地球物理与地球化学方法在陆相层序识别中的应用——以新生代敦化盆地为例  

The Application of Geophysical and Geochemical Methods to Continental Sequence Recognition ——by the example of the Cenozoic Dunhua basin

作　　者：韩娇艳[1] 胡菲[2] HAN Jiao-yan;HU Fei(-Research Institute of Exploration and Exploitation,Northeast Oil and Gas Field,SINOPEC Company Limited,Changchun 130062;-Institute of Earth Science,Jilin University,Changchun 130061)

机构地区：[1]中石化东北油气分公司勘探开发研究院,长春130062 [2]吉林大学地球科学学院,长春130061

出　　处：《四川地质学报》2018年第3期513-517,522,共6页Acta Geologica Sichuan

摘　　要：层序地层单元的识别是层序地层学研究的基础,通常对于不同级别层序地层单元的识别要依据不同的资料和手段,不同的研究方法在划分不同级别的层序上各具优势。当传统的层序识别手段(岩心、测井、地震)遇到困难时,就需要运用地球物理特殊处理和地球化学的方法来辅助层序的识别。在敦化盆地地震资料品质差、测井和岩心资料相对缺乏的条件下,本文在地球物理方法上应用小波变换、"门槛值特殊处理"的瞬时相位剖面来辅助三级层序和体系域的识别,在地球化学方法上应用有机碳(TOC)、微量元素、稀土元素的方法来辅助三级层序、体系域和准层序的识别,从而弥补了传统的单一方法识别层序产生的不足。The identification of sequence stratigraphic units is the basis of sequence stratigraphy research. Generally, the identification of different sequence stratigraphic units should be based on different data and means, and different research methods have their own advantages in the classification of different levels of sequence. When the traditional methods of sequence identification （core, logging, seismic ） encounter difficulties, it is necessary to use special geophysical treatment and geochemical methods for assisting the identification of sequences. In the Dunhua basin, due to poor quality of seismic data and scarce well logging and core data, geophysical methods such as wavelet transform and the ＂threshold special processing＂ instantaneous phase profile are used to assist the identification of the three grade sequence and system tracts, geochemical methods such as organic carbon （TOC） , trace elements and rare earth elements are used to assist the identification of the three grade sequence, system tracts and subsequence, which makes up the shortage of single method of traditional sequence recognition.

关 键 词：层序识别 敦化盆地 地球物理 地球化学 

分 类 号：P631[天文地球—地质矿产勘探] P618.13[天文地球—地质学]