EVENT STRATIGRAPHY AND CORRELATION PROBLEMS OF THE ORDOVICIAN STRATA OF GORNY ALTAI AND SALAIR
Геодинамика и тектонофизика, 2021 Study of the Ordovician sedimentary sequences of Gorny Altai and Salair has revealed lithological and paleontological features correlating with global sedimentary events:(1) The Acerocare Regressive Event (an initial event in the Early Tremadocian);(2 ...
N. V. Sennikov +5 more
doaj +1 more source
Ordovician conodonts of the Katkoyeh formation in the Kuh-e-Bonorg section, Kalmard Horst (west of Tabas) [PDF]
Journal of Stratigraphy and Sedimentology Researches, 2020 In this research, Ordovician conodonts obtained from the sedimentary succession of the informal Katkoyeh formation is studied in a stratigraphic section at the south of Kuh-e-Bonorg, eastern flank of Kalmard Anticline in the west of Tabas (Central Iran).
Mohammad Nezhadabbas +3 more
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Variability of conch morphology in a cephalopod species from the Cambrian to Ordovician transition strata of Siberia [PDF]
Acta Palaeontologica Polonica, 2020 A block of stromatolitic limestone found on the Angara River shore near Kodinsk, Siberia, derived from the exposed nearby Ust-kut Formation, has yielded a sample of 146 ellesmeroceratid nautiloid specimens.
Jerzy Dzik
doaj +1 more source
First record of the Ordovician fauna in Mila-Kuh, eastern Alborz, northern Iran [PDF]
Estonian Journal of Earth Sciences, 2015 Restudy of the Cambrian–Ordovician boundary beds, traditionally assigned to the Mila Formation Member 5 in Mila-Kuh, northern Iran, for the first time provides convincing evidence of the Early Ordovician (Tremadocian) age of the uppermost part of the ...
Mohammad-Reza Kebria-ee Zadeh +4 more
doaj +1 more source
Discovery of the messaoudensis–trifidum acritarch assemblage (upper Tremadocian–lower Floian, Lower Ordovician) in the subsurface of Morocco [PDF]
Estonian Journal of Earth Sciences, 2015 The upper Tremadocian to lower Floian messaoudensis–trifidum acritarch assemblage was first described from the Skiddaw Group of England and subsequently from several localities on the Gondwanan margin that were positioned in high southern latitudes ...
Hendrik Nowak +3 more
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Trilobites of Thailand's Cambrian–Ordovician Tarutao Group and their geological setting
Papers in Palaeontology, Volume 9, Issue 5, September/October 2023., 2023 Abstract Tuff‐bearing upper Cambrian to lowermost Ordovician strata on Ko Tarutao island, Satun province, southernmost peninsular Thailand, contain a rich trilobite fauna relevant to global biostratigraphy, peri‐Gondwanan palaeogeography and shifting evolutionary mode.
Shelly J. Wernette +3 more
wiley +1 more source
The Paleozoic Hydrocarbon System in the Gotland Basin (Central Baltic Sea) Leaks
Earth and Space Science, Volume 10, Issue 6, June 2023., 2023 Abstract The Baltic Basin is known for its numerous Paleozoic hydrocarbon reservoirs. There is published evidence that hydrocarbons are leaking from the seafloor, however, little is known about the hydrocarbon migration pathways from Paleozoic source and reservoir rocks toward the seafloor and their escape structures. To investigate these processes, we
Arne Warwel +9 more
wiley +1 more source
Early diagenetic transformation stages revealed by micro-analytical studies of shelly phosphorites, Rakvere region [PDF]
Estonian Journal of Earth Sciences, 2023 FurongianâTremadocian phosphorites of Estonia are sandstone rich in biogenic apatite, represented by brachiopod detritus. The study focuses on the mineralogical and micro-analytical characterisation of phosphorites from the Aseri, Toolse, and Kabala ...
Sophie Graul +4 more
doaj +1 more source
Papers in Palaeontology, Volume 8, Issue 4, July/August 2022., 2022 Abstract New acritarch data from the Kistedalen Formation based on two sections with continuous exposure enable us to establish the most detailed Miaolingian acritarch biozonation in Baltica to date. Six interval zones previously established in Gondwana, the Eliasum llaniscum, Cristallinium cambriense, Adara alea, Timofeevia lancarae, Cristallinium ...
Teodoro Palacios +8 more
wiley +1 more source
Early Ordovician (Tremadocian) brachiopods from the Eastern Alborz Mountains, Iran [PDF]
Estonian Journal of Earth Sciences, 2011 Six linguliform and two rhynchonelliform brachiopods, including three new species Eurytreta ahmadii, Wahwahlingula kharbashi and Nanorthis bastamensis are described from Tremadocian strata (Paltodus deltifer deltifer conodont Biozone) in the Deh-Molla ...
Leonid E. Popov +2 more
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