scholarly journals STRUCTURE OF THE LARGE CAUCASUS – THE RESULT OF THE GENTLY SLOPING THRUST OF THE SCYTHIAN PLATE EARTH’S CRUST ON THE CONSOLIDATED CRUST OF THE TRANSCAUCASIAN MICROS-PLATES

Author(s):  
А.Г. Шемпелев ◽  
С.У. Кухмазов ◽  
Х.О. Чотчаев ◽  
Л.Н. Невский

Приводятся краткие сведения о пересечениях глубинными геофизическими исследованиями структуры Большого Кавказа и результаты работ последних лет вдоль Адыгейского профиля (Дагомыс Абад-зехская Гиагинская), где впервые с равномерным шагом наблюдений получена комплексная геофизическая характеристика разреза земной коры в крест всей структуры орогена. На основании фактических материалов МОВЗ, МТЗ и гравимагнитных съёмок выделяются отдельные элементы структуры Большого Кавказа, как части Альпийского коллизионного пояса, очевидно возникшей при пологом надвиге с севера земной коры Скифской плиты на консолидированную кору закавказских микроплит. Brief information about the intersections with deep geophysical studies of the large Caucasus structure is given and the results of the last years works along the Adygea profile (Dagomys-Abadzekhskaya-Giaginskaya), where for the first time with the even step of observations obtained the complex geophysical characteristic of the earths crust section into the cross of the entire structure of orogen. On the factual materials basis MWEDE, MTS and gravimagnetic surveys the separate elements of the structure of the large Caucasus are separated as the part of the Alpine collision belt, which obviously arose with the gently sloping thrust from the north of the scythian plate earths crust on the consolidated crust of the Transcaucasian micros-plates

Author(s):  
С.У. Кухмазов ◽  
Х.О. Чотчаев ◽  
А.Г. Шемпелев

Геофизические наблюдения вдоль Чегемского профиля (перевал Китлод – г. Буденновск) являются продолжением глубинных исследований структуры Большого Кавказа комплексом геофизических характеристик разреза земной коры в крест всей структуры орогена. На основании фактических материалов МОВЗ, МТЗ и гравимагнитных съёмок выделяются отдельные элементы структуры Большого Кавказа, как части Альпийского коллизионного пояса, очевидно возникшей при пологом надвиге с севера земной коры Скифской плиты на консолидированную кору закавказских микроплит. Geophysical observations along the chegemsky profile (pass Titled - Budennovsk) are a continuation of the deep studies of the structure of the greater Caucasus the complex geophysical characteristics of the section of the earth crust in the cross the entire structure of the orogen. On the basis of actual materials of the method of exchange waves of earthquakes, the method of telluric current and gravity-filming separate elements of the structure of the greater Caucasus as part of the Alpine collisional belt, obviously occurred when the canopy on thrusting from the North of the earth’s crust of the Scythian plate in the consolidated crust of the Transcaucasian microplate.


Author(s):  
А.Г. Шемпелев ◽  
С.У. Кухмазов ◽  
М.А. Компаниец ◽  
К.С. Харебов ◽  
Х.О. Чотчаев ◽  
...  

Несколькими организациями в последние десятилетия были выполнены региональные геофизические исследования различными методами в пределах Северного Кавказа. Вдоль Чегемского профиля (перевал Китлод – г. Буденновск) впервые к северу от зоны сочленения структур Большого Кавказа со Скифской плитой получены две чёткие субгоризонтальные сейсмические границы, разделяющие, вероятно, платформенный чехол, переходный комплекс и консолидированный фундамент. Платформенный чехол, представленный палеозойскими отложениями большой мощности, по аналогии со многими территориями мира, где уже обнаружены и разведаны уникальные месторождения нефти, включая шесть залежей углеводородов, в числе которых и газоконденсатное Кармалиновское месторождение в зоне Передового хребта, может оказаться перспективным на нефтегазовые структуры. Результаты глубинных геофизических работ последних лет могут скорректировать направление поисков углеводородов в регионе. Известные в этом районе Предкавказья восточнее Чегемского профиля нефтегазоносные структуры осадочного чехла приурочены к выделяемым по геофизике поднятиям в консолидированной коре или к их краевым частям. Это даёт основание ожидать наличие углеводородов, вероятно, в материнских палеозойских образованиях Чернолесской впадины, а также соответственно новые перспективные участки и в осадочном чехле по её обрамлению. Several organizations in recent decades have carried out regional geophysical studies by various methods within the North Caucasus. Along the Chegem profile (the Kitlod Pass – town of Budennovsk), for the first time to the north of the junction zone of the Greater Caucasus structures with the Scythian plate, two distinct subhorizontal seismic boundaries, probably sharing a platform cover, a transitional complex and a consolidated foundation have been obtained. The platform cover, represented by large Paleozoic deposits, by analogy with many areas of the world where unique oil deposits, including six hydrocarbon deposits, and the gas condensate Karmalinovskoye deposit in the zone of the Forward Ridge, have already been discovered and explored, may prove promising for oil and gas structures. The results of deep geophysical studies of recent years can correct the direction of hydrocarbon exploration in the region. The oil-and-gas-bearing structures of the sedimentary cover, known in this region of the Ciscaucasia to the east of the Chegem profile, are confined to uplifts in geophysics in the consolidated crust or to their marginal parts. This gives grounds to expect the presence of hydrocarbons, probably in the parent Paleozoic formations of the Chernoslavskaya depression, and also, respectively, new promising sites in the sedimentary cover along its framing.


