Dynamic Tectonics and Karst

Kostov, Konstantin; Shanov, Stefan

doi:10.1007/978-3-662-43992-0

Cited by 21 publications

(10 citation statements)

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“…Cave survey and geomorphological mapping of the surface karst were used to obtain the structural data -faults and fractures (n=186) from an area of about 38 km 2 . We analyzed the type of faults and Riedel fractures according to their orientations and position with respect to principal displacements: the orogen-parallel normal faults, the major synthetic R and antithetic R' shears, and the minor synthetic P-fractures.…”

Section: Methodsmentioning

confidence: 99%

“…Caves may provide useful and novel evidences on the small-to large-scale tectonics, otherwise inaccessible from the surface, e.g. [2] and references therein. Conversely, tectonic facets such as fault sides or décollements (i.e., a type of thrust fault) which provided the path for cave-forming processes are able to provide new insights on speleogenesis.…”

Section: Introductionmentioning

confidence: 99%

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Cave morphology provides evidence of polyphase tectonics - an example from the Isverna karst system, South Carpathians

Tîrlă¹,

Drăguşin²,

Vlaicu³

et al. 2017

Proceedings of the 33rd Romanian Geomorphology Symposium

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Abstract-Passage morphology and well-preserved kinematic indicators in a limestone-mélange contact cave from the South Carpathians provide evidence of thrusting mechanisms that occurred during the Late Cretaceous nappe emplacement. Large-scale normal faults occurred during the Eocene to Oligocene orogen-parallel extension, were deformed during the Late Miocene dextral strike-slip movements, which shaped a typical Riedel geometry across the Isverna area. Comparative orientation analysis of structural and geomorphological features indicates that karstification processes were directed along the NE-SWoriented normal faults, subsequently dissected by NW-SEoriented R'-shears. Where conditions were favorable, minor synthetic P-fractures inherited the normal fault planes. This study outlines the role of karst and caves in general and contact caves in particular in providing information on the mechanisms that controlled the polyphase tectonic evolution of an orogen area.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cave morphology provides evidence of polyphase tectonics - an example from the Isverna karst system, South Carpathians

Tîrlă¹,

Drăguşin²,

Vlaicu³

et al. 2017

Proceedings of the 33rd Romanian Geomorphology Symposium

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“…The cave has developed in the massive light Tithonian limestones of the Brestnitsa Formation. This formation has been subjected to intensive karstification and faults in the vicinity of the cave are often expressed morphologically on the surface (Shanov & Kostov 2015). The entrance is found at 510 m a.s.l., its total length is 205 m, and its denivelation is 40 m. Inside the cave, considered to be one of the most beautifully decorated in the country, one large gallery separates five chambers.…”

Section: Saeva Dupkamentioning

confidence: 99%

“…This cave is of particular seismotectonic significance as it hosts a number of indicative features such as cave breccia, fallen stalactites, and dislocated or cracked stalactones. The cave breccia has been interpreted as a result of a catastrophic paleo-earthquake while the fallen stalactites have been interpreted as reflections of reactivation of the fault to the south of the cave during the Pleistocene (Shanov & Kostov 2015).…”

Section: Saeva Dupkamentioning

confidence: 99%

Evidence of a plate-wide tectonic pressure pulse provided by extensometric monitoring in the Balkan Mountains (Bulgaria)

Briestenský¹,

Rowberry²,

Štemberk³

et al. 2015

Geologica Carpathica

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Abstract:The EU-TecNet monitoring network uses customized three-dimensional extensometers to record transient deformations across individual faults. This paper presents the first results from two newly established monitoring points in the Balkan Mountains in Bulgaria. The data from Saeva Dupka, recorded across an EEN-WWS striking fault, show sinistral strike-slip along the fault and subsidence of the southern block. Much of the subsidence occurred around the time of the distal M W = 5.6 Pernik Earthquake. An important transient deformation event, which began in autumn 2012, was reflected by significant compression and following extension, across the monitored fault. The data from Bacho Kiro, recorded across a NE-SW striking fault, show sinistral strike-slip along the fault and subsidence of the north-western block. The same important deformation event was reflected by changes in the strike-slip, dip-slip, and horizontal opening/closing trends. These results have been compared to data from other monitoring points in the Western Carpathians, External Dinarides, and Tian Shan. Many of the sites show evidence of simultaneous displacement anomalies and this observation is interpreted as a reflection of the plate-wide propagation of a tectonic pressure pulse towards the end of 2012.

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“…Oak forests of the lower mountain zone were almost completely destroyed. These territories belonged to rural and collective-farm forests and were actively exploited [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Transformation of High-Mountain Landscapes (Study of Lagonaki, North-West Caucasus)

Nazarenko¹

2019

Proceedings of the VIII Science and Technology Conference “Contemporary Issues of Geology, Geophysics and Geo-Ecology of the No

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At the present time, in different regions of the world the problem of reducing the area and fragmentation of natural ecosystems is extremely important. The characteristic of the specially protected Lagonaki territory is given. It is noted that the decline in landscape diversity is often accompanied by the loss of species at different levels. Most natural communities are changed by man. The intensity of anthropogenic impact on different natural communities in the region varies significantly. The characteristic of the highlands Lagonaki is given. There is a decrease in productivity of meadows from 34 to 4.1 t/ha. The Lagonaki highland has vast resources for the development of various types of tourist activities. Among these resources, there are allocated relief and geological structures, defining a significant variety of landscapes, the presence of attractive and picturesque recreational facilities.

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Dynamic Tectonics and Karst

Cited by 21 publications

References 0 publications

Cave morphology provides evidence of polyphase tectonics - an example from the Isverna karst system, South Carpathians

Cave morphology provides evidence of polyphase tectonics - an example from the Isverna karst system, South Carpathians

Evidence of a plate-wide tectonic pressure pulse provided by extensometric monitoring in the Balkan Mountains (Bulgaria)

Transformation of High-Mountain Landscapes (Study of Lagonaki, North-West Caucasus)

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