| 华北地台本溪组,太原组火山事件沉积特征及时空分布规律 |
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| 引用本文： | 钟蓉,孙善平,付泽明.华北地台本溪组,太原组火山事件沉积特征及时空分布规律[J].地质力学学报,1996,2(1):83-91. |
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| 作者姓名： | 钟蓉 孙善平 付泽明 |
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| 作者单位： | 中国地质科学院地质力学研究所,中国地质大学, 北京,中国地质大学, 北京 |
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| 基金项目： | 国家自然科学基金项目(4880102)部分成果。 |
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| 摘 要： | 作者对华北地台24个煤田及煤矿区进行了详细的研究,在本溪组及太原组中共发现6期12次火山事件层。这些火山事件沉积遍及全区,主要为凝灰岩、沉凝灰岩及凝灰质沉积岩,它们在时空分布上有一定规律。火山碎屑可能来自华北地台以北及以南若干不同的火山源,而岩浆可能来自下地壳。
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| 关 键 词： | 华北地强 本溪组 火山事件 沉积 火山源 |
THE CHARACTERISTICS OF VOLCANIC EVENT DEPOSITS AND THEIR TEMPORAL-SPATIAL DISTRIBUTION OF BENXI AND TAIYUAN FORMATIONS IN NORTH CHINA PLATFORM(NCP) |
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| Zhong Rong,Sun Shanping and Fu Zeming.THE CHARACTERISTICS OF VOLCANIC EVENT DEPOSITS AND THEIR TEMPORAL-SPATIAL DISTRIBUTION OF BENXI AND TAIYUAN FORMATIONS IN NORTH CHINA PLATFORM(NCP)[J].Journal of Geomechanics,1996,2(1):83-91. |
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| Authors: | Zhong Rong Sun Shanping and Fu Zeming |
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| Institution: | Institute of Geomechanies, CAGS,China University of Geoseiences, Beijing and China University of Geoseiences, Beijing |
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| Abstract: | From a study of a good number of coal fields and coal mines of the North China Platform, 12 volcanic event layers which can be grouped into 6 stages have been discovered by the authors in Benxi and Taiyuan Formations.These volcanic event deposits are wide spread in the region and consist mainly of turfs, tuffites and tuffaceous sedimentary rocks. There is some regularity in their temporal-spatial distribution.The volcanic fragments were probably from different volcanic sources to the north and south of North China Platform and the magma of volcanic matter was, maybe, from the lower crust. |
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| Keywords: | North China Platform Benxi Formation Taiyuan Formation Volcanic event deposit Volcanic source |
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