Abstract
The paper is concerned with the results of the detailed study of dislocations in the Pliocene-Quaternary loose sediments exposed as cliffs extending for ∼30 km along the rectilinear shore of Kolguev Island. According to seismic data, this lineament is related to the Coastal Fault in the lower part of the sedimentary cover. A system of faults longitudinal, diagonal, and transverse relative to the shoreline is established from observations at the cliffs. Their arrangement in plan view corresponds to the geometry of the right-lateral shear zone, the axis of which almost coincides with the shoreline. This has allowed us to identify the faults as secondary disturbances in the region of dynamic effect of the Coastal Fault in the basement. The kinematics of the secondary faults and their dip azimuth are consistent with echeloned geometry in plan view. The low-angle dip of the reverse-strike-slip faults observed at the outcrops is caused by their near-surface flattening toward the subsided block. The shallow-seated dislocations are related to ductile lateral shear in the vertical plane. The lower layers of the sedimentary cover mimic the horizontal movements in the basement more closely than the upper layers. The data obtained indicate high neotectonic activity of the Barents Sea shelf and specify the geodynamic setting of the region in the Pliocene and Quaternary.
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References
V. S. Burtman, A. V. Luk’yanov, A. V. Peyve, and S. V. Ruzhentsev, “Horizontal Movements along Faults and Some Methods of Their Study,” in Trudy GIN AN SSSR (Moscow, 1963), Vol. 80, pp. 5–33 [in Russian].
V. P. Vodolazskaya, V. N. Ivanov, G. A. Petrov, et al., Explanatory Notes to the State Geological Map of the Russian Federation, Scale 1: 1000000 (Third Generation), the Uralian Series, Map Sheet R-40 (VSEGEI, St. Petersburg, 2005) [in Russian].
Gzovsky, M.V., Principles of Tectonophysics (Nauka, Moscow, 1975).
G. N. Gogonenkov, A. S. Kashik, and A. I. Timurziev, “Horizontal Shears of Basement in Western Siberia,” Geol. Nefti Gaza, No. 3, 3–11 (2007).
Map of Faults in the Territory of The USSR and the Adjacent Countries on a Scale of 1: 2500000, Ed. by N. A. Belyaevsky and V. A. Unksov (Aerogeologiya, Moscow, 1980) [in Russian].
N. V. Koronovsky, G. N. Gogonenkov, M. A. Gon- charov, A. I. Timurziev, and N. S. Frolova, “Role of Shear along Horizontal Plane in the Formation of Helicoidal Structures,” Geotectonics, 43(5), 379–391 (2009).
R. B. Krapivner, “Stratigraphy of Recent Sedimentary Rocks in the Basin of the Pechora River from the Kama-Pechora-Vychegda Drainage Divide to the Mouth of the Tsil’ma River,” in Stratigraphy and Correlation of the Pliocene and Pleistocene Rocks in the Northern and Southern Foreural Region (Inst. Geol., Ufa, 1976) [in Russian], pp. 90–141.
R. B. Krapivner, Rootless Neotectonic Structural Elements (Nedra, Moscow, 1986) [in Russian].
R. B. Krapivner and A. I. Yudkevich, “Origin of the Kanev Dislocations and Their Implications for Hydrotechnical Constructions,” Inzhenern. Geol., No. 1, 80–87 (1989).
R. B. Krapivner, “Origin of Shallow-Seated Tectonic Structures in Regions of Dynamic Effect of Faults,” Geotektonika 26(3), 27–36 (1992).
R. B. Krapivner, “A New Conceptual Model of Injection Folding,” Geotektonika 26(4), 27–38 (1992).
R. B. Krapivner, “Indications of Neotectonic Activity at the Barents Sea Shelf,” Geotectonics 41(2), 149–162 (2007).
Yu. G. Leonov and M. D. Khutorskoi, “The Orla (Storöya) Trench as an Element of Recent Geodynamics in the Outer Zone of the Barents Sea Shelf,” in Structure and Evolution History of the Lithosphere, Ed. by Yu. G. Leonov (Paulsen Ed., Moscow, 2010) [in Russian].
K. O. Sobornov, “Wedge-Shaped Thrust Faults on the Northeastern Slope of the Caucasus,” Sov. Geol., No. 2, 31–39 (1990).
S. S. Stoyanov, Mechanisms of Fault Zone Formation (Nedra, Moscow, 1977) [in Russian].
S. I. Sherman, S. A. Bornyakov, and V. Yu. Buddo, Regions of Dynamic Effect of Faults (Nauka, Novosibirsk, 1983) [in Russian].
W. L. Barlett, M. Freedman, and J. M. Logan, “Experimental Folding and Faulting of Rocks under Confining Pressure,” Tectonophysics 79, 255–277 (1981).
M. A. Chinnery, “The Vertical Displacements Associated with Transcurrent Faulting,” J. Geophys. Res. 70(18), 4627–4632 (1965).
J. F. Gamond and A. Giraud, “Identification des zones de failesàlàide des Association des fractures de second Ordre,” Bull. Geol. Soc. France 24(4), 755–762 (1982).
J. F. Gamond and F. Odonne, “Critéres d’Identification des plus induits par un décrochement profond: Modélisation analogue et Donnés de Terrain,” Bull. Geol. Soc. France Bull. 26(1), 115–128 (1984).
T. P. Harding and J. D. Lowell, “Structural Stiles, Their Plate Tectonic Habitats and Hydrocarbon Traps in Petroleum Provinces,” Bull. Am. Ass. Petrol. Geol. 63(7), 1016–1058 (1979).
J. D. Lowell, “Spitsbergen Tertiary Orogenic Belt and Spitsbergen Fracture Zone,” Bull. Geol. Soc. Am. 83(10), 3091–3101 (1972).
A. R. Sandford, “Analytical and Experimental Study of Simple Geologic Structures,” Geol. Soc. Am. Bull. 70, 19–52 (1959).
A. W. Skempton, “Some Observations on Tectonic Shear Zones,” in Proc. Intern. Congr. Rock Mech. 1, 329–335 (1966).
A. G. Sylvester and R. R. Smith, “Tectonic Transpression and Basement Controlled Deformations in San Andreas Fault Zone, Salton Trough, California,” Am. Ass. Petrol. Geol. Bull. 60(12), 2081–2102 (1976).
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Original Russian Text © R.B. Krapivner, A.V. Skorobogat’ko, 2012, published in Geotektonika, 2012, Vol. 46, No. 5, pp. 44–62.
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Krapivner, R.B., Skorobogat’ko, A.V. Faults in Quaternary cover as a relfection of basement tectonics: Kolguev island, barents sea. Geotecton. 46, 352–368 (2012). https://doi.org/10.1134/S0016852112040048
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DOI: https://doi.org/10.1134/S0016852112040048