SW Serbia Research Articles

Punctuated, episodic magmatism and mineralization of the Rogozna skarn-hosted Au-Zn-Pb-Cu deposits revealed through high-precision U-Pb zircon geochronology

The subvolcanic regions of magmatic centers are commonly associated with alteration, mineralization, and economic ore deposits, however the duration and frequency of mineralizing pulses within the overall lifespan of these centers can be poorly defined. Therefore, models for the formation of mineral systems require more high-precision geochronology data to refine their evolutionary models. Rogozna Mountain and its eponymous magmatic complex, located in SW Serbia, hosts multiple base metal deposits associated with variable rock types and structural expressions and serves as a natural laboratory to test the span and periodicity of mineralizing events. Unlike many deposits within the Rogozna magmatic complex (RMC) and elsewhere within the broader Serbo-Macedonian magmatic and metallogenic belt represented by Pb-dominated base metal sulfides, the Rogozna mining project (composed of the Gradina, Medenovac, Copper Canyon and Šanac deposits) also hosts Au-Cu mineralization. Based on previous isotope geochemistry, a single magmatic source was responsible for the sulfide crystallization associated with Au-Cu mineralization at the Copper Canyon deposit. Therefore, a detailed determination of igneous events and their temporal relationship remains crucial for understanding the formation of the Rogozna mineralized system and its multiple deposits.High-precision chemical abrasion-isotope dilution-thermal ionization mass spectrometry (CA-ID-TIMS) U-Pb zircon geochronology of six representative samples revealed the first phase of oxidized Au-Zn mineralization at the Medenovac deposit occurred prior to 28.833 ± 0.154 Ma, based on the inclusion of mineralized skarn clasts in breccia supported by an igneous-matrix. This age indicates that mineralization and skarn formation began over 1 Myr prior to reduced Au-Cu mineralization at the Copper Canyon deposit, which occurred over a period from approximately 27.76–27.61 Ma associated with a series of texturally diverse but compositionally similar quartz latite intrusions. Trachyandesitic dykes emplaced at 25.384 ± 0.068 Ma represent the youngest igneous event in the RMC. Previous models of the formation of the Rogozna mineralized system are likely flawed by inaccurate unit classification and incomplete sampling of intrusions associated with the deposits, resulting in an unrealistically simplistic evolutionary model for mineralization, rather than a protracted history of episodic alteration and mineralization. Therefore, a reinterpreted temporal hierarchy of the RMC is proposed based on new compositional and geochronological data, defining multiple mineralization events. This work highlights the necessity of combining a robust suite of textural analyses, field relationships, and high-precision geochronology to make accurate interpretations of deposit formation.

Facies and Origin of Tufa Deposits from the Gostilje River Basin and the Sopotnica River Basin (SW Serbia)

Tufa accumulations from the Gostilje River Basin and the Sopotnica River Basin in SW Serbia are represented by both active and fossil tufa precipitates. The aim of this study is to distinguish and describe different tufa facies and to determine the environmental conditions, based on stable isotope data. We also compare our analysis with other tufa deposits in Europe. Four facies are distinguished: moss tufa, algal tufa, stromatolitic laminated tufa, and phytoclastic tufa. The dominant constituent of all tufa samples is low Mg-calcite, whereas the presence of sylvite is noted in two samples from the Gostilje River Basin. The δ18O values range from −9.07‰ to −10.79‰ (mean value: −9.81‰), while the δ13C values range from −6.50‰ to −10.34‰ (mean values −9.01‰). The stable isotope values (δ13C and δ18O) indicate that these tufa deposits were precipitated from cold, ambient water supported by CO2 of an atmospheric origin. We emphasize that this is the first data about stable isotope analyses of tufa deposits from Serbia.

