What generated the Late Permian to Triassic unconformities in the southern Junggar Basin and western Turpan Basin; tectonic uplift, or increasing aridity?

Liu, D.; Zhang, Chen; Yao, Erdong; Song, Yan; Jiang, Zhenxue; Luo, Qun

doi:10.1016/j.palaeo.2016.11.045

Cited by 34 publications

(27 citation statements)

References 85 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our new detrital zircon U–Pb analysis enables comparisons and correlations of subsurface and surface Permian detrital zircon signatures (Figure ). Here, we discuss the variability in detrital zircon provenance signatures in the Turpan–Hami Basin and its surrounding regions by integrating 300 U–Pb ages of three subsurface Permian samples and previously reported 1,496 U–Pb ages of 17 samples, including 15 surface samples collected from four exposed intervals (D. Liu et al, , ; J. Wang, Wu, et al, ; X. Zhang et al, ) and two subsurface Permian samples collected from an exploratory well near Urumqi (Figure and Table ; J. Wang, Wu, et al, ).…”

Section: Discussionmentioning

confidence: 96%

“…D. Liu et al (, ) also reported three Permian samples JM‐01 (Lucaogou Formation), JM‐02 (Quanzijie Formation), and JM‐03 (Wutonggou Formation) collected from the Xiaolongkou Section at the northern piedmont of the Bogda (Figure c). The detrital zircon age spectra of these samples show a similar bimodal distribution pattern, with Carboniferous and Devonian peak ages (Figure ).…”

Section: Discussionmentioning

confidence: 96%

“…Recently, some detrital zircon U–Pb geochronological studies have been conducted to unravel sedimentary provenance and tectonic evolution for Permian strata from surface outcrops of key stratigraphic localities around the surrounding regions of the Turpan–Hami Basin (D. Liu et al, , ; J. Wang, Wu, et al, ; X. Zhang et al, ). However, the absence of Permian strata exposures within the Turpan–Hami Basin hampers efforts to evaluate the links between these published geochronological data at a regional scale.…”

Section: Discussionmentioning

confidence: 99%

“…Data are synthesized from this study and previous works. Data source: Shaquanzi Section in the Jueluotag from X. Zhang et al (); Tarlong Section at the southern piedmont of the Bogda from D. Liu et al (); Xiaolongkou Section at the northern piedmont of the Bogda from D. Liu et al (, ); and Haxionggou Section, Niufengou Section, and adjacent borehole samples at the north‐western piedmont of the Bogda from J. Wang, Wu et al (). Section locations for previous studies are shown in Figure .…”

Section: Discussionmentioning

confidence: 99%

“…Additionally, this area is a key laboratory for the study of a critical transition between the Palaeozoic continental amalgamation and the Meso‐Cenozoic intracontinental evolution during Permian (Allen, Şengör, & Natal'In, ; Carroll, Graham, Hendrix, Ying, & Zhou, ; Chen, Shu, & Santosh, ; Hendrix et al, ; Jolivet et al, ; Şengör, Natal'in, & Burtman, ; Shu et al, ; Windley, Allen, Zhang, Zhao, & Wang, ; Xiao et al, ; S. Zhao et al, ). A number of studies have been carried out in this region and proposed different tectonic models, including (a) contractional tectonic regime and foreland basins throughout the Permian (He et al, ; H. Liu, Liang, Cai, Xia, & Liu, ); (b) post‐collision extensional tectonic regime and rift basins during the Permian (Fang et al, ; D. Liu et al, ; Obrist‐Farner & Yang, ; J. Wang, Wu, et al, ); (c) strike‐slip tectonic regime and transtensional basins (Allen et al, ); and (d) Early–Middle Permian post‐collision extensional tectonic regime and rift basins, while tectonic contraction and inversion occurred during the Late Permian (J. Wang, Cao, et al, ; Wartes et al, ). It is worth pointing out that most of these conclusions were made based on structural deformation (Wartes et al, ), sedimentology (Allen et al, ; Fang et al, ; Obrist‐Farner & Yang, ; J. Wang, Cao, et al, ; Wartes et al, ), and detrital zircon U–Pb geochronology (D. Liu et al, ; J. Wang, Wu, et al, ) of outcrop sections within the Eastern Tianshan area, with very limited subsurface and intrabasinal data.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Detrital zircon U–Pb geochronology of the Permian strata in the Turpan–Hami Basin in North Xinjiang, NW China: Depositional age, provenance, and tectonic implications

