Variance - Correlation analysis in the exploration of hydrothermal (fluidogenous) deposits using surface gamma-ray spectrometry

Igor S. Sobolev, Alexander N. Orekhov, Tatiana Bratec, Leonid P. Rikhvanov, Nadezhda P. Soboleva

Division for Geology

Research output: Contribution to journal › Article

Abstract

This paper describes a possibility of using variance-correlation analysis for the detection of hydrothermal alterations by conducting a surface gamma-ray spectrometry survey. Gamma-ray spectrometry data processing includes a low-pass filtration, identification of potassium, uranium and thorium residual components, as well as an analysis of their variance and correlation. The high variance of radioactive elements and the features of their correlation are dependent on the mineral structure of hydrothermally altered rock that forms the secondary dispersion halos. The variance intensity, as well as the strength and the type of correlational anomalies, depends on the fluidogenic systems scale.

Original language	English
Pages (from-to)	597-604
Number of pages	8
Journal	Journal of Applied Geophysics
Volume	159
DOIs	https://doi.org/10.1016/j.jappgeo.2018.10.007
Publication status	Published - 1 Dec 2018

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Keywords

Hydrothermal alteration
Radioactive elements
Rank correlation
Surface gamma-ray spectrometric survey
Variance

ASJC Scopus subject areas

Geophysics

Cite this

Sobolev, I. S., Orekhov, A. N., Bratec, T., Rikhvanov, L. P., & Soboleva, N. P. (2018). Variance - Correlation analysis in the exploration of hydrothermal (fluidogenous) deposits using surface gamma-ray spectrometry. Journal of Applied Geophysics, 159, 597-604. https://doi.org/10.1016/j.jappgeo.2018.10.007

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AU - Orekhov, Alexander N.

AU - Bratec, Tatiana

AU - Rikhvanov, Leonid P.

AU - Soboleva, Nadezhda P.

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KW - Rank correlation

KW - Surface gamma-ray spectrometric survey

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Access to Document

10.1016/j.jappgeo.2018.10.007