... Diagenesis Illitization In the northern part of the Baltic sedimentary paleobasin of the East-European Platform, the unmetamorphosed nature of the entire section of the Vendian to Devonian sediments, including Lower Cambrian unlithified clayey sediments, implies a very stable tectonic history...

...Figure 1. Regional facies map, showing confacies belts of the Baltic paleobasin and the extent of the Baltic Syneclise. TTZ, Teisseyre-Tornquist Zone. Compiled from Jaanusson ( 1976 ), Lazauskiene et al. ( 2003 ), and Tuuling ( 2019 ). The study region is outlined with a gray square. ...

...Anna V. Koromyslova; Petr V. Fedorov Abstract Bryozoans from the Dapingian (Middle Ordovician) of the Baltic paleobasin remain poorly studied and their taxonomic composition is unclear. In this paper, three bryozoan taxa, a bifoliate cystoporate Planopora volkhovensis n. gen. n. sp., a trepostome...

...Tarmo Kiipli; Enli Kiipli; Toivo Kallaste; Rutt Hints; Peeter Somelar; Kalle Kirsimäe Abstract The composition of altered volcanic ash of the Late Ordovician Kinnekulle bed was studied in geological sections of the Baltic Paleobasin. The composition of altered ash varies with paleosea depth from...

... for the first time related to a substantial increase in anachronistic facies. Strata deposited during and shortly after the Lau Event in the Baltic paleobasin (Eke and Burgsvik Formations) include evidence for reduced grazing and infaunal activity in contemporaneous shallow low-latitude seas, e.g., flat-pebble...

... latitudes ( Melchin et al. 2004 ). The epicontinental Baltic paleobasin in modern Estonia was characterized by a wide range of tropical environments and diverse biotas ( Hints et al. 2008 ). In the outcrop area, including Hiiumaa Island ( Fig. 1 ), the Early Silurian succession is represented by shallow...

... Dasycladales inhabit tropical to subtropical shallow subtidal settings (Berger and Kaever, 1992 ; Graham et al., 2009), preferring shallow-marine euhaline waters, protected from strong storm and ground waves. During early Silurian times, the Baltic Paleobasin was located...

... Estonia ( Fig. 1 ) was part of the Baltica paleocontinent, which was located in equatorial latitudes ( Melchin et al. 2004 ). The middle and western part of modern Estonia, including Saaremaa Island, was covered by the epicontinental Baltic paleobasin. This basin was characterized by diverse tropical...

[email protected] (N.V. Sennikov) 8 2 2016 16 3 2016 © 2017, IGM, Siberian Branch of the RAS 2017 IGM, Siberian Branch of the RAS Substrate-dependence of the trilobite communities, compaction and agitation degree of the host sediments, and the relative paleobasin bathymetry are widely...

... reveals different types of thanatocoenoses, supporting the hypothesis of a deepening gradient along the Baltic-Ladoga Klint. The storages of the figured specimens are coded as follows: TUG—University of Tartu, Institute of Geology; TTUGI—Institute of Geology of the Tallinn Technical University; NMB...

.... Compared to schematic paleobiogeographic generalisations of the paleontological data, the chorological analysis demands for higher standards of source data quality that characterise paleogeographic conditions of faunal occurrence within the entire paleobasin. Therefore, representative and comparable data...

... the Yenisei–Khatanga, Novaya Zemlya, and Kara shallow-water straits ( Fig. 4 ). According to plate tectonic reconstructions, the Yenisei–Khatanga strait was directed toward the North Pole of that time while the other straits were located much farther in the south ( Fig. 4 ). The paleobasin was like...

... of this paleobasin are substantiated. Schemes of zonation have been compiled for the Nyaian, Ugorian, Kimaian, Mukteian, Volginian, Kirenskian–Kudrinian, Chertovskian, and Baksanian Horizons of the regional Ordovician stratigraphic chart of the Siberian Platform. The schemes present biofacies different in lithologic...

...., 2008 ). Nestor and Einasto ( 1977 ) described five depositional environments in the Baltic paleobasin, from deep basin to tidal flats. The Hilliste Formation was deposited at the transition between the open shelf and shoal paleoenvironments (Nestor, 1995 ). The suprageneric classification...

... appeared, marking a notable change in the overall character of the paleobasin ( Nestor and Einasto 1997 ). Both of the specimens studied here derive from shallow water, normal marine carbonates ( Nestor and Einasto 1997 ). Fig. 1.— Locality map. Kohtla-Järve locality (lower Sandbian) and Aluvere...

... K. & Jørgensen P. 2000 . Mineralogical and Rb–Sr isotope studies of low-temperature diagenesis of Lower Cambrian clays of the Baltic paleobasin of North Estonia . Clays and Clay Minerals 48...

... , Mineralogical and Rb-Sr isotope studies of low temperature diagenesis of Lower Cambrian clays of the Baltic paleobasin of North Estonia : Clay and Clay Minerals , 48 . 95 - 105 . Kump , L.R. , Arthur , M.A. , Patkowski , M.E. , Gibbs , M.T. , Pinkus , D.S. , and Sheehan , P.M...

... – – – Cherskiella inflata Eriekhe Uochak – Sakkyryr – – – – Cherskiella sulcata Eriekhe Uochak – – – – – – Maraphonia sp. Eriekhe Uochak – – – – – – Martinssonopsis sp. Middle, Upper Ordovician of Siberia           Hesslandites sp. Ordovician of Baltics and Northeast...