et al. 2018

View full text Add to dashboard Cite

The Permian sedimentary rocks in the Turpan–Hami Basin are key records of the tectonic evolution in the Eastern Tianshan area, although their depositional ages and provenances remain relatively less studied. Here, we conducted detrital zircon U–Pb geochronology on subsurface samples collected from Well LN1 in the Turpan–Hami Basin to understand the depositional ages and provenances of the Permian rocks. In this study, detrital zircon U–Pb ages from the Late Carboniferous Sumuke Formation yielded a notable Permian age population with the youngest single‐grain age at 282.6 Ma. Compiling this result with a published dataset from the surrounding regions of the Turpan–Hami Basin, it shows that the Sumuke Formation was actually deposited in the Early Permian and the Late Carboniferous palynological assemblages within it are of recycled origin. The detrital zircon age spectra of the three Early–Middle Permian samples from Well LN1 define similar unimodal distribution, with prominent late Carboniferous age peaks and scarce Precambrian ages, further indicating that the zircon grains in these three samples should be ultimately sourced from the Jueluotag, the southern branch of the North Tianshan. Regionally, the Bogda, the northern branch of the North Tianshan, as catchment areas recorded interaction between southern and northern sources, and thus, there was a single greater Junggar–Turpan Basin during the Early–Middle Permian. During the latest Middle Permian to Late Permian, provenance shifts occurred at the Jueluotag and the southern piedmont of the Bogda, reflecting the uplift of the Central Tianshan and the Bogda and the isolation of the Junggar Basin and Turpan–Hami Basin. Integrating regional geological studies and provenance evolution trends, we suggest that the Turpan–Hami Basin and its surrounding regions were in a rift setting controlled by post‐collision extension during Early–Middle Permian. By contrast, tectonic contraction and inversion occurred during the latest Middle Permian to Late Permian as a part of the intraplate orogenic process in the Tianshan, which responded to the convergence between the Songpan–Ganzi terrane and palaeo‐Eurasian Plate.

show abstract

Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Detrital zircon U–Pb geochronology of the Permian strata in the Turpan–Hami Basin in North Xinjiang, NW China: Depositional age, provenance, and tectonic implications

et al. 2018

View full text Add to dashboard Cite

show abstract

Increased aridity across thePermian–Triassictransition in the mid‐latitudeNEPangea

Cui

Cao

2021

Geological Journal

View full text Add to dashboard Cite

The Dalongkou section in Xinjiang, Northwest China has preserved a continuous terrestrial Late Permian-Early Triassic sequence with well-studied information of biota evolution and isotopic excursion. In order to know the corresponding palaeoclimatic and palaeoenvironmental evolution in this critical transition, chemical weathering indexes (chemical index of alteration [CIA], plagioclase index of alteration [PIA], and chemical index of weathering (CIW)) are analysed in high resolution across the Permian-Triassic Boundary. Results show that the declining trend of the CIA, PIA, and CIW was related to the continuous decrease of the chemical weathering in the latest Permian. The climate in the mid-latitude NE Pangea was becoming increasingly arid in a generally greenhouse warm climate, causing widespread wildfire and turnover of the fauna and biota, coupled with the environmental deterioration expressed by the anomalies of carbon and mercury. Climatic conditions oscillated in the Early Triassic with possible intermittent rainfall and was likely affected by the strengthening of the megamonsoon. In the latest Permian-earliest Triassic, whether chemical weathering strengthened or weakened, as well as whether the climate was increasingly arid or humid, varied in the different places. The possible reasons inducing this need to be further explored.

show abstract

Fossil woods from the Olenekian (late Early Triassic) Shaofanggou Formation in the Junggar Basin, Northern Xinjiang, North‐west China

Shi

Lang

et al. 2021

Geological Journal

View full text Add to dashboard Cite

A large number of fossil woods were preserved in the Permian-Triassic sequences in the Junggar Basin of Xinjiang Uygur Autonomous Region. These wood fossils provide a lot of palaeoenvironmental information of the Junggar Basin during the Permian-Triassic transition. Here, we describe the fossil woods collected from the base of the Olenekian Shaofanggou Formation in Dalongkou Anticline. Anatomically, these wood remains closely resemble Junggaropitys dalongkouensis, but they lack growth rings and rays are higher. Thus, we suggest identifying them as J. cf. dalongkouensis. The growth pattern shows that J. cf. dalongkouensis is evergreen and developed under warm and humid environments. However, the data of geochemistry, palaeosol and certain sedimentary features reveal a dry climate. Thus, we speculate that the Olenekian Junggar Basin contained gallery forests in the arid environment.

show abstract

What generated the Late Permian to Triassic unconformities in the southern Junggar Basin and western Turpan Basin; tectonic uplift, or increasing aridity?

Cited by 34 publications

References 85 publications

Detrital zircon U–Pb geochronology of the Permian strata in the Turpan–Hami Basin in North Xinjiang, NW China: Depositional age, provenance, and tectonic implications

Detrital zircon U–Pb geochronology of the Permian strata in the Turpan–Hami Basin in North Xinjiang, NW China: Depositional age, provenance, and tectonic implications

Increased aridity across thePermian–Triassictransition in the mid‐latitudeNEPangea

Fossil woods from the Olenekian (late Early Triassic) Shaofanggou Formation in the Junggar Basin, Northern Xinjiang, North‐west China

Contact Info

Product

Resources

About