Dunite 
Sediments 
Upper pillow lava 
Gabbro 
Lower pillow lava 
  
Basal group 
    
   
  
   
  
  
Fig. 7. Final CCSM representation (original is in color). 
displayed in grey scale with white corresponding to the highest 
positive correlation. 
Our final interpretation shown in Fig. 7 is based on the CCSM 
results. For each CCSM image we extracted the pixels that most 
closely matched the input spectrum (e.g. those with correlation 
values within 10% of the perfect value). These were color-coded, 
combined with the pixels from the other CCSM images and 
overlain for display purposes onto TM band 5. In case one pixel 
was assigned to two units, we disregarded it. Fig. 7 shows a three- 
dimensional spectral and spatial TM data cube displaying our 
results. The spectral domain shows a color-coded stacked slice 
constructed using the six Landsat TM bands displayed from the top 
(TM 1) to the bottom (TM 7). Color-coding is done according to 
reflectance relative to average; red and yellow are high reflectance 
and purple and black are low reflectance. The spatial domain shows 
the key lithologies. Note that copper mineralization is known to 
occur along the boundary of upper and lower pillow lava series. 
Especially the upper pillow lava series is very well marked in our 
final image. 
CONCLUSIONS 
Detailed geologic mapping and mineral prospecting has been 
carried out over the last decades in Cyprus, thus the present study 
is of a purely scientific nature. However it demonstrates the 
potential of using advanced image processing techniques for 
mineral prospecting in ultramafic terrains. We were able to locate 
the boundary between two lava sequences which forms an 
important target for copper exploration. Furthermore, serpentinized 
dunites were mapped that may host asbestos deposits. At a 
reconnaissance level, CCSM may contribute to a first assessment of 
mineral potential in ultramafic terrains although it will not replace 
traditional geologic field practice. 
ACKNOWLEDGEMENTS 
We would like to thank Dr. G. Constantinou, Dr. A Charalambides, 
and Dr. C. Xenophontos of the Geological Survey of Cyprus for 
their help in organising and conducting the necessary field work. 
REFERENCES 
CONSTANTINOU, G., and GOVETT, GJ.S., 1972, 
Genesis of sulphide deposits, ochre and umber of Cyprus. 
Transactions of the Institute of Mining and Metallurgy, 81, pp. 34- 
46. 
CONSTANTINOU, G., and GOVETT, G.J.S., 1973, 
Geology, Geochemistry, and Genesis of Cyprus Sulphide deposits. 
Economic Geology, 68, pp. 843-858. 
DAVIDSON, D., BRUCE, B. and JONES, D., 1993, 
Operational remote sensing mineral exploration in semi-arid 
environment: the Troodos massif, Cyprus. In Proceedings of the 
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International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B7. Vienna 1996