Research output: Contribution to journal › Article › peer-review
Age and provenance of the Precambrian Middle Timan clastic succession : Constraints from detrital zircon and rutile studies. / Brustnitsyna, Ekaterina; Ershova, Victoria; Khudoley, Andrei; Maslov, Andrei; Andersen, Tom; Stockli, Daniel; Kristoffersen, Magnus.
In: Precambrian Research, Vol. 371, 106580, 04.2022.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Age and provenance of the Precambrian Middle Timan clastic succession
T2 - Constraints from detrital zircon and rutile studies
AU - Brustnitsyna, Ekaterina
AU - Ershova, Victoria
AU - Khudoley, Andrei
AU - Maslov, Andrei
AU - Andersen, Tom
AU - Stockli, Daniel
AU - Kristoffersen, Magnus
N1 - Publisher Copyright: © 2022 Elsevier B.V.
PY - 2022/4
Y1 - 2022/4
N2 - The Precambrian sedimentary succession of Middle Timan provides important information on the coeval history of Baltica prior to assembly of the Rodinia supercontinent. This study comprises a comprehensive integrated provenance study based on samples collected from Precambrian clastic rocks of the Chetlassky Kamen and Volsko-Vymskaya Ridge. The maximum depositional age of the studied succession is constrained as latest Mesoproterozoic – earliest Neoproterozoic based on the youngest detrital zircon and rutile ages. Metasandstone samples within the succession are arkose, sublitharenite and litharenite. The distributions of detrital zircon U-Pb ages from the studied metasedimentary rocks are very comparable, yielding approximately 50% Mesoproterozoic ages within the ranges 1470 – 1550 and 1170 – 1370 Ma, 45% Paleoproterozoic ages and 5% Archean ages, with predominant populations grouping at 2500–2700 and 1800–1900 Ma. Comparable detrital zircon age distributions within the coeval strata of northern Baltica suggest a common provenance area. Analysis of detrital rutile suggests the widespread distribution of latest Mesoproterozoic – earliest Neoproterozoic metamorphism within the provenance area. A comparison of detrital zircon age distributions from the coeval strata of Baltica and Laurentia also revealed a striking similarity. Therefore, we suggest that clasts were in fact predominantly sourced from the Grenvillian-Sveconorwegian Orogen, with possible reworking of older zircon grains from older sedimentary rocks involved in the deformation and uplift. Our data support the tectonic model invoking a continuation of the Grenvillian-Sveconorwegian Orogen further to the east across the Barents Sea from its closest modern outcrop in Scandinavia.
AB - The Precambrian sedimentary succession of Middle Timan provides important information on the coeval history of Baltica prior to assembly of the Rodinia supercontinent. This study comprises a comprehensive integrated provenance study based on samples collected from Precambrian clastic rocks of the Chetlassky Kamen and Volsko-Vymskaya Ridge. The maximum depositional age of the studied succession is constrained as latest Mesoproterozoic – earliest Neoproterozoic based on the youngest detrital zircon and rutile ages. Metasandstone samples within the succession are arkose, sublitharenite and litharenite. The distributions of detrital zircon U-Pb ages from the studied metasedimentary rocks are very comparable, yielding approximately 50% Mesoproterozoic ages within the ranges 1470 – 1550 and 1170 – 1370 Ma, 45% Paleoproterozoic ages and 5% Archean ages, with predominant populations grouping at 2500–2700 and 1800–1900 Ma. Comparable detrital zircon age distributions within the coeval strata of northern Baltica suggest a common provenance area. Analysis of detrital rutile suggests the widespread distribution of latest Mesoproterozoic – earliest Neoproterozoic metamorphism within the provenance area. A comparison of detrital zircon age distributions from the coeval strata of Baltica and Laurentia also revealed a striking similarity. Therefore, we suggest that clasts were in fact predominantly sourced from the Grenvillian-Sveconorwegian Orogen, with possible reworking of older zircon grains from older sedimentary rocks involved in the deformation and uplift. Our data support the tectonic model invoking a continuation of the Grenvillian-Sveconorwegian Orogen further to the east across the Barents Sea from its closest modern outcrop in Scandinavia.
KW - Baltica
KW - Detrital rutile
KW - Detrital zircon
KW - Grenvillian-Sveconorwegian Orogen
KW - Mesoproterozoic
KW - Middle Timan
KW - Neoproterozoic
UR - http://www.scopus.com/inward/record.url?scp=85124593625&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/0110b943-6493-3703-8a9b-3f2e6bfa9a31/
U2 - 10.1016/j.precamres.2022.106580
DO - 10.1016/j.precamres.2022.106580
M3 - Article
AN - SCOPUS:85124593625
VL - 371
JO - Precambrian Research
JF - Precambrian Research
SN - 0301-9268
M1 - 106580
ER -
ID: 94128062