| 大庆长垣姚家组高频层序地层与米兰科维奇旋回对应性 |
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| 引用本文： | 孙阳,樊太亮,傅良同,王海荣,胡晓兰.大庆长垣姚家组高频层序地层与米兰科维奇旋回对应性[J].现代地质,2011,25(6):1145-1151,1166. |
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| 作者姓名： | 孙阳 樊太亮 傅良同 王海荣 胡晓兰 |
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| 作者单位： | 中国地质大学能源学院,北京100083;中国地质大学海相储层演化与油气富集机理教育部重点实验室,北京100083 |
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| 摘 要： | 选取典型取心井对大庆长垣姚家组进行高频层序划分,共识别出98个超短期旋回,33个短期旋回,9个中期旋回和3个长期旋回。同时大庆长垣姚家组自然伽马曲线频谱分析结果表明,该地层中很好地保存了米兰科维奇旋回。其中,偏心率短周期引起的沉积旋回厚度为2.679～3.972 m,地轴倾角周期引起的沉积旋回厚度为1.379～2.131 m,岁差周期引起的沉积旋回厚度为0.601～0.901 m。高频层序与米兰科维奇旋回之间存在着较好的一致性,高频层序中期旋回、短期旋回和超短期旋回大致分别与米兰科维奇旋回的偏心率长周期、偏心率短周期以及岁差周期对应。地球轨道变化所引起的湖平面变化是高频层序形成的主控因素。
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| 关 键 词： | 大庆长垣 姚家组 高频层序 米兰科维奇旋回 湖平面变化 |
Correspondence Between High Frequency Sequences and Milankovitch Cycles of Yaojia Formation in Daqing Piacanticline |
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| SUN Yang,FAN Tai-liang,FU Liang-tong,WANG Hai-rong,HU Xiao-lan.Correspondence Between High Frequency Sequences and Milankovitch Cycles of Yaojia Formation in Daqing Piacanticline[J].Geoscience——Journal of Graduate School,China University of Geosciences,2011,25(6):1145-1151,1166. |
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| Authors: | SUN Yang FAN Tai-liang FU Liang-tong WANG Hai-rong HU Xiao-lan |
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| Institution: | SUN Yang1,2,FAN Tai-liang1,FU Liang-tong1,WANG Hai-rong1,HU Xiao-lan1,2(1.School of Energy Resources,China University of Geosciences,Beijing 100083,China,2.Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism,Ministry of Education,China) |
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| Abstract: | Ten typical well cores were observed to study high-frequency sequence classification of Daqing Yaojia Formation in this paper.As a result,98 ultra-short-term cycles,33 short-term cycles,9 mid-term cycles and 3 long-term cycles were identified.Meanwhile,this paper analyzed the Milankovitch Cycles,based on the natural gamma curves of those wells.The result showed that Milankovitch Cycles were well preserved in the strata of Yaojia Formation.The thickness of long-period cycles caused by eccentricity ranges fro... |
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| Keywords: | Daqing Placanticline Yaojia Formation high frequency sequence Milankovitch Cycle lake level change |
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