Method for identifying spodumene-containing pegmatite through thermal infrared spectrum and application of thermal infrared spectrum

Abstract

The invention discloses a method for identifying spodumene-containing pegmatite through a thermal infrared spectrum and application of the thermal infrared spectrum and belongs to the technical fieldof thermal infrared spectrum data interpretation and application. The method comprises the step of performing thermal infrared band spectrum data acquisition on a mineral sample by adopting a thermalinfrared spectrometer in the process of identifying spodumene-containing pegmatite; and the thermal infrared band is 6000-14500nm. According to the method disclosed by the invention, the difference ofspectral characteristics of spodumene-containing pegmatite, spodumene-free pegmatite and surrounding rock in a thermal infrared band is distinguished, and the content of the lithium element is estimated according to the absorption depth of a specific absorption peak of the spodumene-containing pegmatite, so that pegmatite type spodumene ore bodies can be rapidly identified and grade estimation iscarried out.

Description

technical field [0001] The invention relates to thermal infrared spectroscopy, in particular to a method for identifying spodumene-containing pegmatites by using thermal infrared spectroscopy, and belongs to the technical field of thermal infrared spectroscopy data interpretation and application. Background technique [0002] As a new and very important strategic mineral resource, lithium plays a huge role in lithium batteries, new energy vehicles, controllable nuclear fusion and other fields. At present, the new situation that my country's lithium ore resources are facing is very severe. The demand for lithium ore is growing rapidly, and the dependence on foreign resources such as lithium ore exceeds 70%. [0003] So far, lithium deposits found in nature mainly include brine type, pegmatite type and sedimentary rock type. Global lithium ore resources are mainly concentrated in salt lake brine, but because brine-type lithium ore is mainly limited to a few basins, the family...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is aimed at the above-mentioned existing problems, proposes a kind of method of thermal infrared spectrum identification spodumene-containing pegmatite, is used to solve the problem that spodumene-containing pegmatite, spodumene-free pegmatite and surrounding rock are difficult to distinguish and utilize spodumene Thermal Infrared Spectral Features Establishment of Lithium Inversion Model and Other Technical Issues

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