From shallow-water carbonate ramp to hemipelagic deep-marine carbonate deposition: Part 2. Sirogojno (Klisura quarry) - the reference section of the Middle to Late Anisian Bulog sedimentary succession in the Inner Dinarides (SW Serbia)

The Middle to Late Anisian sedimentary succession preserved in the Klisura quarry in Sirogojno (Zlatibor Mt., SW Serbia) preserves the most complete deepening depositional history in the Inner Dinarides in Serbia. In this section, extensional tectonic movements that took place in connection with the Neo-Tethys break-up are reflected in the exceptional well-preserved record of the depositional history. The Pelsonian Ravni Formation at the base of the section is dissected by two generations of neptunian dikes formed in A) the late Pelsonian, and B) the late Illyrian. Above the late Pelsonian drowning unconformity a deepening trend of the depositional environment is mirrored by the litho- and microfacies characteristics of the more than 21 meter thick red nodular limestones of the Bulog Formation. Periods of starvation with deposition of Fossillagerstatten beds and hardgrounds mark characteristic changes in deposition. Two phases of distinct tectonic motions result in unconformities and a stepwise deepening of the depositional realm. The first and major unconformity is the drowning surface on the top of the Ravni Carbonate Ramp which led to the nearly total demise of shallow-water carbonate production, i.e. the change in deposition from shallow- to deepwater limestones. The second phase of tectonic motions is expressed by the formation of an angular unconformity after a phase of starvation in the basin. No Bulog Limestone section in the Dinarides, even not in the type region near Sarajevo, preserves all these characteristic sedimentological features as preserved in the Klisura quarry section in Sirogojno. Therefore this section is proposed to be the reference section for the sedimentological evolution and depositional environment reconstruction of the Bulog Formation in the Inner Dinarides, located in SW Serbia.

From shallow-water carbonate ramp to hemipelagic deep-marine carbonate deposition: Part 3. Lithostratigraphy and Formations of the Middle to Late Anisian Bulog sedimentary successions (Bulog Group) in the Dinarides (Bosnia and Herzegovina, Serbia, Montenegro)

In the Middle Anisian the opening of the Neo?Tethys started and this is characterized by a significant change in deposition in the whole Western Tethys Realm. In the Dinarides the Middle to Late Anisian tectonostratigraphic and basin evolution is mirrored by their sedimentary successions. In the Middle Anisian, the evolution of the shallow?water Ravni Carbonate Ramp ended relatively abrupt in the late Pelsonian: a rapid decrease of carbonate production is accompanied by formation of a horst?and?graben topography. This change is expressed by the change in deposition from shallow?water carbonates to deepwater sedimentary rocks, i.e. the Ravni Carbonate Ramp experienced a drowning. Contemporaneously neptunian dikes were formed in the underlying Ravni Formation, filled with deep?water limestones. In the grabens, near to the newly formed escarpments mass transport deposits accumulated. During the time span late Pelsonian to middle Illyrian a general deepening trend is mirrored in the sedimentological trend and the microfacies characteristics. Fossilla ? gerst?tten (mainly cephalopods) and hardgrounds occur widespread in the deeper?water red nodular limestones formed widespread above the Ravni Carbonate Ramp. Around the middle/late Illyrian boundary a second intense pulse of tectonic motions, related to the onset of volcanic activity, resulted in a crosscut of the older horst?and?graben topo graphy. A second generation of neptunian dikes was formed, the blocks tilted, and again mass transport deposits accumulated near to escarpments. The late Illyrian is characterized by an overall deepening trend expressed also in a change in the microfacies characteristics to radiolarian?rich wacke? to packstones. In cases even radio larites or silicified limestones are characteristic sedimentary rocks in late Illyrian to Ladinian times beside silicified volcano?sedimentary rocks. This paper will define the late Middle?Late Anisian red nodular limestones and related sedimentary rocks with mass transport deposits overlying the Ravni Carbonate Ramp on base of new sedimen tological, stratigraphic and micro facies data following the international rules and standards. The palaeo geographic position together with characteristic litho? and microfacies features cause the lithostratigraphic definition of the different units. Included in the newly introduced Bulog Group are: 1) the emended and formalized Bulog Formation and 2) the newly introduced and defined Komarani Formation. The type?section of the Bulog Formation east of Sarajevo (Han Vidovic, central Bosnia and Herzegovina) is revisited. The Komarani Formation is introduced with the type?section in Komarani village (Zlatar Mt. in SW Serbia). The reference sections for the Bulog Formation in SW Serbia (Klisura quarry on Zlatibor Mt.), Bosnia and Herzegovina (Pridvorica locality at Romanija Mt.) and in Montenegro (Boljevici near Virpazar), are defined. In the reference sections some characteristic lithological and microfacies features are better preserved as in the type?section and included in the emendation and formalization of the Bulog Formation. The Bulog Formation at the type?section and all reference sections are in the Late Triassic overlain by the shallow?water carbonates of the Wetterstein and Dachstein Carbonate Platforms. Age and facies equivalent red nodular limestones deposited in the outer shelf region are part of the Middle to Late Triassic Hallstatt Limestone succession. In the type?region of the Hallstatt Limestones these late Middle to Late Anisian red nodular limestones are named Schreyeralm Limestones. The name Schreyeralm Limestone was introduced earlier as the name Bulog Limestone. It is discussed if also in the Dinarides the name Schreyeralm Limestone should be used for such Anisian red nodular limestones deposited in the outer shelf region, for priority reasons, or if they should be included into the Bulog Formation to avoid confusion, for historical reasons.

