Upper Turonian–Santonian slope limestones of the Islands of Premuda, Ist and Silba (Adriatic Coast, Croatia)
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Published:
Dec 12, 2012
Keywords:
pelagic, resedimented, limestones, slope apron, slump, rudists, Upper Turonian-Santonian, Adriatic carbonate platform
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Abstract
Upper Turonian-Santonian limestones at three island locations (Ist, Silba and Premuda) in the southwestern part of the Adriatic carbonate platform, record slope deposition based on their sedimentological and palaeontological characteristics.These Upper Cretaceous successions consist of three vertically superimposed lithotypes: (1) pelagic mudstonespackstones, (2) laminated pelagic wackestones-packstones, and (3) bioclastic floatstones-rudstones to packstonesgrainstones with fossils of shallow marine organisms.According to the proximity of the shallow water carbonate platform interior the depositional setting of the slope deposits could be identified as relatively more proximal or distal. The proximal part is characterized by non laminated pelagic limestones with resedimented bioclastic limestones, while the more distal parts have both laminated and nonlaminated pelagic limestones with rare resedimented bioclastic limestones. The resedimented bioclastic limestones represent slope apron deposits. Locally, at Premuda Island, the slope apron includes blocks of laminated pelagic limestones. The depositional environments of the Ist and Premuda profiles could be interpreted as of more distal origin, while those of the Silba profile represents a more proximal part of the slope.
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References
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MÁRTON, E., MORO, A. (2009): New palaeomagnetic results from imbricated Adria: Ist island and related areas. Geologia Croatica. 62, 2; 107-114
MÁRTON, E., ĆOSOVIĆ, V., BUCKOVIĆ, D., MORO, A. (2010): The tectonic development of the Northern Adriatic region constrained by Jurassic and Cretaceous paleomagnetic results. Tectonophysics. 490, 1-2; 93-102
MORO, A. & JELASKA, V. (1994): Upper Cretaceous peritidal deposits of Olib and Ist islands (Adriatic Sea, Croatia). Geologia Croatica, 47/1, 53-65.
MORO, A., ĆOSOVIĆ, V. (2000): The rudists of southern Istria - An example of environmentally induced succession within Santonian limestones. Rivista Italiana di paleontologia e stratigrafia. 106, 1; 59-71.
MORO, A., SKELTON, W.P. & ĆOSOVIĆ, V. (2002): Palaeoenvironmental setting of rudists in the Upper Cretaceous (Turonian-Maastrichtian) Adriatic carbonate Platform (Croatia), based on sequence stratigraphy. Cretaceous Research, 23, 489–508.
MORO, A., ĆOSOVIĆ, V. (2002): Rudists and larger benthic foraminifers as relative indicators of water depth - an example from the Istrian (Upper Cretaceous and Eocene) part of the Adriatic Carbonate Platform. Memorie della Societa Geologica Italiana. 57; 203-208
MORO, A., MEZGA, A., ĆOSOVIĆ, V., TUNIS, G., TARLAO, A. (2008): Rudists and dinosaur footprints – mutual relationship within mud-supported Upper Cenomanian peritidal limestones of Istria, Croatia. Bollettino della Societa Geologica Italiana. 127, 2; 423-428
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ROSS, D.J. & SKELTON, W.P. (1993): Rudist formations of the Cretaceous: a palaeoecological, sedimentological and stratigraphical review. Sedimentology review, 1, 73-91.
SARI, B. (2006): Upper Cretaceous planctonic foraminiferal biostratigraphy of the Bey Daglari Autochthon in the Korkuteli area, western Taurides, Turkey. Journal of Foraminiferal Research, 36(3), 241-261.
SARI, B. (2009): Planctonic foraminiferal biostratigraphy of the Coniacian- Maastrichtian sequences of the Bey Daglari Autochthon, western Taurides, Turkey: thin-section zonation. Cretaceous Research, 30, 1103-1132.
SKELTON, W.P. & GILI E. (1991): Paleoecological classification of rudist morphotypes. In: (Sladic-Trifunovic M. Ed.) First International Conference on Rudists, Proccedings, Serbian Geological Society, Belgrade, 71-86.
SPENCE, G.H. & TUCKER, M.E. (1997): Genesis of limestone megabreccias and their significance in carbonate sequence stratigraphic models: a review. Sedimentary Geology, 112, 163-193.
TARI, V. (2002): Evolution of the northern and western Dinarides: a tectonostratigraphic approach. EGS Stephan Mueller Publication Series, European Geophysical Society, 1, 1–21.
