GEOLOGICA BALCANICA, 30, 3-4, Sofia, Febr. 2001, p. 59-63 New fossil evidence for the Lower Paleogene ( Krumovgrad Group) in the East Rhodope Mountains, SE Bulgaria Ek. Dimitrova, A. Goranov, Iv. Boyanov Geological Institute, BAS, 1113 Sofia; E-mail:
[email protected] (Submitted 15.12.1999; accepted for publication 23. 06.2000) EK. /{uMumposa, A. ropaH08, Hs. bO.RH08. HOBble na Abstract. Ek. Dimitrova, A. Goranov, Iv. Boyanov. New JieOHmOJIOZU'IeCKUe daHHble 0 paHHeM naAeozeHe (Kpy fossil evidence for the Lower Paleogene (Krumovgrad MOBZpadcKa.R zpynna) s Bocmo'IHblX Podonax. OpraHo Group) in the East Rhodope Mountains, SE Bulgaria. An reHHbte H3BeCTHJIKH cpe~H rpy6oTeppHreHHLIX OTROliCe Algal detritus which is the basic rock-forming material is HHH Kp}'MoBrpa~cKoH rpynn1.1 K10ry oT r. Huai{nourpa established in the organogeneous limestones among the lla no p. KocTHnKOBCKOH (MaH~PHUCKoe noHHliCeHHe) coarse-terrigenous deposits of the Krumovgrad Group of cnoliCeHbl npeHM}'lllecTBeHHO BO!lopacneBbiM ~eTpHry the Mandritsa depression to the South of lvaylovgrad coM. B HHX ycTaHOBneHo IIJopaMHHHIIJepouoe coo6tQecT along the Kostilkovska river valley. A various foraminifer so, COCTOllnt.eeCJI rnaBHbiM 06pa30M H3 npe~CTaBHTeneH al assemblage is found in these rocks consisting mainly of ceMeHcTB Lagenidae, Discorbidae, Miliolidae, Textularii the representatives of the families of Lagenidae, Discor dae, Rotaliidae, Acervulinidae, Linderinidae. bidae, Miliolidae, Textulariidae, Rotaliidae, Acervulin 3Ta opraHHJMOBall accouHaUHll xapanepHa ~ll pH idae, Linderinidae. These bioassociations are typical of IIJouoii (MenKOBO~HoH) IIJaUHH. B HeH co~epliCaTcll 6onb the reef(marine shallow-depth) facies. They contain most WHHCTBO 6H03ReMeHTOB, npHHa~eliCamHX K C006tQeCT of the bioelements of the co-assemblages of the intraplat BaM BHYTpennaTIIJopMeHHOH IIJaUHH naneoueHOBLIX H form facies of the Paleocene and the Early up to Middle paHHe-cpe!lHe3oUeHOBLIX 6acceHHOB JOliCHoro TeTHca.