GEOLOGIJA 40, 233-240 (1997), Ljubljana 1998
Integrated biostratig^raphy of the Novi Pazar
Campanian/Maastrìchtian sequence (Vardar Zone)
Paola de Capoa
Dipartimento Scienze della Terra, Università "Federico П"
30138 - Napoli, Largo Marcellino, 10, Italy
Svetlana Polavder
Geoinstitut, Rovinjska 12, 11000 Beograd, Yugoslavia
Rajka Radoičić
Kr. Petra 38, 11000 Beograd, Yugoslavia
Key words: nannoplankton, biostratigraphy, Campanian, Maastrichtian, preflysch,
Vardar Zone
Abstract
Hemipelagic and pelagic sediments (=lower and middle part of the preflysch auct)
outcropping in Mur section (Novi Pazar, Vardar Zone) have been subject of calcareo-
us nannoplankton analysis. Four calcareous nannofossils zones were recognized in
the studied sequence. The obtained data agree with biostratigraphic evidence co-
ming from benthonic and planktonic forams. The consideration that flysch must be
post-Maastrichtian in age is supported by calcareous nannoplankton indicating a
Middle Eocene age of some samples coming from the flysch of Novi Pazar area.
Introduction
Cretaceous deposits in the Raška region (surroundings of Novi Pazar, Vardar Zone,
fig. 1) trangressively overlie Paleozoic rocks. They have been described in the Bajevi-
ca Mur area, SW of Novi Pazar, as follows: 1) basal conglomerate and sandstones, 2)
rudistid limestone (Santonian), 3) preflysch sediments (Campanian - Maastrichtian)
and 4) Maastrichtian flysch (R a m p n o u x, 1964; Petrovič & Jankičević,
1988).
Shallow water limestones of the Mur section (fig. 2) bear Santonian-Campanian ru-
distid assemblages (P e j o v i c, 1978, 1996). Jerotijević (1996), described a
rich benthonic foraminiferal association (Idalina antiqua association) as Late San-
tonian-earliest Campanian in age. The rudistid limestones grade into hemipelagic
and pelagic sediments (=part of the preflysch sediments according to Petrovič
& Jankičević, 1988). In about 35 m elevata and ventricosa zones have been
234
Paola de Capoa, Svetlana Polavder & Rajka Radoičić
Fig. 1 Geological map of the studied area, according to Milovanovic and Ćirić, 1968
recognized (J e r o t i j e v i c, 1996; Jerotijević - Polavder, 1997). The
successive planktonic foraminiferal zones have not been documented.
The lithoclastic-bioclastic breccia bed rich in rudist fragments and transported
large forams (Siderolites calcitrapoides, Orbitoididae) has been dated as Early Maas-
trichtian. The Campanian/Maastrichtian boundary is hypothetically placed a few
meters below the breccia bed.
Integrated biostratigraphy of the Novi Pazar
235
Fig. 2. Stratigraphie column of the Mur succession
To obtain more detailed stratigraphie results, we studied the calcareous nanno-
plankton associations from the same section.
236_Paola de Capoa, Svetlana Polavder & Rajka Radoičić
Calcareous nannoplankton biostratigraphy
Eight samples (S126-S137) have been studied coming from the hemipelagic sedi-
ments of the Mur sequence (figs. 1 and 2). The following nannoplankton associations
have been recognized.
-	Sample S126
Aspidolithus parous (Stradner) Noël
Braarudosphaera bigelowi (Gran & Braarud) Deflandre
Cñbrosphaerella ehrenbergii (Arkhangelsky) Deflandre
Eijfellithus sp.
Eprolithus floralis (Stradner)
Lucianorhabdus arcuatus Forchheimer
Micula concava (Stradner) Verbeek
Micula decussata Vekshina
Watznaueria bamesae (Black) Perch-Nielsen
Watznaueria biporta Bukry
Watznaueria communis Bukry
Watznaueria sp.
