Publikační činnost Katedry geodézie a důlního měřictví / Publications of Department of Geodesy and Mine Surveying (544)

Permanent URI for this collectionhttp://hdl.handle.net/10084/64800

Kolekce obsahuje bibliografické záznamy publikační činnosti (článků) akademických pracovníků Katedry geodezie a důlního měřictví (544) v časopisech registrovaných ve Web of Science od roku 2003 po současnost.
Do kolekce jsou zařazeny:
a) publikace, u nichž je v originálních dokumentech jako působiště autora (adresa) uvedena Vysoká škola báňská-Technická univerzita Ostrava (VŠB-TUO),
b) publikace, u nichž v originálních dokumentech není v adrese VŠB-TUO uvedena, ale autoři prokazatelně v době jejich zpracování a uveřejnění působili na VŠB-TUO.

Bibliografické záznamy byly původně vytvořeny v kolekci Publikační činnost akademických pracovníků VŠB-TUO, která sleduje publikování akademických pracovníků od roku 1990.

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Implication of cenozoic tectono-sedimentary evolution for the geoenergy potential in the NW Transcarpathian Basin
(Ústav vied o Zemi Slovenskej akadémie vied, 2024) Subová, Viktória; Rybár, Samuel; Hudáčková, Natália; Jamrich, Michal; Jourdan, Fred; Mayers, Celia; Sliva, Ľubomír
The extensive Pannonian Basin System comprises several hydrocarbon-bearing sub-basins, including the moderately explored Transcarpathian Basin located in its NW part. Tectono-sedimentary and volcanic events have influenced the sub-basin's infill and geoenergy potential. Through a comprehensive analysis of petrophysical, organic geochemical, sedimentological, and biostratigraphic data, we aim to uncover the characteristics of petroleum and geothermal plays in the challenging-to-sample Prešov depocenter (NW corner of the Transcarpathian Basin) and its surrounding areas. The results highlight two significant tectono-sedimentary events: first, the opening and subsequent disintegration of the compressional foreland Central Carpathian Paleogene Basin, and its Lower Miocene continuation, which facilitated the deposition of source rocks. Second, the initial phase of rifting in the transtensional Prešov sub-basin, part of a broader back-arc system, created accommodation space for Karpatian to Badenian (Burdigalian to Serravallian) facies. This process led to the formation of fault system that deformed whole sedimentary infill, including the preCenozoic basement carbonates, which resulted in the creation of structural traps and pathways for horizontal and vertical migration. This research reaffirms the geoenergy potential of Paleogene sedimentary records in Central Europe as viable source rocks for hydrocarbons. Contrary to established knowledge, organic lean kerogen type III appears to not only produce methane gas but also wet gas. A promising hydrocarbon trap has been identified in the Triassic to basal Paleogene carbonate breccia reservoirs, though it includes a risk of CO2 and N2 contamination. Notably, this risk diminishes in the uppermost sections of the carbonate traps, where the highest concentrations of methane and wet gas are found, likely due to the gravitational separation of gases by molecular weight. Additionally, these carbonate breccias show moderate geothermal potential.
Deformation dynamics of the retro-wedge foreland: Seismic interpretation and numerical modeling study of the Llanos Basin, Colombia
(Elsevier, 2026) Nemčok, Michal; Hermeston, Steve A.; Henk, Andreas; Mora, Andres; Higuera, Camilo; Parra, Mauricio; Rybár, Samuel; Ledvényiová, Lucia
Combining reflection seismic interpretation with numerical modeling, this paper studies the deformation dynamics of the foreland plate overridden by the retro-wedge of an advancing subduction zone. The post-middle Eocene Llanos foreland basin serves as the natural laboratory. The reflection seismic interpretation identifies five elongated clusters of flexure-driven normal-faults, centered on the forebulge axis. Clusters have different stratigraphies of their syn-tectonic strata. They are located foreland-ward of thickness maxima of the coeval foreland basin fill. Normal faults are mostly planar, steep and die out with depth without being detached. Both fault clusters and infill thickness maxima are characterized by the SW-to-NE migration in time. Those sub-sets of normal faults, which are adjacent to retro-wedge, underwent tectonic inversion. They became reverse faults in a short time interval, likely less than 1-2 million years. The modeling demonstrates that the inversion requires a stress regime with sub-horizontal sigma 1 stress affecting the foreland crust located between the forebulge and retrowedge. This regime does not occur when the foreland plate is only loaded by the retro-wedge and foreland basin fill. It requires both vertical loads plus horizontal compression affecting the foreland plate. The modeling also indicates that both aforementioned loading scenarios result in the development of forebulge axis-centered clusters of flexure-driven normal faults. The modeling also indicates that the orogen-parallel Jurassic-Early Cretaceous rift-related crustal thinning zone located in the foreland plate results in its narrow flexure mode. Instead, the lack of crustal thinning results in a broad flexure mode of the foreland plate.
