Landsat 8 OLI Data for Identification of Hydrothermal Alteration Zone in Singhbhum Shear Zone using Successive Band Depth Difference Technique–A New Image Processing Approach

Banerjee, Krishnendu; Jain, Manish Kumar; Jeyaseelan, A. T.; Panda, Surajit

doi:10.18520/cs/v116/i10/1639-1647

Cited by 19 publications

(4 citation statements)

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“…Therefore, additional reference detectors collect the signal from the 20.7, 21.5, and 31.5 µm lines (483, 465, and 317 cm −1 ), where sulfides and ilmenite do not show spectral features. Such an approach will allow determining the influence of the Sun's geometry and topography on the obtained results -a similar approach is applied in the Landsat 8 (Safari et al, 2018;Banerjee et al, 2019;Sekandari et al, 2020), ASTER (Safari et al, 2018;Zoheir et al, 2019;Sekandari et al, 2020), Sentinel-2 (Zoheir et al, 2019;Sekandari et al, 2020;Soydan et al, 2021), or PRISMA (Loizzo et al, 2018;Bedini and Chen, 2022;Chirico et al, 2023) spectral bands on Earth. Apart from minor interferences with H 2 O and CO 2 molecules in the FIR band, which in any case is nearly irrelevant on the Moon, the main FIR advantage is the robust absorption features of oxides and sulfides (Figure 6A) compared to rock-forming silicates (Figure 6B) and other common minerals (Figure 6C; Figure 7).…”

Section: Spectral Ranges and Interferencesmentioning

confidence: 99%

Lunar ore geology and feasibility of ore mineral detection using a far-IR spectrometer

Ciążela¹,

Bakala²,

Kowaliński³

et al. 2023

Front. Earth Sci.

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Lunar sulfides and oxides are a significant source of noble and base metals and will be vital for future human colonies’ self-sustainability. Sulfide detection (pyrite and troilite) applies to many technological fields and use cases, for example, as a raw material source (available in situ on the Lunar surface) for new solar panel production methods. Ilmenite is the primary iron and titanium ore on the Moon and can provide helium-3 for nuclear fusion and oxygen for rocket fuel. The most important ore minerals have prominent absorption peaks in a narrow far-infrared (FIR) wavelength range of 20–40 μm, much stronger than the spectral features of other common minerals, including significant silicates, sulfates, and carbonates. Our simulations based on the linear mixing of pyrite with the silicates mentioned above indicated that areas containing at least 10%–20% pyrite could be detected from the orbit in the FIR range. MIRORES, Multiplanetary far-IR ORE Spectrometer, proposed here, would operate with a resolution down to <5 m, enabling the detection of areas covered by 2–3 m2 of pyrite (or ilmenite) on a surface of ∼17 m2 from an altitude of 50 km, creating possibilities for detecting large and local smaller orebodies along with their stockworks. The use of the Cassegrain optical system achieves this capability. MIRORES will measure radiation in eight narrow bands (0.3 µm in width) that can include up to five bands centered on the ore mineral absorption bands, for example, 24.3, 24.9, 27.6, 34.2, and 38.8 µm for pyrite, marcasite, chalcopyrite, ilmenite, and troilite, respectively. The instrument size is 32 x 32 x 42 cm, and the mass is <10 kg, which fits the standard microsatellite requirements.

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Section: Spectral Ranges and Interferencesmentioning

confidence: 99%

Lunar ore geology and feasibility of ore mineral detection using a far-IR spectrometer

Ciążela¹,

Bakala²,

Kowaliński³

et al. 2023

Front. Earth Sci.

