The Paleozoic conglomerate at Podlipoglav in the transitional area between the External and Internal Dinarides of Slovenia contains limestone pebbles that have been examined micropaleontologically. The recovered conodont faunas are marked by the obvious absence of shallow-water taxa. The Lower- to Middle Devonian faunas are characterized by relatively abundant polygnathids that are assigned to the Emsian- and early Eifelian excavatus- othoperbonus, laticostatus and costatus Zones. The Pennsylvanian conodont faunas contain relatively deep-water Neolochriea or gondolellids indicating an early Bashkirian and Moscovian age. A presence of the radiolarian species Pseudoalbaillella nodosa suggests a deep-water setting during the early Moscovian and it is the oldest yet-reported albaillellid finding in Central Europe.
COBISS.SI-ID: 17748483
Work focuses on Praprotna draga, which is one of the largest glaciokarst depressions in the Snežnik Mountain (Dinaric karst). The slopes of the depression are characterized by moraine morphology and alluvial fans are filling its entire floor. We present the results on the thickness, origin and age of the sediment infill using a complementary geomorphological, sedimentological, geophysical and dating approach. Distribution of moraines point to two glacial advances that we associated with two main alluvial fan aggradation phases recognized using the electrical resistivity tomography measurements. Cosmogenic 36Cl analysis on the youngest alluvial deposits suggests an age of 12.3 ± 1.7 ka. We propose that the youngest alluvial deposition in Praprotna draga took place after the glacier retreat during the paraglacial period.
COBISS.SI-ID: 69045346
Knowledge about the crustal thickness is one of the key elements in the reconstruction of the regional tectonic history. The Dinaric mountain belt is one of the most enigmatic segments of the Alpine-Mediterranean collision zone, characterized by large variations in crustal thickness and not studied sufficiently. We present a new Moho depth map for the wider Dinarides region which was created using teleseismic earthquake recordings from 87 seismic stations in the region. Teleseismic data were analyzed using the receiver function method to extract converted P to S waves. The resulting Moho topography fits well within a structural framework comprising a thicker crust under the Dinarides, which gradually becomes thinner toward the Pannonian and Adriatic domains. The profiles crossing the NW Dinarides are marked by a relatively sharp decrease in crustal thickness north of the main thrust front. This transition is followed by significant crustal thinning toward the Pannonian basin. The Moho lies the deepest in the central and southern Dinarides, at depths of over 55 km. Also here we observe a jump in the crustal thickness when transitioning toward the Internal Dinarides, which hints at possible underthrusting (or subduction) of the Adria plate. Moho depths in the transition zone toward the Pannonian basin vary between 25 and 35 km. In the Adriatic domain, we find crustal thickness ranging from 30 km to more than 45 km around the Central Adriatic islands.
COBISS.SI-ID: 1558110
Debris floods can cause large economic damage and endanger human lives. This paper presents an extreme May 2018 debris flood that occurred in northern Slovenia near the Krvavec ski resort and caused large economic damage. The debris flood was initiated by an extreme rainfall event with a return period of over 50 years. There were large differences in the measured rainfall amounts using different equipment. The estimated volume of the debris material during the event was 4000 m3 /km2 for the Brezovški graben. In order to mitigate the risk due to future debris flood and debris flow events, a check is planned to be constructed. The part of the design process is presented in this paper. Additionally, RAMMS model was used to validate the empirical equations that were used in the process of the check dam stability design. The model was calibrated using information about the deposition area. Two adjacent torrents were modelled, and we were not able to find a common RAMMS parameter set that would yield adequate simulation performance in both cases
COBISS.SI-ID: 9010529
The article describes the foraminiferal association from the Khodz group on the Russian side of the Caucasus. The association is unique as it contains very diverse and numerous trochospiral involutinid foraminifera, as opposed to very few shallow-marine porcelain species characteristics of Western Neotethys. The reason for the differences is probably the high paleogeographic latitude. The high diversity of trochospiral involutinids is interesting from the point of view of mass extinction on the Triassic-Jurassic boundary, which is thought to have been responsible for the acidification of the seas and oceans due to intense volcanism at the time. The event was survived by most species of trochospiral involutinids, although they have aragonite tests and should be among the most affected groups. It is suggested that these and similar types of unfavorable conditions have survived in higher latitudes and / or deeper waters. During the early Jurassic recovery, they repopulated subtropical and tropical areas.
COBISS.SI-ID: 13575427