Determination of rock types by spectral scanning

Patent metadata

Field	Value
Publication number	US-2022136963-A1
Application number	US-202217576870-A
Country	US
Kind code	A1
Filing date	Jan 14, 2022
Priority date	Feb 5, 2010
Publication date	May 5, 2022
Grant date	—

Abstract

Described herein is a method and system for classifying rock types in a rock body. The method comprises the steps of obtaining spectral data from a spectral measurement (202) of a surface region of the rock body and then determining a first spectral ratio between two wavelength bands of the spectral data. From the first spectral ratio it can be assessed (204) whether the measurement is a high-angle measurement, and if the measurement is not a high-angle measurement then a further spectral ratio between two further wavelength bands of the spectral data is determined (208). The further spectral ratio is then compared (210) with a corresponding diagnostic criterion to assess whether the surface region comprises a first rock type associated with the further spectral ratio and diagnostic criterion.

First claim

1 . A method of identifying rock types in a rock body, comprising:
scanning a surface of the rock body with a spectral sensor to obtain spectral data from the rock body surface, said spectral data comprising multiple spectra obtained from successively scanned regions of the rock body surface; determining for different spectra a spectral parameter indicative of spectra derived from high angle reflectance; and: using data from the spectra so determined not to be derived from high angle reflectance to determine rock types present at said regions of the rock body surface.

2 .- 20 . (canceled)

Assignees

• Tech Resources Pty Ltd

Inventors

• Silversides Katherine
• Murphy Richard
• Wyman Derek

Classifications

• G01N21/3563

  for analysing solids; Preparation of samples therefor · CPC title

• G01N21/31 Primary

  Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry {(G01N21/72 takes precedence)} · CPC title