1906 ◽  
Vol 41 (1) ◽  
pp. 53-87
Author(s):  
T. J. Jehu

The area embraced in this paper consists of that part of Pembrokeshire which lies to the north and north-east of St Bride's Bay. Bounded on the west by St George's Channel and on the north by Cardigan Bay, it extends to the north-east as far as the mouth of the river Teifi, near Cardigan.That part of the country which lies in the immediate neighbourhood of St David's has, through the laborious researches of the late Dr Hicks and others, become well-known to geologists, and may now be regarded as classic ground. The solid geology of this promontory has given rise to much discussion, and has, perhaps, attracted more attention than that of any other part of the Principality. The reason for this great interest is to be sought in the facts that the rocks of this area are of a very great antiquity, and that the sedimentary series contain the remains of some of the earliest organic forms yet found in the earth's crust, whilst the igneous rocks are also displayed in great abundance and variety, and present us, in the words of Sir Archibald Geikie, with “the oldest well-preserved record of volcanic action in Britain.”


1883 ◽  
Vol 10 (8) ◽  
pp. 348-356
Author(s):  
Charles Ricketts

The Carboniferous Limestone of the north-west of England was formed in a bay separated from another marine area farther south by a narrow isthmus and promontory never submerged, extending, as Professor Jukes pointed out, in “a band of country running east and west across England from Leicestershire, through Warwickshire, South Staffordshire, North Shropshire into Montgomeryshire,” and to the mountainous district of North Wales.


2020 ◽  
Vol 34 (2) ◽  
pp. 209-232
Author(s):  
Mark Carlotto

In a previous study of over two hundred ancient sites, the alignments of almost half of the sites could not be explained. These sites are distributed throughout the world and include the majority of Mesoamerican pyramids and temples that are misaligned with respect to true north, megalithic structures at several sites in Peru’s Sacred Valley, some pyramids in Lower Egypt, and numerous temples in Upper Egypt. A new model is proposed to account for the alignment of certain unexplained sites based on an application of Charles Hapgood’s hypothesis that global patterns of climate change over the past 100,000 years could be the result of displacements of the Earth’s crust and corresponding shifts of the geographic poles. It is shown that over 80% of the unexplained sites reference four locations within 30° of the North Pole that are correlated with Hapgood’s hypothesized pole locations. The alignments of these sites are consistent with the hypothesis that if they were built in alignment with one of these former poles they would be misaligned to north as they are now as the result of subsequent pole shifts.


2017 ◽  
Vol 50 (3) ◽  
pp. 1545 ◽  
Author(s):  
S. Bitharis ◽  
A. Fotiou ◽  
C. Pikridas ◽  
D. Rossikopoulos ◽  
S. Pavlides ◽  
...  

The contribution of GPS networks in monitoring seismic events is important because they can provide a direct geometrical information on the Earth's crust using satellite observations In this study position displacements of permanent GPS stations are determined due to intense seismic events in the North Aegean area after the strong earthquake on May 24, 2014. The horizontal coseismic displacements for the Samothrace Island were estimated at 9.4 cm and for Lemnos Island at 5.2 cm respectively. A study period of seven days was enough to show that the deformation evolved into two days.


Author(s):  
V. M. Makeev ◽  
N. V. Makarova ◽  
T. V. Sukhanova

The article deals with the internal deep structure of the earth's crust of the East European platform and the surface of the mantle lithosphere. The presented charts of the three main layers of the earth's crust — the lower, middle and upper and the surface of the mantle lithosphere — for the first time identified deformation by changing the thickness of the layers. Deformations are compared on all layers that allowed to allot the active center, the main (through) and local (developed in separate layers) areas. The boundaries of these regions are active zones of different ranks. The observed end-to-end development of strain from layer to layer or expression of some of them only in separate layers indicates on the sub-horizontal stratification and vertical divisibility of the earth's crust. Deformations of the deep layers are compared with the latest near-surface platform structures. This made it possible to establish a connection of near-surface deformations with deep ones and to consider the latter as the latest. These studies are relevant for solving fundamental problems of the origin of new structures and a number of practical problems.


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