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Steep oceanic DIC δ13C depth gradient during the Hirnantian Glaciation
The Hirnantian carbon isotopic excursion (HICE) was characterized by a positive δ 13 C
excursion (up to~+ 7‰) of oceanic dissolved inorganic carbon (DIC). However its …
excursion (up to~+ 7‰) of oceanic dissolved inorganic carbon (DIC). However its …
Syndepositional and diagenetic processes in the pigmentation of Middle Ordovician carbonate red beds in South China
M Liu, C Fang, D Chen - Sedimentary Geology, 2024 - Elsevier
Marine red beds (MRBs) are often attributed to specific redox environments during
syndepositional and early diagenetic phases. During the Middle Ordovician, a succession of …
syndepositional and early diagenetic phases. During the Middle Ordovician, a succession of …
The Ordovician of Scandinavia: a revised regional stage classification
Abstract The Ordovician of Scandinavia (ie Denmark, Norway and Sweden) has been
investigated for over two centuries and, through time, various chronostratigraphic schemes …
investigated for over two centuries and, through time, various chronostratigraphic schemes …
[HTML][HTML] Calcium isotope constraints on a Middle Ordovician carbon isotope excursion
Abstract The Middle Ordovician Darriwilian Stage (∼ 469–458 Ma) records a∼ 2‰ positive
carbon isotope shift known as the MDICE (Mid-Darriwilian Carbon Isotope Excursion) …
carbon isotope shift known as the MDICE (Mid-Darriwilian Carbon Isotope Excursion) …
Climate changes in the pre-Hirnantian Late Ordovician based on δ18Ophos studies from Estonia
Results of conodont-based δ 18 O phos studies from two core sections in Estonia
(Mehikoorma-421 and Valga-10) indicate that the pre-Hirnantian Late Ordovician was …
(Mehikoorma-421 and Valga-10) indicate that the pre-Hirnantian Late Ordovician was …
Marine oxygenation, deoxygenation, and life during the Early Paleozoic: an overview
Abstract The Early Paleozoic (Cambrian-Devonian) witnessed a series of significant
environmental changes including ocean-atmosphere oxygenation and progressive cooling …
environmental changes including ocean-atmosphere oxygenation and progressive cooling …
Progressive expansion of seafloor anoxia in the Middle to Late Ordovician Yangtze Sea: implications for concurrent decline of invertebrate diversity
Abstract The Great Ordovician Biodiversification Event (GOBE) achieved its peak during the
Middle Ordovician, likely in association with climatic cooling and a rise of atmospheric O 2 …
Middle Ordovician, likely in association with climatic cooling and a rise of atmospheric O 2 …
Middle Ordovician paleoenvironmental evolution of the western Laurentian carbonate platform: Evidence for persistent oxygenation of the shallow ocean and …
Abstract The Great Ordovician Biodiversification Event (GOBE) encompasses a series of
rapid and sustained diversification pulses unparalleled in Earth history. Despite the …
rapid and sustained diversification pulses unparalleled in Earth history. Despite the …
Seawater signatures of Ordovician climate and environment
Tracking climatic changes throughout the Ordovician is crucial to a better understanding of
the coevolution of life and environment on Earth. Ordovician climate fluctuations have been …
the coevolution of life and environment on Earth. Ordovician climate fluctuations have been …
Lithium isotope stratigraphy and Ordovician weathering
Understanding the role of silicate weathering in controlling the long-term carbon cycle is
essential in exploring multi-million-year scale climate variabilities and links to tectonics and …
essential in exploring multi-million-year scale climate variabilities and links to tectonics and …