Articulated and dislocated infaunal echinoids as unique markers of hypoxic environments from the Miocene of Central Paratethys
(Scandinavian University Press, 2024) Tomašových, Adam; Galović, Ines; Hudáčková, Natália; Hyžný, Matúš; Ruman, Andrej; Rybár, Samuel; Šimo, Vladimír; Schlögl, Ján
Exceptional preservation of macrobenthic invertebrates with articulated remains is typically explained by episodic rapid burial events or by onset of anoxia, both aborting mixing and disintegration processes. However, these scenarios do not explain the preservation of articulated remains of infaunal organisms in the Lower Miocene diatom-rich mudstones (Schlier-type deposits) in the Central Paratethys epicontinental sea. We show that bathyal macrobenthic assemblages and dominated by the shallow-burrowing echinoid Lovenia are best preserved in background mudstones with burrow-disrupted diatomaceous lamination, conforming to intermediate ichnofabric typical of hypoxic environments. Lovenia occurs in three types of assemblages that differ in preservation, size structure, and species diversity: (1) dispersed or clustered, frequently complete echinoid tests with spines occur in homogeneous or partially-laminated silty claystones; (2) sandy pavements with densely-packed, almost monospecific echinoid concentrations exhibit intermediate frequency of intact tests with spines; and (3) well-sorted echinoid fragments co-occur with plant remains in species-rich sandy lags. Alternation of laminae formed by Thalassionema or Coscinodiscus-dominated diatom assemblages with terrigenous laminae indicates that: (1) postmortem burial of echinoids below the taphonomically-active zone was induced by rapid export of ungrazed diatoms to the seafloor and by seasonal fallout of terrigenous muds from hypopycnal plumes or low-density hyperpycnal flows (rather than by sudden burial by thicker event beds); and that, (2) sediment mixing and irrigation rates were slow and patchy because the diatomaceous mats were not eliminated by echinoid and crustacean burrows and the laminae-forming diatom frustules remained intact. Although winnowing and test exhumation to sediment-water interface contributed to the formation of pavements with echinoid concentrations, their dense packing and low evenness can rather reflect population outbreaks of echinoids exploiting seasonal diatom fluxes to the sediment surface. The echinoid fragments with spines, dislocated remains with cross-plate fractures, and molluscs with sharp-edged margins in silty claystones suggest that some mortality events were induced by predation rather than by anoxia. Seasonal hypoxia was a key factor that limited test disintegration and displacement and thus preserved not only unique ichnofabric but also intact or dislocated, weakly time-averaged remains of benthic fauna adapted to hypoxic conditions.
Accuracy of determination of corresponding points from available providers of spatial data - A case study from Slovakia
(MDPI, 2024) Labant, Slavomír; Peťovský, Patrik; Šustek, Pavel; Leicher, Lubomír
Mapping the terrain and the Earth's surface can be performed through non-contact methoYes, that is correct.ds such as laser scanning. This is one of the most dynamic and effective data collection methods. This case study aims to analyze the usability of spatial data from available sources and to choose the appropriate solutions and procedures for processing the point cloud of the area of interest obtained from available web applications. The processing of the point cloud obtained by airborne laser scanning results in digital terrain models created in selected software. The study also included modeling of different types of residential development, and the results were evaluated. Different data sources may have compatibility issues, which means that the position of the same object from different spatial data databases may not be identical. To address this, deviations of the corresponding points were determined from various data sources such as Real Estate Cadaster, ZBGIS Buildings, LiDAR point cloud, orthophoto mosaic, and geodetic measurements. These deviations were analyzed according to their size and orientation, with the average deviations ranging from 0.22 to 0.34 m and standard deviations from 0.11 to 0.20 m. The Real Estate Cadaster was used as the correct basis for comparison. The area of the building was also compared, with the slightest difference being present between the Real Estate Cadaster and geodetic measurement. The difference was zero after rounding the area to whole numbers. The maximum area difference was +5 m2 for ZBGIS Buildings.
