| 庐山地区新元古代海相火山活动及岩石特征 |
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| 引用本文： | 黄传冠,钟春根.庐山地区新元古代海相火山活动及岩石特征[J].江西地质,2000,14(2):100-105. |
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| 作者姓名： | 黄传冠 钟春根 |
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| 作者单位： | 江西省地质调查院,江西南昌330201 |
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| 摘 要： | 庐山南麓发育一套变细碧－石英角斑岩系火山岩，岩性组合从早到晚反映了由基性到酸性的岩浆演化规律。火山活动具有由喷发相（喷溢亚相）→喷发－沉积相的特点，构成了具有韵律性的火山喷发特征。经同位素年代研究属晋宁期火山喷发产物，时代归属为新元古代早期。
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| 关 键 词： | 新元古代 火山活动 岩石特征 江西 海相 |
NEOPROTEROZOIC MARINE VOLCANIC ACTIVITY AND PETROGRAPHIC FEATURES IN THE LUSHAN AREA |
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| HUANG Chuan-guan,ZHONG Chun-gen.NEOPROTEROZOIC MARINE VOLCANIC ACTIVITY AND PETROGRAPHIC FEATURES IN THE LUSHAN AREA[J].Jiangxi Geology,2000,14(2):100-105. |
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| Authors: | HUANG Chuan-guan ZHONG Chun-gen |
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| Abstract: | A suite of metaspilite-quartz keratophyre is developed on the southern foot of Mt. Lushan.In lithologies,this rock suite changes from basic to acidic with time,which is in conformity with the normal rule of magmatic evolution. Volcanic activity is characterized by effusion-eruption-sedi-mentation,forming multiple rhythmic volcanic rock suite.Isotopic geochronological study has revealed that this rock suite is a product of Jiningean volcanic eruption,and is Early Neoproterozoic in age. |
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| Keywords: | Neoproterozoic volcanic activity petrographic feature Lushan area Jiangxi |
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