U-Pb dating and provenance of detrital zircons from the Upper Precambrian deposits of North Timan

V. L. Andreichev, A. A. Soboleva, George E Gehrels

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Timan comprises the southwest edge of the Pechora Plate. The plate basement is composed of variably metamorphosed sedimentary, mainly terrigenous, and igneous rocks of the Late Precambrian age that are generally overlain by Ordovician-Cenozoic platform cover. Poor exposition and discontinuous distribution of the Upper Precambrian outcrops of dominantly fossil-free sedimentary rocks cause considerable disagreements in stratigraphic correlation. This applies equally to North Timan, which represents an uplifted block of basement, in which sedimentary-metamorphic rocks form the Barminskaya Group (~5000 m thick), previously dated as Early Riphean to Vendian. Earlier Rb-Sr and Sm-Nd isotope dating of schist and cross-cutting gabbro-dolerite and dolerite established the timing of greenschist facies metamorphism at 700 Ma. Thus, Late Riphean age of the Barminskaya Group has been suggested. Results of local U-Pb dating of detrital zircon from silty sandstones of the Malochernoretskaya Formation, which constitutes the middle part of the outcropping section of the Barminskaya Group, confirm this conclusion. Age data for 95 zircon grains cover the range of 1035-2883 Ma with age peaks at 1150, 1350, 1550, 1780, and 1885 Ma. The minimum age of zircons, considered as the lower age constraint on sediment deposition, provides grounds to date the Barminskaya Group as Late Riphean and indicates eroded rock complexes of the Fennoscandian Shield as the possible provenance areas.

Original languageEnglish (US)
Pages (from-to)147-159
Number of pages13
JournalStratigraphy and Geological Correlation
Volume22
Issue number2
DOIs
StatePublished - Mar 2014

Fingerprint

provenance
Precambrian
zircon
Riphean
diabase
sedimentary rock
Vendian
stratigraphic correlation
greenschist facies
gabbro
igneous rock
metamorphic rock
schist
dating
Ordovician
shield
outcrop
metamorphism
sandstone
isotope

Keywords

  • detrital zircons
  • North Timan
  • U-Pb isotopic age
  • Upper Precambrian

ASJC Scopus subject areas

  • Geology
  • Stratigraphy
  • Palaeontology

Cite this

U-Pb dating and provenance of detrital zircons from the Upper Precambrian deposits of North Timan. / Andreichev, V. L.; Soboleva, A. A.; Gehrels, George E.

In: Stratigraphy and Geological Correlation, Vol. 22, No. 2, 03.2014, p. 147-159.

Research output: Contribution to journalArticle

@article{05ad368c886e4df0b7fe980701a8548d,
title = "U-Pb dating and provenance of detrital zircons from the Upper Precambrian deposits of North Timan",
abstract = "Timan comprises the southwest edge of the Pechora Plate. The plate basement is composed of variably metamorphosed sedimentary, mainly terrigenous, and igneous rocks of the Late Precambrian age that are generally overlain by Ordovician-Cenozoic platform cover. Poor exposition and discontinuous distribution of the Upper Precambrian outcrops of dominantly fossil-free sedimentary rocks cause considerable disagreements in stratigraphic correlation. This applies equally to North Timan, which represents an uplifted block of basement, in which sedimentary-metamorphic rocks form the Barminskaya Group (~5000 m thick), previously dated as Early Riphean to Vendian. Earlier Rb-Sr and Sm-Nd isotope dating of schist and cross-cutting gabbro-dolerite and dolerite established the timing of greenschist facies metamorphism at 700 Ma. Thus, Late Riphean age of the Barminskaya Group has been suggested. Results of local U-Pb dating of detrital zircon from silty sandstones of the Malochernoretskaya Formation, which constitutes the middle part of the outcropping section of the Barminskaya Group, confirm this conclusion. Age data for 95 zircon grains cover the range of 1035-2883 Ma with age peaks at 1150, 1350, 1550, 1780, and 1885 Ma. The minimum age of zircons, considered as the lower age constraint on sediment deposition, provides grounds to date the Barminskaya Group as Late Riphean and indicates eroded rock complexes of the Fennoscandian Shield as the possible provenance areas.",
keywords = "detrital zircons, North Timan, U-Pb isotopic age, Upper Precambrian",
author = "Andreichev, {V. L.} and Soboleva, {A. A.} and Gehrels, {George E}",
year = "2014",
month = "3",
doi = "10.1134/S0869593814020026",
language = "English (US)",
volume = "22",
pages = "147--159",
journal = "Stratigraphy and Geological Correlation",
issn = "0869-5938",
publisher = "Maik Nauka-Interperiodica Publishing",
number = "2",

