机译:Upper Ordovician olistostromes of the Agyrek and Kosgombai mountains: Problems of correlation between Lower Paleozoic sedimentary and sedimentary-volcanogenic complexes in central Kazakhstan
机译:Refined age of the anoxic level in the Cenomanian-Turonian transition of the Mt. Sel'-Bukhra section (Crimean Mountains, Ukraine): Implications of radiolarian analysis