东营凹陷沙四上亚段旋回地层学研究——以樊页1井为例

发布时间：2018-02-16 13:56

本文关键词： 东营凹陷沙四上亚段自然伽马测井曲线旋回地层学天文年代标尺　出处：《科学技术与工程》2017年01期 　论文类型：期刊论文

【摘要】：对东营凹陷博兴洼陷樊页1井始新世的沙四上纯上亚段和沙四上纯下亚段自然伽马测井曲线进行小波分析和频谱分析,发现樊页1井沙四上亚段记录了米兰科维奇旋回。通过对黄赤交角周期进行高斯带通滤波,建立了精度为0.038 ka的樊页1井沙四上亚段"浮动"天文年代标尺。樊页1井沙四上亚段共记录了80个黄赤交角周期,据此确定沙四上亚段沉积的持续时间约为3.04 Ma。依据天文年代标尺计算出沙四上纯上亚段的沉积速率为0.09~0.1 m/ka,沙四上纯下亚段的沉积速率为0.105~0.147 m/ka。同时,天文旋回与岩性变化之间存在较好的对应,说明天文周期是湖相细粒沉积岩的一个重要控制因素。
[Abstract]:The natural gamma-ray logging curves of well Fan Pei1 in Boxing sag of Dongying depression in Eocene were analyzed by wavelet analysis and spectrum analysis. It was found that the cycle of Milankovich was recorded in the upper submember of Sha4 in well Fan Pen 1. Gao Si band-pass filtering was carried out through the cycle of the yellow red angle. The "floating" astronomical age scale of the upper submember of Sha4 of well Fan Pian 1 with a precision of 0.038 ka has been established. A total of 80 yellowish angle periods have been recorded in the upper submember of Sha4 of well Fan Pin 1. Based on this, the deposition duration of the upper member is about 3.04 Ma.The sedimentation rate of the upper pure upper member is 0.09 ~ 0. 1 m / ka, and that of the upper and lower member is 0. 105 ~ 0. 147 m / kg 路ka. according to the astronomical age scale, the deposition rate of the upper and lower member of the upper and lower member is 0. 105 ~ 0. 147 m / KA, respectively. There is a good correspondence between astronomical cycle and lithologic change, which indicates that astronomical cycle is an important controlling factor of lacustrine fine grain sedimentary rocks.
【作者单位】：中国地质大学(北京);
【基金】：“十二五”国家科技重大专项(2011ZX05009-002)资助
【分类号】：P618.13;P539

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