Late Paleozoic to Jurassic tectonic evolution of the Bogda area (northwest China): Evidence from detrital zircon U–Pb geochronology

Tang, Wenhao; Zhang, Zhicheng; Li, Jianfeng; Li, Ké; Chen, Yan; Guo, Zhaojie

doi:10.1016/j.tecto.2014.04.005

Cited by 78 publications

(72 citation statements)

References 43 publications

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“…This, associated with the occurrence of Lower Triassic conglomerates in the Early Triassic Ehuobulake Formation of the Kuqa sub-basin (the names of the various sedimentary formations can be found for example in Hendrix et al, 1992, Shao et al, 1999Jin et al, 2008 andQiu et al, 2008), is consistent with the compression-related exhumation phase recognized by the low temperature thermochronology data within the range (Dumitru et al, 2001;Li et al, 2004;. Detrital zircon U/Pb dating in the Middle to Late Triassic along the southern edge of the Junggar Basin (Xiaoquangou Group) indicate a strong widening of the drainage system towards the Central Tian Shan block associated to the progressive erosion of the Permian -Early Triassic topography (Yang et al, 2012). From Middle Triassic, basement highs also started to develop in the Turfan Basin, probably in a compressional setting (Shao et al, 1999).…”

Section: Modalities Discussedsupporting

confidence: 70%

“…Similar structures, like the Dalabute Fault to the west or the Kelameili Fault along the Altay, were also active around the Junggar Basin itself submitted to significant extension (e.g. Allen et al, 1991Allen et al, , 1995Allen and Vincent, 1997;Qiu et al, 2005Qiu et al, , 2008Yang et al, 2012). Those large strike-slip faults have been active from Early Permian to Early Triassic (ca.…”

Section: The Carboniferous -Permian Evolutionmentioning

confidence: 95%

“…3b). Along the southern Junggar margin, detrital zircon U/Pb analysis indicate a major source area in the North Tian Shan block associated to a widening of the drainage pattern towards the Central Tian Shan block (Yang et al, 2012), again suggesting the presence of significant reliefs. Pull-apart basins formed along those strike-slip fault zones, sometimes associated to volcanism as along the Dalabute Fault (Allen and Vincent, 1997) (Fig.…”

Section: The Carboniferous -Permian Evolutionmentioning

confidence: 95%

“…From Middle Triassic, basement highs also started to develop in the Turfan Basin, probably in a compressional setting (Shao et al, 1999). During the same period, tectonic subsidence ceased in the Junggar Basin, which became a slowly subsiding depression (Yang et al, 2012).…”

Section: Modalities Discussedmentioning

confidence: 99%

“…The Permian magmas were then emplaced in a post-collisional setting and several authors suggested that slab break-off and lithospheric delamination may explain their mantle signature (Han et al, 1999(Han et al, , 2009Chen and Jahn, 2004;Zhao et al, 2008;Shu et al, 2010). By Late Carboniferous -Early Permian, the Junggar Basin, disconnected from the Palaeo-Tethys ocean (Sha et al, 2011), initiated as a half-graben structure in a post-collisional extensional setting (Qiu et al, 2005(Qiu et al, , 2008Yang et al, 2012).…”

Section: The Carboniferous -Permian Evolutionmentioning

confidence: 99%

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Reconstructing the Late Palaeozoic – Mesozoic topographic evolution of the Chinese Tian Shan: available data and remaining uncertainties

et al. 2013

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Abstract. The topographic evolution of continents and especially the growth and dismembering of mountain ranges plays a major role in the tectonic evolution of orogenic systems, as well as in regional or global climate changes. A large number of studies have concentrated on the description, quantification and dating of relief building in active mountain ranges. However, deciphering the topographic evolution of a continental area submitted to recurrent tectonic deformation over several hundred millions of years remains a challenge. Here we present a synthesis of the tectonic, geochronological and sedimentological data available on the intracontinental Tian Shan Range to describe its general topographic evolution from Late Palaeozoic to Early Tertiary. We show that this evolution has occurred in two very distinct geodynamic settings, initiating during the Carboniferous in an ocean subduction -continent collision tectonic context before becoming, from Early Permian, purely intra-continental. We show that during most of the Mesozoic, the topography is mostly characterized by a progressive general decrease of the relief. Nonetheless localized, recurrent deformation induced the formation of small-scale reliefs during that period. These deformations were driven by far field effects of possibly several geodynamic processes in a way that still remains to be fully understood.