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“…Multispectral images are generated from monochromatic bands by the application of a layer-stacking process [38][39][40][41]. CC allows the production of color images using the spectral signature of the targets [42]. They are commonly deployed to highlight different surface types in multispectral images or to make evident some crucial environmental phenomena, such as sandstorms, forest fires, and sea ice The CC simplifies it to describe and understand a multiband image by using different colors as indicators of the values of single-channel [43].…”

Section: Color Composition(cc)mentioning

confidence: 99%

“…The following supporting information can be downloaded at: https: //www.mdpi.com/article/10.3390/su142215349/s1, Figure S1 S1: Summary of selected satellite sensors; Table S2: Details of the most color composite used in geology; Table S3: Details band ratios usefulness in geological studies; Table S4: Accuracy assessment for SAM for SAM classification of ASTER image. Refs [23][24][25][26][39][40][41][42][43] are citied in supplementary materials.…”

Section: Supplementary Materialsmentioning

confidence: 99%

Remote Sensing Data for Geological Mapping in the Saka Region in Northeast Morocco: An Integrated Approach

et al. 2022

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Together with geological survey data, satellite imagery provides useful information for geological mapping. In this context, the aim of this study is to map geological units of the Saka region, situated in the northeast part of Morocco based on Landsat Oli-8 and ASTER images. Specifically, this study aims to: (1) map the lithological facies of the Saka volcanic zone, (2) discriminate the different minerals using Landsat Oli-8 and ASTER imagery, and (3) validate the results with field observations and geological maps. To do so, in this study we used different techniques to achieve the above objectives including color composition (CC), band ratio (BR), minimum noise fraction (MNF), principal component analysis (PCA), and spectral angle mapper (SAM) classification. The results obtained show good discrimination between the different lithological facies, which is confirmed by the supervised classification of the images and validated by field missions and the geological map with a scale of 1/500,000. The classification results show that the study area is dominated by Basaltic rocks, followed by Trachy andesites then Hawaites. These rocks are encased by quaternary sedimentary rocks and an abundance of Quartz, Feldspar, Pyroxene, and Amphibole minerals.

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“…There are many case studies [1][2][3] illustrating the application of multispectral data (such as ASTER and Landsat TM data) in geological mapping that allow discrimination of lithological units, structural interpretation and detection of minerals bearing host rocks. Many researchers have made use of ASTER, Landsat TM and Landsat 8 data for geological mapping, visualising lineaments, and mineral prospecting [4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Processing and Analysis of ASTER and Landsat 8 Scenes to Aid in Geological Mapping: A Case Study of Murchison Greenstone Belt Area, South Africa

Thomas

2020

GaEE

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This paper presents processing and analysis results of ASTER and Landsat 8 scenes to aid in geological mapping of Murchison Greenstone Belt region of Limpopo Province, South Africa. Images of ASTER acquired in 2005 and 2006 and Landsat 8 acquired in 2019 were downloaded and subset covering 5 mapping sheets was extracted. Images of different band ratios and band combinations were experimented using ENVI and SNAP software to identify suitable band/band ratio combinations to produce FCCs that enabled discrimination of lithology, structural features, lineaments, alteration and iron oxides, land/water, surface features, vegetation cover and healthy vegetation etc. Using DEM data, slope and shaded relief were also prepared that enabled the identification of the extent of protruded outcrops, some structural features and lineaments using different FCC displays. These datasets prepared in ENVI file format were later exported to GeoTiff/Imagine file for display in ArcMap by the mapping geologists. FCCs made in various band combinations, ratio combination and also with slope are useful in discriminating geology, structural features and protruded outcrops including dykes that are not so visible in a true colour image of the same resolution. This study could illustrate the usefulness of remote sensing analysis to aid in geological mapping using freely available ASTER and Landsat 8 data.

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Landsat 8 OLI Data for Identification of Hydrothermal Alteration Zone in Singhbhum Shear Zone using Successive Band Depth Difference Technique–A New Image Processing Approach

Cited by 19 publications

References 0 publications

Lunar ore geology and feasibility of ore mineral detection using a far-IR spectrometer

Lunar ore geology and feasibility of ore mineral detection using a far-IR spectrometer

Remote Sensing Data for Geological Mapping in the Saka Region in Northeast Morocco: An Integrated Approach

Processing and Analysis of ASTER and Landsat 8 Scenes to Aid in Geological Mapping: A Case Study of Murchison Greenstone Belt Area, South Africa

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