陆相沉积的天文地层研究方法简介——以井下地层为例INTRODUCTION TO THE METHOD FOR THE ASTROSTRATIGRAPHIC STUDY OF TERRESTRIAL SEDIMENTS:TAKING UNDERGROUND STRATIGRAPHY FOR AN EXAMPLE
徐道一,张海峰,韩延本,尹志强,李保利,姚益民
摘要(Abstract)：
通过对我国大陆三十余口井的测井资料研究成果,归纳出对陆相地层进行天文地层研究的方法。介绍了所用的新的天文周期理论值、测井资料的选取及预处理方法,重点说明谱分析的数据点数的选定、不同参数(自然伽玛、自然电位和岩屑)的测井资料谱分析结果的对比,以实例说明如何选定主要优势旋回和AR值,以及FIR数字滤波器的基本性质和数字滤波结果,小波分析的特点和通过小波图进行调频的方法,并介绍了地层单位的延续时间计算和年龄确定方法。
关键词(KeyWords)： 陆相沉积;天文地层;频谱分析;数字滤波;小波分析
基金项目(Foundation): 中石化“东营凹陷成烃成藏定量研究”课题;; 国家自然科学主任基金项目(No40542007)资助
作者(Author): 徐道一,张海峰,韩延本,尹志强,李保利,姚益民
DOI: 10.19839/j.cnki.dcxzz.2007.s2.003
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