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Institute: Earth Science Institute of the SAS

Accessory minerals as indicators of geological processes of Precambrian granitoids formation and their metalogenetic potential (Ukrainian Shield)
Akcesorické minerály ako indikátory geologických procesov formovania granitoidov prekambria a ich metalogenetický potenciál (Ukrajinský štít)
Program: Inter-academic agreement
Project leader: RNDr. Broska Igor DrSc.
Annotation:Ukrainian Shield as a unique Precambrian structures situated within European continent include two Proterozoic terraines (megablocks) – Volyn and Ingul megablocks. These megablocks mostly comprize granites formed in different geodynamic settings with wide range of ages and associated ore occurrence and deposits. Ingul megablock (IM) is treated to bee an orogenic region formed as the result of collision between Middle Dnieper granite-greenstone terrain situated on the West and Volyn microcontinent on the East. The merger of both plate and the formation of one-pies collision seam had occurred on the brink of AR3-PR1. The central part of Ingul megablock is treated as fragment of transregional shear zone (Kherson – Smolensk) all structures of which are formed during the the development of this zone. At about 2,1-2,0 billion years, granites of Kirovograd and Novoukrainka types were formed in collision setting. Kirovograd granites are distributed in Central-Wester part of Ingul megablock within regional scale structure known as Ingul sinclinorium. These granites are formed after supracrustal rocks of Ingul-Ingulets series and as a result of prograde ultra metamorphism, occurred in aweakened zone under the drop of pressure. Kirovograd granites are represented by porphyric, equigranular, aplito-pegmatoide, aplite and pegmatite varieties. Geochemical (trace ellement) patterns obtained for these granites indicate that these granites might be related to S-type. Uranium deposit associated with this type of granites can be classified into two genetic types: 1) deposits of potassic-uranium genetic type found in granitic pegmatites similar to that of Rössing type. Among economic ore occurences are Th-REE-U mineralization of Balka Korabelna deposit and three small Th-U deposits (Southern, Kalinovka, Lozovatka) which have been discovered in the south-western part of the Kirovograd continental block; 2) deposits of sodic-uranium genetic type (Novokonstantynivka, Michurinka, Central, Vatutinka, Severynka, Dokuchaevka, Aprelskoe) o are associated with sodic metasomatites (albitites) which are developed after different types of rocks – (gneisses and schists of the Ingul-Ingulets series and pegmatitic granites patially (and genetically?) associated with two-feldspar granites of the Novoukrainka and Kirovograd complexes. Deposits of Li and ore occurrences of Ta, Cs, Rb, Nb, Be, Sn (LCT-type pegmatites) (Polohivka deposit and Stankuvatka ore occurrence) are associated with Li-pegmatites and metasomatites that are considered to be formed at apical part of aplite-pegmatites and granite massifs of Kirovograd type. Volyn (terraine) megablock is the region of tectonic-magmatic activisation which is interpreted to be formedas result of collision between Fennoscandia and Sarmatian segment of West-Europian craton. Intrusive granitoids of Osnytsk types form rock series as a part of Osnytsk-Mikashevychi Vulcano-plutonic association. The Osnytsk-Mikashevychi belt (being the part of large scale Volyn belt) is extending to the North-East of the Central Russian volcanic belt up to the Timan region. This structure border Fennoscandia from Volga-Uralia and Sarmatia along which tectonic movement and magmatic activisation occurred in these crustal blocks. According to isotopic data availiable the granites are thought to be formed from primary melt of mantlle origin. The final stage of major orogenic events occurred within Volyn megablock were manifesyed by the intrusion of Korosten pluton in anorogenic setting. The intrusion was preceded by unstable subplatform regime in the peripheral part of the Osnytsk orogenic belt. It formation was finished at 1,8-1,74 billion years ago. Korosten pluton is complex polyphase intrusive of anorthosite-rapakivi-granite formation (ARGF). The intrusion of Korosten type is the oldest among widely known world occurrence of ARGF. In addition, it is the largest pluton ARGF of West-European craton as well as among all plutons found in Ukrainian Shield. About 75% of total area of Korosten pluton is comprized by rapakivi and rapakivi-like granites. Other 25 % is covered by the basic and hybrid type rocks. According to geochemical features these granites should be related to granites of A-type. This project is aimed at intensification of the scientific cooperation between scientists of the Geological institution of Slovakia Academy of Sciences and National academy of Sciences of Ukraine. Sharing the scientific experience can help to solve a scientific fundamental problem and to find general features of distribution mineralization and economic ore occurrences/deposits both within territories of Slovakia and Ukraine
Duration: 1.1.2017 - 31.12.2019

