1,720,972 research outputs found
Paleontological evidence of Paleogene transgression on Adriatic carbonate platform
No full textCosovic V., Aloncic D.B., Koic M., Marjanac T., Moro A., Gusic Ivan, Jelaska Vladimir. Paleontological evidence of Paleogene transgression on Adriatic carbonate platform. In: Géologie Méditerranéenne. Tome 21, numéro 3-4, 1994. Perimediterranean carbonate platforms. First International Meeting. Marseille – France (5-8 septembre 1994) sous la direction de Jean-Pierre Masse. pp. 49-53
Rudists and dinosaur footprints-mutual relationship within mud-supported Upper Cenomanian peritidal limestones of Istria, Croatia
No full textThe Colli Berici
No full textThe paper delas with the stratigraphical setting of the Colli Berici. After the geological and stratigraphical setting of the area, a detailed biostratigraphical setting of the Eocene successions is presented. The stops of the filed trips organised within the last meeting of the IGCP393 are also described and illustrated
The Upper Cretaceous geodynamic evolution of the Adriatic-Dinaric carbonate platform(s)
No full textJelaska Vladimir, Gusic Ivan, Jurkovšek Bogdan, Ogorelec Bojan, Cosovic V., Sribar L., Toman M. The Upper Cretaceous geodynamic evolution of the Adriatic-Dinaric carbonate platform(s). In: Géologie Méditerranéenne. Tome 21, numéro 3-4, 1994. Perimediterranean carbonate platforms. First International Meeting. Marseille – France (5-8 septembre 1994) sous la direction de Jean-Pierre Masse. pp. 89-91
New Cretaceous paleomagnetic results from the foreland of the Southern Alps and the refined apparent polar wander path for stable Adria
No full textThe central-western and the eastern Southern Alps are separated by the triangular shaped Adige
embayment, which belongs to stable Adria and was the site of pelagic sedimentation from the Tithonian
through Maastrichtian. The first part of this study presents paleomagnetic results from the Tithonian–
Cenomanian Biancone and Turonian–Maastrichtian Scaglia Rossa formations sampled at 33 geographically
distributed and biostratigraphically dated localities.
The new and high quality paleomagnetic results from the Adige embayment are then combined with coeval
paleomagnetic directions from autochthonous Istria (Márton et al., 2008), which also belongs to stable Adria.
The combined data set (which for the Late Albian–Maastrichtian time period is constructed similarly to the
synthetic African curve by Besse and Courtillot, 2002, 2003) reveals an important tectonic event (Late
Aptian–Early Albian) characterized by 20° CCW rotation and sedimentary hiatus.
Comparison between paleomagnetic declinations/inclinations expected in an African framework (i.e. with
the assumption that Adria is still an African promontory) leads to the following conclusions. The timedistributed
Tithonian and Berriasian (150–135 Ma) paleomagnetic directions exhibit the “African hairpin”
with an inclination minimum and a sudden change from CW to CCW rotation at 145 Ma. Concerning the
younger ages, the declinations for Adria continue to follow the African trend of CCW rotation till the end of
Cretaceous. However, the Tithonian–Maastrichtian declination curve for stable Adria is displaced by 10° from
the “African” curve as a result of two rotations. The first, an about 20° CW rotation of Adria with respect to
Africa took place between the Maastrichtian and the mid-Eocene. During this time the orientation of Adria
remained the same, while Africa continued its CCW rotation. The younger rotation (30°CCW) changed the
orientation of Adria relative to Africa as well as to the present North
Depositional environments of Upper Cenomanian limestones with rudists and dinosaur footprints, Istria, Croatia
No full textDifferences and similarities of the Eocene to recent Sphaerogypsina tests collected from the Pannonian basin to the Adriatic Sea
No full textMicrofauna and nannoplankton below the Paleocene/Eocene transition in hemipelagic sediments at the southernslope of Mt. Nanos (NW part of the PaleogeneAdriatic carbonate platform, Slovenia)
No full textThis paper describes deeper water clastic to hemipelagic sediments from the Adriatic microcontinent, at the contact zone between the Adriatic and Dinaric carbonate platforms. The flysch section from Mt. Nanos contains a sedimentary sequence deposited close to the Paleocene/Eocene boundary. We dated this section biostratigraphically, reconstructed the paleoenvironments, and established a correlation with the northern part of the central Tethys. Samples were studied for calcareous nannoplankton, planktonic foraminifera, small and large benthic foraminifera, and ostracods. Calcareous nannoplankton assemblages of the Nanos section belong to
the Discoaster multiradiatus zone NP 9 in the uppermost Paleocene. Planktonic foraminiferal assemblages allow the assignment to the biozone Morozovella velascoensis (P 5) in the uppermost Paleocene as well. Both nannoplankton and planktonic foraminifera are consistent with a period of global warming in the latest Paleocene just below the PETM. Nannoplankton assemblages are relatively rich in discoasters which suggests that they were deposited in a warm oligotrophic environment. Planktonic foraminifera indicate
oligotrophic habitats, warm surface water and a well stratified water column with stable thermocline. Predominance of planktonic
foraminiferal species and the presence of the deep-sea ostracod species Cytherella sp suggest sedimentation in deeper opensea
environments. A peculiar sphaerical benthic foraminifer Aberisphaera sp., which has been found in the NE Himalayas and in the Nanos section, possibly indicates a connection between these two geographically remote areas
A new dinosaur tracksite in the Cenomanian of Istria, Croatia
No full textThe new locality with dinosaur footprints has been discovered in the port of Karigador village in Istria. The site is situated in peritidal limestones of late Cenomanian age. The track-bearing horizon is bioclastic wackestone-packestone deposited in a subtidal environment. A single trackway which consist of 28 pairs of footprints and a group of 4 track pairs was registered at the site. Trackway belong to quadrupedal dinosaurs and are assigned to sauropods. Oval-circular shaped footprints represent the pedal prints and horseshoe semicircular shaped ones represent the manus prints. The trackway is of narrow-gauge type with outwardly rotated manus and pedal prints. The average lenght of the pedal prints is 33 cm what indicates the lenght of the individual of app. 10 m. The preferred gait of the individual was a normal walk, taking normal strides with a speed of around 3 km/h. The trackmaker was a non-titanosaurian sauropod. Together with the other late Cenomanian sauropod localities in Istria (Fenoliga and Ladin Gaj), the Karigador site represent an example of sauropod tracks in a carbonate platform environment which can be assigned to Brontopodus ichnofacies
Biostratigraphy and palaeoecology at the Middle-Upper Eocene boundary: the Venetian area
No full textGeneral geological and paleontological description of the Colli Berici area. Some localities are described as stops of the field-trip organized for the 5th meeting of the IUGS-UNESCO-IGCP 393
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