Middle Miocene volcanic flare up preceding and synchronous with the Langhian/Serravallian sea-level decline in the North Pannonian Basin: Insights from 40Ar/39Ar dating, geo-seismic analysis and 3D visualization of the subterranean Kráľová stratovolcano
(Wiley, 2024) Rybár, Samuel; Šarinová, Katarína; Jourdan, Fred; Mayers, Celia; Sliva, Ľubomír
The Pannonian Basin System originated from the collision of the African and European tectonic plates, followed by the Miocene extensional collapse that led to the development of a back-arc basins. Accurate dating is essential to comprehend the tectono-volcanic evolution of the region, particularly in the under-studied Danube Basin. Single-grain Ar-40/Ar-39 dating has revealed that volcanic activity in the Danube Basin commenced around 14.1 million years ago, aligning with previous biostratigraphic and radioisotope data from nearby volcanic fields. The initial Middle Miocene pyroclastic deposits were generated by intermediate high K calc-alkaline magmas, contributing significantly to the deposition of thick layers of fine vitric tuffs. The timing and chemistry of the volcanism are consistent with the Badenian rift phase in the Middle Miocene within the Carpathian-Pannonian region, suggesting an intraplate back-arc volcanic environment. Three-dimensional imaging has exposed the buried Kralova stratovolcano, revealing its impressive scale with a thickness between 2620 and 5000 m and a base diameter of 18-30 km. Such dimensions place it among the ranks of the world's largest stratovolcanoes, indicating its substantial impact on the evolution of the Carpathian-Pannonian area. The complex formation history of the stratovolcano points to multiple phases of growth. Furthermore, the basin controlling Mojmirovce-Raba fault's intersection with the stratovolcano implies that fault activity was subsequent to the volcanic activity, being younger than 14.1 million years. Regional age data consistently indicates that volcanic activity in the Danube Basin reached its zenith just prior to and during the lower/upper Badenian sea-level fall (Langhian/Serravallian). K-metasomatism is unique to the stratovolcanic structures and is not observed in the wider regional setting. This study supports the notion of an intricate, interconnected subterranean intrusive system within the stratovolcano, underscoring the complex interplay between geological structures and volcanic processes.
Biostratigraphy and paleoecology of the upper Badenian carbonate and siliciclastic nearshore facies in the Vienna Basin (Slovakia)
(Springer Nature, 2024) Jamrich, Michal; Rybár, Samuel; Ruman, Andrej; Kováčová, Marianna; Hudáčková, Natália
This study provides a comprehensive examination of algal bioherm structures, including reefs and carpets that contain nannoplankton and foraminifera, originating from the upper Badenian (middle Miocene) strata of the Vienna Basin in the Central Paratethys. These lithofacies primarily consist of the carbonate red algal genus Lithothamnion. Through an integrated approach that combines calcareous nannoplankton, foraminifera, sedimentology, and palynology, the study explores the Serravallian (upper Badenian) sediments from the Vienna Basin. The biostratigraphic age, consistent with the NN6 and CPN9 zones, is further corroborated by 87Sr/86Sr dating. This research highlights the importance of taphonomic processes and paleoecological proxies in small-scale characterization and detecting short-term shifts within paleoenvironmental conditions. These unique bioherm structures enable a novel description of a limestone formation within the Vienna Basin (Sandberg Formation), which seems pervasive across the Central Paratethys region. The findings uphold the hypothesis of a profound connection between the Mediterranean and Central Paratethys via the Trans-Tethyan Trench Corridor, bolstered by upwelling conditions observed in the eastern perimeter of the Vienna Basin. Two main inhibitory mechanisms for carbonate growth in the Upper Badenian within the Central Paratethys area are confirmed: the first is a substantial siliciclastic influx from the Alps and Carpathians, supported by the ongoing rifting of the Vienna and Danube Basins; the second is the propagation of evaporites in the Transcarpathian and Transylvanian Basins leading to precipitation, which disrupts carbonate growth. This investigation underlines the intertwined relationship between regional geodynamics and carbonate sedimentation processes during the Miocene.
