The Una River Valley has complex characteristics defined by the interchange of gorges, basins and valley extensions. The river has adapted itself to the primary geologic structure and to the activity ...of tectonic movements. The longitudinal profile of the river is the result of numerous rapids, cascades and waterfalls, the formation of which is connected with calcareous sinter accumulation. Morphogenetic analysis has shown that a series of very attractive and strange relief forms is being formed in the riverbed of the River Una such as calcareous sinter barriers, sinter riverbeds, calcareous sinter islands and caves.
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IZUM, KILJ, NUK, PILJ, PNG, SAZU, UL, UM, UPUK
An updated review of the available geothermal data for Slovenia is presented. In order to evaluate the main tectono-thermal characteristics, an overview of three most relevant geophysical parameters, ...namely heat flow density, the distribution of shallow seismicity, and the depth of the Mohorovičić boundary, over a much larger, so-called Circum-Adriatic region, extending from the Tyrrhenian Sea to the Pannonian basin, is first given. The pattern and values of these parameters in the Adriatic Sea and just outside this area differ significantly from those of the outlying environment, and thus correspond roughly to the area known as the Adriatic microplate.
Slovenia is situated at the northern rim of this geophysically diversified region. In the western part of the country, where the Dinarides and Southern Alps are situated, a good correlation has been found between the deeply lying Mohorovičić discontinuity, the low heat flow density, low temperatures at depth and a large negative Bouguer anomaly, whereas in the eastern part of Slovenia (the Pannonian basin) the rising mantle-crust boundary is associated with the high heat flow density, high temperatures at depth and a positive Bouguer anomaly. At the transition zone between the Southern Alps and the Dinarides, along the area of changing crustal thickness, a shallow seismicity belt is indicated. The only DSS profile in Slovenia, crossing the country in a SW-NE direction from Pula (Croatia) to Maribor, reflects the tectonic relations and seismicity between the Dinarides and the Pannonian basin.
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An abstract of an article on geology is presented. Kovacs et al attempt to reveal the geodynamic link between Paleogene-Early Miocene igneous rocks of the Mid-Hungarian zone and those of the Alps and ...Dinarides.
Peak acceleration attenuation relations for horizontal and vertical components are presented for the Dinarides region, based on 145 3-component accelerograms related to 46 earthquakes with local ...magnitudes of 4.5 or greater and with epicentral distances of less than 200 km as recorded on 39 recording sites in the greater Dinarides region. The attenuation functions were obtained by two-stage stratified regression on the local magnitude and epicentral distance as independent variables. The predicted peak acceleration values within the distance range covered by the data are comparable to the ones obtained for stiff-soil or rock sites when selected reference relations are used. The rather large average residuals are caused mostly by the lack of information on local site conditions and by the use of epicentral distance instead of fault distance.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
In the Western Dinarides the Lower Liassic carbonates are underlain by Upper Triassic "Hauptdolomit", whereas the first appearance of the foraminiferOrbitopsella praecursor (Gümbel) marks the ...beginning of the Middle Liassic. Their composition, observed at several localities in Western Croatia, shows a correlation of sedimentation events, which took place during Early Liassic on the Adriatic-Dinaridic carbonate platform. Facies variability is interpreted as result of autocyclic sedimentary processes on which the carbonate platform reacted by periodical oscillations of sea-bottom near the fair-weather wavebase. As a consequence, the Lower Liassic carbonate successions in the Dinarides is characterized by stacking of two main types of coarsening-upward parasequences: (1) the basal part of the Lower Liassic succession is represented by parasequences composed of mudstones or pelletal-bioclastic wackestones as their lower members, and peloidal-bioclastic wackestone/packstones to grain-stones as their upper members; and (2) the upper part of the Lower Liassic succession with parasequences consisting of mudstones or pelletal-bioclastic wackestones overlain by ooid grainstones. Judging from the composition of parasequences and thickness relations of their members, the first type is interpreted to comprise late transgressive system tract (ITST) and/or early highstand system tract (eHST), while the second type corresponds to a late highstand system tract (1HST) and/or early lowstand system tract (eLST) of a third-order sequence.PUBLICATION ABSTRACT