TUCKER, M. & WRIGHT, V.P. (1990): Carbonate Sedimentology. Blackwell Scientific Publications, Oxford, 482 pp.
VLAHOVIĆ, I., TIŠLJAR, J., VELIĆ, I. & MATIČEC, D. (2005): Evolution of the Adriatic Carbonate Platform: Palaeogeography, main events and depositional dynamics. Palaeogeography, Palaeoclimatology, Palaeoecology, 220, 333-360.
BRANDNER, R., FLÜGEL, E. & SENOWBARI-DARYAN, B. (1991): Microfacies of Carbonate Slope Boulders: Indicator of the Source Area (Middle Triassic: Mahlknecht Cliff, Western Dolomites). Facies, 25, 279-296.
CALVET, F. & TUCKER, M. (1988). Outer ramp cycles in the Upper Muchelkalk of the Catalan Basin, northern Spain. Sedimentary Geology, 57, 185-198.
ĆOSOVIĆ, V., BALONČIĆ, D., KOIĆ, M., MARJANAC, T., MORO, A., GUŠIĆ, I. & JELASKA, V. (1994): Paleontological evidence of Paleogene transgression on Adriatic carbonate platform. Géologie Méditerranéenne, 21, 3-4, 49–53.
DERCOURT J., RICOU L.E. WRIELYNCK B. (1993) Atlas Tethys Palaeoenvironmental Maps. Gauthier Villars, Paris.
FLÜGEL, E. (2004): Microfacies of Carbonate rocks-Analysis, Interpretation and Application. Springer, 976 pp, Berlin.
FUČEK, L., JELASKA, V., GUŠIĆ, I., PRTOLJAN, B., OŠTRIĆ, N. (1991): Padinski sedimenti uvale Brbišnica na Dugom otoku (Turonian slope deposits in the Brbišnica Cove, Dugi otok Island, Croatia). Geološki vjesnik. 44, 55-67.
FÜRSICH, F.T., WILMSEN, M., SEYED-EMAMI, K., SCHAIRER, G. & MAJIDIFARD, M.R. (2003): Platform-Basin transect of a Middle to Late Jurassic Large-Scale Carbonate Platform System (Shotori Mountiains, Tabas Area, East-Central Iran). Facies, 48, 171-198.
GILI, E., MASSE, J-P & SKELTON, W.P. (1995): Rudists as gregarious sedment dwellers, not reef-builders, on Cretaceous carbonate platforms. Palaeogeography, Palaeoclimatologgy, Palaeoecology. 118, 245-267.
GUŠIĆ, I. & JELASKA, V. (1990): Stratigrafija gornjokrednih naslaga otoka Brača u okviru geodinamske evolucije Jadranske karbonatne platforme (Upper Cretaceous stratigraphy of the Island of Brač within the geodynamic evolution of the Adriatic carbonate platform - in Croatian). Djela Jugoslavenske akademije znanosti i umjetnosti, 69, 160 pp., JAZU-IGI, Zagreb.
HERAK, M. (1986): A new concept of geotectonics of the Dinarides (Nova koncepcija geotektonike Dinarida). Acta Geologica, 16, 1-42, Zagreb.
HERAK, M. (1990): Dinaridi-mobilistički osvrt na genezu i strukturu (Dinarides-mobilistic view of the genesis and structure. Acta Geologica, 21, 35-117, Zagreb.
KAPOVIĆ, B. & BAUER, V. (1970): Sedimentološke, biofacijalne i ambijentalne karakteristike gornjokrednih naslaga otoka Premuda i Dugog Otoka (Sedimentary, biofacies and environmental characteristics of the Upper Cretaceous sediments of the Premuda Island and Dugi otok - in Croatian). Nafta, 22, 12, 561–572.
KENTER, J.A.M. (1990): Carbonate platform flanks: slope angle and sediment fabric. Sedimentology, 37, 777-794.
KORBAR, T. (2009): Orogenic evolution of the External Dinarides in the NE Adriatic region: a model constrained by tectonostratigraphy of Upper Cretaceous to Paleogene carbonates. Earth-Science Reviews, 96, 4; 296-312.
KORBAR, T.; CVETKO TEŠOVIĆ, B.; RADOVANOVIĆ, I., KRIZMANIĆ, K., STEUBER, T.; SKELTON, P.W. (2010): Campanian Pseudosabinia from the Pučišća Formation on the island of Hvar (Adriatic Sea, Croatia). Turkish Journal of Earth Sciences. 19, 6; 721-731.
