Tectonic and sedimentary evolution of basins in the northeast of Qinghai-Tibet Plateau and their implication for the northward growth of the Plateau

Zhu, L.; Wang, Chengshan; Zheng, Hongbo; Fang, Xiang-Min; Huang, Yi; Deng-zhong, Liu

doi:10.1016/j.palaeo.2006.06.019

Cited by 107 publications

(73 citation statements)

References 14 publications

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“…Additionally, the orientation of the depocenter was parallel with the strike of the faults (Fig. 8C) (Zhu et al, 2006). The main depocenter of the Qingxi Sag had migrated northeastwards from K1g 0 to K1g 2þ3 , with the maximum thickness decreased from 1662 m to 700 m. The entire structural framework has changed from deep in the south and shallow in the north during K1g 0 and K1g 1 to the trending of deep in the east and shallow in the west in K1g 2þ3 , indicating an anticlockwise rotation and migration.…”

Section: Strata Thickness Responses To the Tectonic Activitiesmentioning

confidence: 94%

“…1A), which is bordered by the Altyn Tagh tectonic belt to the northwest and the Beishan tectonic belt to the northeast. It is a petroliferous basin on the western end of the Hexi Corridor Basin group, and north of the Qinghai-Tibet Plateau, with an area of 22,000 km 2 Pan et al, 2006;Shi et al, 2001;Wang et al, 2005a;Wang et al, 2005b;Wang et al, 2008;Wen et al, 2007;Zhu et al, 2006). From west to east, the Jiuquan Basin is divided into three first-order tectonic units (Yang et al, 2002): the Jiuxi Depression in the west, the Jiayuguan Uplift in the center, and the Jiudong Depression in the east (Fig.…”

Section: Regional Geologic Background Of the Jiuquan Basinmentioning

confidence: 99%

“…They have undergone a similar evolution giving them a similar structural framework, although their internal architectures are different from one another. Zhu et al (2006) studied the Cenozoic sedimentary filling pattern in the Hoh Xil, Qaidam, and Jiuquan Basins, and concluded that these basins have a similar tectonic history: they began as strike-slip basins, and then evolved into foreland basins, and finally evolved into intermontane basins. The formation of foreland basins is the direct result of orogenic activity in the northeast of the Qinghai-Tibetan Plateau (Zhu et al, 2006).…”

Section: Regional Geologic Background Of the Jiuquan Basinmentioning

confidence: 99%

“…Zhu et al (2006) studied the Cenozoic sedimentary filling pattern in the Hoh Xil, Qaidam, and Jiuquan Basins, and concluded that these basins have a similar tectonic history: they began as strike-slip basins, and then evolved into foreland basins, and finally evolved into intermontane basins. The formation of foreland basins is the direct result of orogenic activity in the northeast of the Qinghai-Tibetan Plateau (Zhu et al, 2006). The northward movement of the northeast Qinghai-Tibet Plateau is one of the impact mechanisms of Cenozoic tectonic evolution, which complicates the structure of the basin.…”

Section: Regional Geologic Background Of the Jiuquan Basinmentioning

confidence: 99%

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Sedimentation of the Lower Cretaceous Xiagou Formation and its response to regional tectonics in the Qingxi Sag, Jiuquan Basin, NW China

