Research output: Contribution to journal › Article › peer-review
U–Pb age and Hf isotope geochemistry of detrital zircons from cambrian sandstones of the severnaya Zemlya archipelago and Northern Taimyr (Russian high arctic). / Ershova, Victoria; Prokopiev, Andrei; Khudoley, Andrey; Andersen, Tom; Kullerud, Kåre; Kolchanov, Daniil.
In: Minerals, Vol. 10, No. 1, 36, 01.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - U–Pb age and Hf isotope geochemistry of detrital zircons from cambrian sandstones of the severnaya Zemlya archipelago and Northern Taimyr (Russian high arctic)
AU - Ershova, Victoria
AU - Prokopiev, Andrei
AU - Khudoley, Andrey
AU - Andersen, Tom
AU - Kullerud, Kåre
AU - Kolchanov, Daniil
PY - 2020/1
Y1 - 2020/1
N2 - U–Pb and Lu–Hf isotope analyses of detrital zircons collected from metasedimentary rocks from the southern part of Kara Terrane (northern Taimyr and Severnaya Zemlya archipelago) provide vital information about the paleogeographic and tectonic evolution of the Russian High Arctic. The detrital zircon signatures of the seven dated samples are very similar, suggesting a common provenance for the clastic detritus. The majority of the dated grains belong to the late Neoproterozoic to Cambrian ages, which suggests the maximum depositional age of the enclosing sedimentary units to be Cambrian. The εHf(t) values indicate that juvenile magma mixed with evolved continental crust and the zircons crystallized within a continental magmatic arc setting. Our data strongly suggest that the main provenance for the studied clastics was located within the Timanian Orogen. A review of the available detrital zircon ages from late Neoproterozoic to Cambrian strata across the wider Arctic strongly suggests that Kara Terrane, Novaya Zemlya, Seward Peninsula (Arctic Alaska), Alexander Terrane, De Long Islands, and Scandinavian Caledonides all formed a single tectonic domain during the Cambrian age, with clastics predominantly sourced from the Timanian Orogen.
AB - U–Pb and Lu–Hf isotope analyses of detrital zircons collected from metasedimentary rocks from the southern part of Kara Terrane (northern Taimyr and Severnaya Zemlya archipelago) provide vital information about the paleogeographic and tectonic evolution of the Russian High Arctic. The detrital zircon signatures of the seven dated samples are very similar, suggesting a common provenance for the clastic detritus. The majority of the dated grains belong to the late Neoproterozoic to Cambrian ages, which suggests the maximum depositional age of the enclosing sedimentary units to be Cambrian. The εHf(t) values indicate that juvenile magma mixed with evolved continental crust and the zircons crystallized within a continental magmatic arc setting. Our data strongly suggest that the main provenance for the studied clastics was located within the Timanian Orogen. A review of the available detrital zircon ages from late Neoproterozoic to Cambrian strata across the wider Arctic strongly suggests that Kara Terrane, Novaya Zemlya, Seward Peninsula (Arctic Alaska), Alexander Terrane, De Long Islands, and Scandinavian Caledonides all formed a single tectonic domain during the Cambrian age, with clastics predominantly sourced from the Timanian Orogen.
KW - Arctic
KW - Cambrian
KW - Detrital zircon
KW - Paleogeography
KW - Provenance
KW - Severnaya Zemlya
KW - Taimyr
UR - http://www.scopus.com/inward/record.url?scp=85077435753&partnerID=8YFLogxK
UR - http://www.mendeley.com/catalogue/upb-age-hf-isotope-geochemistry-detrital-zircons-cambrian-sandstones-severnaya-zemlya-archipelago-no
U2 - 10.3390/min10010036
DO - 10.3390/min10010036
M3 - Article
AN - SCOPUS:85077435753
VL - 10
JO - Minerals
JF - Minerals
SN - 2075-163X
IS - 1
M1 - 36
ER -
ID: 51631609