The Kvarner area is located in the Northern Adriatic Sea, between the south-east Istrian Swell, the Rijeka coast and the Croatian sea boundary. It includes several islands, representing the ...outcropping parts of anticlines produced by the compressional/transpressional deformation of the External Dinaric Chain. An extensive 2D seismic dataset, acquired for hydrocarbon exploration and calibrated by wells, allowed us to reconstruct the time structural maps in Kvarner and unravel its regional fault pattern. The Dinaric compressional phase affected the area in the Late Cretaceous, with both thin- and thick-skinned tectonics related to Adriatic Carbonate Platform (AdCP) succession rigidity. Structural highs facing the Kvarner offshore from the Istrian inland continue through the Kvarner and Rijeka bays and outcrop in the islands. These anticlines, originating from the pre-Messinian Dinaric thrust system, were reactivated by the post-Messinian transpression, as testified by flower structures. Several sharp valleys represent two main low structural lineaments, developed between the anticlines and partially incised during the Messinian. They were observed throughout the entire studied area, specifically in the western part of the bays, where the lineament continues through the valleys and penetrates the SW-Istria land. Data show that the Messinian erosional effect and sedimentation patterns were influenced and driven by the morphology of older structures produced by the Dinaric compressional phase.
•Thin-and thick-skinned tectonics is present in the External Dinarides.•Structures of Kvarner Islands continue in the Istrian peninsula through Kvarner offshore.•Sharp valleys are filled by a prograding clinoform system bounded by two major unconformities.•Older tectonic structures played an important role in recent geodynamics of External Dinarides.
Istrian Flysch was deposited during the Eocene in the Dinaric foredeep and is composed of hemipelagic marls and various gravity flow deposits. The latter are predominantly 5-40 cm thick turbidites, ...developed mostly as laminated and cross-rippled sandstone beds (Tb-e, Tc-e and Td-e Bouma sequences). In addition to the turbidites, there are deposits characterized by a significant thickness, occasionally more than 10 m, described as complex (bipartite) megabeds. The megabeds are composed of debrites in the lower part (Division I), and high-density turbidites in the upper part (Division II). The distinct clast composition of each megabed indicates that the lithoclasts were derived from tectonically active slopes and fault scarps along which collapses of the different parts of the Cretaceous to Palaeogene neritic carbonate succession, (that underlie the Flysch), occurred. The Division II deposits are well cemented, normally graded calcirudite/calcarenites composed mostly of orthophragminids, nummulitids, and red algae, originating from outer ramp environments. Redeposited marl, observed in the matrix of the debrites and as intraclasts in some megabeds, implies that the collapses along the synsedimentary fault scarps and steep slopes also occurred within the foredeep itself, during the rapid tectono-sedimentary evolution of the Dinaric foreland basin.
The provenance of the Upper Miocene sandstones from the Sava and Drava depressions of the North Croatian Basin was investigated using petrographic, geochemical, and heavy mineral analyses, including ...Raman spectroscopy. The study of these sandstones, which represent important oil and gas reservoirs in Croatia, allowed reconstruction of the Late Miocene source-to-sink model of the Lake Pannon drainage system and the evolution of the southwestern Pannonian Basin. The studied feldspatho-litho-quartzose sandstones consist of a mixture of sedimentary, metamorphic, and igneous detritus. Heavy-mineral assemblages are dominated by almandine-rich garnet with apatite, epidote, tourmaline, rutile, zircon, staurolite, and zoisite, indicative of low to medium-grade metamorphic source rocks. Higher concentrations of Ca and Mg than in the Upper Continental Crust standard (UCC) additionally reflect the abundance of limestone and dolostone rock fragments as well as carbonate cement. Geochemical compositional variations between sandstone samples from the Sava and Drava depressions primarily stem from diagenetic processes. CIX and alpha values indicate only minor weathering. Compositional features indicate an orogenic source located in the Eastern Alps and primarily represented by Austroalpine and Penninic nappes. This research offers a novel perspective to distinguish the Upper Miocene reservoirs from other sedimentary units within the basin, contributing to a more comprehensive understanding of the regional geological dynamics and supporting future exploration projects also related to energy transition.
Vranić site is a sand quarry that is located on the southern foothills of Papuk Mountain. From bottom to top of the succession, three sedimentary units have been recognized as: Unit 1 containing ...massive sand with scattered gravel-sized clasts, marl cobbles and boulders, and abundant marine mammal and fish fossils; Unit 2 consisting of sand intercalated with silt, clay and gravel, which may be horizontally bedded; and Unit 3, which is an erosionally-based lenticular matrix to clast-supported structureless gravel. The basal part of Unit 1 shows numerous reworked skeletal remains of Miocene marine mammals. Cosmogenic radionuclides constrain the age of burial of Unit 1 to 895 ± 211 ka, while the source area of Unit 1 had a quick denudation.