MAMUŽIĆ, P. (1970): Osnovna geološka karta SFRJ: 100 000, list Molat L 33-138 (Basic geological map SFRY, sheet Molat). Savezni geološki zavod Beograd.
MAMUŽIĆ, P., SOKAČ, A. & VELIĆ, I. (1970): Osnovna geološka karta SFRJ 1:100 000, list Silba L 33-126. (Basic geological map SFRY, sheet Silba). Savezni geološki zavod Beograd.
MAMUŽIĆ, P. & SOKAČ, B. (1973): Tumač za listove Silba i Molat L 33-126, L 33 138 (Explanatory notes for sheets Silba and Molat). Savezni geološki zavod Beograd, 45 pp.
MÁRTON, E., MORO, A. (2009): New palaeomagnetic results from imbricated Adria: Ist island and related areas. Geologia Croatica. 62, 2; 107-114
MÁRTON, E., ĆOSOVIĆ, V., BUCKOVIĆ, D., MORO, A. (2010): The tectonic development of the Northern Adriatic region constrained by Jurassic and Cretaceous paleomagnetic results. Tectonophysics. 490, 1-2; 93-102
MORO, A. & JELASKA, V. (1994): Upper Cretaceous peritidal deposits of Olib and Ist islands (Adriatic Sea, Croatia). Geologia Croatica, 47/1, 53-65.
MORO, A., ĆOSOVIĆ, V. (2000): The rudists of southern Istria - An example of environmentally induced succession within Santonian limestones. Rivista Italiana di paleontologia e stratigrafia. 106, 1; 59-71.
MORO, A., SKELTON, W.P. & ĆOSOVIĆ, V. (2002): Palaeoenvironmental setting of rudists in the Upper Cretaceous (Turonian-Maastrichtian) Adriatic carbonate Platform (Croatia), based on sequence stratigraphy. Cretaceous Research, 23, 489–508.
MORO, A., ĆOSOVIĆ, V. (2002): Rudists and larger benthic foraminifers as relative indicators of water depth - an example from the Istrian (Upper Cretaceous and Eocene) part of the Adriatic Carbonate Platform. Memorie della Societa Geologica Italiana. 57; 203-208
MORO, A., MEZGA, A., ĆOSOVIĆ, V., TUNIS, G., TARLAO, A. (2008): Rudists and dinosaur footprints – mutual relationship within mud-supported Upper Cenomanian peritidal limestones of Istria, Croatia. Bollettino della Societa Geologica Italiana. 127, 2; 423-428
PREMOLI SILVA, I. & SLITER, W.V. (2002): Practical manual of Cretaceous planctonic foraminifera. International School on Planktonic Foraminifera 10 course: Cretaceous (Ed: Premoli Silva, I. & Rettori, R.). Dipartimento di Scienze della Terra, University of Perugia (Italy), 462 pp.
ROSS, D.J. & SKELTON, W.P. (1993): Rudist formations of the Cretaceous: a palaeoecological, sedimentological and stratigraphical review. Sedimentology review, 1, 73-91.
SARI, B. (2006): Upper Cretaceous planctonic foraminiferal biostratigraphy of the Bey Daglari Autochthon in the Korkuteli area, western Taurides, Turkey. Journal of Foraminiferal Research, 36(3), 241-261.
SARI, B. (2009): Planctonic foraminiferal biostratigraphy of the Coniacian- Maastrichtian sequences of the Bey Daglari Autochthon, western Taurides, Turkey: thin-section zonation. Cretaceous Research, 30, 1103-1132.
SKELTON, W.P. & GILI E. (1991): Paleoecological classification of rudist morphotypes. In: (Sladic-Trifunovic M. Ed.) First International Conference on Rudists, Proccedings, Serbian Geological Society, Belgrade, 71-86.
SPENCE, G.H. & TUCKER, M.E. (1997): Genesis of limestone megabreccias and their significance in carbonate sequence stratigraphic models: a review. Sedimentary Geology, 112, 163-193.
TARI, V. (2002): Evolution of the northern and western Dinarides: a tectonostratigraphic approach. EGS Stephan Mueller Publication Series, European Geophysical Society, 1, 1–21.
TUCKER, M. & WRIGHT, V.P. (1990): Carbonate Sedimentology. Blackwell Scientific Publications, Oxford, 482 pp.
VLAHOVIĆ, I., TIŠLJAR, J., VELIĆ, I. & MATIČEC, D. (2005): Evolution of the Adriatic Carbonate Platform: Palaeogeography, main events and depositional dynamics. Palaeogeography, Palaeoclimatology, Palaeoecology, 220, 333-360.