TY - JOUR AU - Veress, Márton TI - Rubble Mines in the Environs of Veszprém (Bakony Region, Hungary) JF - MINING J2 - MINING VL - 3 PY - 2023 IS - 4 SP - 579 EP - 604 PG - 26 SN - 2673-6489 DO - 10.3390/mining3040032 UR - https://m2.mtmt.hu/api/publication/34436548 ID - 34436548 AB - In the Bakony Region, in the mines of dolomite (dolostone) surfaces between the settlements of Márkó and Pétfürdő (Várpalota), in rubble beds exposed by them and with the consideration of these, the process of rubble formation is studied here in order to interpret the characteristics of rubble beds (different thicknesses and vertical changes in grain size) in the studied area. The mines in the area (differentiated between old-school/traditional mining or mechanical mining) were classified with the consideration of mining methods. Rubble varieties were differentiated, the bedding of rubble beds was studied along profiles, and the elevation difference between mines of mechanical mining and Stream Séd was determined. The calcareous content and structure compactness of 124 samples originating from dolomite, rubble, and non-rubble in the Bakony Region were compared. The data prove that the rubble developed by dissolution. Dissolution might have been caused by both meteoric water and karstwater. The rubble of mines excavated by traditional mining mainly developed to the effect of the dissolution effect of meteoric water (the rubble beds are of coarser and coarser grain size downwards), while the mines excavated by mechanical mining were formed to the dissolution effect of karstwater (the rubble beds are coarser and coarser upwards). The formation of rubble by karstwater origin has not been mentioned in the literature yet. However, dissolution of meteoric water origin may also take place in the case of the latter, and dissolution of karstwater origin also plays a role in the development of mines excavated by traditional mining. LA - English DB - MTMT ER - TY - JOUR AU - Veress, Márton AU - Unger, Zoltán TI - Potential Impacts of Zone-Specific Mining on Karst JF - Acadlore Transactions on Geosciences J2 - ATG VL - 2 PY - 2023 IS - 4 SP - 208 EP - 214 PG - 7 SN - 2958-1869 DO - 10.56578/atg020403 UR - https://m2.mtmt.hu/api/publication/34436504 ID - 34436504 LA - English DB - MTMT ER - TY - JOUR AU - Veress, Márton AU - Deák, György AU - Mitre, Zoltán TI - The vertical electrical sounding (VES) of the epikarst: A case study of the covered karst of the Bakony region (Hungary) JF - ACTA CARSOLOGICA J2 - ACTA CARSOLOGICA VL - 52 PY - 2023 IS - 2-3 SP - 245 EP - 258 PG - 14 SN - 0583-6050 DO - 10.3986/ac.v52i2-3.12149 UR - https://m2.mtmt.hu/api/publication/34436497 ID - 34436497 AB - The epikarsts of five covered karst areas in the Bakony region are compared. The comparison is based on the specific resistances of the bedrock resistance averages measured by vertical electrical sounding (VES). The average largest specific resistance differences (per area) and the mean values (per profile) were calculated to investigate the characteristics of the epikarst. The mean values of specific resistance were compared using analysis of variance (ANOVA) to determine whether the specific resistances of the areas showed significant differences. The studied karst areas can be categorised as high or low specific resistance areas, and the ANOVA method could be applied to three areas based on the available data. It can be concluded that the mean values of their specific resistances are significantly different. The mean values and standard deviation of the specific resistances of the different areas were analysed. It is described that the karst receives less water in the case of areas with lower specific resistance, while it receives more water in the case of areas with higher specific resistance. Areas with a high specific resistance are less karstified, while areas with a low specific resistance are more karstified. Low specific resistances and small mean values indicate a higher degree of cavity formation in the epikarst, while the decrease in mean values and standard deviation indicates increasing uniformity of the degree of cavity formation in the epikarst. The different degree of cavity formation is explained by the different karstification rates and the exposure of different time of certain areas. LA - English DB - MTMT ER - TY - JOUR AU - Veress, Márton TI - Landscape Evolution in Glacier Valleys of Glaciokarsts JF - GEOSCIENCES (SWITZERLAND) J2 - GEOSCIENCES VL - 13 