Gravity aspects for Mars
(Elsevier, 2023) Klokočník, Jaroslav; Kletetschka, Gunther; Kostelecký, Jan; Bezděk, Aleš
We use the recent global gravity field model of Mars (Konopliv et al., 2020) and compute the gravity aspects (descriptors). We introduce a unique method working with the gravity aspects for Mars to achieve novel information about Mars for geologists, geophysicists and others than is feasible by using traditional gravity anomalies alone. New map of gravity aspects allows a better constraining of possible northern paleo-ocean using the MOLA topography, the combed gravity strike angles and features of the fretted terrain as constraints for a “mean” paleo-seashore. The Valles Marineris would contain water that would flow into this ocean.
Petroleum play types and source rocks in the Pannonian basin, insight from the Slovak part of the Danube Basin
(Elsevier, 2023) Rybár, Samuel; Kotulová, Júlia
The Danube Basin represents a Miocene depocenter located on the NW margin of the Alpine-Pannonian-Carpathian region and is considered a partial sub-basin of the larger Pannonian Basin System. The gradual opening of the northern Slovak part of the basin during a 4-stage rifting event between the Badenian, Sarmatian (Langhian, Serravallian) to Pannonian (Tortonian) time reflected not only on the sedimentary fill and the development of volcanic fields but also on individual elements of the petroleum system. The presence of effective petroleum systems is supported by several gas and condensate deposits together with abundant hydrocarbon shows. The study offers new insight into the petroleum plays in Danube Basin based on new and vintage reflection seismic lines and organic geochemistry data. The novel findings reveal that within the older sub-basins (Blatné and Želiezovce) the main source rock is the lower Badenian mudstone with mixed Type III/II kerogen. Paleogene shales with Type II kerogen together with Pre-Cenozoic basement Type III/II rocks cannot be excluded. In the younger sub-basins (Komjatice and Gabčíkovo-Győr) the main source rocks are upper Badenian – Sarmatian, and Pannonian mudstones with Type III/II kerogen. Two gas play groups are defined. 1) Plays in older sub-basins characterized by structural traps mostly in the Badenian reservoirs. 2) Plays in younger sub-basins characterized by stratigraphic and structural traps in Sarmatian and Pannonian reservoirs. Non-hydrocarbon gas risk arises from CO2 and N2 contents sourced from buried volcanic fields. The volume of inert gasses trapped in particular sub-basins is dependent on the timing and type of volcanism. It is lower in the older sub-basins and higher in the younger ones, at the same time, the risk is lower in stratigraphically highest reservoir intervals.
Geophysical architecture of tectonized volcanic bodies near flysch thrust fronts (Outer Western Carpathians)
(Elsevier, 2023) Kašing, Martin; Jirásek, Jakub; Matýsek, Dalibor; Melnyk, Anastasiia; Jirman, Petr; Skupien, Petr; Pospíšil, Lubomil
Teschenite association rocks (TAR) represent a specific type of mostly alkaline igneous rocks which form an almost 100 km long belt of discontinuous rock bodies within the Outer Western Carpathians (OWC) in the territory of Czechia and Poland. At present, a detailed mineralogical, geochemical, and stratigraphic analysis or dating of the volcanic formations is available, but basic structural and spatial relations characterizing TAR bodies and their origin are missing due to the poor exposure of TAR and lack of borehole data. A drill-hole- and outcrop-data-calibrated geophysical survey has proven to be a powerful tool for the interpretation of spatial extent and subsurface structure of TAR. At two type localities of TAR in Czechia (sites Staré Město and Bruzovice), a geophysical investigation combining ground conductivity mapping (CM) with profile measurement of electrical resistivity tomography (ERT), gravity survey, and magnetic survey was performed. A joint interpretation of the geophysical data served to determine the spatial extent (up to 500 m long and 40 m deep), geometry, and structural features (often fault-bounded with highly anisotropic heterogeneous structure of mélange character) of the studied TAR bodies. The interpreted magmatism of the study area included a stage of intrusion and extrusion of magmatic bodies in the Early Cretaceous, followed by a phase of fold-thrust deformation during the tectonic shortening of the area from the Late Cretaceous to Oligocene times. The resulting highly anisotropic rock mass consisting of TAR and its country rocks structurally controls the subsequent post-tectonic gravity-driven deformation.
