A contribution to the problem of the granitoid elevations genesis in the western part of the Černá Voda Hilly land, Žulová batholith

The aim of this paper is to present a hypothetical model of the genesis of granitoid elevations East of the Kobylá nad Vidnavkou village. Two diverse hypotheses have been developed for the elevations’ origin in the literature: (1) glacial erosional sculpting into roche moutonnées, and (2) irregularities of the basal surface of weathering. Applying morphometrical research methods we could show that the elevation elongations strongly correlate with the preferred orientations of the fracture system of the Žulová granite. The studied elevations do not bear any characteristic micro- and/or macro-features of glacial modelling. Granitoid elevations in the studied area are therefore very plausibly built of exposed irregularities of the stripped basal weathering surface (etchplain) and could be denoted as basal knobs.The aim of this paper is to present a hypothetical model of the genesis of granitoid elevations East of the Kobylá nad Vidnavkou village. Two diverse hypotheses have been developed for the elevations’ origin in the literature: (1) glacial erosional sculpting into roche moutonnées, and (2) irregularities of the basal surface of weathering. Applying morphometrical research methods we could show that the elevation elongations strongly correlate with the preferred orientations of the fracture system of the Žulová granite. The studied elevations do not bear any characteristic micro- and/or macro-features of glacial modelling. Granitoid elevations in the studied area are therefore very plausibly built of exposed irregularities of the stripped basal weathering surface (etchplain) and could be denoted as basal knobs

Constraining long-term denudation and faulting history in intraplate regions by multisystem thermochronology: An example of the Sudetic Marginal Fault (Bohemian Massif, central Europe)

The Rychlebské hory Mountain region in the Sudetes (NE Bohemian Massif) provides a natural laboratory for studies of postorogenic landscape evolution. This work reveals both the exhumation history of the region and the paleoactivity along the Sudetic Marginal Fault (SMF) using zircon (U-Th)/He (ZHe), apatite fission track (AFT), and apatite (U-Th)/He (AHe) dating of crystalline basement and postorogenic sedimentary samples. Most significantly, and in direct contradiction of traditional paleogeographic reconstructions, this work has found evidence of a large Cretaceous sea and regional burial (to >6.5 km) of the Carboniferous-Permian basement in the Late Cretaceous (~95–80 Ma). During the burial by sediments of the Bohemian Cretaceous Basin System, the SMF acted as a normal fault as documented by offset ZHe ages across the fault. At 85–70 Ma, the basin was inverted, Cretaceous strata eroded, and basement blocks were exhumed to the near surface at a rate of ~300 m/Ma as evidenced by Late Cretaceous–Paleocene AFT ages and thermal modeling results. There is no appreciable difference in AFT and AHe ages across the fault, suggesting that the SMF acted as a reverse fault during exhumation. In the late Eocene–Oligocene, the basement was locally heated to <70°C by magmatic activity related to opening of the Eger rift system. Neogene or younger thermal activity was not recorded in the thermochronological data, confirming that late Cenozoic uplift and erosion of the basement blocks was limited to less than ∼1.5 km in the study area

Theology of earthquakes

The master thesis deals with importance and meaning of earthquakes as a natural process as well as natural disasters in areas where earthquakes cause heavy damage to lives or properties. The goal of the thesis is to answer the question whether God reveals himself and his divine actions in earthquakes provided that he discloses himself in all his creation in the natural world. A complete list of references on earthquakes in Bible has been compiled and it shows that earthquakes mostly precede or accompany very important events, theophany, and eschatological happening, which always point to God´s glory, power and magnificence. The thesis summarizes historical evolution of theodicy related to earthquakes as natural disasters. There is a paradigm shift from God´s responsibility to responsibility of humankind, in relation to structural sins of the rich against the poor who most suffer during the natural disasters. The thesis offers also synthesizing view on earthquakes as natural process, especially how they reflect God´s invisible characteristics, such as God´s power, glory, magnificence, freedom, wisdom, eternal activity, order, harmony, balance, and beauty

Vybrané metody morfostrukturní analýzy

Morphostructural analysis as a set of several partial methods addresses the explanation of relationship between the geological structure (lithology, structural setting) and the relief within the area. Particular methods are either based on field research or include morphometric methods and methods of remote sensing, which analyse and process interdisciplinary cartographic data as well as digital elevation model (DEM) within the GIS. Field work involves particularly mapping of structural landforms and the fluvial landforms which could be potentially related to neotectonic activity. Moreover, it involves joint and fault analysis compared with results of morpholineament analysis in order to learn their potential causal relationship. Morphometric methods evaluate parameters of relief elements and their relationships. The results of these methods facilitate a selection of model, potentially geodynamic areas, as well as they confirm, complete or specify the results of the field research on the mathematical base

Late Quaternary activity of slow-slip intraplate Mariánské Lázně fault as revealed by trenching and shallow geophysical survey; Bohemian Massif (Czech Republic, central Europe)

The NNW-SSE trending Mariánské Lázně Fault (MLF) zone is situated in the western part of the Bohemian Massif (Czech\nRepublic, central Europe) where it intersects NE-trending Cenozoic Eger rift. The northern segment of the MLF controls the\nmorphologically pronounced mountain front of Krušné hory Mts. and eastern limit of Cenozoic Cheb basin, which is famous for\nearthquake swarms (max. ML=4.6) and CO2 emanation. We performed 2D and 3D geophysical survey (electric resistivity\ntomography, ground penetration radar) and 3D trenching to look for large surface-rupturing prehistoric earthquake responsible\nfor pronounced moutain range front. Seven excavated and six hand-dug trenches revealed a complex geology and deformation\nat the study site probably as a result of right-lateral transpression during Late Quaternary. Two Holocene earthquakes 1150-590\nBC and 780-1000 AD were inferred from 14C dating of faulted Holocene colluvium with corresponding magnitudes Mw=6.7-7.0.\nThe latter one is the youngest documented surface-rupturing event in central Europe.\

History of the geomorphological research in the Jeseník region and its topic survey

The contribution deals with history of geomorphological researches done in the Jeseníky region

Some questions on morphotectonic development of the Sokolský hřbet Ridge in the Rychlebské hory Mts

The contribution deals with genesis of marginal slopes of the Sokolský hřbet Ridge in the Rychlebské hory Mts. and with evidence of their structural or probably fault origin

Terasy dolní Sázavy v úseku od Vrabčího Brodu po Kamenný Přívoz

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Selected analysis of morphostructure of NE part of the Rychlebské hory Mts

The contribution deals wit analysis of joint and fault systems as well as morpholineaments within the NE part of the Rychlebské hory Mts. and the Žulovská Hilly Land

Geomorphological research in the Sokolský hřbet Ridge in the Rychlebské hory Mts

The contribution deals with neotectonic activity in the Sokolský hřbet Ridge in the Rychlebské hory Mts. and with possibilities to measure recent tectonic movements, especially by means of deformometer TM-71