}

TY - JOUR

T1 - U-Pb dating and provenance of detrital zircons from the Upper Precambrian deposits of North Timan

AU - Andreichev, V. L.

AU - Soboleva, A. A.

AU - Gehrels, George E

PY - 2014/3

Y1 - 2014/3

N2 - Timan comprises the southwest edge of the Pechora Plate. The plate basement is composed of variably metamorphosed sedimentary, mainly terrigenous, and igneous rocks of the Late Precambrian age that are generally overlain by Ordovician-Cenozoic platform cover. Poor exposition and discontinuous distribution of the Upper Precambrian outcrops of dominantly fossil-free sedimentary rocks cause considerable disagreements in stratigraphic correlation. This applies equally to North Timan, which represents an uplifted block of basement, in which sedimentary-metamorphic rocks form the Barminskaya Group (~5000 m thick), previously dated as Early Riphean to Vendian. Earlier Rb-Sr and Sm-Nd isotope dating of schist and cross-cutting gabbro-dolerite and dolerite established the timing of greenschist facies metamorphism at 700 Ma. Thus, Late Riphean age of the Barminskaya Group has been suggested. Results of local U-Pb dating of detrital zircon from silty sandstones of the Malochernoretskaya Formation, which constitutes the middle part of the outcropping section of the Barminskaya Group, confirm this conclusion. Age data for 95 zircon grains cover the range of 1035-2883 Ma with age peaks at 1150, 1350, 1550, 1780, and 1885 Ma. The minimum age of zircons, considered as the lower age constraint on sediment deposition, provides grounds to date the Barminskaya Group as Late Riphean and indicates eroded rock complexes of the Fennoscandian Shield as the possible provenance areas.

AB - Timan comprises the southwest edge of the Pechora Plate. The plate basement is composed of variably metamorphosed sedimentary, mainly terrigenous, and igneous rocks of the Late Precambrian age that are generally overlain by Ordovician-Cenozoic platform cover. Poor exposition and discontinuous distribution of the Upper Precambrian outcrops of dominantly fossil-free sedimentary rocks cause considerable disagreements in stratigraphic correlation. This applies equally to North Timan, which represents an uplifted block of basement, in which sedimentary-metamorphic rocks form the Barminskaya Group (~5000 m thick), previously dated as Early Riphean to Vendian. Earlier Rb-Sr and Sm-Nd isotope dating of schist and cross-cutting gabbro-dolerite and dolerite established the timing of greenschist facies metamorphism at 700 Ma. Thus, Late Riphean age of the Barminskaya Group has been suggested. Results of local U-Pb dating of detrital zircon from silty sandstones of the Malochernoretskaya Formation, which constitutes the middle part of the outcropping section of the Barminskaya Group, confirm this conclusion. Age data for 95 zircon grains cover the range of 1035-2883 Ma with age peaks at 1150, 1350, 1550, 1780, and 1885 Ma. The minimum age of zircons, considered as the lower age constraint on sediment deposition, provides grounds to date the Barminskaya Group as Late Riphean and indicates eroded rock complexes of the Fennoscandian Shield as the possible provenance areas.

KW - detrital zircons

KW - North Timan

KW - U-Pb isotopic age

KW - Upper Precambrian

UR - http://www.scopus.com/inward/record.url?scp=84898738249&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84898738249&partnerID=8YFLogxK

U2 - 10.1134/S0869593814020026

DO - 10.1134/S0869593814020026

M3 - Article

AN - SCOPUS:84898738249

VL - 22

SP - 147

EP - 159

JO - Stratigraphy and Geological Correlation

JF - Stratigraphy and Geological Correlation

SN - 0869-5938

IS - 2

ER -