On the graptolite schist's formation, Silurian-Lower Devonian, in the Carpatho-Balkanides of eastern Serbia [PDF]
Geološki Anali Balkanskoga Poluostrva, 2005 The fabric of the Silurian and a part of the Lower Devonian in the Carpatho-Balkanides of eastern Serbia, i.e. in two large geotectonic units, the Kučaj Unit (Getic) and the Luznica Unit (West Kraishte), is reviewed in this paper.
Krstić Branislav +2 more
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Searching for the Ordovician–Silurian boundary in Estonia, Latvia and Lithuania [PDF]
Estonian Journal of Earth Sciences, 2023 The present study focuses on determining the position of the lower boundary of the Silurian System in the eastern Baltic region. To achieve this, we conducted a comprehensive analysis of stable isotopic curves, combined with previously published data on ...
Tõnu Meidla, Olle Hints, Leho Ainsaar
doaj +1 more source
Transitional geometries between gently plunging and steeply plunging folds: an example from the Lower Palaeozoic Brabant Massif, Anglo-Brabant deformation belt, Belgium [PDF]
, 2004 A
Debacker, Timothy +2 more
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Petroleum, 2023 A significant phase of global warming appeared during the Llandovery and productive Silurian hot shale was preserved all over the world. The lower Silurian shale is the main effective source rock for most of the Paleozoic hydrocarbon in Iran and the ...
Ali Rahmani +2 more
doaj +1 more source
Rifting and arc-related early Paleozoic volcanism along the North Gondwana margin: geochemical and geological evidence from Sardinia (Italy) [PDF]
, 2012 Three series of volcanic rocks accumulated during the Cambrian to Silurian in the metasediment-dominated Variscan basement of Sardinia. They provide a record of the changing geodynamic setting of the North Gondwana margin between Upper Cambrian and ...
BUZZI L +3 more
core +1 more source
The trace fossil Zoophycos from the Silurian of Estonia [PDF]
Estonian Journal of Earth Sciences, 2015 Trace fossils of the ichnogenus Zoophycos have been described for the first time from the Silurian of Baltica. They occur in Llandovery pure limestones of middle Estonia and in Ludfordian argillaceous limestones and early Pridoli crinoid grainstones of ...
Olev Vinn, Ursula Toom
doaj +1 more source
Climate change and the selective signature of the Late Ordovician mass extinction [PDF]
, 2012 Selectivity patterns provide insights into the causes of ancient extinction events. The Late Ordovician mass extinction was related to Gondwanan glaciation; however, it is still unclear whether elevated extinction rates were attributable to record ...
Finnegan, Seth +3 more
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The oldest ascocerid cephalopod from the Silurian of Estonia and notes on the biogeography of the order Ascocerida (class Cephalopoda) [PDF]
Estonian Journal of Earth Sciences, 2016 The early Palaeozoic order Ascocerida is a group of morphologically unique and rare cephalopods known from the Ordovician and Silurian rocks of Avalonia, Baltica, Laurentia and Perunica.
Martina Aubrechtova, Tõnu Meidla
doaj +1 more source
Journal of Micropalaeontology, 1985 Abstract. The data obtained from an independent study of acritarchs, chitinozoans and miospores enables the determination of maximum age ranges of samples taken from three wells. These are shown in Fig. 8.ACRITARCHSAt present, samples have been examined from six wells – A1-46, Core 2; E1-81, Cores 3, 4; F1-46, Core 3; D-31, Core 1; A1-81, Core 3 and C1-
Hill, P. J. +2 more
openaire +2 more sources
Evaporites and the salinity of the ocean during the Phanerozoic: Implications for climate, ocean circulation and life [PDF]
, 2005 A compilation of data on volumes and masses of evaporite deposits is used as the basis for reconstruction of the salinity of the ocean in the past.
Balukhovsky, A. N. +5 more
core +1 more source