Digital heritage, the possibilities of information visualisation through extended reality tools
(MDPI, 2023) Mudička, Štefan; Kapica, Roman
Many researchers in the field of cultural heritage point to the justification of the use of extended reality to present digital heritage. Research studies, but mainly user reactions, have responded to experiences with extended reality with a positive response. Technological research in the field of extended reality is advancing rapidly. In this review, we will cover the current possibilities and trends of extended reality. Specifically, we will focus on the application in creating interactive multimedia exhibitions in museums and galleries and presenting 3D digital heritage. We believe the practical examples shown will be an inspiration for application developers, content creators, and exhibition curators. Awareness of the possibilities and limits of the current state of technological progress is an essential requirement for utilisation of the full potential of extended reality
Evolution of the lower Badenian depositional system in the East Slovakian Basin: Implications for reservoir rock potential
(Ústav vied o Zemi Slovenskej akadémie vied, 2022) Subová, Viktória; Rybár, Samuel; Šarinová, Katarína; Hudáčková, Natália; Jamrich, Michal; Sliva, Ľubomír; Šály, Branislav; Hlavatý, Ivan
The Transcarpathian Basin, consisting of the Predov and Trebisov sub-basins, is situated at the border of the Western and Eastern Carpathians. Hydrocarbon exploration in this basin has been ongoing for more than 60 years and reserves of economic importance are located in the E to NE part of the basin. The Trebisov sub-basin was analysed to characterize and predict lower Badenian (Langhian) reservoir rocks. To achieve this aim, new sedimentary facies, seismic facies, petrographic and paleontological analyses were performed, combined with original total porosity and permeability measurements. Based on the planktic foraminifera and calcareous nannoplankton zonation, the lower Badenian sequence in the Trebisov sub-basin was divided into a lower and an upper interval. The presence of very well sorted sandstone layers, glauconite grains, albitization, selective alteration of tuffs into zeolites as well as the fossil assemblages reinforce the volcanic influenced marine environments. Documented sedimentary structures indicate subaqueous density flows preceded by the newly observed fluvial and deltaic facies. The total sandstone porosity measurements indicate a gradual porosity decrease with depth marked by a value of 13.21 % at the surface decreasing down to 6.41 % at similar to 3 km below the surface. These numbers correspond to reservoirs with low to reduced porosity. Diagenetic products such as illite, chlorite and feldspar cement together with compaction effects, and variations in the crystallinity in siliceous cement led to the modification of initial porosity. The potential lower Badenian reservoir sandstones are frequently deformed by strike-slip faults responsible for the large pull-apart basin complex (seen as horsetail structures on reflection seismic sections) forming various fault-bounded structural traps. The lower Badenian sandstones present at the top of two anti-clinal structures in the central part of the basin, display very strong reflection amplitudes on newly merged 3D reflection seismic data underlining the additional exploration potential in the basin.
Investigation of unexploded aircraft ammunition from WW2 in connection with construction proceedings
(Polskie Towarzystwo Przeróbki Kopalin, 2022) Šafář, Václav; Staňková, Hana; Pospíšil, Jiří; Budayová, Maria
In the period 1939-1946, the territory of the Czech Republic was mapped for the purpose of renewing topographic maps of the territory of the Third Reich, and aerial reconnaissance (AR) of the CR territory was also carried out by the Allies. The AR was conducted in two directions. The first was to search for enemy targets, and the second was to verify the results of bombing these targets. Allied data indicated that up to 20% of the bombs did not explode. This unexploded aerial ammunition is to this day a threat to construction in the outskirts of towns and cities. This paper discusses the procedures for processing archival aerial photographs of bombed areas in the Czech Republic and the identification of unexploded ammunition on these images.
Silicites of the Blovice complex (Western Bohemia) - their probable genesis, position and utilization
(Polskie Towarzystwo Przeróbki Kopalin, 2022) Beránek, Jiří; Vrublová, Dana; Kapica, Roman; Laštůvková, Markéta
This article deals with silicites (lydites) and their characteristics in the environs of Western Bohemian villages of Skasov, TATIN SMALL LETTER Y WITH ACUTEniste and Kbelnice (former Plzen - jih county). These rocks form long and narrow lenticular bodies in adjacent rocks of the so called Blovice complex (the southern part of Bohemicum, the Tepli - Barrandian part). However, the origin of silicites has not been fully clarified so far. Authors of many studies differ in their opinion - whether these rocks originated either in shallow waters or deep (oceanic) ones, which processes made for this kind of silicites, whether microorganisms were involved, et cetera. In the past, these rocks were quarried because of their excellent properties - hardness, strength as well as a minimum inhibition and utilized for soling forest ways as well as roads and for various constructions including basements, walls and even whole houses - residential and farming ones. In the area, there are many evidences of quarrying lydites in the form of various pits and abandoned quarries with remnants of technology (ramps, service buildings, etc.). The article is supplemented (by / with) original photos as well as simplified maps within the frame of this text.
