Carbon-cycle changes during the Toarcian (Early Jurassic) and implications for regional versus global drivers of the Toarcian oceanic anoxic event

MN Remírez, TJ Algeo - Earth-Science Reviews, 2020 - Elsevier
Abstract The Early Jurassic Toarcian oceanic anoxic event (T-OAE) is characterized by an
extinction event, a major sea-level rise, enhanced marine primary productivity, elevated …

Global organic carbon burial during the Toarcian oceanic anoxic event: Patterns and controls

DB Kemp, G Suan, A Fantasia, S Jin, W Chen - Earth-Science Reviews, 2022 - Elsevier
The early Toarcian oceanic anoxic event (T-OAE,~ 183 Ma), also known as the Jenkyns
Event, was one of the most important hyperthermal events of the Phanerozoic, caused by the …

The Jurassic Period

SP Hesselbo, JG Ogg, M Ruhl, LA Hinnov… - Geologic time scale …, 2020 - Elsevier
Ammonites underwent an evolutionary diversification after the mass extinction of the end
Triassic induced by the formation of a Large Igneous province (LIP), and this group provides …

A major sea-level drop briefly precedes the Toarcian oceanic anoxic event: implication for Early Jurassic climate and carbon cycle

FN Krencker, S Lindström, S Bodin - Scientific Reports, 2019 - nature.com
Sea-level change is an important parameter controlling the expansion of oxygen-depleted
conditions in neritic settings during oceanic anoxic events (OAEs). Despite this fundamental …

New age constraints on the Lower Jurassic Pliensbachian–Toarcian Boundary at Chacay Melehue (Neuquén Basin, Argentina)

AH Al-Suwaidi, M Ruhl, HC Jenkyns… - Scientific Reports, 2022 - nature.com
Abstract The Pliensbachian–Toarcian boundary interval is characterized by a~ 3‰ negative
carbon-isotope excursion (CIE) in organic and inorganic marine and terrestrial archives from …

[HTML][HTML] Calibrating the Early Toarcian (Early Jurassic) with stratigraphic black holes (SBH)

W Ruebsam, M Al-Husseini - Gondwana Research, 2020 - Elsevier
Abstract Cyclostratigraphic analyses of Upper Pliensbachian and Lower Toarcian carbon-13
isotope (δ 13 C) data, together with radiometric dating, are used to calibrate biozones and …

The wider context of the Lower Jurassic Toarcian oceanic anoxic event in Yorkshire coastal outcrops, UK

N Thibault, M Ruhl, CV Ullmann, C Korte… - Proceedings of the …, 2018 - Elsevier
Abstract The Toarcian Oceanic Anoxic Event (T-OAE,∼ 183 Ma) was characterized by
enhanced carbon burial, a prominent negative carbon-isotope excursion (CIE) in marine …

[HTML][HTML] An Early Jurassic (Sinemurian–Toarcian) stratigraphic framework for the occurrence of organic matter preservation intervals (OMPIs)

RL Silva, LV Duarte, GD Wach, M Ruhl, D Sadki… - Earth-Science …, 2021 - Elsevier
Lower Jurassic sedimentary successions in the Atlantic margin basins include several
organic-rich intervals, some with source rock potential; time-equivalent units are also …

Two-phased collapse of the shallow-water carbonate factory during the late Pliensbachian–Toarcian driven by changing climate and enhanced continental …

FN Krencker, A Fantasia, J Danisch, R Martindale… - Earth-Science …, 2020 - Elsevier
Abstract The end Pliensbachian–Toarcian is characterized by several carbon-cycle
perturbations and faunal turnovers (eg, ammonites and foraminifera), which are most likely …

Astronomical timescale for the early Toarcian (Early Jurassic) Posidonia Shale and global environmental changes

W Ruebsam, A Schmid-Röhl, M Al-Husseini - Palaeogeography …, 2023 - Elsevier
Abstract Lower Toarcian sediments (Early Jurassic, c. 183 Ma) record the Toarcian Oceanic
Anoxic Event (T-OAE), which represents a period of profound environmental changes. The …