Directional analysis of drainage network and morphotectonic features in the south-eastern part of Bükk Region

The fracture deformations often result in linear morphological elements (lineaments, valleys) on the surface. In many cases, the direction of the lineaments and valleys can be well followed by the strike of the geological structural elements. Therefore, conclusions can be drawn from these directions for regional tectonic processes. Our work aimed to analyse the relationship between the valley and lineament network and the structural elements in the south-eastern part of Bükk Region. We prepared the theoretical drainage network map and lineament map of the area. The direction of the linear elements was examined separately on the eastern part of South-Eastern Bükk that is built up mainly by Mesozoic limestone and the eastern side of Bükkalja area covered by Neogene and Quaternary sediments. Structural geological surveys were also performed on seven sites to measure the strike of joint sets. These results were compared with the valleys’ direction in the 2 km wide area of the measurement sites. Based on our results, it can be stated that the development of the drainage network was influenced by the geological elements; however, there are local differences in the characteristics of the South-Eastern Bükk and Bükkalja. Our study confirmed that the study of linear morphological elements has great importance in the exploration of geological structural elements.

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Seismicity and development of Romashkino hydrocarbon field’s Almetyevskaya area

Georesursy ◽

10.18599/grs.2021.4.6 ◽

2021 ◽

Vol 23 (4) ◽

pp. 51-57

Author(s):

Igor Ognev ◽

Alexey Stepanov

Keyword(s):

Human Activities ◽

Active Zone ◽

Seismic Activity ◽

The South ◽

South Eastern ◽

Hydrocarbon Fields ◽

The Relationship ◽

Hydrocarbon Field

The relationship between the various human activities and seismic activity has become more evident in the last several decades. One of the important domains where such a relationship manifests itself is hydrocarbon fields’ development. South East Tatarstan (Russia) is a region where the link between seismicity and the development of the giant Romashkino hydrocarbon field has been established. The goal of the current study is to conduct the causative analysis between the seismic activity and the development of the Romashkino hydrocarbon field’s Almetyevskaya area which is located in the most seismically active zone of the south-eastern Tatarstan.

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Pliocene-Quaternary river-terrace sequences in intramontane basins in the south-eastern Alpine foreland (Slovenia): characterization of morphostratigraphy and provenance

10.5194/egusphere-egu21-4979 ◽

2021 ◽

Author(s):

Eva Mencin Gale ◽

Petra Jamšek Rupnik ◽

Miloš Bavec ◽

Mirka Trajanova ◽

Luka Gale ◽

...

Keyword(s):

Sedimentary Environment ◽

Early Pleistocene ◽

Tectonic Activity ◽

Middle Pleistocene ◽

Published Data ◽

Drainage Network ◽

The South ◽

South Eastern ◽

Alpine Foreland ◽

Intramontane Basins

This study focuses on the Pliocene-Quaternary sedimentary evolution of the fluvial systems in the Slovenj Gradec, Nazarje, Velenje, Celje, Drava-Ptuj and Kr&#353;ko Basins in the south-eastern Alpine foreland, Slovenia. The main aim was to determine the composition, morphostratigraphy, provenance, sedimentary environment and age of the deposits using geomorphological, sedimentological, geochemical, mineralogical and biostratigraphical methods. Pliocene-Quaternary sediments were deposited in fluvial (braided and wandering river systems) and alluvial/colluvial fan environments. The sediments are preserved in the terrace staircase sequences, formation of which is strongly controlled by tectonic activity. Based on geomorphological analyses, low-, middle- and high-level terrace groups were constrained and tentatively attributed to Late Pleistocene, Middle Pleistocene, and Plio-Early Pleistocene, respectively. The provenance analyses focused on the Plio-Early Pleistocene sediments and included lithological and microfacies analyses of the clasts. Based on the provenance analyses and published data, the long-term development of the drainage network was interpreted. Major changes occurred during the transition from Miocene-Pliocene and at the latest at Plio-Early Pleistocene the drainage network reached conformity with the present one. Overall, the spatial distribution of the Pliocene-Quaternary landforms revealed tectonic activity in intramontane basins during their development, from which the landscape evolution was deduced.&#160;

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FEATURES OF THE LITHOLOGICAL INTERPRETATION OF THE GIS OF THE BAZHENOV FORMATION IN THE SOUTH-EASTERN REGIONS OF WESTERN SIBERIA

Interexpo GEO-Siberia ◽

10.33764/2618-981x-2021-2-1-227-235 ◽

2021 ◽

Vol 2 (1) ◽

pp. 227-235

Author(s):

Svetlana V. Ryzhkova ◽

Mikhail A. Fomin ◽

Al’vina G. Zamirailova ◽

Elena A. Kostyreva

Keyword(s):

Western Siberia ◽

Organic Substances ◽

The South ◽

Bazhenov Formation ◽

South Eastern ◽

Relationship Of ◽

The Relationship

The article presents the results of revealing the relationship of siliceous, clay, carbonate and organic substances and pyrite from the types of electrical and radioactive logging. The influence of the content of the listed rock-forming components of rocks on the geophysical characteristics is described. The volume lithological model of the Archinskaya-47 well, constructed on the basis of established correlations, is presented.

