Obecny stan rozpoznania Lubelskiego Zagłębia Węglowego i perspektywy dalszych poszukiwań złóż węgli kamiennych
Abstract
THE PRESENT STATE OF KNOWLEDGE OF THE LUBLIN COAL BASIN AND PERSPECTIVES OF FURTHER SEARCH FOR HARD COALS
The Lublin Coal Basin (Fig. l) represents a new, vast area of occurrence of hard coal deposits which were discovered in the years 1964-1971 by the staff of the Geological Institute. It is situated at SW margin of the Precambrian Platform which was bearing a decisive influence on sedimentation of the Carboniferous, tectonic setting of the basin, and metamorphism of coals.
In the Lublin Basin (Fig. 2), the Carboniferous is underlain by rocks ranging 'in age from the Famennian to Precambrian (crystalline basement) with angular disconformity. Sedimentation of the Carboniferous began in the Middle Visean and continued without any longer breaks till the Westphalian D, in three environments: marine-paralic, paralic, and limnic.
Lower part of the profile (Fig. 2) comprises mainly marine deposits with intercalations of continental ones with thin layers of hard coals. The middle part comprises deposits of paralic environment more suitable for phytogenic sedimentation, and the upper deposits of limnic environment, mainly siltstones and claystones and numerous hard coal seams.
The basin is characterized by essentially fault-block tectonic. In NE part of this basin, Carboniferous strata are gently dipping from NE to SW, being cut by two fault systems, NE-SW and NW-SE oriented. The main coal-bearing series of this basin are assigned to the Lublin beds (Fig. 2) which represent stratigraphic equivalent of the Westphalian A-B. The thickness of the preserved Lublin beds ranges from some tens to about 900 m. In their profile, there were recorded about 24 economic coal seams ranging from 0.30 to 2.40 m in thickness.
Up to the present, detailed studies covered an area of about 642 square km in the Lublin Goal Basin (Fig. 1). The remaining parts of the basin are considered as perspective. At present, the geological studies are carried out in the areas A, B, and C (see Fig. 1).
The Lublin Coal Basin (Fig. l) represents a new, vast area of occurrence of hard coal deposits which were discovered in the years 1964-1971 by the staff of the Geological Institute. It is situated at SW margin of the Precambrian Platform which was bearing a decisive influence on sedimentation of the Carboniferous, tectonic setting of the basin, and metamorphism of coals.
In the Lublin Basin (Fig. 2), the Carboniferous is underlain by rocks ranging 'in age from the Famennian to Precambrian (crystalline basement) with angular disconformity. Sedimentation of the Carboniferous began in the Middle Visean and continued without any longer breaks till the Westphalian D, in three environments: marine-paralic, paralic, and limnic.
Lower part of the profile (Fig. 2) comprises mainly marine deposits with intercalations of continental ones with thin layers of hard coals. The middle part comprises deposits of paralic environment more suitable for phytogenic sedimentation, and the upper deposits of limnic environment, mainly siltstones and claystones and numerous hard coal seams.
The basin is characterized by essentially fault-block tectonic. In NE part of this basin, Carboniferous strata are gently dipping from NE to SW, being cut by two fault systems, NE-SW and NW-SE oriented. The main coal-bearing series of this basin are assigned to the Lublin beds (Fig. 2) which represent stratigraphic equivalent of the Westphalian A-B. The thickness of the preserved Lublin beds ranges from some tens to about 900 m. In their profile, there were recorded about 24 economic coal seams ranging from 0.30 to 2.40 m in thickness.
Up to the present, detailed studies covered an area of about 642 square km in the Lublin Goal Basin (Fig. 1). The remaining parts of the basin are considered as perspective. At present, the geological studies are carried out in the areas A, B, and C (see Fig. 1).