Mapping alteration using imagery from the Tiangong-1 hyperspectral spaceborne system: Example for the Jintanzi gold province, China

Liu, Lei; Feng, Jiang; Rivard, Benoît; Xu, Xinliang; Zhou, Jun; Han, Ling; Yang, Junlu; Ren, Ge

doi:10.1016/j.jag.2017.03.013

Cited by 20 publications

(7 citation statements)

References 26 publications

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“…Another classic paper on the use of hyperspectral data for mineral exploration is presented by Liu et al (Liu et al, 2017): 'Mapping alteration using imagery from the Tiangong-1 hyperspectral spaceborne system: example for the Jintanzi gold province, China'. These authors for the first-time show results from the Chinese Tiangong-1 Hyperspectral Imager, which is a new spaceborne hyperspectral remote sensing system launched on September 29th 2011.…”

Section: Synergy Of Tir and Swir Geologic Remote Sensingmentioning

confidence: 99%

Geological remote sensing

Bishop

Rivard

Filho

et al. 2018

International Journal of Applied Earth Observation and Geoinfor

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Section: Synergy Of Tir and Swir Geologic Remote Sensingmentioning

confidence: 99%

Geological remote sensing

Bishop

Rivard

Filho

et al. 2018

International Journal of Applied Earth Observation and Geoinfor

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“…Hydrothermal alteration minerals, key indicators of hydrothermal deposit mineralization, are effective prospecting indicators. Since remote sensing technology has the advantages of being speedy and cost-effective, multi-source remote sensing satellite data, including multispectral and hyperspectral data, are applied to various hydrothermal deposits for prospect exploration around the world [1][2][3][4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…With the development of hyperspectral remote sensing technology, Earth observations and the ability to distinguish ground objects were greatly enhanced, and there was an increase in research in the field of geological prospecting. The HyMap [30], AVIRIS [31], CASI/SASI [32] airborne hyperspectral data, and the Hyperion TG-1 [13] aerospace hyperspectral data are widely used. However, due to the high cost and long data acquisition cycle for HyMap, AVIRIS, and CASI/SASI, as well as the narrow data width and limited data acquisition ability of Hyperion and TG-1, the popularization and application of hyperspectral data are severely restricted [33].…”

Section: Introductionmentioning

confidence: 99%

ASTER and GF-5 Satellite Data for Mapping Hydrothermal Alteration Minerals in the Longtoushan Pb-Zn Deposit, SW China

et al. 2022

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Hydrothermal alteration minerals are an effective prospecting indicator. Advanced spaceborne thermal emission and reflection radiometer (ASTER) satellite data are some of the most commonly adopted multispectral data for the mapping of hydrothermal alteration minerals. Compared to multispectral data, hyperspectral data have stronger ground object recognition ability. Chinese Gaofen-5 (GF-5) is the first hyperspectral satellite independently developed by China that has the advantages of both wide-width and high-spectral-resolution technology. However, the mapping ability of GF5 data for hydrothermal alteration minerals requires further study. In this study, ASTER and GF-5 satellite data were implemented to map hydrothermal alteration minerals in the Longtoushan Pb-Zn deposit, SW China. Selective principal component analysis (SPCA) technology was employed to map iron oxide/hydroxides, argillic, quartz, and carbonate minerals at the pixel level using ASTER data, and the mixture tuned matched filtering (MTMF) method was implemented for the extracted hematite, kaolinite, calcite, and dolomite at the sub-pixel level using GF-5 data. When mapping the hydrothermal alteration minerals, the distribution features of the hydrothermal alteration minerals from the Longtoushan Pb-Zn deposit were systematically revealed. A comprehensive field investigation and petrographic study were conducted to verify the extraction accuracy of the hydrothermal alteration minerals. The results showed that the overall accuracies for the ASTER and GF-5 data were 82.6 and 92.9 and that the kappa coefficients were 0.78 and 0.90, respectively. This indicates that the GF-5 data are able to map hydrothermal alteration minerals well and that they can be promoted as a hyperspectral data source for mapping systematic hydrothermal alteration minerals in the future.

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“…2 On the other hand, hyperspectral (HS) images provide more detailed spectral features and are useful for mineral discrimination. [3][4][5][6] However, as a trade-off for increasing the number of wavelengths, HS sensors have a narrower swath width, such as 7.6 km for Hyperion on EO-1, 7 30 km for Environmental Mapping and Analysis Program (EnMAP) 8 and PRecursore IperSpettrale della Missione Applicativa (PRISMA), 9 and 20 km for Hyperspectral Imager Suite (HISUI) 10 on the International Space Station. In addition, since there are few HS sensors that have been operated so far, archived HS images are limited compared to MS images, and there are many unobserved regions in the world.…”

Section: Introductionmentioning

confidence: 99%

Improvement of a mineral discrimination method using multispectral image and surrounding hyperspectral image

Nakayama

Tonooka

2021

J. Appl. Rem. Sens.

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Hyperspectral (HS) images are highly accurate for mineral discrimination, but available areas are limited. For this reason, several methods have been proposed to extend the mineral map of the overlap region between HS and multispectral (MS) images to the surrounding area with no HS image. One such method, proposed by Hirai and Tonooka, discriminates minerals using MS images by obtaining the endmembers of MS images from the positions of the endmember pixels of HS images in the overlap region. While this method (referred to as HT method) has the advantage of being less susceptible to the spectral distortions of HS and MS images, it also has the problem of reduced accuracy due to misalignment between HS and MS images. We proposed an improved HT method that reduces the effects of the above problems by incorporating a process that improves the robustness against misalignment by searching for the best MS endmember pixel around the position of the HS endmember pixel and a process that determines more optimum threshold value of each mineral in the spectral angle mapper method used in the HT method. As a result of evaluation using an AVIRIS image as an HS image and a World View-3 image as an MS image at Cuprite, Nevada, the improved method improved the overall accuracy by 2.6% compared with the original HT method, and in the case that the HS and the MS images were misaligned, the overall accuracy of the original method decreased by 7.0%, while the improved method decreased by only 1.5%. These results indicate that the improved method can perform as expected.

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Mapping alteration using imagery from the Tiangong-1 hyperspectral spaceborne system: Example for the Jintanzi gold province, China

Cited by 20 publications

References 26 publications

Geological remote sensing

Geological remote sensing

ASTER and GF-5 Satellite Data for Mapping Hydrothermal Alteration Minerals in the Longtoushan Pb-Zn Deposit, SW China

Improvement of a mineral discrimination method using multispectral image and surrounding hyperspectral image

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