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Interplay of volcanotectonic, sedimentary, and regional tectonic processes at Mount Etna’s submerged south-eastern flank

10.5194/egusphere-egu21-14689 ◽

2021 ◽

Author(s):

Morelia Urlaub ◽

Alessandro Bonforte ◽

Jacob Geersen ◽

Felix Gross ◽

Bruna Pandolpho

Keyword(s):

Sediment Transport ◽

Mount Etna ◽

Active Deformation ◽

Linear Feature ◽

South Eastern ◽

Eastern Flank ◽

Tectonic Processes ◽

Pressure Ridge ◽

Regional Tectonic ◽

Summit Region

Collapses of coastal and ocean island volcanoes can cause damaging tsunamis and thus pose ocean-wide hazards. To assess the collapse hazard of an unstable flank, a profound understanding of its structural setting and active deformation is essential. This knowledge is, however, often missing, especially for the remote and submerged offshore part of the edifice. Long before satellite-based techniques were available, observations of extensional structures in the summit region and transpressive to compressional structures farther downslope helped to constrain flank instability onshore at many volcanoes globally. Similar deformation structures are also expected offshore where they might be even better preserved due to the absence of anthropogenic influence, limited weathering and erosion. However, in the offshore realm structures related to flank instability are masked by and interact with other processes that act on underwater slopes, such as bottom currents, downslope sediment transport, and regional tectonics. Furthermore, the remote location of offshore flanks complicates geophysical, geomorphological, and geological investigations. Using (micro-) bathymetric and high-resolution seismic data we analyse the seascape forming processes at the Eastern Sicily continental slope at the foot of Mount Etna's unstable south-eastern flank. We untangle seafloor structures related to volcanotectonic, sedimentary, and regional tectonic processes. This allows singling out patterns and structures related to volcano flank instability, such as the lateral and outward boundaries of the unstable flank. We identify a strike-slip fault that changes its morphological appearance from a sharp linear feature atop a pressure ridge north of Catania Canyon to an almost smooth seafloor further downslope, where gravitational sediment transport outbeats volcanotectonic activity. Sediment transport from the continent to the abyss occurs along several canyons and channels that partly align with fault systems. Furthermore, uplift at the distant toe of Etna&#8216;s south-eastern flank may indicate compression from the downwards moving flank, while at the same time provoking erosional responses, e.g. landslides. This new information provides important constraints for kinematic models that seek to explain the drivers of flank instability. It also forms the base for future studies that will infer the styles and rates of offshore flank deformation from the geological record.

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Landslide protection of the ski resort “Mountain Air” on the Sakhalin Island

MATEC Web of Conferences ◽

10.1051/matecconf/201926504013 ◽

2019 ◽

Vol 265 ◽

pp. 04013

Author(s):

Sergey Matsiy ◽

Vladimir Matsiy

Keyword(s):

Sakhalin Island ◽

The South ◽

Retaining Structures ◽

Ski Resort ◽

South Eastern ◽

Geological Surveys

This article contains the results of engineering and geological surveys and geotechnical calculations made for the development of the sports complex STK "Mountain Air" in the south-eastern part of Sakhalin Island. Design and survey work is performed, as well as reconstruction and setup of the associated infrastructure of the complex, including the construction of ski slopes and cable-ways. The description of the designed supporting and retaining structures is given.

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Geoecological conditions in the Baltic sea in 2017

Океанология ◽

10.31857/s0030-1574591184-186 ◽

2019 ◽

Vol 59 (1) ◽

pp. 184-186 ◽

Cited By ~ 1

Author(s):

A. V. Krek ◽

M. O. Ulyanova ◽

E. S. Bubnova ◽

V. A. Krechik ◽

D. V. Ryabchuk ◽

...

Keyword(s):

Baltic Sea ◽

Bottom Sediments ◽

Gulf Of Finland ◽

The South ◽

Coverage Area ◽

South Eastern ◽

Geological Surveys ◽

The Baltic ◽

The Gulf Of Finland ◽

Eastern Baltic

In 2017, comprehensive geological, geophysical, hydrological and hydrochemical researches were conducted in the South-Eastern Baltic Sea and the Gulf of Finland. 1775 nautical miles of surveys were conducted using multibeam echosounder and profiler. Surface bottom sediments (156 samples), the upper undisturbed layer of pelitic sediments and bottom water (15 samples), 2 cores were taken. Laboratory analyzes were performed on pH (189), concentration of oxygen (246), suspended matter (286) and oil products (110). Microplastic was also collected in the water (118) and bottom sediments (45). Conducting comprehensive research in the South-Eastern Baltic Sea allowed us to record the weakening of the Major Baltic Inflow effects, followed by changes in the environmental conditions of the region. Geological surveys in the Gulf of Finland expanded the coverage area of the bottom of multibeam surveys and contributed to the refinement of the formation processes of linear and circular transgressions at the bottom.

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