| 利用采样定理与沉积速率确定旋回分析最佳采样间隔 |
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| 引用本文： | 赵庆乐,吴怀春,李海燕,张世红.利用采样定理与沉积速率确定旋回分析最佳采样间隔[J].地球科学,2011,36(1):12-16. |
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| 作者姓名： | 赵庆乐 吴怀春 李海燕 张世红 |
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| 作者单位： | 中国地质大学地质过程与矿产资源国家重点实验室,北京,100083 |
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| 摘 要： | 旋回地层学方法近年来被成功应用于年代确定及重大地质事件天文影响因素的判别.采样是旋回分析中最重要的一步,目前大多使用地球物理、地球化学替代性指标.采样频率过高.会大大增加测量和计算的工作量,同时也会增加随机干扰或其他非气候因素的干扰;采样频率过低,可能识别不出其中所包含的米兰柯维奇旋回成分.为确定一个最佳的采样间隔,通...
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| 关 键 词： | 米兰柯维奇理论 旋回地层学 沉积学 沉积速率 采样间隔 |
Determination of the Optimal Sampling Interval for Cyclostratigraphic Analysis by Using Sampling Theorem and Accumulation Rates |
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| ZHAO Qing-le,WU Huai-chun,LI Hai-yan,ZHANG Shi-hong State Key Laboratory of Geological Processes , Mineral Resources,China University of Geosciences,Beijing ,China.Determination of the Optimal Sampling Interval for Cyclostratigraphic Analysis by Using Sampling Theorem and Accumulation Rates[J].Earth Science-Journal of China University of Geosciences,2011,36(1):12-16. |
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| Authors: | ZHAO Qing-le WU Huai-chun LI Hai-yan ZHANG Shi-hong State Key Laboratory of Geological Processes Mineral Resources China University of Geosciences Beijing China |
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| Institution: | ZHAO Qing-le,WU Huai-chun,LI Hai-yan,ZHANG Shi-hong State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Beijing 100083,China |
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| Abstract: | In recent years,cyclostratigraphy has been successfully applied to dating strata and recongnizing the possible astronomical forcing on major geological events. Sampling is one of the most important routines in cyclostratigraphic analysis to get the suitable geophysical or geochemical paleoclimate proxies. However,the workload will be significantly increased and random noises or other non-climatic noises will be introduced if the sampling frequency is too high; on the contrary,a lower sampling frequency may ... |
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| Keywords: | Milankovitch theory cyclostratigraphy sedimentology accumulation rate sampling interval |
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