PY - 2023 IS - 10 SN - 2076-3263 DO - 10.3390/geosciences13100308 UR - https://m2.mtmt.hu/api/publication/34256379 ID - 34256379 AB - The landscape evolution of the glacier valleys of glaciokarsts is described. Depending on the character of coveredness (quality and thickness of the cover), altitude and the presence of karst features, different ways of geomorphic evolution occur adjacently. Most widespread is the denudation of bare surfaces by karren formation. During this process, beds are denuded, which is primarily controlled by the dip direction of the beds. The denudation of beds may modify the original cross-section of valleys. On terrains covered with caprock, the cover is becoming thinner by erosion processes since the debris is transported into the karst depressions and then from here into the karst. On terrains covered with limestone debris, if the cover is purely limestone debris, denudation is cyclical. The thick cover becomes thinner by dissolution and subsequently, the bedrock is dissolved by karren formation if water with dissolution capacity arrives at the bedrock. Then, the debris that developed on the bedrock makes the cover thicker from below. Reaching an adequate thickness, the process is repeated by the dissolution of the cover debris. In cirques, the superficial deposit is transported into the karst, which is supplied from the slopes, increasing the upfilling of the feature. LA - English DB - MTMT ER - TY - JOUR AU - Mitre, Zoltán AU - Veress, Márton TI - Revealing the development of local hollowings in rinnenkarren using field data (Totes Gebirge, Austria) and simulation of different numbers of channel junction JF - ACTA CARSOLOGICA J2 - ACTA CARSOLOGICA VL - 52 PY - 2023 IS - 1 SP - 29 EP - 42 PG - 14 SN - 0583-6050 DO - 10.3986/ac.v52i1.10832 UR - https://m2.mtmt.hu/api/publication/34174341 ID - 34174341 N1 - Export Date: 27 October 2023 AB - The development of emerging hollowing parts of the main channels of rinnenkarren systems at tributary channel junctions is interpreted in this study using Computational Fluid Dynamics (CFD) simulation. In the field, data from cross-sections of 505 local hollowings with one or more tributary channel junctions were investigated. The shift in the width–depth ratio of the local hollowings was studied as the number of junctions and the size of the hollowing changed. Flow was simulated through CFD in digital model channels, and the nature of the resulting vorticity was interpreted. Field data show that local hollowings emerging in the main channels of the channel systems at the junctions. In the main channels, when only a few tributary channels join in the vicinity of each other, local hollowings deepen during their growth and, most often, gradually become pits (depth is larger than width), as the morphometric analysis suggests. As the number of tributary channels increases, the local hollowing may develop into a kamenitza (width is larger than depth). The model experiment suggests the explanation that more tributary channel junctions result in more extensive vorticity, which contributes to the lateral extension (widening) of this channel section. The distance of the tributary junctions from each other also influences the downstream dimension of the local hollowing. In the field, the larger this distance, the more separated the local hollowings induced by individual tributaries. The model experiment suggests that this may occur because the intense vorticity generated by individual junctions becomes increasingly sectionalized as the tributary channel density decreases. LA - English DB - MTMT ER - TY - JOUR AU - Veress, Márton TI - Mass movements of karren slopes JF - Journal of Geography and Cartography J2 - Journal of Geography and Cartography VL - 6 PY - 2023 IS - 1 SP - 1770 PG - 10 SN - 2578-1979 DO - 10.24294/jgc.v6i1.1770 UR - https://m2.mtmt.hu/api/publication/34130036 ID - 34130036 AB - Karren and mass movements are described. Mass movements taking place on karren terrains are studied in case of bare karren and covered karren. Mass movements occur at rinnenkarren, grikes, Schichtfugenkarren, and tropical karren. This study describes that karren features increase the chance of the development of certain mass movements. It is approached in a theoretical way that in the case of different preconditions (e.g., change of slope angle), what kind of mass movements are triggered by different karren features. The most common mass movement is triggered by karren which