Establishment of local geodetic networks based on least-squares adjustments of GNSS baseline vectors
(Polska akademia nauk. Komitet Geodezji, 2022) Weiss, Gabriel; Labant, Slavomír; Gašinec, Juraj; Staňková, Hana; Černota, Pavel; Weiss, Erik; Weiss, Roland
Slope deformations, i.e., all types of landslides of rock masses (flow, creep, fall down, etc.), caused by gravitational forces, are the most widespread implementation of geological hazards and a negative geomorphological phenomenon that threatens the security of the population, destroy all utility values of the affected regions, negatively affects the environment, and cause considerable economic damage. Nowadays, the Global Navigation Satellite Systems (GNSS) provide accurate data for precise observations around the world due to the growing number of satellites from multiple operators, as well as more powerful and advanced technologies and the implementation of mathematical and physical models more accurately describing systematic errors that degrade GNSS observations such as ionospheric, tropospheric, and relativistic effects or multipath. The correct combination of measurement methods provides even more precise, i.e., better measurement results or estimates of unknown parameters. The combination of measurement procedures and their significant evaluations represent the essential attribute of deformation monitoring of landslides concerning the protection of the environment and the population's safety in the interest areas for the sustainable development of human society. This article presents the establishment and use of a local geodetic network in particular local space for various needs. Depending upon the specific conditions, it is possible to use GNSS technology to obtain accurate observations and achieve the results applicable to the deformation survey for subsequent processing of the adjustment procedure.
Artefacts in gravity field modelling
(Akademie věd České republiky, Ústav struktury a mechaniky hornin, 2021) Klokočník, Jaroslav; Kostelecký, Jan; Bezděk, Aleš; Kletetschka, Gunther
Artefacts in applications of the global gravity field and topographic models based on satellite and terrestrial data of diverse kinds are studied. Various types of artefacts are presented and analysed with the aim to understand how the artefacts originated, how to reduce them (if feasible) and to avoid misinterpretations in geoscience. We work with the gravity aspects (gravity anomalies, the Marussi tensor of the second derivatives of disturbing potential, gravity invariants and their specific ratio, strike angles, and virtual deformations), and with surface or bedrock topography. Examples for the Earth, the Moon, and Mars are presented.
Multiproxy constraints on Central Paratethys Sea and Lake Pannon paleoclimate and paleoenvironment transitions during the Middle-Late Miocene (Danube Basin, Slovakia)
(Elsevier, 2022) Vlček, Tomáš; Kováčová, Marianna; Šarinová, Katarína; Rybár, Samuel; Hudáčková, Natália; Ruman, Andrej; Jamrich, Michal; Franců, Juraj
The Danube Basin represents a northwestern depocenter of the Middle Miocene Central Paratethys Sea, which was succeed by the Late Miocene Lake Pannon. Although this is an extensively examined area, the application of multidisciplinary studies has proven capable of drawing attention to novel information concerning the depositional environment. Thus, this study aims to reveal climatic and paleoenvironmental changes by using both archive and fresh data drawn from biomarkers, palynology, sedimentology, and geochemistry. The article also addresses the quality, quantity, and thermal maturity of organic matter in relation to hydrocarbon potential. In general, the beginning of Serravallian stage relates to a regression forced by the development of the Antarctic icesheet followed by a pronounced transgression. The results presented here show that the Central Paratethys Sea reacted to the late Badenian (Serravallian) flooding, by an event which triggered a dysoxic, but not euxinic, bottom waters. The climate remained warm and humid, with paratropical to subtropical forests on the continent. Several new depocenters developed during the Sarmatian and divided the depositional environments into a shelfbrake slope in the central part of the Danube Basin, and into deltaic and swamp environments on the basin margins. The climate changed to temperate, leading to the disappearance of subtropical taxa. A shallow lake and swamp environment developed at the beginning of the Pannonian (Tortonian), forcing a salinity decrease connected to the increase in humidity. The degree of hydrocarbon richness of the mudstones is generally fair to good, and the kerogen is of mixed marine-terrestrial origin (II and III). Nonetheless, sediments at the basin margin are clearly immature due to insufficient burial.