From shallow-water carbonate ramp to hemipelagic deep-marine carbonate deposition: Part 1. General characteristics, microfacies and depositional history of the Middle to Late Anisian Bulog sedimentary succession in the Inner Dinarides (SW Serbia)

The opening of the Neo?Tethys started in the Middle Anisian and is recorded in the drowning succession of the shallow?water Ravni/Steinalm Carbonate Ramp and the subsequent deposition of deep?marine limestones, e.g., the red nodular limestones of the Bulog Group and equivalents. In the Inner Dinarides of southwest Serbia the continental break?up of the Neo? Tethys Ocean is characterized by the formation of a horst?and?graben topography. The change from deposition of shallow?water carbonates formed in an epicontinental sea (graben stage of the Neo?Tethys Wilson Cycle) to red nodular deep?marine limestones (Bulog Limestone) in the late Pelsonian (Middle Anisian) is relatively abrupt due to the rapid decrease of carbonate production. The deeper?water Bulog Limestone, deposited in the early stage of the passive continental margin evolution of the western Neo?Tethys can be dated by conodonts and in rare cases also by ammonoids quite exactly, and therefore it is possible to reconstruct the Pelsonian to Illyrian sedimentological evolution precisely: 1) The late Pelsonian is characterized by the drowning of the shallow?water Ravni Carbonate Ramp and a rapid deepening of the depositional realm. Extension led to the formation of neptunian dikes in the shallow?water Ravni Formation, filled with deeper?marine red micrite, and the formation of a horst?and?graben morphology. Whereas some of the horsts uplifted and emerged in the grabens near to the newly formed escarpments thick breccia successions were deposited with a fining?upward trend during the early?middle Illyrian. On top of other horsts, the grabens, or the newly formed gentle slopes red nodular limestones were deposited. In cases layers with enriched ammonoids formed (Fossillagerst?tten). 2) The early?middle Illyrian ongoing subsidence resulted in the deposition of more and more condensed red nodular limestones with hardground formation. 3) Around the middle/late Illyrian boundary a new pulse of tectonic motions resulted in the tilting of blocks, the formation of new escarpments and again mobilization of mass transport deposits. In addition, a second generation of neptunian dikes was formed. They crosscut the late Pelsonian to middle Illyrian Bulog Limestone, the Pelsonian Ravni Formation, and the older generation of neptunian dikes in the shallow?water Ravni Formation. All formerly emerged horsts flooded and red nodular limestones were deposited on the karstified shallow?water Ravni Formation after a gap. This second pulse of tectonic motions is related to the widespread volcanism in the Dinarides as visible in the appearance of mm?sized biotite clasts in the late Illyrian Bulog Limestone. In contrast to the Outer Dinarides, where thick volcanics are intercalated in the Illyrian sedimentary succession, in the Bulog Limestone successions of the Inner Dinarides volcanics are missing. In general the Pelsonian?Illyrian sedimentary succession is characterized by a stepwise deepening of the depositional realm.