The massive sands deposited on the slopes of Papuk Mountain were vulnerable to erosion due to the absence of clay. Heavy rainfall or water from snow melting created flash floods that infiltrated the sands, thereby causing slope destabilization and deformation. This process led to slumps that were transformed into a sandy debris flow. This sediment was probably deposited during the interglacial marine isotope age (MIS) 21 period when the scarce vegetation and a warmer climate favored the melting of permafrost ice and consequently triggered slope movements during MIS 22. The reworked skeletal material sampled at the Vranić site comprises fossilized fish along with mammal bones and teeth. Thus, the Vranić site represents an important site for cetacean fossil remains and serves as an important data source for marine life in the Central Paratethys.
Virtual Sociability Peračković, Krešimir; Petrinjak, Hrvoje
Disputatio philosophica : international journal on philosophy and religion,
02/2022, Volume:
23, Issue:
1
Journal Article
Since the 2020 COVID-19 pandemic, the term virtual has become one of the
most used in media and everyday speech. There is an increasing amount of research done on this new reality, and the results ...are still to be published. However, it is insufficiently known in scientific periodicals
that the concept of virtual reality, enabled by information technology,
has existed in the sociological literature since the 1990s when Castells introduced it to the theory of network society. Therefore, the paper's primary goal is to consider basic concepts such as virtual reality, real virtuality, virtual communities, virtual sociability, and networked individualism. We will also briefly look at the forgotten classical notion of community as a fundamental form of sociability defined by the sociologist F. Tönnies, which re-enters the focus of scientific interest, without a clear and sociologically known classical definition. Starting from this framework, the paper examines the key question of whether these new virtual communities are indeed communities
in the classical sense of the term or whether it is a form of networked
individualism.
Pojam virtualno je pojavom COVID-19 pandemije 2020., postao jedan od najkorištenijih u medijskom prostoru i u govoru svakodnevice. Sve je više i istraživanja o novoj stvarnosti, čiji rezultati se tek očekuju. Međutim, nedovoljno je poznato u domaćoj znanstvenoj periodici da koncept virtualne stvarnosti koju omogućava informacijska tehnologija, postoji u sociološkoj literaturi od devedesetih godina, kada ga u teoriju umreženog društva uvodi Castells. Stoga je glavni cilj rada prikazati i razmotriti neke osnovne pojmove kao npr. virtualna stvarnost, stvarna virtualnost, virtualne zajednice, virtualna društvenost i umreženi individualizam. Kratko ćemo se osvrnuti i na zaboravljeni klasični pojam zajednice kao temeljne forme društvenosti definirane od sociologa F. Tönniesa, koji ponovo ulazi u fokus znanstvenog interesa, bez jasne a u sociologiji poznate klasične definicije. Polazeći od tog okvira, u radu se propituje ključno pitanje,
jesu li te nove virtualne zajednice uistinu zajednice u klasičnom smislu značenja pojma, ili je riječ o nekom obliku umreženog individualizma.
Pojam virtualno je pojavom COVID-19 pandemije 2020., postao jedan od najkorištenijih u medijskom prostoru i u govoru svakodnevice. Sve je više i istraživanja o novoj stvarnosti, čiji rezultati se tek ...očekuju. Međutim, nedovoljno je poznato u domaćoj znanstvenoj periodici da koncept virtualne stvarnosti koju omogućava informacijska tehnologija, postoji u sociološkoj literaturi od devedesetih godina, kada ga u teoriju umreženog društva uvodi Castells. Stoga je glavni cilj rada prikazati i razmotriti neke osnovne pojmove kao npr. virtualna stvarnost, stvarna virtualnost, virtualne zajednice, virtualna društvenost i umreženi individualizam. Kratko ćemo se osvrnuti i na zaboravljeni klasični pojam zajednice kao temeljne forme društvenosti definirane od sociologa F. Tönniesa, koji ponovo ulazi u fokus znanstvenog interesa, bez jasne a u sociologiji poznate klasične definicije. Polazeći od tog okvira, u radu se propituje ključno pitanje, jesu li te nove virtualne zajednice uistinu zajednice u klasičnom smislu značenja pojma, ili je riječ o nekom obliku umreženog individualizma.
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