Detrital zircon U-Pb-Hf isotopes and whole-rock geochemistry of Ediacaran - Silurian clastic sediments of the Uzbek Tienshan: sources and tectonic implications

Konopelko, Dmitry; Safonova, Inna; Perfilova, Inna; Biske, Yury; Mirkamalov, Rustam; Диваев, Ф. К.; Котлер, П. Д.; Обут, О Т; Wang, Bo; Sun, Min; Soloshenko, N. G.

doi:10.1080/00206814.2021.2010134

Cited by 7 publications

(6 citation statements)

References 72 publications

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“…Specifically, there is an absence of zircon age at 200–500 Ma for North Pamir. The bedrock of the Kyzylkum Desert exhibits detrital zircon ages concentrate in the Precambrian (Figure 4e; Konopelko et al, 2021; X. Zhang et al, 2021), and no ages younger than 430 Ma were observed.…”

Section: Discussionmentioning

confidence: 99%

“… Single‐grain detrital zircons U‐Pb age spectra of the Kyzylkum Desert and potential provenances, shown as histograms (columns) and kernel density estimates (blue‐shaded curves). (Data sources: a–d: this study; e: Kyzylkum Desert Basement from Konopelko et al, 2021; X. Zhang et al, 2021; f: Fergana Basin from De Pelsmaeker et al, 2018; g: Southwest Tianshan from Chen et al, 2019; De Grave et al, 2011; Jepson et al, 2018; Jia et al, 2021; h: Tajik Basin from Chapman et al, 2019; Sun et al, 2020; Wang et al, 2019; i: North Pamir from Carrapa et al, 2014; Lukens et al, 2012). …”

Section: Discussionmentioning

confidence: 99%

“…The altitude of the desert is 53–300 m, with the lower side in the northwest and higher side toward southeast where the Tianshan Mountains and Pamir‐Altay Mountains are. Topography in the desert consists mainly of plains, also partly lowlands, hills, a series of enclosed basins and isolated mountains, including Bukantau Mountain, Tamdytau Mountain and Nurata Range (Konopelko et al., 2021). Sand ridges and barchan dunes are widespread, generally 3–30 m high (up to 75 m).…”

Section: Regional Overviewmentioning

confidence: 99%

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Provenance and Fluvial‐Aeolian Process of Kyzylkum Desert: Constrained by Detrital Zircon U–Pb Dating

Zhang,

Song,

Shukurov

et al. 2024

Geophysical Research Letters

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The Kyzylkum Desert, as a transition area of different dust source in Central Asia, provides and reserves a large amount of dust transported by different atmospheric circulation systems, affecting Uzbekistan and downwind East Asia. However, there remains very few investigations about sediment sources and control factors of the desert. We hereby first present a provenance study on the Kyzylkum Desert, utilizing detrital zircon U‐Pb ages of samples composed of desert sand, alluvial sediments from Amu Darya River and piedmont of Southwest Tianshan Mountains. The results reveal that the Southwest Tianshan Mountains contribute the majority of the Kyzylkum desert sand, and the river system, dominated by Syr Darya, controls the sediment provenance of the desert. Moreover, little contribution from the Kyzylkum and Nurata segments indicates that wind erosion on the bedrocks is weak. However, the aeolian process is still crucial but deposit and storage of dust are determined by local topography.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Regional Overviewmentioning

confidence: 99%

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Provenance and Fluvial‐Aeolian Process of Kyzylkum Desert: Constrained by Detrital Zircon U–Pb Dating

Zhang,

Song,

Shukurov

et al. 2024

Geophysical Research Letters

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“…All localities under consideration, and other orogens of the CAOB like those in western Junggar, Tienshan and northern Mongolia [ 23 , 31 , 42 , 80 , 82 ], are characterized by small coherent, i.e. not in mélange, outcrops of supra-subduction igneous rocks.…”

Section: Evidence For Disappeared and Survived Arcsmentioning

confidence: 99%

“…Recently, more and more papers have been published on the composition, U-Pb zircon ages and Hf-in-zircon isotopes of sandstones from different orogens of the CAOB (Fig. 2 ): Altai [ 21 , 24 , 25 ], Tienshan [ 23 , 26–28 ], Mongolia [ 21 , 29 , 30 ] and Kazakhstan [ 22 , 31 , 32 ]. However, a lot of supra-subduction and turbiditic formations remain understudied.…”

Section: Introductionmentioning

confidence: 99%

Survived and disappeared intra-oceanic arcs of the Paleo-Asian Ocean: evidence from Kazakhstan

Safonova

Perfilova

2022

National Science Review

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The paper reviews published and presents new data on U-Pb detrital zircon ages, petrographic, geochemical and isotope (Sm-Nd, Lu-Hf) compositions obtained from greywacke sandstones of Kazakhstan in order to reconstruct fossil intra-oceanic arcs once existed at Pacific-type convergent margins of the Paleo-Asian Ocean (PAO) in Paleozoic time. We focused on orogenic belts of central Kazakhstan (Itmurundy and Tekturmas) and eastern Kazakhstan (Zharma and Char) in the western Central Asian Orogenic belt (CAOB). These orogenic belts host accretionary complexes with greywacke sandstones of early Paleozoic (central Kazakhstan) and middle-late Paleozoic (eastern Kazakhstan) ages. First, we evaluate general perspectives for studying sandstones to reconstruct survived and disappeared magmatic arcs taking into account episodes of subduction erosion. Then we discuss the analytical data from sandstones to conclude about the ages and settings of formation of their igneous protoliths and define maximum deposition ages. Finally, we discuss the role of serpentinite mélange in tectonic reconstructions. We argue that sandstones hosted by accretionary complexes are typically greywackes deposited close to their igneous sources and buried rapidly. The provenances of the studied greywacke sandstones of central and eastern Kazakhstan were dominated by mafic to andesitic igneous protoliths derived from juvenile mantle sources. The igneous rocks in the provenances were emplaced in an intra-oceanic arc setting. The sandstones were deposited in fore-arc/trench basins or, to a lesser degree, in back-arc basins. The data from both sandstones and serpentinite mélange reconstruct middle-late Cambrian, Ordovician, late Devonian and Carboniferous arcs of the western PAO. The middle-late Cambrian arcs were fully destroyed by subduction erosion, whereas the Ordovician and Carboniferous arcs survived. The late Devonian arcs were also eroded, but partly. Both, the early and late Paleozoic active margins of the PAO were characterized by alternating periods of accretionary growth and subduction erosion.

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Early Paleozoic juvenile crustal growth in the Paleo-Asian Ocean: A contribution from the Zasur'ya accretionary complex of NW Altai

Safonova,

Krutikova,

Perfilova

et al. 2024

Earth-Science Reviews

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Detrital zircon U-Pb-Hf isotopes and whole-rock geochemistry of Ediacaran - Silurian clastic sediments of the Uzbek Tienshan: sources and tectonic implications

Cited by 7 publications

References 72 publications

Provenance and Fluvial‐Aeolian Process of Kyzylkum Desert: Constrained by Detrital Zircon U–Pb Dating

Provenance and Fluvial‐Aeolian Process of Kyzylkum Desert: Constrained by Detrital Zircon U–Pb Dating

Survived and disappeared intra-oceanic arcs of the Paleo-Asian Ocean: evidence from Kazakhstan

Early Paleozoic juvenile crustal growth in the Paleo-Asian Ocean: A contribution from the Zasur'ya accretionary complex of NW Altai

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