scholarly journals Tectonic structure of the zone of conjugation of the Eastern European piatform and the Scythian plate (territory of the Rostov region)

2019 ◽  
pp. 16-23
Author(s):  
A. G. Granovsky ◽  
N. V. Granovskya
Keyword(s):  
The South ◽  
Tectonic Structure ◽  
Tectonic Structures ◽  
East European ◽  
Voronezh Anteclise ◽  
The North ◽  
Rostov Region ◽  
Scythian Plate ◽  
Tectonic Development ◽  
Paleozoic Rocks

The tectonic structure in the junction zone of the East European and Scythian platforms of Rostov region has been considered. Different ages and ranks of Precambrian and Phanerozoic tectonic structures, their correlation within the studied area and tectonic zoning scheme are presented. The structure and composition of rock complexes, formation conditions and their tectonic development stages are characterized. The East European platform within the described territory is represented by two disconnected fragments of the Russian Plate. The northern fragment is the south-eastern part of the Voronezh anteclise, located to the north of the Donetsk-Astrakhan tectonic suture. The southern fragment corresponds to the eastern dipping of the Pre-Paleozoic rocks of the Ukrainian shield, forming the buried Rostov ledge. The Scythian (Epihercynian) platform located to the south of the Donetsk-Astrakhan tectonic suture, is represented by a folded Paleozoic (in some places pre-middle-Jurassic) base and a platform cover of Mesozoic-Cenozoic rocks. The part of the Scythian platform is the exposed Donbass area, where Paleozoic rocks of the base of the platform protrude to the surface and form the Donetsk ledge. The northern part of the Scythian plate, which extends over the buried folds system of Donbass, is allocated from the south by Manych over-fault deflections and called «Karpinsky shaft». The system of the Manych deflections and the territory located to the south compile the Ciscaucasian part of the Scythian plate.

IDENTITY OF THE POPULATION OF THE MULTIETHNIC SOUTH OF RUSSIA IN THE CONTEXT OF SOCIETAL INTEGRATION OF THE MACROREGION

2021 ◽  
Vol 22 (3) ◽  
pp. 136-146
Author(s):  
Liudmila Klimenko ◽  
Zuriet Zhade ◽  
Irina Petrulevich
Keyword(s):  
Complex Structure ◽  
Northern Caucasus ◽  
Sociological Research ◽  
The South ◽  
Interethnic Relations ◽  
The North ◽  
Rostov Region ◽  
The Republic ◽  
Ethnocultural Diversity ◽  
Russian Identity

The South of Russia is characterized by a complex structure, a contradictory history of interethnic relations and active migration processes. All of the above creates difficulties for the region’s societal integration and strengthening of macroregional ties. The state’s national strategy presupposes the formation of a positive civic identity of Russia’s population while preserving its ethnocultural diversity. The self-determination processes of ethnosocial groups in the post-Soviet space have revealed a competition between the civic and ethnic components in the identity of the national republics’ population. Therefore, the structural and dynamic dimension of the identity of the multiethnic population in the South of Russia is being actualized. The article empirically characterizes the complex identity of the population in the multiethnic subregions of the Russian South in terms of the region’s societal (macrolevel) integration. Based on the sociological research conducted in early 2021 in the Rostov region, the Republic of Adygea and the Republic of Daghestan, the nature of the local residents’ identity along the following axes is analyzed: (1) civic, regional and ethnic identifications; (2) I- and we-identifications; (3) primordial and constructed forms of identity. Modern sociological measurements demonstrate that in the structure of cognitive I-identifications of the population of the Russian South, primordial (gender, marital status) and constructed civic (Russian citizen) identity components prevail. In the Rostov region, the core of the respondents’ identity comprises a macroregional component (resident of the South of Russia). Whereas in the North Caucasian republics in question, ethnic (in Adygea and Daghestan), confessional and republican (in Daghestan) identifications compete with the all-Russian identity. At the emotional we-identity level, residents of the Russian South most often indicate affinity with groups of everyday communication (people of the same generation and occupation) and supra-ethnic constructed communities (citizens of Russia). A strong orientation towards the South Russian identity is also manifested among the Rostov residents, while ethnic, religious and republican identification complexes have greater significance in the national republics of the Northern Caucasus. Comparative analysis with the results of 2010-2011 studies (conducted using identical instruments in the Rostov region and Adygea) shows a stable predominance of constructed civic and macroregional identities in the subregions dominated by the Russian population, and ethnic and North Caucasian identities—in the republican segment. The continuing discrepancy in the identity content structure in the ethnoterritorial segments of the Russian South may have disintegration potential and slow down the formation of a supra-ethnic societal integrity of a multi-component macroregion.

