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TitleSpectral characteristics of bedrock map units using LANDSAT TM and topographic data: application to bedrock mapping in Borden Peninsula, Nunavut
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AuthorRencz, A; Harris, J; Sangster, D; Budkewitsch, P
SourceGeological Survey of Canada, Current Research (Online) no. 2000-C4, 2000, 7 pages, https://doi.org/10.4095/211100
Year2000
PublisherNatural Resources Canada
Documentserial
Lang.English
Mediaon-line; digital; CD-ROM
RelatedThis publication is contained in Geological Survey of Canada; Geological Survey of Canada; (2000). Current Research 2000, Geological Survey of Canada, Current Research (Online) no. 2000-ABCDE
File formatpdf
ProvinceNunavut
NTS48A/05; 48A/06; 48A/07; 48A/08; 48A/09; 48A/10; 48A/11; 48A/12; 48A/13; 48A/14; 48A/15; 48A/16; 48B/07; 48B/08; 48B/09; 48B/10; 48B/15; 48B/16; 48C/01; 48C/02; 48D/01; 48D/02; 48D/03; 48D/04
AreaBorden Peninsula; Baffin Island
Lat/Long WENS-85.5833 -80.3333 73.2500 72.2500
Subjectsgeophysics; spectral analyses; LANDSAT; LANDSAT imagery; topography; satellite imagery; remote sensing; analytical methods; bedrock geology; Archean; Admiralty Group; Bylot Supergroup; Nunatsiak Group; Uluksan Group; Eqalulik Group; Mary River Group; Proterozoic; Precambrian
ProgramCentral Baffin Partnership Project, 1998-1999
Image
Released2000 01 01
AbstractThe ability to characterize rock types based on spectra from remotely sensed data is being evaluated for an area of Arctic Canada. Training sites from fourteen previously identified bedrock map units (scale of 1:250 000) were used to test the separability of each rock type based on LANDSAT TM bands 1 7 and topographic data. Box and whisker plots using one variable at a time versus 14 bedrock map units showed differences between the rock units. Discriminant analyses based on the training sites correctly classified 91% of all classes when LANDSAT and topographic data were integrated. An accuracy of 79.1% was found using the seven channels of LANDSAT TM data. It is postulated that the satellite data are responding to mineralogical and/or chemical differences between the map units.loom in the region.
GEOSCAN ID211100