Chen¹,

Wang²,

Wei³

et al. 2014

Cretaceous Research

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a b s t r a c tUnder the constraint of an isochronous sequence stratigraphic framework, sediment infill of the Xiagou Formation reflects the overall control of dynamic tectonic movements and episodic sedimentations in the Qingxi Sag. Structure reactivity during post-depositional processes could cause stratigraphic variations in longitudinal time and lateral space. This study documents sediment infill features and their response to the tectonic evolutions of the Qingxi Sag. The data sets include comparison of cores, well drilling, 3D seismic, inter-well correlation, wave impedance inversion profiles, original strata recovery data, sedimentary facies spatial evolution and their superimposition with paleogeomorphology.The Jiuquan Basin is a Mesozoic-Cenozoic superposition basin comprising an early rifting graben phase and a later compression phase. Since the Early Cretaceous, the basin has undergone four major tectonic episodes: 1) extension during the Early Cretaceous, 2) tectonic inversion caused by northwest-southeast contraction from the Late Cretaceous to the Paleocene, 3) weak extension from the Eocene to the Miocene and 4) contraction from the Miocene to the present. Therefore, the Jiuquan Basin is the product of taphrogenic, collisional and shearing movements.Seismic interpretations of sequence and maximum flooding surface divide the Xiagou Formation into three third order sequences: SQK1g 0 , SQK1g 1 and SQK1g 2þ3 . Five sedimentary facies associations are identified: the shoreland plain, fan delta dominated sedimentary systems, turbidite deposits, shallow lakes and half-deep lake systems. From K1g 0 to K1g 2þ3 , decreased sandstone percentages in three fan delta areas indicate a continuously transgressive process, which shows the transition from proximal to distal sites in most statistic wells and an obvious decrease of fan delta scales. The northeast-southwest faults control the lakeward distributions of delta fronts and turbidite fans.The correspondence of sedimentary infill and its response to tectonic movements have been demonstrated in the Qingxi Sag. The more active eastern part of the northeastern boundary fault has an important influence on the northeastward migration of depocenters in the Xiagou Formation. The topography developed continuously from K1g 0 to K1g 2þ3 , but the diminished subsidence indicates the dominant geological process varying from intense fault rifting in an early period to relatively gentle and overall subsidence in a later period during the Early Cretaceous.

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Section: Strata Thickness Responses To the Tectonic Activitiesmentioning

confidence: 94%

Section: Regional Geologic Background Of the Jiuquan Basinmentioning

confidence: 99%

Section: Regional Geologic Background Of the Jiuquan Basinmentioning

confidence: 99%

Section: Regional Geologic Background Of the Jiuquan Basinmentioning

confidence: 99%

See 2 more Smart Citations

Sedimentation of the Lower Cretaceous Xiagou Formation and its response to regional tectonics in the Qingxi Sag, Jiuquan Basin, NW China

Chen¹,

Wang²,

Wei³

et al. 2014

Cretaceous Research

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“…2.6 Ma), the fi rst appearance of gypsiferous shale within the strata provides unequivocal evidence for the evaporite-rich Quaternary Qigequan strata at this location, and it is the basis for our formation boundary. This change from lacustrine to evaporite strata is widespread throughout the Qaidam Basin (Song and Wang, 1993;Rieser et al, 2005;Zhu et al, 2006;Fang et al, 2007;Wang et al, 2012) and implies that the lithofacies change was not a local event but rather a basinwide event due to an overall increase in aridity between 3.1 Ma and 2.6 Ma in the region.…”

Section: Stratigraphic Nomenclature and Geochronologymentioning

confidence: 99%

Climatic and tectonic controls on sedimentation and erosion during the Pliocene-Quaternary in the Qaidam Basin (China)

Heermance

Pullen

Kapp

et al. 2013

Geological Society of America Bulletin

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Paleomagnetism of Eocene and Miocene sediments from the Qaidam basin: Implication for no integral rotation since the Eocene and a rigid Qaidam block

Guan

et al. 2014

Geochem Geophys Geosyst

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The Qaidam basin is the largest topographic depression inside the Tibetan Plateau and it is a key factor to understanding the Cenozoic evolution of the northern Tibetan Plateau. Paleomagnetic data was obtained from the middle to late Eocene Xiaganchaigou Formation and the early to middle Miocene Xiayoushashan Formation from seven localities. The paleomagnetic results indicate that the Qaidam basin has not undergone obvious basin-scale vertical axis rotation with respect to the Eurasia Plate since the Eocene. Local clockwise rotation took place only at a few special locations along the northern margin of the Qaidam basin. The uniform paleomagnetic results at different localities support that the Qaidam basin is a relatively rigid block. Regional paleomagnetic and geodetic observations also suggest that crust south of the Kunlun fault moves eastward faster than crust north of the Kunlun fault.

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Tectonic and sedimentary evolution of basins in the northeast of Qinghai-Tibet Plateau and their implication for the northward growth of the Plateau

Cited by 107 publications

References 14 publications

Sedimentation of the Lower Cretaceous Xiagou Formation and its response to regional tectonics in the Qingxi Sag, Jiuquan Basin, NW China

Sedimentation of the Lower Cretaceous Xiagou Formation and its response to regional tectonics in the Qingxi Sag, Jiuquan Basin, NW China

Climatic and tectonic controls on sedimentation and erosion during the Pliocene-Quaternary in the Qaidam Basin (China)

Paleomagnetism of Eocene and Miocene sediments from the Qaidam basin: Implication for no integral rotation since the Eocene and a rigid Qaidam block

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