辽西地质走廊带,岩石物性,岩石光谱反射率,相关性 ," /> 辽西地质走廊带,岩石物性,岩石光谱反射率,相关性 ,"/> <p class="MsoNormal"> 辽西地质走廊带岩石物性在岩石成因研究中的应用

吉林大学学报(地球科学版) ›› 2023, Vol. 53 ›› Issue (5): 1623-1634.doi: 10.13278/j.cnki.jjuese.20220196

• 地球探测与信息技术 • 上一篇    下一篇

辽西地质走廊带岩石物性在岩石成因研究中的应用

李阳1, 2,韩立国1,孟兆海3,徐学纯2,李凤婷3,董思源1,周帅1   

  1. 1.吉林大学地球探测科学与技术学院,长春130026

    2.吉林大学地球科学学院,长春130061

    3.天津航海仪器研究所,天津300131

  • 出版日期:2023-09-26 发布日期:2023-11-04
  • 基金资助:

    国家重点研发计划项目(2020YFE0201300);吉林省科技发展计划资助项目(20210508033RQ);中央高校基本科研业务费专项资金(415010300086);国家自然科学基金青年基金项目(42204146)

Application of Petrophysical Properties in the Geological Corridor of Western Liaoning Province to Petrogenesis

Li Yang1,2, Han Liguo1, Meng Zhaohai3, Xu Xuechun2, Li Fengting3, Dong Siyuan1, Zhou Shuai1   

  1. 1. College of GeoExploration Science and Technology, Jilin University, Changchun 130026, China

    2. College of Earth Sciences,Jilin University, Changchun 130061, China

    3. Tianjin Institute of Marine Instruments, Tianjin 300131, China

  • Online:2023-09-26 Published:2023-11-04
  • Supported by:
    Supported by the National Key R&D Program of China (2020YFE0201300), the Natural Science Foundation of Jilin Province (20210508033RQ), the Fundamental Research Funds for the Central Universities (415010300086) and the Youth Fund of  the National Natural Science  Foundation of China (42204146)

摘要:

本文对辽西地质走廊带不同地质单元的岩石标本进行物性参数测量,建立沉积岩和火成岩岩石密度、弹性波速度、磁化率、电阻率与光谱数据之间的定性和半定量关系,研究岩石物性与岩石特征之间的相关性,以此来研究岩石的成岩环境。根据不同岩石类型相关系数曲线的统计结果,总结了岩石光谱反射率与岩石密度、弹性波速度、磁化率、电阻率相关系数强弱特征和岩石类型之间的关系,从相关性强弱变化的特征分析出岩石成岩环境的差异会导致不同岩石具有不同的物性特征,其中,沉积岩的物理沉积环境导致其岩石光谱反射率与密度和弹性波速度具有较强的相关性,火成岩稳定的成岩环境导致其岩石光谱反射率与磁化率具有较强的相关性,沉积岩和火成岩的光谱反射率与岩石密度和弹性波速度均为正相关关系。


关键词: 辽西地质走廊带')">

辽西地质走廊带, 岩石物性, 岩石光谱反射率, 相关性

Abstract:

This study focuses on measuring the physical parameters of rock samples sourced from diverse geological units within the geological corridor of western Liaoning Province. For igneous and sedimentary rocks, we establish both qualitative and semi-quantitative relationships between density, elastic wave velocity, magnetic susceptibility, resistivity and spectral data, and study the correlation between petrophysical properties and rock characteristics, so as to study the diagenetic environment of rocks. Through statistical analysis of correlation coefficient curves specific to different rock types, we present a comprehensive summary of the interplay between rock types and strength of correlation coefficient between spectral reflectance and the intensity of correlations with density, elastic wave velocity, magnetic susceptibility, and resistivity. According to the characteristics of strength of correlation, it is analyzed that the difference of diagenetic environment leads to different physical properties of different rocks. The physical sedimentary environment of sedimentary rocks fosters a robust correlation between its spectral reflectance and both density and elastic wave velocity. The stable diagenetic setting of igneous rock yields a strong connection between its spectral reflectance and magnetic susceptibility. The spectral reflectance of both sedimentary and igneous rocks exhibits a positive correlation with density and elastic wave velocity.

Key words: geological corridor of western Liaoning Province, petrophysical properties, spectral reflectance of rock, correlation

中图分类号: 

  • P313.1
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