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 proceedingChapterAcademicpeer-review

1 Citation (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 languageEnglish
Title of host publication2013 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages3076-3079
Number of pages4
ISBN (Electronic)978-1-47991114-1
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event33rd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013: Building a Sustainable Earth through Remote Sensing - Melbourne, Australia
Duration: 21 Jul 201326 Jul 2013
Conference number: 33
http://www.igarss2013.org/

Publication series

NameIEEE International Geoscience and Remote Sensing Symposium (IGARSS)
PublisherIEEE
ISSN (Print)2153-6996
ISSN (Electronic)2153-7003

Conference

Conference33rd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013
Abbreviated titleIGARSS
CountryAustralia
CityMelbourne
Period21/07/1326/07/13
Internet address

Keywords

  • crystallite
  • hyperspectral
  • quartz
  • Scherrer
  • TIR

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