Radiolarian assemblage from radiolarites of the Krs Gradac section (SW Serbia): On the way to a better reconstruction of the Middle-Late Jurassic geodynamic history of the Inner Dinarides

The type section of the Gonje Formation (Krs Gradac, Sjenica area) is characterized by an abundance of radiolarian tests, which, however, are gene rally recrystallized and poorly preserved. This paper focuses on the age of radiolarite sequence below the series with intercalated turbidites and mass transport deposits. The Callovian/Oxfordian (?early Oxfordian) moderately preserved radiolarian assemblage was determined from the higher part of the radiolaritic sequence without mass transport deposits. The new biostratigraphic age is consistent with the previously published data of the authors and reveals that the radiolaritic sequence without mass transport deposits of the Gonje Formation was deposited between the Bathonian and Oxfordian. The biostratigraphic age of this part of the Gonje Formation evidence that the Ljubis Basin underwent in Late Oxfordian to earliest Tithonian times a phase of starvation with reduced sediment supply or production. The reasons for this starvation are discussed.

The Karavansalija Mineralized Center at the Rogozna Mountains in SW Serbia: Magma Evolution and Time Relationship of Intrusive Events and Skarn Au ± Cu–Pb–Zn Mineralization

The Karavansalija Mineralized Center (KMC) with its Au–Cu skarn mineralization associated with the Rogozna Mountains magmatic suite in southwestern Serbia belongs to the Oligocene Serbo-Macedonian magmatic and metallogenic belt (SMM-MB). Samples from intrusive and volcanic rocks at the KMC show typical arc signatures of subduction-derived magmas through enrichment in large-ion lithophile elements (LILE) and depletion of high–field strength elements (HFSE). The magmas developed a high-K (calc-alkaline) fractionation trend and evolved toward shoshonitic compositions. Whole-rock trace element data suggest plagioclase-absent, high-pressure amphibole ± garnet fractionation that generates adakite-like hydrous magmas during evolution in lower crustal magma chambers. Zircon LA–ICP–MS and high-precision CA–ID–TIMS dating together with zircon trace elements and Hf isotope measurements were carried out in order to couple the geochronologic and geochemical evolution of the KMC. The results suggest that magmatism starts around 29.34 Ma with granitic to rhyodacitic subvolcanic intrusions followed by a more evolved magmatic intrusion that was emplaced into Cretaceous limestone, generating a widespread skarn alteration at ca. 28.96 Ma. After a period of quiescence of about 1.2 My, either another magma body evolved or the same upper crustal magma chamber was recharged and also likely partly reactivated older plutonic rocks as indicated by xenocrysts. The REE ratios shift from apatite, titanite ± amphibole-dominated fractionation of the older magmatic event to crystallization of allanite, efficiently depleting the LREE and Th/U in the younger upper crustal magma. After a lamproite-like melt was injected, the increased heat and fluid pressure led to the expulsion of a quartz-monzonite porphyritic stock at ca. 27.72 Ma, strongly interacting with the skarns and established a fertile hydrothermal system. Soon after a non-mineralized second pulse of some porphyry dykes cut the previous phenocryst-rich “crowded” porphyries and skarns at ca. 27.60 Ma, thus bracketing the maximum timespan of ore mineralization to about 112 ± 45 Ka. Increased contribution of a lamproite-like melt is inferred from the presence of phlogopite micro-phenocrysts, phlogopitization of biotite, and diopside clusters in the latest porphyry dykes. There is a trend of increased crustal assimilation from the oldest volcanic phase to the emplacement of the youngest porphyry dykes recorded by ɛ-Hf of the zircons. Oligocene occurrences of significant base metal mineralization within Serbia, northern Macedonia, and Greece, e.g., Crnac, Rudnik, Veliki Majdan, Stratoniu, or the Cu–Au porphyry at Buchim (northern Macedonia), are all associated with trachy-andesitic (quartz latitic) porphyry dykes, which originated through post-collisional tectonic settings or upper plate extension involving reworking of crustal arc-derived rocks and partial melting of the mantle wedge. This study demonstrates that on the basis of field relationships and the application of high-precision CA-ID-TIMS zircon age data, pulses of porphyry dykes of a 10ka age range can be distinguished, and the timing of mineralization can be parenthized.