AlpArray
AlpArray
Program: Multilateral - other
Project leader: Mgr. Csicsay Kristián PhD.
Annotation:AlpArray is an initiative to study the greater Alpine area with high-quality broadband seismology experiments using temporary deployments. The main goal is to gather different national efforts and instrument pools into a trans-national collaboration including data acquisition, processing and imaging. The geodynamic interpretation will be based on joint Earth science discipline efforts (geology, seismology, gravimetry, magnetotellurics, GPS, numerical and analogue modelling).
Duration: 1.1.2013 - 31.1.2020

Cretaceous – Paleogene boundary in Carpathians – multidisciplinary research
Hranice křída – paleogén v Karpatech – multidisciplinárni výskum
Program: Inter-institute agreement
Project leader: doc. RNDr. Soták Ján DrSc.
Annotation:New project of Geological Institute of Czech Academy of Sciences is focused on the paleomagnetic research of the Cretaceous/Paleogene boundary formations. Geophysical methodics is necessary to combine this project with biostratigraphic and sedimentologic research of selected sections through K/T boundary. Accordingly, Geological Institute CAS cooperates with Earth Science Institute of SAS and completes the research team by biostratigraphers and sedimentologists working in Carpathians.
Duration: 1.9.2018 - 31.12.2021

Climate-environmental deteriorations during Greenhouse phases: Causes and consequences of short-term Cretaceous sea-level changes
Klimaticko-environmentalne zhoršenie počas skleníkových fáz: príčiny a následky krátkodobých kriedových zmien morskej hladiny
Program: UNESCO
Project leader: doc. RNDr. Michalík Jozef DrSc.
Annotation:The recent rise in sea-level in response to increasing levels of atmospheric greenhouse gases and the associated global warming is a primary concern for society. Evidence from Earth’s history indicate that glacial-interglacial and some more ancient sea-level changes occurred at rates an order of magnitude or more higher than that observed at present. To predict future sea-levels we need a better understanding of the record of past sea-level change. In contrast to glacial eustasy controlled mainly by waxing and waning of continental ice sheets, short-time sea-level changes during major greenhouse episodes of the earth history are known but still poorly understood. The global versus regional correlation and extend, their causes, and consequences of these sea-level changes are strongly debated. The proposed project addresses correlation, causes and consequences of significant short-term, i.e. kyr to 100s of kyr, sea-level changes during the last major greenhouse episode of earth history, the Cretaceous. The long-term sea-level record, i.e. 1st to 2nd order cycles occurring over millions to tens of millions of years, is controlled by the internal dynamic history of the Earth. The changing rates of ocean crust production led first to long-term sea-level rise, high stands, and then decline during Cretaceous times. However, superposed shorter-term, 3rd to 4th order (kyr to 100s of kyr), sea level changes are recorded in Cretaceous sedimentary sequences. The mechanisms for these are controversial and include brief glacial episodes, storage and release of groundwater, regional tectonism and mantle-induced processes. Recent refinements of the geological time scale using new radiometric dates and numerical calibration of bio-zonations, carbon and strontium isotope curves, paleomagnetic reversals, and astronomically calibrated time scales have made major advances for the Cretaceous. Major international efforts such as EARTHTIME, EARTHTIME-EU and GTSnext programs are improving the Cretaceous time scale to yield a resolution comparable to that of younger Earth history. It is now for the first time possible to correlate and date short-term Cretaceous sea-level records with a resolution appropriate for their detailed analysis. This project will investigate mid- to Late Cretaceous (120 Ma – 66 Ma) sea-level cycles in detail in order to differentiate and quantify both short- and long-term records within the new high-resolution absolute time scale based on orbital cyclicity. The time interval for study begins with the first major oceanic anoxic event (OAE 1a) and terminates at the end of the Cretaceous. It includes the time of super-greenhouse conditions, the major oceanic anoxic events, the Cretaceous Thermal Maximum and the subsequent cooling to ordinary greenhouse conditions. The first major goal is to correlate high-resolution sea-level records from globally distributed sedimentary archives to the new, high-resolution absolute time scale, using sea-water isotope curves and orbital (405, 100 kyr eccentricity) cycles. This will resolve the question whether the observed short-term sea-level changes are regional (tectonic) or global (eustatic) and determine their possible relation to climate cycles. The second goal will be the calculation of rates of sea-level change during the Cretaceous greenhouse episode. Rates of geologically short-term sea-level change on a warm Earth will help to better evaluate recent global change and to assess the role of feedback mechanisms, i.e. thermal expansion/contraction of seawater, subsidence due to loading by water, changing vegetation of the Earth System. The third goal will be to investigate the relation of sea-level highs and lows to ocean anoxia and oxidation events, represented by black shales and oceanic red beds, and to evaluate the evidence for ephemeral glacial episodes or other climate events. Multi-record and multi-proxy studies will provide a high-resolution scenario for entire sea-level cycles and allow development of quantitative models for sea-level changes in greenhouse episodes
Duration: 25.4.2014 - 31.12.2019

