Clay Minerals Mapping from Imaging Spectroscopy

Grandjean, Gilles; Briottet, Xavier; Adeline, Karine; Bourguignon, Anne; Hohmann, Audrey

doi:10.5772/intechopen.86149

Cited by 4 publications

(2 citation statements)

References 31 publications

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“…Slonimskaya et al [13] and Besson and Drits [17,18], who analyzed the 1M K-dioctahedral micas within a wide compositional range (illites, glauconites, aluminoceladonites and celadonites), only focused on the OH-stretching vibrations. The most recent IR studies deal with geological applications of spectroscopy data on white mica (e.g., [29,31] or with other groups of silicate minerals [32,33]). Recently, a number of diagnostic features that include the band positions and profile in the regions of Si-O bending, Si-O stretching, and OH-stretching vibrations were suggested for the illite-aluminoceladonite series [7] and the Fe-bearing K-dioctahedral micas [8].…”

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confidence: 99%

Distinguishing Features and Identification Criteria for K-Dioctahedral 1M Micas (Illite-Aluminoceladonite and Illite-Glauconite-Celadonite Series) from Middle-Infrared Spectroscopy Data

2020

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A representative collection of K-dioctahedral 1M micas ranging in composition from (Mg, Fe)-poor illites to aluminoceladonites through Mg-rich illites (Fe-poor varieties) and from Fe-bearing, Mg-rich illites to celadonites through Fe-illites, Al-glauconites and glauconites (Fe-bearing varieties) was studied by Fourier-transform infrared (FTIR) spectroscopy in the middle-infrared region. Analysis and comparison of the relationships between the band positions and cation compositions of Fe-poor and Fe-bearing K-dioctahedral micas provided a generalized set of FTIR identification criteria that include the band positions and profiles in the regions of Si–O bending, Si–O stretching, and OH-stretching vibrations. FTIR data allow unambiguous identification of illites, aluminoceladonites, and celadonites, as well as distinction between Fe-illites and illites proper, as well as between Al-glauconites and glauconites. Specifically, a sharp maximum from the AlOHMg stretching vibration at ~3600 cm−1, the presence of a MgOHMg stretching vibration at 3583–3585 cm−1, as well as characteristic band positions in the Si–O bending (435–439, 468–472 and 509–520 cm−1) and stretching regions (985–1012 and 1090–1112 cm−1) are clearly indicative of aluminoceladonite. The distinction between Fe-illites and Al-glauconites, which have similar FTIR features, requires data on cation composition and unit-cell parameters.

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confidence: 99%

Distinguishing Features and Identification Criteria for K-Dioctahedral 1M Micas (Illite-Aluminoceladonite and Illite-Glauconite-Celadonite Series) from Middle-Infrared Spectroscopy Data

2020

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“…They therefore offer information on organic compounds in favourable cases, mainly the heavier ones (such as PAHs) or the polar ones (such as phenols). They also offer possibilities for mineral identification [25,26], especially if complemented by pXRF or LIBS.…”

Section: Pftir and µRamanmentioning

confidence: 99%

On-Site Analyses as a Decision Support Tool for Dredging and Sustainable Sediment Management

Lemière

Laperche

Wijdeveld

et al. 2022

Land

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Beneficial use of dredged sediments, either in harbours or waterways, is based on their potential as alternative resources. Such sediments can be considered as bulk materials for industrial needs, which is predicated on their current waste status or meeting end-of-waste constraints. They also can be an integral part of beneficial use projects using sediments as a bulk component, including civil engineering and landscaping. This is particularly important for beneficial use projects focusing on climate change effects mitigation, such as flood protection works, coastline defence or littoral urban areas redevelopment. When dredged sediment is used as a bulk material, its acceptability is based on an assumed homogeneity of its properties. On-site analyses allow pre-dredging detailed mapping at a denser scale than laboratory ones; monitoring dredgings during operations and during processing; and continuous control of their properties at the implementation site. This is currently possible only for a selection of inorganic analytes. When dredgings are part of a larger beneficial use project, on-site analyses facilitate first the baseline survey and the sediment source characterisation. Continuous monitoring of the sediment load allows a fast detection of contamination hot spots and their adequate management. Site survey via on-site instruments allow end users and communities to check themselves the contamination level, hence acceptability is better. On-site dredged sediment analyses monitor both building properties and environmental compliance; soil and sediment analyses at receiving sites; surface and groundwater, either for impact assessment or for monitoring works. On-site instruments provide immediate results and allow dynamic or adaptive sampling strategies, as well as allowing operational decisions in real time. Confirmation by laboratory analyses is required for validation, but on-site sample screening for laboratory analyses improves their efficiency. The present paper was developed on the basis of an earlier presentation, which it developed and updated extensively.

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ASTER remote sensing data for delineation of base metal–bearing dolomites in south-east of Aravalli Craton, India

2022

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Clay Minerals Mapping from Imaging Spectroscopy

Cited by 4 publications

References 31 publications

Distinguishing Features and Identification Criteria for K-Dioctahedral 1M Micas (Illite-Aluminoceladonite and Illite-Glauconite-Celadonite Series) from Middle-Infrared Spectroscopy Data

Distinguishing Features and Identification Criteria for K-Dioctahedral 1M Micas (Illite-Aluminoceladonite and Illite-Glauconite-Celadonite Series) from Middle-Infrared Spectroscopy Data

On-Site Analyses as a Decision Support Tool for Dredging and Sustainable Sediment Management

ASTER remote sensing data for delineation of base metal–bearing dolomites in south-east of Aravalli Craton, India

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