Infrared Spectroscopy, Portable XRF and Magnetic Susceptibility Analysis of Drill Core for Exploration of the Taihe Vanadium Titano-Magnetite Deposit in the Panxi Area, Sichuan Province

GUO Dong-xu; ZHANG Hong; GAO Qing-nan; ZHU You-feng; JI Guang-xuan

doi:10.15898/j.cnki.11-2131/td.202104030050

Rock and Mineral Analysis > 2022 > 41(1): 43-53. > DOI: 10.15898/j.cnki.11-2131/td.202104030050

GUO Dong-xu, ZHANG Hong, GAO Qing-nan, ZHU You-feng, JI Guang-xuan. Infrared Spectroscopy, Portable XRF and Magnetic Susceptibility Analysis of Drill Core for Exploration of the Taihe Vanadium Titano-Magnetite Deposit in the Panxi Area, Sichuan Province[J]. Rock and Mineral Analysis, 2022, 41(1): 43-53. DOI: 10.15898/j.cnki.11-2131/td.202104030050

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Infrared Spectroscopy, Portable XRF and Magnetic Susceptibility Analysis of Drill Core for Exploration of the Taihe Vanadium Titano-Magnetite Deposit in the Panxi Area, Sichuan Province

Core and Samples Centre of Land and Resources, Sanhe 065201, China

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Received Date: April 02, 2021
Revised Date: September 09, 2021
Accepted Date: September 20, 2021
Published Date: January 27, 2022

Abstract

HIGHLIGHTS
(1) The relative absorption depth of the characteristic absorption peak of pyroxene can be identified by Fourier transform infrared (FTIR) spectroscopy, so that the ore-bearing rock (i.e., magnetite-bearing pyroxenite) can be delineated quickly.

(2) The contents of Fe, Ti, and V can be linearly fitted by magnetic susceptibility value.

(3) The higher content of Fe, Ti, V and the increasing value of magnetic susceptibility are excellent geochemical indices for prospecting in the Taihe vanadium titano-magnetite deposit.

ABSTRACT

BACKGROUNDThe Panxi super large-scale Taihe vanadium-titanium magnetite deposit is located in the mafic-ultramafic layered intrusions. Research on the characteristics of infrared spectroscopy of the typical minerals of this deposit is relatively lacking, restricting exploration efficiency. The Panxi area would benefit from the use of infrared spectroscopy technology, which in recent years has attracted much attention because of its green, fast, non-destructive and accurate detection of minerals, and improvement of exploration efficiency.
OBJECTIVESTo analyze the characteristics of different minerals and to efficiently identify ore-bearing intrusions and mineralized regions in the Taihe vanadium titano-magnetite deposit in the Panxi area, Sichuan Province.
METHODSMinerals were identified using Handheld FTIR through thermal infrared (TIR). The contents of Fe, Ti, and V were analyzed by Vanta VMW portable XRF. The magnetic susceptibility was analyzed by KM-7 portable magnetic susceptibility tester. Based on the core catalog, the relationship between borehole lithology, mineral assemblage, element content, and magnetic susceptibility value was studied.
RESULTSTIR can be used to achieve rapid and non-destructive extraction of the characteristic absorption peaks of pyroxene, identify the distribution of magnetite-bearing pyroxenite, and quickly define ore-bearing rock masses. The contents of Fe, Ti, and V in the Taihe deposit can be linearly fitted by magnetic susceptibility values. Different kinds of rocks and ores have different contents of Fe, Ti, V and magnetic susceptibility value.
CONCLUSIONSTIR technology is useful for prospecting magnetite-bearing rocks or deposits in unknown areas. The higher contents of Fe, Ti, and V and magnetic susceptibility values can be used as indicative information for judging the mineralization of geological bodies.
- Taihe,
- vanadium titano-magnetite deposit,
- deposit exploration,
- infrared spectroscopy,
- magnetic susceptibility,
- X-ray fluorescence spectrometry

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References (32)

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Infrared Spectroscopy, Portable XRF and Magnetic Susceptibility Analysis of Drill Core for Exploration of the Taihe Vanadium Titano-Magnetite Deposit in the Panxi Area, Sichuan Province

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