Mineral identification and geological mapping using near-infrared spectroscopy analysis

Xiu, Liancun; Zheng, Zhizhong; Chen, Chunxia

doi:10.1109/pic.2017.8359526

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…Spectroscopy reveals molecular composition and structure through absorption spectra of vibrations at fundamental and overtone frequencies. Spectroscopy serves as a "fingerprint" for different substances 10 .…”

Section: Background and Summarymentioning

confidence: 99%

A near-infrared spectroscopy dataset of coal and coal-measure rock under diverse conditions

Lv,

Wang,

Yang

et al. 2024

Sci Data

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The identification technology for coal and coal-measure rock is required across multiple stages of coal exploration, mining, separation, and tailings management. However, the construction of identification models necessitates substantial data support. To this end, we have established a near-infrared spectral dataset for coal and coal-measure rock, which includes the reflectance spectra of 24 different types of coal and coal-measure rock. For each type of sample, 11 sub-samples of different granularities were created, and reflectance spectra were collected from sub-samples at five different detection azimuths, 18 different detection zeniths, and under eight different light source zenith conditions. The quality and usability of the dataset were verified using quantitative regression and classification machine learning algorithms. Primarily, this dataset is used to train artificial intelligence-based models for identifying coal and coal-measure rock. Still, it can also be utilized for regression studies using the industrial analysis results contained within the dataset.

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Section: Background and Summarymentioning

confidence: 99%

A near-infrared spectroscopy dataset of coal and coal-measure rock under diverse conditions

Lv,

Wang,

Yang

et al. 2024

Sci Data

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show abstract

“…in the layered silicate. Liancun et al [48] used a portable near infrared spectrometer to acquire characteristic spectra of altered minerals, and to establish the relationship between altered minerals and ore-forming. umene sample could show absorption features at 550, 1980, and 2320 nm by a NIR field spectrometer covering the 350-2500 nm range.…”

Section: Portable Vis-nir-swir Macro-spectroscopymentioning

confidence: 99%

Section: Portable Vis-nir-swir Macro-spectroscopymentioning

confidence: 99%

Indicator Minerals, Pathfinder Elements, and Portable Analytical Instruments in Mineral Exploration Studies

Balaram

Sawant

2022

Minerals

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Until recently, the classic approach to mineral exploration studies was to bring the field samples/drill cores collected during field studies to the laboratory, followed by laborious analysis procedures to generate the analytical data. This is very expensive, time-consuming, and difficult for exploring vast areas. However, rapid technological advances in field-portable analytical instruments, such as portable visible and near-infrared spectrophotometers, gamma-ray spectrometer, pXRF, pXRD, pLIBS, and µRaman spectrometer, have changed this scenario completely and increased their on-site applications in mineral exploration studies. LED fluorimeter is a potential portable tool in the hydrogeochemical prospecting studies of uranium. These instruments are currently providing direct, rapid, on-site, real-time, non-destructive, cost-effective identification, and determination of target elements, indicator minerals and pathfinder elements in rock, ore, soil, sediment, and water samples. These portable analytical instruments are currently helping to obtain accurate chemical and mineralogical information directly in the field with minimal or no sample preparation and providing decision-making support during fieldwork, as well as during drilling operations in several successful mineral exploration programs. In this article, the developments in these portable devices, and their contributions in the platinum group elements (PGE), rare earth elements (REE), gold, base metals, and lithium exploration studies both on land and on the ocean bed, have been summarized with examples.

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“…The chemical bonds present in the molecules absorb energy at specific wavelengths, and by measuring the luminous intensity that is reflected or passes through by a sample, the substances present in that compound can be determined. This technique can be applied in several processes, such as fruit quality analysis [1], identifying powder blends for application in the pharmaceutical and food processing industries [2], mineral analysis [3], and monitoring the quality of cow's milk during milking [4]. However, the larger the range of the analyzed spectrum, the higher the cost of the equipment capable of this analysis.…”

Section: Introductionmentioning

confidence: 99%

Development, Testing, and Validation of a Prototype for Qualification of Substances Based on Near-Infrared Spectroscopy

2019

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Some commercial equipment used to qualify substances in complex mixtures employs the principle of observation of the interaction of these substances with electromagnetic radiation. The chemical bonds present in the molecules of the substance absorb specific wavelengths, allowing for extracting important information about the physical properties of the analyzed element. However, such equipment is expensive, hampering access to it. With new optoelectronic components available in the market, it is possible to develop devices with the same operating principle of commercial equipment. With this in mind, several authors have suggested prototypes with a lower cost that are applicable to the ultraviolet and visible range, making their development less complex. This paper presents the development of an optoelectronic prototype for substance qualification using LEDs as the light source, with emission in the range of 1400-2250 nm (nearinfrared range). A GaInAsSb-based photodiode was used to detect the signal. The sampling mode used in the development of this work was diffuse reflection, which is applicable to non-homogeneous substances. Bandpass filters were employed to validate the methodology, where the results show that the prototype can perceive the variation of the intensity of the spectrum received by the sensor. INDEX TERMS Optoelectronic devices, instrumentation and measurement, infrared sensor, optical filters, light emitting diodes. The associate editor coordinating the review of this manuscript and approving it for publication was Jiang Wu.

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Mineral identification and geological mapping using near-infrared spectroscopy analysis

Cited by 5 publications

References 4 publications

A near-infrared spectroscopy dataset of coal and coal-measure rock under diverse conditions

A near-infrared spectroscopy dataset of coal and coal-measure rock under diverse conditions

Indicator Minerals, Pathfinder Elements, and Portable Analytical Instruments in Mineral Exploration Studies

Development, Testing, and Validation of a Prototype for Qualification of Substances Based on Near-Infrared Spectroscopy

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