NDLI: Multiseasonal and geobotanical approach in remote detection of greisenization areas in the serra da pedra branca granite, goias state, brazil

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Multiseasonal and geobotanical approach in remote detection of greisenization areas in the serra da pedra branca granite, goias state, brazil

Content Provider	NASA Technical Reports Server (NTRS)
Author	Almeidafilho, R.
Copyright Year	1983
Description	Multiseasonal analysis of LANDSAT multispectral images in CCT format permitted the mapping of lithologic facies in the Pedra Branca Granite, using geobotanical associations, which occur in the form of variations in the density of cerrado vegetation, as well as the predominance of certain distinctive vegetation species. Dry season images did not show very good results in lithological differentiation due to anomalous illumination conditions related to the low solar elevation and the homogeneity in the vegetation cover, specially the grasses that become dry during this season. Rainy season image, on the other hand, allowed the separation of the lithological types, a fact that can be attributed to a greater differentiation among the geobotanical associations. As a result of this study, the muscovite-granite facies with greisenization zones, which are lithological indicators of important tin mineralization within the Serra da Pedra Branca Granite, were mapped. This methodology can be sucessfully applied to similar known granite bodies elsewhere in the Tin Province of Goias.
File Size	4720079
Page Count	24
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19840008549
Archival Resource Key	ark:/13960/t80k76r1b
Language	English
Publisher Date	1983-12-01
Access Restriction	Open
Subject Keyword	Earth Resources And Remote Sensing Satellite Imagery Soils Computer Compatible Tapes Earth Resources Program Geobotany Mineral Exploration Vegetation Tin Brazil Seasons Landsat Satellites Granite Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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