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Section: Modalities Discussedsupporting

confidence: 70%

Section: The Carboniferous -Permian Evolutionmentioning

confidence: 95%

Section: The Carboniferous -Permian Evolutionmentioning

confidence: 95%

Section: Modalities Discussedmentioning

confidence: 99%

Section: The Carboniferous -Permian Evolutionmentioning

confidence: 99%

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Reconstructing the Late Palaeozoic – Mesozoic topographic evolution of the Chinese Tian Shan: available data and remaining uncertainties

et al. 2013

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Whole‐rock geochemistry and zircon Hf isotope of Late Carboniferous–Triassic sediments in the Bogda region, NW China: Clues for provenance and tectonic setting

Wang

et al. 2018

Geological Journal

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Detailed petrological, whole‐rock geochemical, and zircon Hf isotopic researches were conducted on the Late Carboniferous–Triassic sedimentary rocks in the Bogda region to evaluate the effects of weathering, sorting, and alteration, as well as to understand their provenance and tectonic setting. These rocks show variable major element compositions, but most are generally similar to post‐Archean Australian shales. The relatively narrow range of TiO2–Zr variation and good correlation between Th/Sc and Zr/Sc signify no obvious sorting and recycling of the sedimentary rocks. The relatively high index of compositional variability (0.8–3.1) and low chemical index of alteration values (44.4–76.4) of the sedimentary rocks indicate that they are immature and probably undergo weak to moderate chemical weathering. In the chondrite‐normalized diagrams, almost all the samples are distinguished by moderately enriched light rare earth element and flat heavy rare earth element patterns with negative Eu anomalies (Eu/Eu* = 0.5–0.8). In conjunction with their Th/Sc, Zr/Sc, La/Th, Zr/Al2O3, TiO2/Zr, Co/Th, and La/Sc ratios, we infer that the major sources of these sedimentary rocks were the intermediate–acidic igneous rocks from the North Tianshan and Yili–Central Tianshan. Combining the orientation of the Bogda region in the Palaeozoic that was roughly perpendicular to the Tianshan and/or East Junggar orogens with the sedimentologic, petrologic, and tectonic researches, we suggest that the Bogda region was a rift basin that occurs at high angles to the orogenic belt. On the other hand, the zircons from these sediments have minor Precambrian grains (<0.2%), positive εHf(t) values (mostly +7.1–+15.0) and young 2‐stage Hf model ages (major peak <1,000 Ma), suggesting that a juvenile continental crust exists as the basement of the Junggar Basin.

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The diagenetic and tectonic significance of hydrocarbon accumulation in the southern Junggar Basin, NW China

Tian

Zhang

et al. 2017

Geological Journal

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The Jurassic petroleum system plays an increasingly important role in petroleum explorations in the southern Junggar Basin. To assess the hydrocarbon distribution and the accumulation history of the Jurassic reservoirs in this area, we carried out reservoir petrographic, fluorescence spectroscopic, and fluid inclusion petrographic analyses on the core and cutting samples from the QQ‐2 well in the Qigu Anticline. The oil accumulation has the partiality for high‐quality sandstone reservoirs that have the high porosity and permeability with values of 14–18% and (1–450) × 10−2 μm2, respectively, in the Middle Jurassic Toutunhe Formation (J2t) reservoirs. The pores are big with average diameters of 60–100 μm, and the pore throats are wide with values of 3.45–6.92 μm in the oil reservoirs. The intergranular pores survive thanks to the poor compaction and the poor cementation, and the dissolved and mould pores develop attributed to the strong dissolution in the oil reservoirs. Two episodes of oil charging and one episode of gas invasion were identified in the Middle Jurassic reservoirs in the southern Junggar Basin. The low‐maturity paleo‐oil charged the sandstone reservoirs at about 35 Ma when the paleo‐traps took shape during the Cretaceous–Eocene. A large number of faults and anticlinal traps was developed in the southern Junggar Basin at about 7 Ma, caused by the reactivation of the Tianshan Mountains in the late Cenozoic. Simultaneously, the leakage of the paleo‐oil, the accumulation of late oil, and the gas invasion all took place. Fault activities led to the leakage of paleo‐oil and helped the oil and gas accumulate in the Middle Jurassic reservoirs in the anticlinal trap shaping at about 7–8 Ma in the southern Junggar Basin.

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Late Paleozoic to Jurassic tectonic evolution of the Bogda area (northwest China): Evidence from detrital zircon U–Pb geochronology

Cited by 78 publications

References 43 publications

Reconstructing the Late Palaeozoic – Mesozoic topographic evolution of the Chinese Tian Shan: available data and remaining uncertainties

Reconstructing the Late Palaeozoic – Mesozoic topographic evolution of the Chinese Tian Shan: available data and remaining uncertainties

Whole‐rock geochemistry and zircon Hf isotope of Late Carboniferous–Triassic sediments in the Bogda region, NW China: Clues for provenance and tectonic setting

The diagenetic and tectonic significance of hydrocarbon accumulation in the southern Junggar Basin, NW China

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