New geophysical and geological data on the Moldanubian plutonic complex and the Kaplice Fault, southern Bohemia
(Springer Nature, 2022) Melnyk, Anastasiia; Černý, Jan; Pospíšil, Lubomil; Adamovič, Jiří
The paper presents a new structural model of the granitoid intrusions of the Moldanubian plutonic complex in southern Bohemiaeast of the town of Kaplice. Valuable archival gravity data were supplemented by magnetic survey and precise profile gravity measurements to better define the gravitational effect of the granitoid body and provide an accurate model solution. Our findings, based on geophysical analyses and modelling, bring new information on the shape and deep structure of the Moldanubian plutonic complex in southern Bohemia. These results are complemented by a tectonic investigation of the Freistadt granodiorite body and the Kaplice Fault. New information on the geometry of the Kaplice Fault plane acquired from Linsser indications is discussed in relation to its possible recent seismic activity. The usefulness of the Linsser indications method for active tectonic studies is demonstrated. This is the first regional study in this insufficiently known part of the Bohemian Massif, providing new information on the extent of granites and their relationship to one of the most significant faults in this area.
Distribution of water phase near the poles of the Moon from gravity aspects
(Springer Nature, 2022) Kletetschka, Gunther; Klokočník, Jaroslav; Hasson, Nicholas; Kostelecký, Jan; Bezděk, Aleš; Karimi, Kurosh
Our Moon periodically moves through the magnetic tail of the Earth that contains terrestrial ions of hydrogen and oxygen. A possible density contrast might have been discovered that could be consistent with the presence of water phase of potential terrestrial origin. Using novel gravity aspects (descriptors) derived from harmonic potential coefficients of gravity field of the Moon, we discovered gravity strike angle anomalies that point to water phase locations in the polar regions of the Moon. Our analysis suggests that impact cratering processes were responsible for specific pore space network that were subsequently filled with the water phase filling volumes of permafrost in the lunar subsurface. In this work, we suggest the accumulation of up to similar to 3000 km(3) of terrestrial water phase (Earth's atmospheric escape) now filling the pore spaced regolith, portion of which is distributed along impact zones of the polar regions of the Moon. These unique locations serve as potential resource utilization sites for future landing exploration and habitats (e.g., NASA Artemis Plan objectives).
The spatial distribution of the strike angles derived from EIGEN 6C4 gravity model-a new possibility for oil and gas exploration?
(Inderscience, 2021) Klokočník, Jaroslav; Kostelecký, Jan; Bezděk, Aleš; Cílek, Václav
We discovered a correlation between the 'combed' strike angles (one of the gravity functions derived from a gravity field model) and regions with oil, gas, shale gas deposits or ground water, paleolakes or impact craters. The spatial distribution of the combed strike angles may indicate a new cheap and accessible geophysical tool for recognition of some potential oil and gas areas. We work with the global gravity field model EIGEN 6C4 providing a ground resolution of about 10 km and a precision typically 10 mGal. First, we test the well-known oil/gas fields; this attests the success of the proposed methodology. Then, we extrapolate outside the known zones. The new method may be an inexpensive tool for frontier areas in terms of decreasing the risk of deposit exploration. An extensive supplementary material is added.
The use of UAV in cadastral mapping of the Czech Republic
(MDPI, 2021) Šafář, Václav; Potůčková, Markéta; Karas, Jakub; Tlustý, Jan; Štefanová, Eva; Jančovič, Marián; Cígler Žofková, Drahomíra
The main challenge in the renewal and updating of the Cadastre of Real Estate of the Czech Republic is to achieve maximum efficiency but to retain the required accuracy of all points in the register. The paper discusses the possibility of using UAV photogrammetry and laser scanning for cadastral mapping in the Czech Republic. Point clouds from images and laser scans together with orthoimages were derived over twelve test areas. Control and check points were measured using geodetic methods (RTK-GNSS and total stations). The accuracy of the detailed survey based on UAV technologies was checked on hundreds of points, mainly building corners and fence foundations. The results show that the required accuracy of 0.14 m was achieved on more than 80% and 98% of points in the case of the image point clouds and orthoimages and the case of the LiDAR point cloud, respectively. Nevertheless, the methods lack completeness of the performed survey that must be supplied by geodetic measurements. The paper also provides a comparison of the costs connected to traditional and UAV-based cadastral mapping, and it addresses the necessary changes in the organisational and technological processes in order to utilise the UAV based technologies.

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