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Bored clasts occur in Eocene conglomerates deposited in the upper shoreface and beachface settings of the Dinaric foreland basin. The trace fossil assemblage consists ofGastrochaenolites, Trypanites, ...and possibly some other ichnotaxa and may be compared to theTrypanites Ichnofacies. The preservation characteristics of the borings reflect many stages of colonisation/boring and abrasion. The removal of shells of the boring bivalves, the different depths of the abrasional truncation of borings, and the predominant preservation of the largest excavations (Gastrochaenolites) in the ichnocoenosis are related to repeated phases of abrasion, caused by the mobility of clasts. Coastal gravel is a specific variant of hard substrates, whose mobility controls the colonisation of borers, the type of assemblage and its preservation potential.PUBLICATION ABSTRACT
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Mesozoic and Cenozoic rocks were studied in three tectonic units in southern Albania. The area belongs to the Ionian Zone, Outer Albanides. Rock magnetic investigations, comprising alternating field ...and thermal cleaning, stepwise acquisition of isothermal remanent magnetization and hysteresis experiments were carried out. They established magnetite and titanomagnetite as the main carriers of the natural remanent magnetization. In the high field behaviour, haematite and goethite can also be seen. Several fold tests on the site and on a regional scale indicate that the directions are characteristic. These directions prove a general clockwise rotation of about 40° since the Tortonian. Using all available palaeomagnetic data from Albania, individual movements of the different tectonic units within the Inner and Outer Albanides can be deduced. This is also valid for the Albanian Alps, which are understood to be the southernmost part of the Dinarides.
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Based on the characteristics of individual species, the generic characteristics of Palaeodasycladus have been determined and enlarged. P. mediterraneus (PIA, 1920) 1927 comprises a broad array of ...varieties that have been taxonomically distinguished on the basis of the variable shape of primary and secondary branches and the way in which the secondaries emerge. The following varieties are represented: P. mediterraneus (PIA, 1920) 1927 var. mediterraneus, P. mediterraneus var. heraki (SOKAC & NIKLER, 1966) n. comb., P. mediterraneus var. illyricus (SOKAC & NIKLER, 1966) n. comb., P. mediterraneus var. gracilis (CROS & LEMOINE, 1967 ex GRANIER & DELOFFRE, 1993) n. stat., P. mediterraneus var. elongatulus PRATURLON, 1966, and P. mediterraneus var. calciticus n. var., and are characterised by specific skeletal form and easily recognisable calcification pattern. Also, the generic assignment of P. barrabei LEBOUCHÉ & LEMOINE, 1963 ex GRANIER & DELOFFRE, 1993 has been confirmed, in spite of its recent transferral to Eodasycladus by BARATTOLO et al. (1994). The following new species have been described: Palaeodasycladus alanensis n. sp., characterised by broadened, bowl-shaped or bushy swollen primary branches; P. multiporus n. sp., characterised by numerous higher-order branches on each primary branch; P. benceki n. sp., with very large primary branches with extremely variable distal ends; and P. asteriscus n. sp., with loosely spaced whorls and variously directed secondary branches, often growing in opposite directions from the same primary branch. Lower Liassic species, previously ascribed to Fanesella, F. dolomitica and F. anae, have also been assigned to Palaeodasycladus with enlarged generic characteristics and are named, consequently, Palaeodasycladus dolomiticus (CROS & LEMOINE, 1966) n. comb. and P. anae (SOKAC, 1988) n. comb., respectively. Fanesella sokaci BARATTOLO & BIGOZZI, 1996 is considered to be a younger synonym of P. dolomiticus. Phylogenetic relationships between various taxa have also been considered and a phyletic lineage P. barrabei - P. alanensis - P. benceki has been shown to exist. As regards the relationship between Palaeodasycladus and Eodasycladus, the latter has been shown to have evolved directly from P. barrabei by enlarged and more pronounced bubble-shaped swelling of one of the secondary branches, which thus becomes a “sporangia-bearing” organ. Also, a new species tentatively assigned to the genus Selliporella, Selliporella? problematica n. sp., has been described. From its morphological characteristics it represents an intermediate form, and a phylogenetic link between Liassic Palaeodasycladus and Middle Jurassic Selliporella. Finally, a new species, Humiella japodica n. sp. has been described, thereby enlarging the stratigraphic range of the genus Humiella into the Lower Liassic.
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