| 鄂西神农架地区中元古界乱石沟组岩相古地理 |
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| 引用本文： | 胡宁.鄂西神农架地区中元古界乱石沟组岩相古地理[J].矿物岩石,1997,17(1):58-62. |
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| 作者姓名： | 胡宁 |
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| 作者单位： | 宜昌地质矿产研究所 |
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| 摘 要： | 神农架地区中元古界神农架群乱石沟组以发育碳酸盐潮汐沉积作用为显著特色，岩石类型以同生或准同生白云岩为主，沉积构造丰富，岩相标志清楚。本文通过十条实测剖面的综合研究共建立六种岩相类型在区域上，则划分为二个沉积相带及二个亚相带。由此，初步查明了神农架群乱石沟组沉积环境演化及岩相古地理分布特征
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| 关 键 词： | 岩相古地理 中元古代 陆表海 白云岩 神农架群 |
LITHOFACIES PALAEOGEOGRAPHY OF LUANSHIGOU FORMATION OF THE MTDDLE PROTEROZOIC IN SHENNONGJIA REGION OF WEST HUBEI,CHINA |
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| Hu,Ning.LITHOFACIES PALAEOGEOGRAPHY OF LUANSHIGOU FORMATION OF THE MTDDLE PROTEROZOIC IN SHENNONGJIA REGION OF WEST HUBEI,CHINA[J].Journal of Mineralogy and Petrology,1997,17(1):58-62. |
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| Authors: | Hu Ning |
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| Abstract: | It is remarkably characterized by developing tidal carbonate sedimentation for Luanshigou Formation of Shennongjia Group of the middle Proterozoic,in W Hubei,China.Rock type,are mainly syngenetic or parasyngenetic dolomites,in which sedimentary structures are abundant and lithofacies marks are obvious. Six facies types are illustrated in this paper according to the study of ten measured sections in studing region. Regionally, two sedimentary facies belts and two sedimentary subfacies belts are classified. Thus they have primarily ascertained the evolution of the sedimentary environment and distribution of lithofacies palaeogeography in the peroid. |
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| Keywords: | lithofacies palaeogeography the Middle Proterozoic epicontinental sea dolomite Shennongjia Group |
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