| 辽吉地区早元古代含硼建造中电英岩的特征及成因 |
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| 引用本文： | 邹日,冯本智.辽吉地区早元古代含硼建造中电英岩的特征及成因[J].吉林大学学报(地球科学版),1993(4). |
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| 作者姓名： | 邹日 冯本智 |
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| 作者单位： | 长春地质学院地质系
(邹日)，长春地质学院地质系(冯本智) |
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| 摘 要： | 辽吉地区的含硼建造位于早元古代辽河群下部,其中有具工业意义的硼矿床。在含矿层位中,广泛产出电英岩类。该类岩石呈层状,区域上延伸稳定,常夹于(或互层、互成条纹)电气微斜变粒和黑云微斜变粒岩中。从其完好的沉积组构和特殊的化学成分来看,它与国外典型层状Pb—Zn矿床中的海底热水沉积富硼硅质岩相似,是与海底酸性火山活动有关的热水沉积岩。
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| 关 键 词： | 早元古代 含硼建造 热水沉积 电英岩 |
GEOLOGY AND ORIGIN OF THE TOURMALITES IN THE EARLY PROTEROZOIC BORON-BEARING SEQUENCE IN LIAONING-JILIN |
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| Zou Ri Feng Benzhi.GEOLOGY AND ORIGIN OF THE TOURMALITES IN THE EARLY PROTEROZOIC BORON-BEARING SEQUENCE IN LIAONING-JILIN[J].Journal of Jilin Unviersity:Earth Science Edition,1993(4). |
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| Authors: | Zou Ri Feng Benzhi |
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| Institution: | Dep. of Geology |
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| Abstract: | Hosting the industrial boron ore bodies, the boronbearing sequence is located in the lower - middle portion of the early Proterozoic Liaohe Group. The tourmalites are exposed extensively in the boron - bearing horizons. With markable variation in thickness, the tourmalites are stratiform and can be traced continuously with intercalations of biotite - microcline leptynites and tourmaline - microcline leptynites. Their perfect sedimentary fabrics and unusual chemistry indicate that they are exhalites associated with submarine acid volcanism, which are similar to the boron and silicon -rich exhalites in the typical stratiform Pb-Zn deposits in the world. |
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| Keywords: | the early Proterozoic boron-bearing sequence exhalites tourmalite |
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