Correlation of Jurassic-Cretaceous boundary sequences in the Tethyan Mediterranean Belt and adjacent regions based on geodynamics (lithostratigraphy, sequence analysis, paleogeography), micro- and nannofossil record and global climate and sea-level change
Korelácia jursko-kriedových hraničných sekvencií v tethidnom mediteránnom pásme a priľahlých oblastiach založená na geodynamike (litostratigrafia, sekvenčná analýza, paleogeografia), mikro- a nanofosílnom zázname a globálnych zmenách podnebia a úrovne mor
Program: Inter-academic agreement
Project leader: doc. RNDr. Michalík Jozef DrSc.
Annotation:Recent studies in both countries (Slovakia and Bulgaria – Michalik et al., 2016; Lakova & Petrova, 2013; Grabowski et al., 2016; Stoykova et al., submitted) have demonstrated the availability of suitable geological object for detailed study – well-exposed continuous sedimentary successions across the JKB interval. Our goal aims at complex investigation of two geological locations, comprising the JKB interval – one in Slovakia and one in Bulgaria. The direct integration of regional geology, lithofacies studies, calpionellid and nannofossil biostratigraphy, sequence stratigraphy would be of crucial importance to make a reliable correlation between the studied locations, as well as to promote the selected sections as auxiliary local stratotypes for the JKB. Background of cooperation and envisaged results and benefit: There are several important JKB sequences exposed on Bulgarian and Slovak territories (both belonging to different parts of the Tethyan Belt), which can contribute to the question of drawing of the Jurassic / Cretaceous boundary. Moreover, there are several Bulgarian and Slovak specialists participating in the project and deeply involved in the work of Berriasian Working Group (BWG) of the International Commission of Stratigraphy solving the question of the GSSP establishing of this important stratigraphical boundary since the end of the last millennium. As the drawing of universally valid Stratotype of the boundary is still matter of vivid discussions, the only possible way is constriction of a net of local, studied in details stratotypes, which can bring a remarkable progress.
Duration: 1.1.2018 - 31.12.2020

Correlation of magmatic and metamorphic evolution of the Rodopes and Western Carpathians
Korelácia magmatickej a metamorfnej evolúcie Rodopov a Západných Karpát
Program: Inter-academic agreement
Project leader: RNDr. Broska Igor DrSc.
Duration: 1.1.2018 - 31.12.2020

Low-frequency fluctuations of the geomagnetic field and their bioresponse effects in case of water characteristics, luminescent bacteria and yeast granules
Nízkofrekvenčné kolísanie geomagnetického poľa a jeho biologické reakcie v prípade charakteristík vody, luminiscenčných baktérií a kvasnicových granúl.
Program: Inter-academic agreement
Project leader: RNDr. Váczyová Magdaléna PhD.
Annotation:The main goal of the project is to study relationships between the geomagnetic field low-fequency variations,presented as an environmental factor, and dynamics of water characteristic,luminescent bacteria and yeast granules,that being a signature of the bioresponse investigated
Duration: 6.4.2017 - 31.12.2019

The total number of projects: 7