| 低硅埃达克岩和高硅埃达克岩问题 |
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| 引用本文： | 张旗.低硅埃达克岩和高硅埃达克岩问题[J].岩石矿物学杂志,2012,31(6):897-900. |
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| 作者姓名： | 张旗 |
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| 作者单位： | 中国科学院地质与地球物理研究所,北京,100029 |
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| 摘 要： | 低硅埃达克岩(low-SiO2adakites,LSA,SiO2<60%)和高硅埃达克岩(high-SiO2adakites,HSA,SiO2>60%)的术语是Martin等(2005)提出来的。本文不赞同上述分类,因为,他们的低硅埃达克岩是赞岐岩而不是埃达克岩。赞岐岩是幔源的,埃达克岩是壳源的,虽然埃达克岩可以与地幔混合形成高镁的埃达克岩,但仍然是壳源的。不应当把壳源的岩浆和幔源的岩浆混淆起来。
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| 关 键 词： | 低硅埃达克岩 高硅埃达克岩 赞岐岩 幔源岩浆 壳源岩浆 |
| 收稿时间： | 2012/7/16 0:00:00 |
| 修稿时间： | 2012/9/4 0:00:00 |
A discussion on the low-SiO2 adakite and high-SiO2 adakite |
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| ZHANG Qi.A discussion on the low-SiO2 adakite and high-SiO2 adakite[J].Acta Petrologica Et Mineralogica,2012,31(6):897-900. |
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| Authors: | ZHANG Qi |
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| Institution: | ZHANG Qi(Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China) |
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| Abstract: | The terms of low-SiO2 adakite (LSA, SiO2 <60%) and high-SiO2 adakite (HSA, SiO2> 60%) were put forward by Martin et al. (2005). This paper does not agree with this classification, because the low-SiO2 adakite is sanukite rather than adakite. Sanukite is a mantle source rock, whereas adakite is a crust-derived rock. Although adakite can be mixed with the mantle to form high-Mg adakite, it is still of the crust source. Crust- and mantle-derived magmas are different types of magma, so it is not proper to confuse them. |
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| Keywords: | low-SiO2 adakite high-SiO2 adakite sanukite mantle-derived magma crust-derived magma |
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