Keywords
Pliocene
basaltic plateaus
South Vietnam
Section
Abstract
Basalts from the Vanhoa Plateau (South Vietnam) of the Pliocene (1.8-5.3 m.y.) age are located in the zone of dynamic influence of the East-Vietnam Border fault of the meridional strike. Within the lower levels of this plateau section the authors have revealed abundant steeply dipping rectilinear ruptures, on which displacers’ surfaces the subhorisontal (about 10o) striation and sliding grooves are found ubiquitously. The structural paragenesis including the NNE right-lateral displacements and ENE left-lateral displacements shows the NE (40o) direction of the compression and, correspondingly, the dominant of the right-lateral displacements along the East-Vietnam Border fault in the Late Cenozoic time. This compression is probably local and manifested itself in the area of the co-fault extension at the non-co-axis dynamic interaction during the right displacements against the background of the submeridional regional compression.References
Касаткин С.А., Голозубов В.В., Фун Ван Фать, Ле Дык Ань. Проявление кайнозойских сдвиговых дислокаций системы разломов Красной Реки в палеозойских карбонатных толщах острова Катба (Северный Вьетнам) // Тихоокеанская геология, 2014. Т. 33. № 3. С. 14-28.
Шерман С.И., Борняков С.А., Семинский Ж.В и др. Разломообразование в литосфере: Зоны сдвига. Новосибирск: Наука. Сиб. отд-ние, 1991. 262 с.
Allen C.R., Gillespie A.R., Yuan H. et al. Red River and associated faults, Yunnan Province, China: Quaternary geology, slip rates, and seismic hazard // Geological Society of America bulletin. 1984. V. 95. № 6. P. 686-700.
Fyhn M.B.W., Boldreel L.O., Nielsen L.H. Geological development of the Central and South Vietnamese margin: Implications for the establishment of the South China Sea, Indochinese escape tectonics and Cenozoic volcanism // Tectonophysics. 2009. V. 478. Is. 3-4. P. 184-214.
Hoang N., Flower M.F. Petrogenesis of Cenozoic Basalts from Vietnam: Implication for Origins of a Diffuse Igneous Province // Journal of Petrology. 1998. V. 39. № 3. P. 369-395.
Geological and Mineral Resources map of Viet Nam on 1:200 000: Tuy Hoa (D-49-XXVI). Department of Geology and Minerals of Viet Nam, Ha Noi, 1997.
Gero W. M., Matthias B., Detlef A., Christoph R., Ewald R. Crustal motion in E- and SE-Asia from GPS measurements // Earth Planets Space. 2000. V. 52. № 10. P. 713-720.
Leloup Ph.H., Lacassin R., Tapponnier P., Schärer U. et al. The Ailao Shan-Red River shear zone (Yunnan, China), Tertiary transform boundary of Indochina. // Tectonophysics. 1995. V. 251. № 1. P. 3-84. п
Nielsen L.H., Petersen H.I., Thai N.D. et al. A Middle–Upper Miocene fluvial–lacustrine rift sequence in the Song Ba Rift, Vietnam: an analogue to oil-prone, small-scale continental rift basins // Petroleum Geoscience. 2007. V. 13. № 2. P. 145-168.
Phach, P.V. Tectonic Structure of the Red River Fault Zone // Journal of Geology. Series B. 2001, №. 17-18. P. 54-64.
Phach, P.V. Que, B.C. Late Cenozoic tectonic activities in North Vietnam // Journal of Geology. Series B. 1999. №. 13-14. P. 33-41.
Replumaz A. Lacassin, R., Tapponnier P., Leloup P. H. Large river offsets and Plio-Quaternary dextral slip rate on the Red River fault (Yunnan, China) // JGR. 2001. V. 106. B1. P. 819-836.
Woodcock N.H., Fisher M. Strike-slip duplexes // Journal of Struct. Geol. 1986. V. 8. №7. P. 725-735.
Zuchiewicz W., Cuong, N.Q., Yem, N.T. Tectonic geomorphology of Northern Vietnam: a case study of the Red River Fault Zone // Yem, N.T. Tokarski A.A., Hoa, T.T., Zuchiewicz W.A., Anh, T.T., Świerczewska A., Cuong, N.Q. (Eds). The Cenozoic geodynamics of northern Vietnam: special issue dedicated to the 10th anniversary of scientific research cooperation on geology between Vietnam and Poland (1999-2009). Hanoi: Publishing House of Natural Science and Technology, 2009. P. 11-49.
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