Microfacies and biostratigraphy of an Upper Triassic Dachstein limestone fore-reef block in the Jurassic Sirogojno carbonate-clastic Mélange (Zlatibor Mt., SW Serbia)

In the late Middle to early Late Jurassic carbonate-clastic Sirogojno Melange in the Zlatibor Mountain there is one roughly 35 m thick overturned block with an intact Late Triassic fore-reefal Dachstein Limestone succession studied for its biostratigraphic age, content and microfacies characteristics. The succession starts with coarse-grained rudstones followed by meter-sized reefal blocks intercalated in partly layered resedimented grainstones and packstones with abundant reef-building organisms like calcareous sponges, corals and encrusting organisms. Inside this part of the succession open-marine influenced layers are rare. The succession continues with a partly turbiditic sequence and chaotic rudstones, densely packed with reef-derived material like broken reefbuilding organisms and shallow-water material like gastropods, bivalves and foraminifers. Grainstones with clear open-marine influence (e.g., thin-shelled bivalves, crinoids, conodonts) appear in between those rudstones, in cases lumachelle layers be composed of halobiids were deposited. To the end of the succession some layers show turbiditic bedding with mixed shallow-water and deep-marine grains and organisms, i.e. filaments and crinoids. On base of conodonts, foraminifers, calcareous algae, holothurians and halobiids throughout the whole studied succession, a middle Norian (Alaunian) to Rhae tian 1, most probably a late Norian (Sevatian) age can be assigned to this fore-reefal Dachstein Limestone succession, with a similar sedimentation pattern like Late Triassic Dachstein fore-reef limestone facies, e.g., in the Northern Calcareous Alps or the eastern Southern Alps. The study of this block in the Sirogojno Melange closes an important gap in knowledge about the extent, facies and stratigraphy of the Dachstein Carbonate Platform evolution in the Dinarides.

Upper Triassic\u2012Middle Jurassic resedimented toe-of-slope and hemipelagic basin deposits in the Dinaridic Ophiolite Belt, Zlatar Mountain, SW Serbia

In the Dinaridic Ophiolite Belt, small (m-scale) to large (km-scale) blocks of Middle to Upper Triassic, and Middle to Upper Jurassic, more or less silicified bedded limestone are widely present, both as parts of para-autochthonous successions and as redeposited blocks in ophiolitic mélanges. The studied, approximately 230-m-thick succession in the wider area of Zlatar Mountain, is one of the most important para-autochthonous sections in the Serbian part of the Dinaridic Ophiolite Belt. The succession is made up of an alternation of redeposited carbonate toe-of-slope deposits, sand to clay-sized siliciclastic rocks, hemipelagic mudstones and radiolarite–spongiolite basin facies. In the lower part of the sequence, the components of the siliciclastic beds were derived mostly from low- and medium-grade metamorphic rocks. Similar components, together with sand-sized fragments of ophiolitic rocks, were encountered in small amounts in some redeposited carbonate beds. The chronostratigraphic assignment of the succession is based mostly on foraminifers, but age-diagnostic radiolarians and other microfossil groups were also considered. In the lower part of the probably continuous succession, a Norian–Rhaetian assemblage was recognized; a Sinemurian–Pliensbachian assemblage was encountered up-section, whereas the upper part of the succession could be assigned to the Bajocian–Bathonian. Considering the paleogeographic reconstructions and the analogies of age-equivalent sections, the succession records the depositional history of the Bosnian Basin during the Late Triassic to Middle Jurassic period and may contribute to the understanding of the evolution of the Adriatic margin of the Neotethys Ocean in the transition interval from passive to active margin stages.

