| 四川攀西地区基性超基性层状岩体锶同位素比值 |
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| 引用本文： | 姚素珠,董宜宝. 四川攀西地区基性超基性层状岩体锶同位素比值[J]. 成都理工大学学报(自然科学版), 1988, 0(3) |
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| 作者姓名： | 姚素珠 董宜宝 |
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| 摘 要： | 红格、攀枝花等含钒钛磁铁矿的基性超基性层状岩体的锶同位素初始比为0.7047±0.0003,巴洞、新街等小岩体的锶初始比为0.7057±0.0002,川滇大面积分布的峨眉山玄武岩锶初始比为0.7055±0.0004,后两者十分接近。推测形成含矿岩体的岩浆从大陆地幔分离的时间早于玄武岩浆。
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| 关 键 词： | 锶同位素初始比 层状侵入体 玄武岩 攀西裂谷带 峨眉山武玄岩 |
STRONTIUM ISOTOPIC RATIOS IN BASIC-ULTRABASIC LAYERED ROCKS OF PANXI AREA, SICHUAN PROVINCE |
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| Yao Suzhu,Dong Yibao. STRONTIUM ISOTOPIC RATIOS IN BASIC-ULTRABASIC LAYERED ROCKS OF PANXI AREA, SICHUAN PROVINCE[J]. Journal of Chengdu University of Technology: Sci & Technol Ed, 1988, 0(3) |
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| Authors: | Yao Suzhu Dong Yibao |
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| Affiliation: | Yao Suzhu;Dong Yibao |
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| Abstract: | Strontium initial ratio for V-Ti-magnetite-bearing basic-ultrabasic layered intrusives is established as0.7047+/-0.0003. The same ratio for small intrusives bare of V-Ti-Fe mineralization is 0.7057+ /-0.0002,and for the widely distributed flood extrusives in Southwest China known as Mt. Emei basalts is 0.7055+/-0.0004. It is inferred that the ore-bearing basic magma had separated from the continental mantlemuch earlier than the flood extrusives and the non-ore small intrusives. |
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| Keywords: | strontium initial ratio layered intrusives basalt Panxi Rift Zone Mt. Emei basalt |
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