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Abstract

The paper describes results obtained during a project on the applicability of remote sensing techniques in mineral exploration. The target area is Central East Greenland between 70 degrees N and 75 degrees N. The physiography of the area is dominated by mountainous terrain. In general the glacially eroded land surface is very well exposed. The climate is arctic, and the area is free from extensive snow cover from mid June to mid September. Almost all the data used in the project originate from Landsat satellites. Image processing software developed in the project is described. Special ratio plots, factor score plots etc. have been developed for the regional reconnaissance mapping of color anomalies. Several new techniques for classification and discrimination have been tested. These include multistep procedures, augmenting the number of variables with ratios and factor scores, and different non-exhaustive procedures. The geological results are a general structural analysis of the area, a mapping and analysis of hydrothermal alteration zones in tertiary alkaline intrusive, and a reconnaissance mapping of color anomalous zones in Caledonian - Precambrian metamorphic complexes. The techniques are found to be effective low cost tools for delineating areas of high exploration potential.

Additional information

Authors: CONRADSEN K, IMSOR, THE TECHNICAL UNIVERSITY OF DENMARK, LYNGBY (DENMARK);GUNULF J, IMSOR, THE TECHNICAL UNIVERSITY OF DENMARK, LYNGBY (DENMARK);HARPOTH O, IMSOR, THE TECHNICAL UNIVERSITY OF DENMARK, LYNGBY (DENMARK);NILSSON G IMSOR, THE TECHNICAL UNIVERSITY OF DENMARK, LYNGBY (DENMARK), IMSOR, THE TECHNICAL UNIVERSITY OF DENMARK, LYNGBY (DENMARK)
Bibliographic Reference: EUR 10334 EN (1986), FS, PP. 43-80, BFR 600, EUROFFICE, LUXEMBOURG, POB 1003
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