Research output: Contribution to journal › Article › peer-review
Provenance of the Neoproterozoic and Upper Paleozoic Siliciclastic Complexes of the Eastern Taimyr : Petrographic, Geochemical, and Geochronological Data. / Priyatkina, N. S.; Khudoley, A. K.; Kuptsova, A. V.
In: Stratigraphy and Geological Correlation, Vol. 28, No. 6, 27.11.2020, p. 638-652.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Provenance of the Neoproterozoic and Upper Paleozoic Siliciclastic Complexes of the Eastern Taimyr
T2 - Petrographic, Geochemical, and Geochronological Data
AU - Priyatkina, N. S.
AU - Khudoley, A. K.
AU - Kuptsova, A. V.
N1 - Funding Information: Isotopic studies and data interpretation were supported by the Australian Research Council Discovery Project 120104004 (WJ Collins) and the Russian Foundation for Basic Research (project no. 19-05-00521). Petrographic and geochemical studies and data interpretation were supported by the Russian Science Foundation (project no. 17-17-01171). Publisher Copyright: © 2020, Pleiades Publishing, Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/11/27
Y1 - 2020/11/27
N2 - Abstract—: The results of petrographic, geochemical, and isotopic studies of the Neoproterozoic and Upper Paleozoic sandstones of the Eastern Taimyr complement the available data on their genesis and confirm their molassic origin. The sandstones and mudstones of the Neoproterozoic Stanovaya and Posadochnaya formations formed mostly from the erosion products of the magmatic and metamorphic complexes with ages of ~970–800 Ma and from older siliciclastic rocks. The Upper Paleozoic sandstones of the Byrranga, Sokolinaya, and Turuza formations are characterized by a somewhat lower degree of maturity. Most of them formed from erosion products of magmatic and metamorphic complexes with ages of ~500 and ~300 Ma, although sediments sourced from an older provenance were also encountered. The ages of the youngest detrital zircon grains from the Upper Paleozoic sandstones are close to the depositional ages in some cases and differ by more than 100 m.y. in other cases. This suggests that one should be cautious about using the maximum depositional ages for establishing the tectonic setting of sedimentary basin formation.
AB - Abstract—: The results of petrographic, geochemical, and isotopic studies of the Neoproterozoic and Upper Paleozoic sandstones of the Eastern Taimyr complement the available data on their genesis and confirm their molassic origin. The sandstones and mudstones of the Neoproterozoic Stanovaya and Posadochnaya formations formed mostly from the erosion products of the magmatic and metamorphic complexes with ages of ~970–800 Ma and from older siliciclastic rocks. The Upper Paleozoic sandstones of the Byrranga, Sokolinaya, and Turuza formations are characterized by a somewhat lower degree of maturity. Most of them formed from erosion products of magmatic and metamorphic complexes with ages of ~500 and ~300 Ma, although sediments sourced from an older provenance were also encountered. The ages of the youngest detrital zircon grains from the Upper Paleozoic sandstones are close to the depositional ages in some cases and differ by more than 100 m.y. in other cases. This suggests that one should be cautious about using the maximum depositional ages for establishing the tectonic setting of sedimentary basin formation.
KW - Arctic
KW - detrital zircon
KW - molasse
KW - Neoproterozoic
KW - Paleozoic
KW - sandstone
KW - Taimyr
UR - http://www.scopus.com/inward/record.url?scp=85096866068&partnerID=8YFLogxK
U2 - 10.1134/S0869593820060088
DO - 10.1134/S0869593820060088
M3 - Article
AN - SCOPUS:85096866068
VL - 28
SP - 638
EP - 652
JO - Stratigraphy and Geological Correlation
JF - Stratigraphy and Geological Correlation
SN - 0869-5938
IS - 6
ER -
ID: 72110832