The Neoproterozoic of Baltica—stratigraphy, palaeobiology and general geological evolution

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Abstract

Western Baltica contains numerous Neoproterozoic rock successions recording deposition in a variety of settings, including basinal, deep and shallow-shelf passive margin and intracratonic continental, fluvial and shallow-marine environments. Neoproterozoic pre-Varangerian episodic emplacement of dolerite swarms (1020-870 Ma; 720 ± 260–665 ± 10 Ma) and post-Varangerian (late Vendian or Ediacaran ∼ 551 ± 4.0 Ma) basaltic volcanism in western Baltica are related to episodes of rifting and paroxysmal stages of faulting that were followed by erosion and basin infilling. Tentative biostratigraphic correlation of successions in the western Baltoscandian basins and in the Volhyn Aulacogen in the East European Platform (EEP) suggests that initial rifting, formation of embryonic fault basins in western Baltica and infilling of rift basins within the core of Baltica might be largely contemporaneous events restricted to the late Riphean and bracketed in time to around 800-750 Ma. The biostratigraphic correlation and radiometric age control of pre-Varangerian rift deposition in the Lake Vättern Graben in South Sweden with allochthonous rock succession in the Hedmark Basin in southern Norway (Vidal and Nystuen, 1990a) provide additional evidence to confirm the time frame of basin formation as a response to crustal fracturing of western Baltoscandia ∼ 800-700 Ma ago. Sedimentation following late Riphean and Vendian rifting in Baltica was dominated by quartz arenites of considerable thickness on stable shallow shelves, thus indicating stabilization at the onset of the Early Cambrian transgressions. The earliest Cambrian successions on the western border of Baltica witness of moderate basin subsidence and crustal instability extending well into early Holmia times.

References (128)

  • AreńB.

    Possible Vendian Tillites in eastern Poland

  • AreńB. et al.

    Charakterystyka stratygraficzno-litologiczna wendu i kambru dolnego

    Prace Instytutu Geologicznego

    (1978)
  • AreńB. et al.

    The Vendian and Lower Cambrian in the Polish part of the East European Platform

    Biul. Inst. Geol.

    (1979)
  • AwramikS.M. et al.

    Prokaryotic and eukaryotic microfossils from a Proterozoic/Phanerozoic transition in China

    Nature

    (1985)
  • BanksN.L. et al.

    Late Precambrian and Cambro-Ordovician sedimentation in East Finnmark

    Nor. Geol. Unders.

    (1971)
  • BeckinsaleR.D. et al.

    Potassium-argon ages for basic dykes from East Finnmark: stratigraphical implications

    Scot. J. Geol.

    (1975)
  • BenusA.P.

    Sedimentological context of a deep-water Ediacaran fauna (Mistaken Point Formation, Avalon zone, eastern Newfoundland)

  • BergströmJ.

    The Caledonian margin of the Fennoscandian shield during the Cambrian

  • BergströmJ.

    Strike-slip faulting and Cambrian biogeography around the Tornquist Zone

    Geol. Fören. Stockholm Förh.

    (1984)
  • Bertrand-SarfatiJ. et al.

    Columnar stromatolites of the Terminal Precambrian Porsanger Dolomite and Grasdal Formation of Finnmark, Northern Norway

    Nor. Geol. Tiddskr.

    (1980)
  • BjørlykkeK.

    Sedimentary petrology of the sparagmites of the Rena district, S. Norway

    Nor. Geol. Unders.

    (1966)
  • BjørlykkeK. et al.

    Late Precambrian tillites of South Norway

  • BjørlykkeK. et al.

    Latest Precambrian and Eocambrian stratigraphy of Norway

    Nor. Geol. Unders.

    (1967)
  • BjørlykkeK. et al.

    Late Precambrian sedimentation in the central sparagmite basin of South Norway

    Nor. Geol. Tidsskr.

    (1976)
  • BockelieJ.F. et al.

    The southeastern part of the Scandinavian Caledonides

  • BonhommeM.G. et al.

    Rbsingle bondSr and Ksingle bondAr isotopic data on shale and siltstone from the Visingsögroup, Lake Vättern basin, Sweden

    Geol. Fören. Stockholm Förh.

    (1984)
  • BowringS.A. et al.

