level
| the
max-
itua-
rams
chni-
ated
acter
ctive
erent
x EIC Liaias 167 Nu -
Fig.5. Black and white photo (a), and thermal images
of an overburden-slope. Water content zone is clearly
visible on ,daily thermal image" (b) and also after
digital image processing as a thermal inertia effect (c).
overlay formations, is very complex process and
requires a neutral reaction of soil. The soil having
too small pH values are designed as the toxic, acid
ground. These grounds demand an initial neutraliza-
tion before introduction of flora. In the other words,
the localization of these formation is very essential
for proper projection and leading of land reclamation
works. Thermovision survey is extremely useful for
toxic soil detection an the waste-dump slops.
It was stated, that the toxic ground are characterized
by high level of radiation temperature, which many
times exceeds the emission of neighbouring forma-
tions (Mularz, 1987).
The character and the projection way of the toxic
ground is almost identical on the evening ther-
mograms, taken directly after sunset, and on the
sunrise thermograms, recorded in minimal thermal
contrast conditions. It is very important, that this
fact is not the effect of real temperature distribution,
but it is caused by differences in emission ability
of toxic and background soil.
In the course of laboratory investigation, it was
stated, that the sample of toxic soil after neutraliza-
tion by destilated and ammonia water characterize
of considerable reduction of thermal radiation in
comparison with active state.
Practical aspect of executed researches consist in
possibility of practical application of the remote
thermal recording, made first of all from plane, in
order to description and control of toxic soil neutra-
lization on the dumping groubd area.
4. COMPLEX ESTIMATION OF GEOLOGICAL
CONDITIONS.
Aerial photography taken periodically over the open
pit mine area, allow for complex estimation of ge-
ological conditions; generally in the sphere of:
1. recognition and documentation of geological con-
ditions, and notable in discrimination of lithologi-
cal character of exposured formation on slopes
and working levels, within the overlay and deposit
series (Fig.6),
2. ground lithological character recognition within
stable slopes and the top of dumpbody for the
necessity of land reclamation design.
3. interpretation of the engineering-geological
processes, occurring at open pit mine slopes,
foreground, slopes and the top of dumpbody
(slope deformation of landslide type, erosion,
base displacement etc.) for necessity of en-
gineering-geological prognosis (Fig.7 and 8).
4. inventory of exploitation works and balance of
mineral output effects for estimation of resources
utilization,