准噶尔板块东北缘富铌玄武岩的发现及其地质意义

被引：11

作者：

张海祥

牛贺才

于学元

单强

Hiroaki Sato

Junichi Ito

机构：

[1] 中国科学院广州地球化学研究所

[2] 日本神户大学理学部地球惑星科学教室

来源：

地质找矿论丛 | 2003年 / 01期

关键词：

富铌玄武岩; 主量元素; 板块; 断块; 洋壳俯冲; 地球化学特征; 准噶尔; 绰罗斯部; 东北; 方向;

D O I：

暂无

中图分类号：

P588.1 [岩浆岩（火成岩）];

学科分类号：

摘要：

Nb rich basalt is discovered for the first time in uoranggekuduke formation of Lower carboniferous series, Fuyun county in the Northeast margin of Junnggar plate. It is derived from depth of 70～100 km and formed by partial melted peridodite of the mantle wedge which was replaced by adakite melting material, and is the product of the subduction of the palaco Asia ocean plate. The discovery implies a south subduction of the palaeo Asia oceanic crust toward Junggar plate during Early Carboniferous Epoch.

引用

页码：71 / 72

页数：2

共 5 条

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[2] Progressive enrichment of island arc mantle by melt-peridotite interaction inferred from Kamchatka xenoliths. Kepezhinskas P,Defant M J,Drummond M S. Geochimica et Cosmochimica Acta . 1996
[3] Late Miocene adakites and Nb-enriched basalts from Vizcaino Peninsula, Mexico: indicators of East Pacific Rise subduction below southern Baja California?. Robles A A,Caimus T,Benoit M,et al. The Journal of Geology . 2001
[4] Late Miocene adakites and Nb-enriched basalts from Vizcaino Peninsula, Mexico: indicators of East Pacific Rise subduction below southern Baja California?. Robles A A,Caimus T,Benoit M,et al. The Journal of Geology . 2001
[5] The geochemistry of young volcanism throughout western Panama and southeastern Costa Rica: an overview. Defant M J,Jackson T E,Drummond M S,et al. Journal of the Geological Society of London . 1992

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