. PROGRESS IN NATURAL SCIENCE,2007,17(8):943-947.
APA Shao Jian,Zhang Hongfu,Liu Xiaoming,&Li Zhitong.(2007).Chronological record of the Early Mesozoic underplating in the northern margin of North China - U-Pb chronometry of zircons in the Late Mesozoic andesite from Western Liaoning.PROGRESS IN NATURAL SCIENCE,17(8),943-947.
MLA Shao Jian,et al."Chronological record of the Early Mesozoic underplating in the northern margin of North China - U-Pb chronometry of zircons in the Late Mesozoic andesite from Western Liaoning".PROGRESS IN NATURAL SCIENCE 17.8(2007):943-947.
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