Среднеэoценовые отложения Луковитской синклинали как индикатор тектонических событий

Kh. Khrisclzev, K. Aladgova-Khrischeva. The Middle Eocene deposits in Lukovit syncline as an indicator of tectonic events. A sequence of coarse terrigenous, in places boulder conglomerates over 100 m thick is exposed in the southeastern part of Lukovit syncline. The terrigenous materials is of exotic composition and comprises mainly metamorphic and granitoid rocks which are widespread in Srednogorie zone. The conglomerates overlie and to the north interfinger laterally with a sequence of mica sandstones. The sandstones are composed of disintegration products of the same rocks which make up the fragments of the conglomerates. The sediments of the two sequences lack fo ssil remains. Their Middle Eocene age is indirectly determined on the basis of their normal position (without breaks) over faunistically proven rocks referred to the lowermost parts of the Middle Eocene.
   The local development of exotic terrigenous rocks so far to the north (in the Transitional zone) may be explained by destruction and deposition of material from the Srednogorie zone, transported to the north as a gravity thrust. This event took place in the Middle Eocene.