Age: Early Campanian
Biozone: CC18
-	Sample S128
Arkhangelskiella cymbiformis Vekshina
Aspidolithus parcus (Stradner) Noël
Calculites obscurus (Deflandre) Prins & Sissingh
Cribrosphaerella ehrenbergii (Arkhangelsky) Deflandre
Cyclagelosphaera margerelii Noël
Eiffellithus eximius (Stover) Perch-Nielsen
Lithraphidites carniolensis Deflandre
Lucianorhabdus cayeuxii Deflandre
Manivitella pemmatoidea (Deflandre) Thierstein
Micula concava (Stradner) Verbeek
Micula decussata Vekshina
Prediscosphaera cretacea (Arkhangelsky) Gartner
Quadrum gothicum (Deflandre) Prins & Perch-Nielsen
Quadrum trifidum (Stradner) Prins & Perch-Nielsen
Reinhardtites authophorus (Deflandre) Perch-Nielsen
Stradneria crenulata (Bramlette & Martini) Noël
Tranolithus exiguus Stover
Tranolithus phacelosus Stover
Watznaueria barnesae (Black) Perch-Nielsen
Watznaueria biporta Bukry
Watznaueria communis Reinhardt
Age: Middle Campanian
B i o z o n e: NCI9b Watznaueria spp.
-	Sample S130
Acuturris scotus (Risatti) Wind & Wise
Calculites obscurus (Deflandre) Prins & Sissingh
Integrated biostratigraphy of the Novi Pazar_5
Cribrosphaerella ehrenbergii (Arkhangelsky) Deflandrecay*
Lucianorhabdus maleformis Reinhardt
Micula concava (Stradner) Verbeek
Micula decussata Vekshina
Quadrum gothicum (Deflandre) Prins & Perch-Nielsen
Stradneria crenulata (Bramlette & Martini) Noël
Watznaueria barnesae (Black) Perch-Nielsen
Watznaueria spp.
Age: Late Campanian
Biozone: NC20
-	Sample S131
Biscutum constans (Gorka) Black
Calculites obscurus (Deflandre) Prins & Sissingh
Ceratolithoides aculeus (Stradner) Prins & Sissingh <90°
Cribrosphaerella ehrenbergii (Arkhangelsky) Deflandre
Cyclagelosphaera margerelii Noël
Eiffellithus turriseiffelii (Deflandre) Reinhardt
Lucianorhabdus cayeuxi Deflandre
Lucianorhabdus maleformis Reinhardt
Micula concava (Stradner) Verbeek
Micula decussata Vekshina
Prediscosphaera spinosa (Bramlette & Martini) Gartner
Quadrum gothicum (Deflandre) Prins & Perch-Nielsen
Reinhardtites levis Prins & Sissingh
Watznaueria barnesae (Black) Perch-Nielsen
Watznaueria biporta Bukry
Age: Campanian/basalMaastrichtian
Biozone: top NC20
-	Sample S133
Arkhangelskiella cymbiformis Vekshina
Arkhangelskiella specillata Vekshina
Biscutum constans (Gorka) Black
Braarudosphaera bigelowi (Gran & Braarud) Deflandre
Cribrosphaerella ehrenbergii (Arkhangelsky) Deflandre
Cyclagelosphaera margerelii Noël
Eijfellithus eximius (Stover) Perch-Nielsen
Micula concava (Stradner) Verbeek
Micula decussata Vekshina
Stradneria crenulata (Bramlette & Martini) Noel
Watznaueria barnesae (Black) Perch-Nielsen
Watznaueria biporta Bukry
Age: Early Maastrichtian
Biozone: NC21
-	Sample S134
Arkhangelskiella cymbiformis Vekshina
Arkhangelskiella specillata Vekshina
238_Paola de Capoa, Svetlana Polavder & Rajka Radoičić
Aspidolithus parcus constrictus (Hattner et al.) Perch-Nielsen
Braarudosphaera bigelowi (Gran & Braarud) Deflandre
Ceratolithoides aculeus (Stradner) Prins & Sissingh <90°
Calculites obscurus (Deflandre) Prins & Sissingh
Cribrosphaerella ehrenbergii (Arkhangelsky) Deflandre
Cyclagelosphaera margerelii Noël
Eiffellithus eximius (Stover) Perch-Nielsen
Lucianorhabdus cayeuxi Deflandre
Lucianorhabdus melaformis Reinhardt
Micula concava (Stradner) Verbeek
Micula decussata Vekshina
Micula praemura (Burkry) Stradner & Steinmetz
Parhabdolithus embergeri (Noel) Stradner
Prediscosphaera cretacea (Arkhangelsky) Gartner
Stradneria crenulata (Bramlette & Martini) Noël
Thoracosphaera spp.
