Sedimentary Mercury Enrichments as a Tracer of Large Igneous Province Volcanism
Geophysical Monograph Series, Page 247-262., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Lawrence M. E. Percival +3 more
wiley +10 more sources
Diversification and speciation among Laurentian brachiopods during the GOBE: insights from basinal and regional analyses [PDF]
Estonian Journal of Earth Sciences, 2023 Full understanding of diversity dynamics during the Great Ordovician Biodiversification Event (GOBE) requires analyses that investigate regional and species-level data and patterns. In this study, we combine bedding-plane scale data on brachiopod species
Alycia L. Stigall +5 more
doaj +1 more source
Ordovician Bryozoa of Estonia [PDF]
Estonian Journal of Earth Sciences, 2023 sessile colonial, filter-feeding animals, many of which possess hard carbonate skeletons of different morphology. The bryozoan faunas of the Ordovician of Estonia were studied early by famous naturalists such as Karl Eduard von Eichwald and WÅadisÅaw ...
Andrej Ernst
doaj +1 more source
Fine characterization of Ordovician inner fault-controlled bodies in area A of Tarim Basin
Youqi dizhi yu caishoulu, 2023 It is a major difficulty to accurately characterize the inner fault-controlled bodies in the exploration and development of fault-controlled oil and gas reservoirs because the fault-controlled bodies are diverse in reservoir space， complicated in ...
YANG Xinrui +3 more
doaj +1 more source
Stratigraphy and facies differences of the Middle Darriwilian Isotopic Carbon Excursion (MDICE) in Baltoscandia [PDF]
Estonian Journal of Earth Sciences, 2020 The Middle Darriwilian Isotopic Carbon Excursion (MDICE) is a global isotopic event described in sections from different palaeocontinents. Here we present new stable carbon isotopic data from carbonates of ten sections in different parts of the ...
Leho Ainsaar +5 more
doaj +1 more source
The earliest cornulitid on the internal surface of the illaenid pygidium from the Middle Ordovician of Estonia [PDF]
Estonian Journal of Earth Sciences, 2017 The earliest cornulitid Cornulites sp. appears in the Darriwilian (Lasnamägi Regional Stage) of Estonia. Internal annulation is present in all Middle Ordovician cornulitids and could be a plesiomorphic character for the group.
Olev Vinn, Ursula Toom, Mare Isakar
doaj +1 more source
Shiyou shiyan dizhi, 2022 As an important type of hydrocarbon reservoir, microbial carbonate contains great amount of hydrocarbon resources. The recent discovery of industrial gas in the Majiagou Formation in the east-central part of the Ordos Basin indicates that this type of ...
Juntao ZHANG +4 more
doaj +1 more source
Acta Societatis Botanicorum Poloniae, 2022 During the Palaeozoic Era, plants conquered the land and covered greater and greater areas from coastal lowlands to highlands. Palaeobotanical data based on macroremains from Polish Palaeozoic strata complete and enrich the picture of these processes ...
Grzegorz Pacyna, Maria Barbacka
doaj +1 more source
Gold in biogenic apatites of the Baltic-Ladoga phosphorite basin
Записки Горного института, 2022 The distribution of gold in biogenic apatites from the Ordovician deposits in the northwest of the East European Platform shows that the maximum concentration of gold in apatites is found within the Ladoga-Baltic suture zone.
Sergey B. Felitsyn, Nadezhda A. Alfimova
doaj +1 more source
Upper Ordovician hardgrounds – from localized surfaces to global biogeochemical events [PDF]
Estonian Journal of Earth Sciences, 2023 Upper Ordovician hardgrounds display a spectrum of complexity reflecting a range of local to global-scale processes. Hardgrounds are cemented seafloor surfaces typically marked by the presence of encrusting taxa and borings.
Timothy R. Paton +4 more
doaj +1 more source