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  • 11. Symposium "Tektonik, Struktur- und Kristallingeologie" , 2006-03
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Evolution of the Tamtsag Basin / NE-Mongolia — part II: structure and hydrocarbon potential

Davaa, Buyan
Geerdts, Peter
Vogler, Marc
Henk, Andreas
2006
Universitätsverlag Göttingen
Article in Anthology
Verlagsversion
Deutsch
11. Symposium "Tektonik, Struktur- und Kristallingeologie"
DOI: https://doi.org/10.23689/fidgeo-1900
Davaa, Buyan; Geerdts, Peter; Vogler, Marc; Henk, Andreas, 2006: Evolution of the Tamtsag Basin / NE-Mongolia — part II: structure and hydrocarbon potential. In: Philipp, S.; Leiss, B; Vollbrecht, A.; Tanner, D.; Gudmundsson, A. (eds.): 11. Symposium "Tektonik, Struktur- und Kristallingeologie"; 2006, Univ.-Verl. Göttingen, S. 34 - 36., , DOI: 10.23689/fidgeo-1900.
 
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  • Abstract
The Tamtsag basin in NE Mongolia is part of a widespread basin system which formed during Late Jurassic and Cretaceous times (Graham et al. 2001, Qing-Ren et al. 2003). It is filled with continental sediments and volcanics which can reach up to 4km in thickness. Rifting and subsequent basin inversion led to a complex basin geometry characterized by several horst and graben structures. The geodynamic causes for regional basin formation are discussed controversially and several hypothesis ranging from orogenic collapse via subduction rollback to collision-induced rifting have been put forward. Scientific research on the Mesozoic basins in Mongolia has so far concentrated on the East Gobi basin to the southwest (Graham et al. 2001, Prost 2004, Johnson et al. 2004) and some work has also been published on the Hailar Basin (Qing-Ren et al. 2003), the northeastward continuation of the Tamtsag Basin into China. Fundamental data on the fill and tectonics of the Tamtsag Basin in between is still missing. This is partly due to poor exposure as most of the basin fill is covered by Cenozoic sediments and only locally, near the borders faults, rocks are accessible for surface investigations. However, recent discoveries of oil in the Tamtsag and Hailar Basins have resulted in intense exploration activity and a strong interest in the area. This contribution describes the results of a field campaign in Fall 2005 focusing on the structure and hydrocarbon potential while a companion paper (Geerdts et al. this volume) deals with the fill of the Tamtsag Basin.
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  • 11. Symposium "Tektonik, Struktur- und Kristallingeologie" , 2006-03 [111]
Subjects:
Mongolei <Nordost>
Riftsystem
Mesozoikum
Sedimentationsbecken
Tektonik
Erdölvorkommen
Sedimentationsbecken als Erdkrustentypen {Geologie}
Rifts {Geologie}
Mongolei (Mongolische Volksrepublik) {Geologie}
Vorratsberechnungen {Kohlenwasserstofflagerstätten}
Zentralasien {Fossile Energieträger}
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