Late Triassic radiolarians from the Grivska formation, internal Dinarides, SW Serbia

Upper Triassic (upper carnian - rhaetian) grey cherty limestone are known in the internal Dinarides under the name of ?Grivska Formation?. Sediments of the Grivska Formation are characterized by microfossils only - conodonts and radiolarians, and did not yield any macrofossils. Micropa - laeontological research of Upper Triassic siliceous rocks was performed at the locality Lim river, in the vicinity of Bistrica Village in SW Serbia. Radiolarian assemblages are characterized by such species as Capnodoce anapetes De Wever, C. sarisa De Wever, Sarla hadrecaena (De Wever), Praehexasaturnalis tenuispinosus (Donofrio & Mostler), Xiphothecaellla longa (Kozur & Mock). According to the radiolarian data, the investigated cherts are of latest carnian to early norian age.

Emendation of the Grivska formation in its type area (Dinaridic Ophiolite Belt, SW Serbia)

Age, microfacies and depositional realm of the Grivska Formation is controversially discussed due to the fact that detailed investigations are missing. Based on reinvestigations of the type locality of the Grivska Formation and in adjacent areas, the following results can be drawn: 1) The Grivska Formation is of Late Triassic (Early Carnian to Rhaetian) age according to conodont dating. 2) Sedimentological and microfacies studies evidenced that the Grivska Formation was deposited on the continental slope and transitional to the Neo-Tethys Ocean. Based on the results of these investigations in the type area and several reference sections in the Dinaridic Ophiolite Belt, the Grivska Formation is emended and clearly defined. In the Dinaridic Ophiolite Belt, the Grivska Formation occurs only as clasts and blocks in the ophiolitic melange.

Open-marine Hallstatt Limestones reworked in the Jurassic Zlatar Mélange (SW Serbia): a contribution to understanding the orogenic evolution of the Inner Dinarides

Varied west-transported and far-traveled Jurassic melanges in southwestern Serbia represent a key to understand the geodynamic history and to solve paleogeographic questions and reconstructions in the Triassic–Jurassic passive and active margin arrangement of the Inner Dinarides. Of special interest are the carbonate-clastic radiolaritic melange areas in the Zlatar Mountain below the Dinaridic Ophiolite nappe. The present study reports from a Middle Jurassic sedimentary melange in the area of Vodena Poljana. Carbonate components and blocks of the mass-flow deposits consist exclusively of a reworked Middle/Late Anisian to Early Jurassic distal shelf succession. Ophiolite components from the Dinaridic Ophiolite nappe stack are missing in the spectrum. The underlying series of the Zlatar Melange belong to Early/Middle Anisian shallow-water carbonates and to Late Anisian to Middle Jurassic deep-water sedimentary rocks of the Hallstatt facies zone. South of Vodena Poljana in the overlying ophiolitic melange occur Late Triassic radiolaritic components from the sedimentary cover of the Late Triassic ocean floor, beside ophiolite clasts and limestone components from the continental slope. A comparison with preserved Hallstatt Limestone successions and Jurassic melange complexes from the Eastern Alps, Western Carpathians, and Albanides strengthen the interpretation of a provenance of the Zlatar melange from the distal passive margin facing the Neotethys Ocean to the east. An autochthonous Dinaridic Ocean west of the Drina-Ivanjica Unit cannot be confirmed.

Upper Cretaceous geosites on Golija Mountain - objects of geoheritage

The Upper Cretaceous rudist limestones are well-known from several localities in Serbia. Three of these localities (Svilanovo, Bele Vode and Kulizino Selo) are located in SW Serbia, on Golija Mt. These localities are crucial for understanding the development of the Upper Cretaceous shallow-water environments, thus this is an area of great scientific and educational value, particularly considering palaeontology, stratigraphy, palaeoecology and palaeogeography. One of the aims of this paper is to evaluate these geosites and their geotouristic potential, using Geosite Assessment Model (GAM), which is important for their geoconservation as well as for the sustainable development of the area.

An insight into the bryophyte flora of the Ibar gorge and its surroundings (Central and SW Serbia)

A total of 126 bryophyte taxa (12 liverworts and 114 mosses) were collected in the Ibar gorge and its surroundings. The climate of the gorge receives Mediterranean influence, hence almost one fourth part of the species found are Mediterranean, sub-Mediterranean, or sub-Atlantic elements. Several rare species in Serbia and in the Balkans can be found in the territory (e.g. Bryum gemmiferum, Dialytrichia mucronata, Didymodon nicholsonii, Grimmia lisae, Gymnostomum viridulum, Hygroamblystegium humile, Orthotrichum obtusifolium, Syntrichia latifolia). One species (Buxbaumia viridis) is included in the Bern Convention and the European Union Habitats and Species Directives. The Ibar gorge maintains a unique bryophyte assemblage due to the serpentine bedrock and continental, Mediterranean climatic influence, which are the main characteristics of the region.