scholarly journals Tectonic structure and volcanic centers at the eastern edge of the aegean volcanic arc around Nisyros island

2001 ◽  
Vol 34 (1) ◽  
pp. 289 ◽  
Author(s):  
D. PAPANIKOLAOU ◽  
P. NOMIKOU
Keyword(s):  
Volcanic Activity ◽  
Recent Volcanic Activity ◽  
Volcanic Area ◽  
The South ◽  
Tectonic Structure ◽  
General Direction ◽  
Volcanic Arc ◽  
Sedimentary Deposits ◽  
The North ◽  
Eastern Edge

The recent volcanic activity at the eastern edge of the Aegean Volcanic Arc is limited within a neotectonic graben structure which is developed in an E-W general direction between the alpine basement of Kos Island to the north and the alpine basement of Tilos Island to the south. In between the boundary faults of the neotectonic graben there is an extended volcanic area comprising several individual volcanic centers, which penetrate through the thick post-alpine sedimentary deposits of the graben.

Classification of alder forests on sandy massifs in the Rostov region

2015 ◽  
pp. 108-128 ◽  
Author(s):  
T. A. Sokolova
Keyword(s):  
Vascular Plant ◽  
Steppe Zone ◽  
East European Plain ◽  
Character Species ◽  
East European ◽  
Alder Forest ◽  
The North ◽  
Rostov Region ◽  
Don River ◽  
Data Book

The results of geobotanical survey of Alnus glu­ti­nosa arena forests at three sandy areas within the North of the Rostov and the West of the Volgograd regions of the Russian Federation are given. The territory is situated at the East European Plain where steppes are zonal type of vegetation. This territory is well developed agricultural region with highly transformed lands. Nevertheless, the fragments of natural vegetation support rather high floristic and phytocoenotic diversity and they contain a number of endemic species also (Fedyaeva, 2002). Small patches of alder forest stands generally occur in roundish and tape-like depressions on the second and third sandy terraces of the Don River. These woods were in a focus of interest of many scientists, e.g. G. M. Zozulin (1992) who studied these more than 30 years. But the special papers including the ecologo-floristic characteristic of natural arena alder forests were missing up to now. According to vegetation classification based on the Braun-Blanquet approach (Braun-Blanquet, 1964) the alder forests are referred to four formerly described associations of the alliances Alnion incanae and Alnion glutinosae: Aceri tatarici–Alnetum glutinosae, Urtico dioicae–Alnetum glutinosae, Ficario–Ulmetum minoris and Carici elongatae–Alnetum glutinosae. Proposed 4 subassociations and 10 variants reveal the syntaxonomical structure of these associations. The comparative analysis of syntaxa of the forests of the alliances Alnion incanae and Alnion glutinosae within the Rostov region, in the Russian Southern Nechernozemje, in Ukraine and the Central Europe was done. It is emphasized that the differentiation of the alder communities is complicated due to their intrazonal positions in a landscape. There are a very few character species at the association level. At the same time a lot of plant communities reflect the ecotone features between the meso-hygrophyte forests of the class Querco-Fagetea and the mire woods of the class Alnetea glutinosae. Therefore we had to apply both the classical and nonclassical syntaxonomical analysis (Mirkin et al., 2009). It is obvious that the alder forests syntaxonomy at the lowest level will be specified in the nearest future. There are noticeable differences in species composition of studied communities depen­ding on their position in landscape. For example, there are communities with a large amount of species of the class Querco-Fagetea occurring in the forest margins and on slopes. The role of species of the class Alnetea glutinosae increases on the gradient from the outskirts of wood massifs to their central parts in lowlands also. Species of the alliance Alnion incanae are widely presented in all communities. Although the described communities are small in size and rather rare on the territory studied they contain 27 vascular plant species included in the Red Data Book of the Rostov region (Krasnaya…, 2004). These woods considerably increase the biodiversity within the steppe zone as well. The organization of a number of nature reserves is necessary to protect the certain types of alder forests.