    Calibrating rates of early Cambrian evolution

    Science

    (1993)
  • Brochwicz-LewinskiW. et al.

    Wielkoskalowe ruchy przesuwcze wzdluz SW brzegu platformy wschodnioeuropejskiej we wczesnym paleozoiku

    Przegl. Geol.

    (1981)
  • Brochwicz-LewinskiW. et al.

    Position tectonique du massif de Haute-Silésie avant le Permienàla lumière de données nouvelles sur le Cambrien de cette région

    C.R. Acad. Sci. Paris

    (1986)
  • ClaessonS.

    The age of the Ottfjället dolerites of Särv Nappe, Swedish Caledonides

    Geol. Fören. Stockholm Förh.

    (1976)
  • ClaessonS.

    The age of the Ottfjället dolerites of Särv Nappe, Swedish Caledonides: a reply

    Geol. Fören. Stockholm Förh.

    (1977)
  • CompstonW. et al.

    Numerical ages of volcanics and the earliest faunal zone within the Late Precambrian of East Poland

    J. Geol. Soc. London

    (1995)
  • Conway MorrisS.

    Ediacaran-like fossils in Cambrian Rurgess Shale-type faunas of North America

    Palaeontology

    (1993)
  • DadlezR.

    O koncepcji wczesnopaleozoicznych wielkich ruchow przesuwczych wzdluz krawedzi plyty laurentyjskiej i baltyckiej

    Przegl. Geol.

    (1983)
  • DamassaS.P. et al.

    Micropaleontology of the late Proterozoic Arcoona Quartzite Member of the Tent Hill Formation, Stuart Shelf, South Australia

    Alcheringa

    (1986)
  • DreyerT.

    Late Proterozoic (Vendian) to Early Cambrian sedimentation in the Hedmark Group, southwestern part of the Sparagmite Region, southern Norway

    Nor. Geol. Unders.

    (1988)
  • EdwardsM.B.

    Glacial retreat sedimentation in the Smalfjorden Formation, Late Precambrian, North Norway

    Sedimentology

    (1975)
  • EdwardsM.B.

    Sedimentology of the Upper Proterozoic glacial record, Vestertana Group, Finnmark, North Norway

    Nor. Geol. Unders. Bull.

    (1984)
  • EnglundJ.O.

    Sparagmittgruppens bergarter ved Fåvang, Gudbrandsdalen

    En sedimentologisk og tektonisk underskelse

    Nor. Geol. Unders.

    (1966)
  • EnglundJ.O.

    Sedimentological and structural investigations of the Hedmark Group in the Tretten Øyer-Fåberg district, Gudbrandsdalen

    Nor. Geol. Unders.

    (1972)
  • EnglundJ.O.

    Stratigraphy and structure of the Ringebu-Vinstra district, Gudbrandsdalen; with a short analysis of the western part of the sparagmite region in southern Norway

    Nor. Geol. Unders.

    (1973)
  • EsmarkJ.

    Reise fra Christiania til Trondhjem

    (1829)
  • FarmerJ. et al.

    Ediacaran medusoid fossils from the Innerelva Member (late Proterozoic) of Digermul Peninsula, Tanafjorden area, northeastern Finnmark

    Geol. Mag.

    (1992)
  • FøynS.

    The late Precambrian in northern Scandinavia

  • GeeD.G.

    A tectonic model for the central part of the Scandinavian Caledonides

    Am. J. Sci.

    (1975)
  • GorbatschevR.

    Precambrian basement of the Scandinavian Caledonides

  • GuterchA.

    Structure and physical properties of the earth's crust in Poland in the light of new data of DSS

    Publ. Geophys. Inst. Pol. Acad. Sci.

    (1977)
  • HagenfeldtS.

    Lower Cambrian acritarchs from the Baltic Depression and south-central Sweden, taxonomy and biostratigraphy

    Stockholm Contrib. Geol.

    (1989)
  • HofmannH.J. et al.

    Ediacaran remains from intertillite beds in northwestern Canada

    Geology

    (1990)
  • JenkinsR.J.F. et al.

    The record and stratigraphic implications of organicwalled microfossils from the Ediacaran (terminal Proterozoic) of South Australia

    Geol. Mag.

    (1992)
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