Age: Early Maastrichtian
Biozone: NC21
-	Sample S135
Arkhangelskiella cymbiformis Vekshina
Aspidolithus parcus (Stradner) Noël
Ceratolithoides aculeus (Stradner) Prins & Sissingh
Cribrosphaerella ehrenbergii (Arkhangelsky) Deflandre
Cyclagelosphaera margerelii Noël
Eiffellithus eximius (Stover) Perch-Nielsen
Eiffellithus turriseiffelii (Deflandre) Reinhardt
Kamptnerius magnificus Deflandre
Lithraphidites camiolensis Deflandre
Lithraphidites praequadratus Roth
Lucianorhabdus cayeuxi Deflandre
Manivitella pemmatoidea (Deflandre) Thierstein
Microrhabdulus decoratus (Deflandre)
Micula concava (Stradner) Verbeek
Micula decussata Vekshina
Parhabdolithus embergeri (Noël) Stradner
Quadrum trifidum (Stradner) Prins & Perch-Nielsen
Reinhardtites levis Prins & Sissingh
Stradneria crenulata (Bramlette & Martini) Noël
Tranolithus gabalus Stover
Watznaueria barnesae (Black) Perch-Nielsen
Watznaueria biporta Bukry
Age: Early Maastrichtian
Biozone: NC21
-	Sample S137
Arkhangelskiella cymbiformis Vekshina
Arkhangelskiella specillata Vekshina
Braarudosphaera bigelowi (Gran & Braarud) Deflandre
Integrated biostratigraphy of the Novi Pazar_7
Cribrosphaerella ehrenbergii (Arkhangelsky) Deflandre
Cyclagelosphaera margerelii Noël
Eiffellithus turriseiffelii (Deflandre) Reinhardt
Lithraphidites praequadratus Roth
Lucianorhabdus cayeuxii Deflandre
Lucianorhabdus maleformis Reinhardt
Micula concava (Stradner) Verbeek
Micula decussata Vekshina
Micula praemura (Bukry) Stradner & Steinmetz
Prediscosphaera cretacea (Arkhangelsky) Gartner
Watznaueria barnesae (Black) Perch-Nielsen
Watznaueria biporta Bukry
Age: Middle? Maastrichtian
Biozone: NC21
Conclusions
The obtained nannoplankton data agree with biostratigraphic evidence coming
from benthonic and planktonic forams. Particularly, calcareous nannofossils confirm
the Campanian/Maastrichtian boundary below the breccia level with Siderolites cal-
citrapoides. The upper part of the studied sequence, from sample S131 to S135, has
been attributed to Early Maastrichtian. The uppermost studied sample (S137, few
tens m up to S135) bears nannofossils of Middle Maastrichtian. His stratigraphie
position, below the upper part of the preflysch sequence, indicates that the flysch
of the studied area must be post-Maastrichtian in the age (according to Petrovič
& Jankičević, 1988, thickness of preflysch sequence is estimated 350-380 m).
This consideration is supported by calcareous nannoplankton indicating Middle
Eocene age of some samples coming from the flysch of Novi Pazar area (de Capoa
& Radoičić, in preparation). The first attempt to apply integral biostratigraphy
(PFZ, NPZ) in Campanian-Maastrichtian succession of the Vardar Zone has given the
results which encourage a detailed multidisciplinar study (PFZ, NPZ, magnetostrati-
graphy) of these sedimentary rocks.
240_Paola de Capoa, Svetlana Polavder & Rajka Radoičić
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