ПАЛЕОГЕОГРАФІЧНІ УМОВИ УТВОРЕННЯ ВУГЛЕНОСНОЇ ТОВЩІ ЛЮБЕЛЬСЬКОГО РОДОВИЩА ЛЬВІВСЬКО-ВОЛИНСЬКОГО БАСЕЙНУ НА ОСНОВІ АНАЛІЗУ ЛІТОЛОГО-СТРАТИГРАФІЧНИХ РОЗРІЗІВ

• Datum: 2019
• Hauptverfasser: Buchynska, I.V., Marchak, M.M., Lazar, H.I.
• Format: Artikel
• Sprache: Ukrainian
• Veröffentlicht: Institute of Geological Sciences of the Ukrainian National Academy of Sciences 2019
• Schlagworte: вугленосна товща; літолого-стратиграфічні розрізи; палеогеографія; Любельське родовище; Львівсько-Волинський басейн; УДК 551.763 (477.83)
• Online Zugang: http://ts.igs-nas.org.ua/article/view/208880
• Назва журналу: Tectonics and stratigraphy

 Determination of paleogeographical conditions for formation of coal-bearing formation of the Lyubelya field of the Lviv-Volyn Basin was conducted on the basis of the analysis of lithological-stratigraphical sections in area of the of the Lyubelya-3 plot. Studies of coal-bearing thickness wither the limits of the separate plot of the field will enable us to investigate in detail the evolution of the peat accumulation of the field in general and will help to interpret tectonic movements, to determine facies associations and to reproduce paleorelief.By lithological composition the studied thickness is mainly of aleurolite-argillite composition with some layers of sandstones, limestones and coal seams. Its accumulation occurred while alternating of marine shallow-water, near-shelf lagoon-bog and continental conditions. Smooth relief and humid tropical climate, the presence of boggy plots located on the open coast of the shallow sea contributed to the accumulation.In the studied territory, an intensive lowering of the south-western of the territory of the Lyubelya-3 plot in Serpukhovian time of the Lower Carboniferous is observed. Sufficient in flux of terrigenous material, creation of conditions for compensating sedimentation that promoted wide bogging of the locality and formatting of paleopeat deposits were connected with it. North-eastern and eastern parts of the plot underwent perceptible rising movements that is observed by the change in the lithological-facies of rocks.Obtained results confirm the common notions of paleogeographical conditions for the formation of coal-bearing thickness of the Lyubelya field of the Lviv-Volyn Basin. With common regressive trending and cyclic character of sedimentation the formation of relatively thick terrigenous polyfacial thickness with the layers of coal and limestone occurred. Common regressive trending caused by rising movements in the field of the Ukrainian crystalline shield led to receding of the sea in the south-western direction. In addition the gradual widening of continental situations of sedimentation and reducing of marine ones occurred.