New Records of Mediterranean-Atlantic Mosses in the Flora of Serbia

Abstract: Papp, B., Szurdoki, E., Pantovic, J. & Sabovljevic, M. S. 2016. New records of Mediterranean-Atlantic mosses in the flora of Serbia. — Herzogia 29: 185–189. During extensive field research on cryptogams of the lower Ibar Valley in Central—SW Serbia three moss species were recorded new to the bryophyte flora of Serbia. These are Dialytrichia mucronata, Grimmia lisae and Gymnostomum viridulum.

FIRST BIOACOUSTIC SURVEY OF SINGING CICADAS (HEMIPTERA: CICADIDAE) IN SERBIA

New data on the distribution of singing cicadas in Serbia were collected with a bioacoustic approach. Six species were detected in SW Serbia and on Mt. Avala between 4 and 12 June, 2014. Three of the species are new for this country − Cicadetta montana sensu stricto, C. cantilatrix and C. macedonica. For the other three species, Dimissalna dimissa, Cicadivetta tibialis and Tettigettula pygmea, new distributional data are reported.

Chert blocks in the ophiolitic mélange of Zlatibor Mt. (SW Serbia): Age and geodynamic implications

Cherts are quite frequently occurring rocks in the Internal Dinarides, an extremely complex area composed of several tectonostratigraphic units in which oceanic sediments, ophiolites and partly metamorphosed parts of the distal continental margin of Adria are preserved. Therefore, these cherts differ in age and the original depositional environment in which they were formed. Results of investigations carried out in the chert blocks found in the melange in the vicinity of Jasenovo village on SE slopes of Zlatibor Mt. are presented here. Radiolarian cherts from the studied localities represent blocks in melange of the East-Bosnian-Durmitor Unit, exposed in a large tectonic window below the Triassic carbonates of Drina-Ivanjica Unit. Biostratigraphic data revealed Callovian-early Kimmeridgian ages of the studied chert blocks, thus implying a Kimmeridgian or younger age of obduction of the West Vardar ophiolites.

Interesting and New Species for the Bryophyte Flora of Serbia

Papp, B., Pantović, J., Szurdoki, E. & Sabovljević, M. S. 2014. Interesting and new species for the bryophyte flora of Serbia. — Herzogia 27: 221–225.During extensive field research on cryptogams of Pešter plateau in SW Serbia three species were recorded new to the bryophyte flora of Serbia. These are two liverworts and one moss, Riccia canaliculata, Scapania praetervisa and Pseudoleskeella rupestris, respectively.

New and interesting bryophyte records for the flora of Serbia

During a revision of the bryophyte collections in the Herbarium of the Balkan Peninsula, Natural History Museum of Belgrade (BEO) and the Herbarium of the University of Belgrade (BEOU), as well as historical literature data, four bryophytes were identified as new to the flora of Serbia, namely, the mosses Fontinalis hypnoides, Leucobryum juniperoideum, Dicranum spurium and the hornwort Phaeoceros laevis. Fontinalis hypnoides is relatively recently recorded in SW Serbia, while Leucobryum juniperoideum and Dicranum spurium are known from historical collections. The hornwort Phaeoceros laevis was cited for SE Serbia in 1907, but up to now not found again.

Dactylorhiza fuchsii (Orchidaceae), a new species in the flora of Serbia

Dactylorhiza fuchsii (Orchidaceae) has been found on Mt. Javor (SW Serbia) as a new species in the flora of Serbia. This is the single known locality of this species in the Central Balkans and the southernmost limit of the species? distribution on the Balkan Peninsula. Data concerning its morphology, distribution, habitat preferences, flowering period, population size and conservation status in Serbia are provided.