-— Ww V U 
COND V CJ» Ww 
C2 =n 
f 
  
3.2 Basic and supplementary materials 
The requirements given above dictate the choice 
of RSM for the purposes of mapping. For 
compilation of maps on 1:200,000 and 
1:1,000,000 scales, materials of the native 
surveying system MK-4 correspond most closely 
to these requirements. They are both detail and 
review . As supplementary materials it is 
advisable to use data of KATE-200 for the review 
level and data of KFA-1000 for the detail level. 
Materials of visible and near infrared ranges of 
the LANDSAT TM are used as additional ones to 
reveal peculiar features of  petrological 
composition. Data of the thermal channel 
LANDSAT are used for the mapping of zones of 
recent active volcanicity. Materials of the thermal 
channel of NOAA system give important 
information on deep structure in the small-scale 
mapping (on scales smaller than 1:1,000,000). 
4. STAGES OF MAP COMPILATION 
4.1 Preliminary stage 
Necessary RSM are gleaned at the preliminary 
stage of map compiling process. Conversion of 
analogue materials of surveying to the digital 
form, necessary transformations and reduction of 
RSM to the necessary cartographic projection 
are carried out at this stage. It is implied that 
geological and geophysical materials are also 
presented in the digital form. 
4.2 Compilatory stage 
The compilation of a geological map is a multi- 
aspect process of integration of diverse 
information, its complex analysis, and 
representation of final results in the cartographic 
form. It is at this stage when basic problems of 
RSM use are solved. 
Modern computer GIS technologies for the 
integrated analysis of geological and remote 
sensing data envisage the fulfilment of a series 
of successive operations. 
671 
Revealing of the structural 
framework.Structural frame of the map is 
compiled at the first stage. This work begins with 
RSM interpretation together with the analysis of 
cartographic materials. Visual and automated 
determination of lineaments is carried out using 
RSM. A software package designed at VNIIKAM 
is used for these purposes. 
The lineament analysis involves construction of 
rose-diagrams, estimation of lineament density, 
determination of field gradients. The final result is 
a sketch of the lineaments. This information is 
checked by data of geological observations and 
geophysical data. The control over results of the 
RSM analysis materials is exerted in ERDAS and 
ARC/INFO enviroment. In so doing we can reveal 
new information which is lacking in source maps. 
Faults selected in the process of the combined 
analysis of the maps and the images are 
subjected to ranging and generalization taking 
into account the results of interpretation of the 
images on smaller scales. 
Revealing the outlines of geological bodies. 
After mapping the rupture dislocations we can 
turn to compilation a contour basis. The analysis 
of initial geological materials is the main 
procedure used for revealing the contours of 
geological geological bodies. RSM only help us 
to make a pattern of geological boundaries more 
precise, for which purpose different methods of 
interchannel image transformations are used with 
subsequent visual analysis of synthesized 
images. An additional criterion of more accurate 
drawing the boundaries is the results of the 
automated processing of sketches of the 
lineaments. For this purpose areal gradients, i.e. 
gradients with equal parameters and 
characteristic features of lineament density are 
distinguished on their basis. Boundaries of such 
areal elements are considered as boundaries of 
structural-petrological complexes. A programme 
distinguishing the areas with predetermined 
parameters of brightness may be also used. 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B7. Vienna 1996