are debris creep, gelisolifluction, rock avalanche, collapses, creep and solifluction. LA - English DB - MTMT ER - TY - JOUR AU - Veress, Márton AU - Péntek, Kálmán TI - The Effect of Horizontal Specific Temperature on the Flow Systems of the Transdanubian Mountains (Hungary) JF - HYDROLOGY J2 - HYDROLOGY-BASEL VL - 10 PY - 2023 IS - 7 SN - 2306-5338 DO - 10.3390/hydrology10070145 UR - https://m2.mtmt.hu/api/publication/34058273 ID - 34058273 N1 - Export Date: 22 September 2023 Correspondence Address: Veress, M.; Department of Geography, Hungary; email: veress.marton@sek.elte.hu AB - This study interprets the development of various flow types of the Transdanubian Mountains. For this, pressure was calculated at different depths and along some profiles the horizontal, specific temperature was calculated based on geoisotherms. This is the value of temperature distribution calculated to a given place. It has been established that upwellings develop at sites where the value of horizontal specific temperature is more than 0.8 °C, and partial upwelling can be detected where this value is between 0.6 °C and 0.8 °C. Outflow from the karst is present where this value is below 0.4 °C. Taking into consideration these values, the water temperature of karst springs and the caves of heat effect, the distribution of various flow types are determined. The flow type is also affected by the fault structure of the basin. In the case of horsts subsided to a great degree, since the sediment is thick above such horsts, the water is not able to flow upwards and towards the mountains because the hydrostatic pressure does not prevail any more. Above horsts subsided to a lower degree, the sediment is thin and thus, the water moving upwards is able to flow through. LA - English DB - MTMT ER - TY - JOUR AU - Veress, Márton TI - Horst-Controlled Karstification in the Bakony Region (Hungary) JF - LAND (BASEL) J2 - LAND-BASEL VL - 12 PY - 2023 IS - 3 PG - 16 SN - 2073-445X DO - 10.3390/land12030682 UR - https://m2.mtmt.hu/api/publication/33711071 ID - 33711071 AB - The karst of the horsts of the Bakony Region belonging to horst types of different development is described. Horsts elevated to the summit position are characterised by the most widespread and diverse karstification (with covered karst, cave-ins and shafts). Cryptopeneplains affect the karstification of horsts elevated to the summit position, but karst features also occur in their areas. On threshold surfaces of marginal position, the hypogene branches of regional flow systems influenced the development of spring caves. The karstification of basaltic mountains has been mainly governed by the properties of the basalt caprock (the major features being ponors with blind valleys and caprock dolines). LA - English DB - MTMT ER - TY - JOUR AU - Veress, Márton TI - Hydrological Characteristics of the Bakony Region (Hungary) JF - ENG J2 - ENG VL - 4 PY - 2023 IS - 1 SP - 581 EP - 601 PG - 21 SN - 2673-4117 DO - 10.3390/eng4010035 UR - https://m2.mtmt.hu/api/publication/33639491 ID - 33639491 N1 - Cited By :2 Export Date: 10 November 2023 Correspondence Address: Veress, M.; Department of Geography, Hungary; email: veress.marton@sek.elte.hu AB - In this study, the karst systems (karst types) of the Bakony Region are classified and described. The karst features and the groundwater (karstwater) flow, their horst (block) types and the hydrological cycle of horst types were taken into consideration. In the mountains, regional flow with a hypogene branch (hypogene karst system) and epigene karsts systems of local flow were distinguished. Among local epigene systems, epigene karst system, mixed epigene karst system, complex mixed epigene karst system, incomplete epigene karst system and semi-closed epigene karst system were distinguished. Local epigene systems are only temporarily (but not all of them) separated from the regional system that developed below and around them. During their development, separated local systems are more and more becoming the descending branches of regional systems. LA - English DB - MTMT ER - TY - JOUR AU - Veress, Márton AU - Unger, Zoltán AU - Vetési-Foith, Szilárd TI - Anthropogenic Pseudokarstic Depressions on Mount Bocskor (Bakony Region, Hungary) JF - JOURNAL OF EARTH SCIENCE J2 - J EARTH SCI VL - 34 PY - 2023 IS - 1 SP - 214 EP - 231 PG - 18 SN - 1674-487X DO - 10.1007/s12583-021-1506-z UR - https://m2.mtmt.hu/api/publication/33638484 ID - 33638484 LA - English DB - MTMT ER -