| 大别造山带核部典型燕山期花岗岩岩浆演化的p—T轨迹 |
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| 引用本文： | 王强 邱家骧. 大别造山带核部典型燕山期花岗岩岩浆演化的p—T轨迹[J]. 矿物岩石, 1999, 19(4): 15-20 |
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| 作者姓名： | 王强 邱家骧 |
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| 作者单位： | [1]中国科学院广州地球化学研究所 [2]中国地质大学 |
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| 基金项目： | 原地矿部基础研究项目资助!“大别山1∶5 万九资河、张家咀幅区域地质调查” |
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| 摘 要： | 本文根据相图和多种地质温压计确定了大别造山带核部典型花岗岩岩浆的源区，岩浆房和固结成岩阶段的温度和压力，并建立了区内岩浆演化的ｐ－Ｔ轨迹。该轨迹表明：（１）石鼓尖侵入岩浆上升能力最强，上升的最小距离为２５ｋｍ；（２）天堂寨侵入岩岩浆上升能力也较强，上升的最小距离为５ｋｍ，（３）九资河侵入岩的上升能力最弱，上升距离小于３ｋｍ。（４）石鼓尖和天堂寨岩体为异地侵入体，九资河岩体是一个原地－半原地花岗岩体
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| 关 键 词： | 岩浆演化 p－T轨迹 岩体侵位 大别造山带 花岗岩 |
p-T PATH OF MAGMA EVOLUTION OF TYPICAL YANSHANIAN GRANITES IN THE CORE OF DABIE OROGENIC BELT |
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| Wang Qiang. p-T PATH OF MAGMA EVOLUTION OF TYPICAL YANSHANIAN GRANITES IN THE CORE OF DABIE OROGENIC BELT[J]. Journal of Mineralogy and Petrology, 1999, 19(4): 15-20 |
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| Authors: | Wang Qiang |
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| Abstract: | The temperature and pressure of magmatic source districts, magma chambers and solidified diagenetic stages of typical granites in the core of Dabie orogenic belt are determined by phase diagrams and geological themobarometers. As a result, the p T paths of magma evolution are built. It is suggested that: (1)the magmatic ascending capacity of Shigujian intrusive rocks was the strongest, the minimum distance of ascent was up to 25 km; (2)the Tiantangzhai intrusive rocks was stronger, the minimum distance of ascent was up to 5 km; (3)the Jiuzihe intrusive rocks was the weakest, the distance of ascent was less than 3 km; (4)the one of Shigujian and Tiantangzhai intrusions were allochthonous, and Jiuzihe intrusion was in situ parautochonous. |
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| Keywords: | magmatic evolution p T path intrusion emplacement Dabie Orogenic Belt |
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