| 赵秀德,井喜贵,罗相风,陆志军.太行山太古代阜平群中的刚玉、矽线石型矿床的成因[J].地质找矿论丛,1987,(4):50-61 |
| 太行山太古代阜平群中的刚玉、矽线石型矿床的成因 |
| ORIGIN OF CORUNDUM-SILLIMANITE DEPOSIT IN ARCHEAN FUPING GROUP, TAIHANG MOUNTAINS |
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| DOI：10.6053/j.issn.1001-1412.1987.4. 005 |
| 中文关键词: 刚玉矽线石型矿床 太古界阜平群 矽线石角闪岩亚相 太行山 |
| 英文关键词: |
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| 中文摘要: |
| 太行山太古代阜平群中刚玉矽线石型矿床,产于太古界阜平群地层中,矿体顶板围岩是长英质片麻岩。长英质片麻岩系流纹岩的变质岩。刚玉矽线石矿体系沉积变质而成。局部地段刚玉产出,除与原岩铝过饱和程度有关外,并与混合岩过程中钾交代作用有明显关系。含矿岩系的变质强度达到了矽线石角闪岩亚相。 |
| 英文摘要: |
| The wall rocks of corundum-sillimanite deposit in Fuping group is believed to be felsic gneiss. According to the main chemical composition of felsic gneiss, trace elements and REE partition pattern it is determined as Archean FⅡ-type rhyolite. Corundum and sillimanite are formed predominently during the regional nhetamorphism. K-metasomatism in migmatitization has played a positive role in the further enrichment of some segments. The ore-forming temperature ranges from 500°-700°℃, 2.2-6 kilobar. The regional metamorphism has reached the grade of sillimanite hornblende subfacies. The authors believe that this deposit belongs to sedimentary-metamorphic one. |
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