scholarly journals Research on the high-metamorphic complexes of the Agto area

1968 ◽  
Vol 15 ◽  
pp. 19-21
Author(s):  
E Bondesen
Keyword(s):  
Granulite Facies ◽  
Amphibolite Facies ◽  
The South ◽  
Field Mapping ◽  
Metamorphic History ◽  
The North ◽  
Field Season ◽  
Tectonic Development ◽  
New Research ◽  
Metamorphic Complexes

Mapping in the Agto area was continued in 1967, the second season of new research in this area; five teams were in the field mapping in nine individual areas. The main object of the mapping is to elucidate the relations between the Isortoq granulite facies complex in the south and the amphibolite facies gneisses of the Egedesminde complex in the north (Ramberg, 1949). AIready from the first field season (Bondesen, 1966, p. 20) it was clear that the problem essentially concerned areas with contrasted tectonic development and style besides metamorphic history and degree.

scholarly journals The structure of the lithosphere, tectonics and evolution of the Scythian Plate and adjacent structures in the section of the Bs05-22 profile (according to 2-d density modeling)

2020 ◽  
Vol 16 (3) ◽  
pp. 13-29
Author(s):  
M. KOZLENKO ◽  
Yu. KOZLENKO
Keyword(s):  
Transition Zone ◽  
Black Sea ◽  
The South ◽  
Southern Boundary ◽  
East European ◽  
Scythian Plate ◽  
Adjacent Structures ◽  
Crystalline Crust ◽  
Wide Transition ◽  
West Black Sea

A density model was built along the Bs05-22 profile, which made it possible to identify individual blocks with different crustal parameters. The consolidated crust of the East European Platform (EEP) has a “key” structure. The southern boundary of the EEP is clearly fractured and falls to the south at an angle of about 83° The South Ukrainian monocline (SUM) covers not only the basement of the EEP but also the northern part of the Scythian Plate (SP). The central part of SP block overlapped by the SUM is characterized by the maximum capacity of the folded-metamorphic base. The axial part of the Karkinit Trough (KT) has a structure typical for riftogens. The rift is practically one-sided with a width of 6.5 km. The southern slope of the KT developed as a result of the falling of the surface by the mechanism of the planj-principle. The border between the Karkinit Trough and the Kalamitsky rise (KR) is clearly defined by the Sulinsko-Tarkhankutsk fault. The core of the KR is a sufficiently massive body of lenticular shape with a density corresponding to the Taurian series of the Mountainous Crimea. There is a narrow transition zone between KT and Edge step (ES). The southern edge of the Scythian plate is a 25,0 km wide transition zone to West-Black Sea depression (WBSD). Modeling established the extension of the “granodiorite” layer into the WBSD for 100 km. The crust thickness within the EEP is 44,0 km, on the Scythian plate under SUM is average 43.5 km, 37,0 km within KT and 33,0 km under ES, in the West Black Sea basin 28,7 km under the foot of the Upper Cretaceous continental slope and 21,5 km at the southern edge of the profile. In the model chosen, the density of tectonic faults in the EEP is 0,06 and in the SP — 0,14 per 1,0 km. Vertical shifts of crystalline crust blocks at SP reach 5,5 km, which is almost three times higher than at the southern flank of the EEP. The most of disjunctions are vertical and have transcrust stretch. The structure of the Earth’s crust obtained as a result of modeling allowed us to draw some conclusions about the Meso-Cenozoic evolution of the studied region in the profile section. At the southern edge of the EEP in the Late Cimmerian tectogenesis epoch there has been a revitalization, in the Alpine phase this structure was generally passive. Activity of the Cimmerian epoch was observed throughout the Scythian plate: within the Kalmitsky rise from the early phase, and in the Karkinit Trough and on the Edge step from the late Cimmerian phase. The periods of activation on the KT and KR are traced up to the Sawa phase, and on the ES — to the Walach phase of the Alpine tectogenesis inclusive.

