| 乌鲁木齐祁家沟剖面中上石炭统风暴岩沉积特征 |
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| 引用本文： | 翟晓先.乌鲁木齐祁家沟剖面中上石炭统风暴岩沉积特征[J].成都理工大学学报(自然科学版),1987(1). |
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| 作者姓名： | 翟晓先 |
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| 作者单位： | 西北石油地质局地质大队 |
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| 摘 要： | 乌鲁木齐祁家沟剖面为北方地槽区中上石炭统的标准剖面。中石炭统祁家沟组和上石炭统奥尔吐组底部为一套风暴流沉积,主要标志有类似Bouma序列的沉积层序、壶模(pot cast)、“口袋状构造”、风暴介壳层、“亚里士多菲库”构造(Aristophycus)、成岩晕圈、丘状层理、液化泄水构造、冲刷-充填构造、冲刷面叠瓦状滞留砾石、定向排列的滞留生物以及撕裂状内碎屑。岩层不稳定,横向变化大。生物均为原地埋藏或经短距离搬运改造的正常浅海生物。
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| 关 键 词： | 新疆 乌鲁木齐 沉积相 层理 浅海生物相 风成沉积作用 风暴岩 石炭系 沉积构造 地层剖面 |
SEDIMENTARY FEATURES OF CARBONIFEROUS TEMPESTITES, QIJIAGOU SECTION, URUMQI |
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| Zhai Xiaoxian.SEDIMENTARY FEATURES OF CARBONIFEROUS TEMPESTITES, QIJIAGOU SECTION, URUMQI[J].Journal of Chengdu University of Technology: Sci & Technol Ed,1987(1). |
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| Authors: | Zhai Xiaoxian |
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| Institution: | Geological Brigade of the North-western Bureau of Petroleum Geology |
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| Abstract: | The Qijiagou section in Urumqi is one of the standard sections for the Middle and Upper Carboniferous in the North China geosynclinal area. The Middle Carboniferous Qijiagou Formation and the basal part of the Upper Carboniferous Aoertu Formation consist of a suite of tempestites. These are marked by sequences with Bouma's, pot cast, bag-like structures, storm-shell layers, Aristophycus, diagenetic halos, hummocky bedding, liquified and draining structures, scoured and filled structures, imbricated lag-gravels on scoured surfaces, oriented lagged fossils and teared intraclasts. The strata vary laterally. The fossils are normal neritic, either buried in situ or reworked through short-distance transportation. |
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| Keywords: | Xinjiang(Sinkiang) Wulumuqi(Urumchi) sedimentary facies bedding sublittoral biofacies eolian sedimentation procellarum rock Carboniferous System sedimentary structure stratigraphic sections |
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