TIR hyperspectral interpretation of quartz crystallinity and composition within silicate bearing rocks

R. D. Hewson; T.J. Cudahy

doi:10.1109/IGARSS.2013.6723476

TIR hyperspectral interpretation of quartz crystallinity and composition within silicate bearing rocks

R. D. Hewson, T.J. Cudahy

Research output: Chapter in Book/Report/Conference proceeding › Chapter › Academic › peer-review

2 Citations (Scopus)

1 Downloads (Pure)

Abstract

Thermal infrared (TIR) spectroscopy and related remote sensing of quartz and silicates has traditionally been focused on developing methodologies to interpret their content and chemical composition. This study investigates the relationship between TIR spectral signatures, quartz crystallite dimension, and inferred crystallinity, as a means to discriminate sources of quartz within different lithologies and their associated formation origins. A diverse range of quartz forms, and also quartz bearing igneous, metamorphic and sedimentary samples were used to examine their classification according to various band parameter indices based on the quartz secondary reststrahlen feature. Scherrer analysis using X-ray diffraction (XRD) of a subset of these samples indicated an approximate logarithmic relationship with the band parameters attempted. This study suggests that the quartz crystallite dimension, inferred crystallinity and potentially its formation source, may be interpreted by TIR band parameters using either proximal hyperspectral TIR measurements or remote sensing techniques.

Original language	English
Title of host publication	2013 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Place of Publication	Piscataway, NJ
Publisher	IEEE
Pages	3076-3079
Number of pages	4
ISBN (Electronic)	978-1-47991114-1
DOIs	https://doi.org/10.1109/IGARSS.2013.6723476
Publication status	Published - 2013
Externally published	Yes
Event	33rd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013: Building a Sustainable Earth through Remote Sensing - Melbourne, Australia Duration: 21 Jul 2013 → 26 Jul 2013 Conference number: 33 http://www.igarss2013.org/

Publication series

Name	IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Publisher	IEEE
ISSN (Print)	2153-6996
ISSN (Electronic)	2153-7003

Conference

Conference	33rd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013
Abbreviated title	IGARSS
Country/Territory	Australia
City	Melbourne
Period	21/07/13 → 26/07/13
Internet address	http://www.igarss2013.org/

Keywords

crystallite
hyperspectral
quartz
Scherrer
TIR

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10.1109/IGARSS.2013.6723476

Cite this

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Hewson, RD & Cudahy, TJ 2013, TIR hyperspectral interpretation of quartz crystallinity and composition within silicate bearing rocks. in 2013 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)., 6723476, IEEE International Geoscience and Remote Sensing Symposium (IGARSS), IEEE, Piscataway, NJ, pp. 3076-3079, 33rd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013, Melbourne, Victoria, Australia, 21/07/13. https://doi.org/10.1109/IGARSS.2013.6723476

TIR hyperspectral interpretation of quartz crystallinity and composition within silicate bearing rocks. / Hewson, R. D.; Cudahy, T.J.

2013 IEEE International Geoscience and Remote Sensing Symposium (IGARSS). Piscataway, NJ : IEEE, 2013. p. 3076-3079 6723476 (IEEE International Geoscience and Remote Sensing Symposium (IGARSS)).

Research output: Chapter in Book/Report/Conference proceeding › Chapter › Academic › peer-review

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N2 - Thermal infrared (TIR) spectroscopy and related remote sensing of quartz and silicates has traditionally been focused on developing methodologies to interpret their content and chemical composition. This study investigates the relationship between TIR spectral signatures, quartz crystallite dimension, and inferred crystallinity, as a means to discriminate sources of quartz within different lithologies and their associated formation origins. A diverse range of quartz forms, and also quartz bearing igneous, metamorphic and sedimentary samples were used to examine their classification according to various band parameter indices based on the quartz secondary reststrahlen feature. Scherrer analysis using X-ray diffraction (XRD) of a subset of these samples indicated an approximate logarithmic relationship with the band parameters attempted. This study suggests that the quartz crystallite dimension, inferred crystallinity and potentially its formation source, may be interpreted by TIR band parameters using either proximal hyperspectral TIR measurements or remote sensing techniques.

AB - Thermal infrared (TIR) spectroscopy and related remote sensing of quartz and silicates has traditionally been focused on developing methodologies to interpret their content and chemical composition. This study investigates the relationship between TIR spectral signatures, quartz crystallite dimension, and inferred crystallinity, as a means to discriminate sources of quartz within different lithologies and their associated formation origins. A diverse range of quartz forms, and also quartz bearing igneous, metamorphic and sedimentary samples were used to examine their classification according to various band parameter indices based on the quartz secondary reststrahlen feature. Scherrer analysis using X-ray diffraction (XRD) of a subset of these samples indicated an approximate logarithmic relationship with the band parameters attempted. This study suggests that the quartz crystallite dimension, inferred crystallinity and potentially its formation source, may be interpreted by TIR band parameters using either proximal hyperspectral TIR measurements or remote sensing techniques.

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TIR hyperspectral interpretation of quartz crystallinity and composition within silicate bearing rocks

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