scholarly journals Guide to excursion in Bornholm. 8th annual working meeting in Sweden and Denmark of Project Tornquist/Southwest border of the East-European Platform

1984 ◽  
Vol 3 ◽  
pp. 1-84
Author(s):  
Peter Gravesen ◽  
Merete Bjerreskov
Keyword(s):  
East European Platform ◽  
Border Zone ◽  
Precambrian Basement ◽  
The South ◽  
Quaternary Deposits ◽  
East European ◽  
The North ◽  
Basement Rocks ◽  
Melt Water ◽  
Annual Working

Bornholm is the easternmost island of Denmark and rather far away from the rest of the country (Fig. 1). Situated in the south-eastern part of the Fenno-Scandian Border Zone (Tornquist Line) with the Fenno-Scandian Precambrian Shield towards the north and the Danish-Polish Subbasin towards the south, Bornholm has a complex tectonic and sedimentological history (like Scania). The pre-Quaternary surface consists of Precambrian basement rocks in the northern part of the island, whereas Palaeozoic and Mesozoic sediments, often separated from the basement by faults, are found in the western and southern part (Fig. 2). The pre-Quaternary rocks are all covered by Quaternary deposits, mainly tills and melt water sediments.

V.—The Inclination of Overfolds in Relation to the Larger Folds in which they are Contained

1907 ◽  
Vol 4 (11) ◽  
pp. 506-509 ◽  
Author(s):  
George Hickling
Keyword(s):  
The South ◽  
Tectonic Structure ◽  
Great Uncertainty ◽  
The North ◽  
Apparent Thickness ◽  
Region I ◽  
Constant Direction ◽  
History Of ◽  
True Structure ◽  
Possible Cause

While spending a few days recently examining the sections on the North Devon coast, with a view to obtaining a clearer conception of the tectonic structure of that region, I was deeply impressed by the great number of minor overfolds and with the great uncertainty in the relations of the various beds thereby brought about. In many cases where the dip appears to be constantly to the south, through a considerable thickness of strata, closer examination shows repeated isoclinal folds. The western face of Little Hangman Hill at Combe Martin exhibits such a condition very well. Throughout the whole coast which I examined, from Combe Martin to the southernmost part of Bideford Bay, the axes of the minor folds are inclined to the north in this way, so as to frequently produce the appearance of steady southern dip and greatly to increase the apparent thickness of the strata. In speculating as to the possible cause of the constant direction in which the axes of these folds are inclined, an explanation occurred to me which I believe to be the correct one, and which may be applied generally to a large number of cases. As I have been unable to find it in the works I have been able to consult, it may be desirable to publish it, since it may aid considerably the elucidation of the true structure and history of complicated districts.

scholarly journals CHRONOLOGY OF WESTERN ASIAN AND TRANSCAUCASIAN ARTIFACTS SIMILAR TO THE FORE-CAUCASUS BRONZE ADORNMENTS OF THE FIRST HALF OF III MILLENNIUM BC

2020 ◽  
Author(s):  
А.А. Ковалев
Keyword(s):  
Precious Metals ◽  
North Caucasus ◽  
The South ◽  
South Caucasus ◽  
East European ◽  
The North ◽  
Western Asia ◽  
The Absolute

