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