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FLYSCH SEDIMENTS BETWEEN SUHAREKA AND BAJICA (KOSOVA)
Abstract
The Upper Cretaceous Flysch series between Suhareka and Bajice is developed in the psamitic and brecciaed facies . The relation between them is tectonic, but south of the area a gradual transitio n from one to the other facies has been established. Psamitic Flysch facies is characterized by a constant composition and regular graded bedding on the whole area of its distribution. It is represented by three lithogenous types: limy, sandy and conglomeratic. The limy lithogenous types : is characterized by a fairly good carbonate percentage in the whole series. It was formed by the succession of conglomerates, limy and marly sandstones, sandy limestones, limestones, lim y-marls, marls, marly-claystones and claystones. These successions are often graded. The depth of certain members range from banked to laminar. The sediments are poor in organic remains. If exist, they occur either in the conglomerates or in the limest ones. They belong the foraminifera species (Globotruncana of Campanian-Mastrichtian age has been determined in the limestones near the floor of the series). The sandy type of Flysch: has been preserved in the tectonic trough of Carraleva Mountains. The folding partly covered the ar eas prevent us to notice the relation with limy and conglomeratic lithogenous type of psam itic facies. It is most probably that the upper parts of the series are built up of the sandy type. It is mainly built up of the fine- grained aleuvrolitic, limy-clay sandstones. Those types of sediments are deposited from dense and slow turbidity currents. Conglomeratic type: is less represented in the field of the sheet Rahovec. These sediments are characterized by high carbonate content (40-60%). The basal petrographic members are either conglomerates or congl omerates limestones, limy sandstones and marly. The graded bedding is pronounced by decreasing of the gravel size going towards the top of the bed. Breccia facies of Flysch: is represented by breccias built up of fragments and partly even of blocks of Sericite, sericite-chloritic and biotito shists, marls and metamorphosed sandstones i.e. fragments of Paleozoic rocks. They are mainly cemented by sericite- chloritic and more rarely by Carbonaceo us and Siliceous basal cement. The stratification of series partly orientation of fragments caused by sliding of mud, occurrence of graded bedding, swimming of bloc ks into the other material, indicate that the series underwent some redepositions but not so far. In any case, this indicates the proximity of the source area.
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References8
Lonçareviq, Ç. (1978) – Geological mapping (1: 100 000) Appendix for map sheet Rahovec
Beak Consultant-Dr. Klaus Legler, Andreas Knobloch Dip.Geologist-2006 - The Compilation of Geoscientific Maps of Kosova, the Digital Geological Map 1: 100000
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Hazbi Shehu, Dalip Rrapaj –The Flysch Geodinamics
Dr. Milorad Angjellkoviq- Stratigraphy Yugoslavie (Paleozoik-Mezozoik)-1978
Dr. Kodra, A., Dr. Elezaj, Z.,- Geology of Kosova-2008
Roland Vinx-Gestenbestimmung im Gelande-2005
Gardin S., Marino M., Monechi S., Principi G., -Biostratigraphy and sedimentology of Cretaceous ligurid flysch-1994
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