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PBG
starts its activity in May 1950
as a state-own company subordinated to the Ministry of Mining. Since 1952
PBG was under the authority of teh Central Office of Geology, next (1985-1996)
the Ministry of Environment, later (1996-2008) Masovian Voivode, and since
January 2008 PBG is a company limited under the authority of the Ministry
of the Treasury.
 From the beginning
PBG’s activity was focused on geophysical investigation to geological
recognition of Poland, minerals prospecting and hydrogeology. Apart of
geophysical activity PBG constructed and manufactured various geophysical equipment.
Starting
its activity (1950-1960) PBG has developed geophysical investigations for recognition of regional
geological structure of Poland and for oil mining purposes. There were also
performed detailed geophysical surveys for recognition of raw materials
deposits and drinking water resources. To increase prospecting works for
oil and gas exploration in Poland, PBG
transferred its seismic branch to newly created company in
Kraków. This caused necessity to rebuild PBG’s seismic
potential and develop investigations based on non seismic methods as
magnetic, gravity, magnetotelluric and resistivity ones.
 With own imported and
geophysical equipment PBG provided geophysical recognition of Poland:
semi-detailed gravity, magnetic Z and refraction seismic surveys brought
recognition of deep crystalline basement. Wide range of investigation provided
information for elaborating gravity, magnetic and consolidated basement
maps of Poland. Geophysical surveys were used for prospecting and
recognition of raw materials deposits as salt and hard coal deposits (E
Poland, Silesia), recognition of brown coal deposits (central and NW
Poland), metal ores (NE Poland), copper, sulphur and other. An interesting
example of works performed by PBG (early 1960s) is the first seismic, reflection image of
the Baltic Sea, presenting distinct seismic horizons.
PBG
provided geophysical investigations were for industrial investment
developed in Poland: dams
projects in Carpathians and along Vistula river (1980-1990), recognition of
geological structure for NPP location (1970, 1985-1990), recognition of
voids at post-mining areas, etc. Geophysical surveys with the use of
resistivity methods were successfully applied for prospecting and
recognition of drinking water resources, both in regional scale and for
industrial and urban purposes. PBG has developed its own method for
investigation of ground water salinity caused by sea-water infiltration or
migration of contamination from industrial waste.
Apart
of domestic services PBG carried out geophysical surveys abroad and developed methods for
geophysical data interpretation based on newest software. This allowed to
create data sets for selected methods and was a base for integrated
geophysical-geological interpretation of data.
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