大别造山带白马尖花岗岩体的钕，锶同位素地球化学研究

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大别造山带白马尖花岗岩体的钕，锶同位素地球化学研究
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                        葛宁洁 柏林 等  葛宁洁 柏林 等

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中图分类号:P588.121 P595
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Nd-Sr Isotope Geochemistry of the Baimajian Granite in the Dabie Orogen

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GE Ningjie,LI Huiyu,HOU Zhenhui,BO Lin,QIN Liping Department of Earth and Space Science,University of Science and Technology of China,Hefei,230026,Anhui Geological Society of Geology of Anhui province. Hefei,230001,Anhui
GE Ningjie,LI Huiyu,HOU Zhenhui,BO Lin,QIN Liping Department of Earth and Space Science,University of Science and Technology of China,Hefei,230026,Anhui Geological Society of Geology of Anhui province. Hefei,230001,Anhui

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摘要:

大别造山带白马尖花岗岩体属燕山期侵入岩，为中生代大别山区岩浆活动的产物，为碰撞后花岗岩，锶，钕，同位素数据及稀土元素数据表明，白马尖花岗岩体为壳幔混合型，1．2－1．7Ga的钕模式年龄为其源岩的平均地壳存留年龄，北大别花岗岩类岩石的物质来源并不一致。

关键词:大别造山带花岗岩钕同位素稀土元素锶同位素地球化学

Abstract:

The Baimajian granite in the Dabie orogen is a Yanshanian intrusion resulting from Mesozoic magmatism. It is post-collisional granite. Nd and Sr isotope and REE data show that the intrusion is of crust-mantle mixing type. Their Nd model age is 1. 2~1. 7 Ma, which is the average crustal retention age of their protoliths. The material sources of the granitoid rocks at Baimajian in the northern Dabie are different.

Key words:Dabie orogen,Baimajian,Nd isotope,

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葛宁洁柏林等.2001.大别造山带白马尖花岗岩体的钕，锶同位素地球化学研究[J].地质论评,47(2):184-187,[DOI].
GE Ningjie, LI Huiyu, HOU Zhenhui, BO Lin, QIN Liping Department of Earth, Space Science, University of Science, Technology of China, Hefei,,Anhui Geological Society of Geology of Anhui province. Hefei,,Anhui.2001. Nd-Sr Isotope Geochemistry of the Baimajian Granite in the Dabie Orogen[J]. Geological Review,47(2):184-187.

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