Provenance of late Paleozoic sedimentary rocks in eastern Kazakhstan: Implications for the collision of the Siberian margin with the Kazakhstan collage

Hu, Wanwan; Li, Pengfei; Sun, Min; Safonova, Inna; Jiang, Yingde; Yuan, Chao; Котлер, П. Д.

doi:10.1016/j.jseaes.2021.104978

Cited by 9 publications

(11 citation statements)

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“…is dominated by basalt, andesibasalt, andesitic lava and tuff with subordinate siliceous shales, siltstone and sandstones. Greywacke sandstones occur in all units and formations [ 22 , 56 ].…”

Section: Geological Overview Of Eastern Kazakhstanmentioning

confidence: 99%

“…We obtained a ∼760 U-Pb detrital zircon age of 100%–95% concordance from greywacke sandstones of four orogenic belts [ 22 , 31 , 32 , 56 ] ( Supplementary Table S1 ). The color, space and size of zircons are similar.…”

Section: U-pb Ages Of Detrital Zircons From Sandstonesmentioning

confidence: 99%

“… Distributions of U-Pb ages of detrital zircons from greywacke sandstones of the (A and B) Itmurundy, (C and D) Tekturmas, (E and F) Zharma and (G and H) Char belts (originally published in Refs [ 22 , 31 , 32 , 56 ]). …”

Section: U-pb Ages Of Detrital Zircons From Sandstonesmentioning

confidence: 99%

“…yielded unimodal U-Pb age distributions peaked at 340 and 327 Ma, respectively (Fig. 5E and F ), suggesting Visean and Serpukhovian intra-oceanic arcs as their respective sources [ 22 , 56 ]. The youngest clusters at 319 ± 3 and 312 ± 3 Ma indicate the Bashkirian and Moscovian maximum deposition ages of the Kokon’ and Koyandin formations, respectively.…”

Section: U-pb Ages Of Detrital Zircons From Sandstonesmentioning

confidence: 99%

“…About 250 zircons from the sandstones of the Dalankarin and Toubin formations yielded peaks of U-Pb detrital zircon ages at 340 and 325 Ma, respectively [ 22 , 56 ] (Fig. 5G and H ).…”

Section: U-pb Ages Of Detrital Zircons From Sandstonesmentioning

confidence: 99%

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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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Section: Geological Overview Of Eastern Kazakhstanmentioning

confidence: 99%

Section: U-pb Ages Of Detrital Zircons From Sandstonesmentioning

confidence: 99%

Section: U-pb Ages Of Detrital Zircons From Sandstonesmentioning

confidence: 99%

Section: U-pb Ages Of Detrital Zircons From Sandstonesmentioning

confidence: 99%

“…About 250 zircons from the sandstones of the Dalankarin and Toubin formations yielded peaks of U-Pb detrital zircon ages at 340 and 325 Ma, respectively [ 22 , 56 ] (Fig. 5G and H ).…”

Section: U-pb Ages Of Detrital Zircons From Sandstonesmentioning

confidence: 99%

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