- 2290 - 
Normally infrared colour film is comparable with normal colour film. 
It has, however, pronounced advantages when it comes to vegetation 
classification - for frequently there is an association between the 
vegetation type and parent material - and when rock outcrops are being 
mapped. 
Surficial deposit mapping from infrared colour air photographs integrated 
with field checks has given very good results. Applied in this way air 
photograph techniques have definite advantages, especially for the pro- 
duction of the kind of surficial deposit maps presently being produced 
by the Geological Survey of Sweden. The technique is less time consuming 
than traditional field mapping and often it produces more precise distri- 
bution maps. 
Date of preparation June 1978. 
References 
Buringh, P., 1960: The application of aerial photographs in soil surveys. 
- Manual of Photographic Interpretation. American Society of Photo- 
grammetry, Washington, s. 633-666. 
Lundén, B., 1977: Jordartskartering med flygbildsteknik. En metodunder- 
SOkning i olika bildmaterial. Summary: Mapping of surficial depo- 
sits from air photographs. - Sveriges Geologiska Undersókning, 
Ser. C, Nr 738, 100 pp. 
  
  
  
  
  
1000 m 
9 500 1900 m 
Field mapped surficial deposit map. Surficial deposit map from IR colour 
  
air photo interpretation (with a 
  
KL Berg ^ Morün s] Isülvsmateriat oC Postglacial lero 1 1mi ted fi el d cont rol ) . 
BY Bedrock Tilt boo] Glaciofluvial material Postglacial clay 
“| Svalisediment (sand, grus) 1 | Glacial lera 
| Beach deposits (sand, gravel) Glacial clay 
  
—-—] Kàárr _w_] Mosse Silt (mjàla, finmo) Gyttjelera 
——| Fen -+-| Bog Silt Gyttja clay