Deconstructing the Lomagundi-Jatuli carbon isotope excursion

MSW Hodgskiss, PW Crockford… - Annual Review of Earth …, 2023 - annualreviews.org
The early to mid-Paleoproterozoic Lomagundi-Jatuli Excursion (LJE) is ostensibly the
largest magnitude (approximately+ 5 to+ 30‰), longest duration (ca. 130–250 million years) …

[HTML][HTML] Locating the BACE of the Cambrian: Bayan Gol in southwestern Mongolia and global correlation of the Ediacaran–Cambrian boundary

T Topper, MJ Betts, D Dorjnamjaa, G Li, L Li… - Earth-Science …, 2022 - Elsevier
The diversification of animals during the Cambrian Period is one of the most significant
evolutionary events in Earth's history. However, the sequence of events leading to the origin …

Modeling the impacts of diagenesis on carbonate paleoredox proxies

KV Lau, DS Hardisty - Geochimica et Cosmochimica Acta, 2022 - Elsevier
The geochemistry of the carbonate sedimentary record is invaluable for understanding the
ancient seawater evolution of carbon and redox-sensitive elements. However, the …

Vertical decoupling in Late Ordovician anoxia due to reorganization of ocean circulation

A Pohl, Z Lu, W Lu, RG Stockey, M Elrick, M Li… - Nature …, 2021 - nature.com
Geochemical redox proxies indicate that seafloor anoxia occurred during the latest
Ordovician glacial maximum, coincident with the second pulse of the Late Ordovician mass …

The grandest of them all: the Lomagundi–Jatuli Event and Earth's oxygenation

AR Prave, K Kirsimäe, A Lepland… - Journal of the …, 2022 - lyellcollection.org
The Paleoproterozoic Lomagundi–Jatuli Event (LJE) is generally considered the largest, in
both amplitude and duration, positive carbonate C-isotope (δ 13Ccarb) excursion in Earth …

The Ordovician of Scandinavia: a revised regional stage classification

AT Nielsen, P Ahlberg, JOR Ebbestad… - Geological Society …, 2023 - lyellcollection.org
Abstract The Ordovician of Scandinavia (ie Denmark, Norway and Sweden) has been
investigated for over two centuries and, through time, various chronostratigraphic schemes …

Steep oceanic DIC δ13C depth gradient during the Hirnantian Glaciation

S Yang, J Fan, TJ Algeo, GA Shields, Y Zhou, C Li… - Earth-Science …, 2024 - Elsevier
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 …

[HTML][HTML] Sulfidic anoxia in the oceans during the Late Ordovician mass extinctions–insights from molybdenum and uranium isotopic global redox proxies

TW Dahl, EU Hammarlund, CMØ Rasmussen… - Earth-Science …, 2021 - Elsevier
Abstract The Late Ordovician Mass Extinction wiped out 85% of animal species in two
phases (LOME1 and LOME2). The kill mechanisms for the extinction phases are debated …

Linking carbon cycle perturbations to the Late Ordovician glaciation and mass extinction: A modeling approach

J Zhang, C Li, Y Zhong, X Wu, X Fang, M Liu… - Earth and Planetary …, 2024 - Elsevier
Abstract The Hirnantian Stage of the Late Ordovician coincides with a positive carbon
isotope excursion (HICE,∼+ 6‰), a major glaciation, increased volcanic activity, expanded …

A meta-analysis of the Steptoean positive carbon isotope excursion: the SPICEraq database

MA Pulsipher, JD Schiffbauer, MJ Jeffrey… - Earth-Science …, 2021 - Elsevier
Abstract The Steptoean Positive Isotopic Carbon Excursion (SPICE) is a prominent
chemostratigraphic feature in the Lower Paleozoic. It has been used to correlate Upper …