| 安徽巢县南陵湖组火山碎屑流沉积物的发现 |
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| 引用本文： | 李双应.安徽巢县南陵湖组火山碎屑流沉积物的发现[J].地层学杂志,1996,20(4):277-279. |
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| 作者姓名： | 李双应 |
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| 作者单位： | 合肥工业大学资源与环境科学系 |
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| 摘 要： | 在安徽巢县下三叠统南陵湖组上部，发育着一套火山碎屑沉积物，主要由英安质角砾岩、英安质晶屑、玻屑凝灰角砾岩和英安质玻屑、晶屑凝灰岩等组成。它厚１．８ｍ，层序清楚，分为２个布玛旋回。研究表明，它属于海底喷发、水流搬运的火山碎清流沉积（火山浊流沉积），并且可能是印支早期华北板块与扬子板块相互碰撞的一种反映。
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| 关 键 词： | 海底喷发，火山碎屑流，下三叠流，巢县，安徽 |
Discovery of pyroclastic flow deposits in the Lower Triassic Nanlinhu Formation in the Chaohu area, Anhui |
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| Li Shuang-ying.Discovery of pyroclastic flow deposits in the Lower Triassic Nanlinhu Formation in the Chaohu area, Anhui[J].Journal of Stratigraphy,1996,20(4):277-279. |
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| Authors: | Li Shuang-ying |
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| Abstract: | Developed in the upper part of the Nanlinhu Formation in the Chaohu area of Anhui is a series of pyroclastic flow deposits composed largely of dacite breccia, crystal and glass shard dacite tuff breccia and tuff, 1 .8m thick with distinct boundaries. The study indicates that the pyroclastic flow deposits (pyroturbidity deposits) formed by underwater eruption and transportation, include two cycles, and might be a reflecting the collision processes between North China and Yangtze Plates during the early Indosinian Epoch. |
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| Keywords: | underwater eruption pyroclastic flows Nanlinhu Formation Chaohu area Anhui |
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