В статье приведены данные об абсолютной хронологии комплексов Передней Азии и Закавказья, содержащих аналогии предкавказским бронзовым «украшениям» перв. пол. III тыс. до н. э. Наиболее ранние из них относятся к концу раннего – началу среднего Урука: это золотые кольцевидные и дисковидные медаль­оны без орнамента. Возможно, традиция изготовления этих ритуальных по своей сути предметов могла опосредованно повлиять на формирование традиции изготовления предкавказских кольцевидных и дисковидных медальонов. В комплексах позднего куро-аракса (около 2800–2600 гг. до н. э.) в Закавказье зафиксировано появление простейших стерженьковых подвесок, что может быть объяснено влиянием северных культур, где эти подвески получили широкое распространение с рубежа IV–III тыс. до н. э. О влиянии со стороны Предкавказья говорят и находки в закавказских комплексах второй трети III тыс. до н. э. ряда уникальных предметов «степных» форм (медальоны, костяные молоточковидные булавки, выпуклые пунсонные бляхи и т. п.). С середины III тыс. в Передней Азии распространяются подобия молоточковидных булавок, стерженьковых (грибовидных) подвесок, медальонов, пунсонных блях. В царских могилах Ура и других комплексах периода РДIII, а также Аккада найдены крупные медальоны из драгоценных металлов. Эти медальоны, как и другие престижные предметы, начинают украшать имитацией перевитого шнура. Мотив шнура в тот же период характеризует беденскую культуру в Закавказье. Все это свидетельствует об усилении северного влияния, возможно, вплоть до проникновения в Переднюю Азию групп населения из Предкавказья. The article presents data on the absolute chronology of the closed complexes and sites of Western Asia and the South Caucasus containing artifacts similar to North-Caucasian bronze adornments attributed to the East-European Steppe Middle Bronze period (first half of III mill. BC). The earliest analogies belong to the final Late – beginning of the Middle Uruk: gold ring-shaped and discoid tanged medallions without ornamentation. Possibly, the tradition of making these items could indirectly influence the formation of the tradition of manufacturing the Fore-Caucasian ring-shaped and discoid tanged medallions. Excavations of late Kura-Araxes (2800–2600 BC) sites in the Transcaucasia show the appearance of the simplest mushroom-shape pendants, which indicates a northern impact. Also about the influence from the North-Caucasus speak evidence in the Transcaucasian complexes of the second third of the 3rd mill. BC a number of unique artifacts of «steppe» forms (medallions, bone hammer-shaped pins, bulging punching badges, etc.). Beginning in the middle of III mill. BC, artifacts similar of hammer-shaped pins, rod-shaped (mushroom-shaped) pendants, tanged medallions, punching badges spread in the Western Asia. Large tanged medallions made from precious metals were found in Royal graves of Ur and other complexes belonged to the EDIII and Akkad periods. These medallions and other prestigious jewelery objects were beginning to be decorated with imitation of twisted «cord». The motif of the cord in the same period characterizes the Bedeni culture in the South Caucasus. This shows an increase in northern influence, perhaps even to the penetration of groups of people from North Caucasus into Western Asia.

Tectonic Structures in the Devonian Rocks near Plymouth, Devon

1962 ◽  
Vol 99 (3) ◽  
pp. 208-226 ◽  
Author(s):  
W. K. Fyson
Keyword(s):  
Early Initiation ◽  
The South ◽  
Tectonic Structures ◽  
The North

AbstractMinor folds in slates and sandstones are upright in the south and northerly overturned towards the north, and plunge approximately E.N.E. and W.S.W. towards three major N.W.–S.E. dextral faults. The folds are monoclinal and angular; regardless of attitude, the short limbs lie on the northerly sides of anticlines. Both slaty and fracture cleavages tend to parallel axial planes and local directions of extension. Similarly, the vertical axial planes may closely parallel those of major folds.Boudins and W.N.W.–E.S.E. dextral oblique faults indicate extension along fold hinges, N.W.–S.E. dextral cross faults a change to N.–S. compression. Folded basic dykes parallel to faults and joints suggest early initiation of the fractures.

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