The early Toarcian Oceanic Anoxic Event (Jenkyns Event) in the Alpine-Mediterranean Tethys, north African margin, and north European epicontinental seaway

G Gambacorta, HJ Brumsack, HC Jenkyns… - Earth-Science Reviews, 2024 - Elsevier
Abstract The early Toarcian Oceanic Anoxic Event (Jenkyns Event) was associated with
major world-wide climatic changes with profound effects on the global carbon cycle. This …

[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 …

Orbital pacing and secular evolution of the Early Jurassic carbon cycle

MS Storm, SP Hesselbo, HC Jenkyns… - Proceedings of the …, 2020 - National Acad Sciences
Global perturbations to the Early Jurassic environment (∼ 201 to∼ 174 Ma), notably during
the Triassic–Jurassic transition and Toarcian Oceanic Anoxic Event, are well studied and …

Shallow marine carbon and oxygen isotope and elemental records indicate icehouse‐greenhouse cycles during the Early Jurassic

C Korte, SP Hesselbo - Paleoceanography, 2011 - Wiley Online Library
For much of the Mesozoic record there has been an inconclusive debate on the possible
global significance of isotopic proxies for environmental change and of sequence …

Iodine to calcium ratios in marine carbonate as a paleo-redox proxy during oceanic anoxic events

Z Lu, HC Jenkyns, REM Rickaby - Geology, 2010 - pubs.geoscienceworld.org
Periods of globally distributed extreme oxygen depletion, so-called oceanic anoxic events
(OAEs), have been recognized in the Mesozoic geological record and appear to be …

Astronomical constraints on the duration of the Early Jurassic Pliensbachian Stage and global climatic fluctuations

M Ruhl, SP Hesselbo, L Hinnov, HC Jenkyns… - Earth and Planetary …, 2016 - Elsevier
Abstract The Early Jurassic was marked by multiple periods of major global climatic and
palaeoceanographic change, biotic turnover and perturbed global geochemical cycles …

A carbon-isotope perturbation at the Pliensbachian–Toarcian boundary: evidence from the Lias Group, NE England

K Littler, SP Hesselbo, HC Jenkyns - Geological Magazine, 2010 - cambridge.org
A perturbation in the carbon-isotope record at the time of the Pliensbachian–Toarcian
boundary (~ 184 Ma) in the Early Jurassic is reported, based on new data from Yorkshire …

A global perturbation to the sulfur cycle during the Toarcian Oceanic Anoxic Event

BC Gill, TW Lyons, HC Jenkyns - Earth and Planetary Science Letters, 2011 - Elsevier
The Mesozoic Era was punctuated by intervals of widespread anoxia within the ocean,
termed oceanic anoxic events or OAEs. The chemostratigraphy of these intervals also …

[HTML][HTML] Evolution of the Toarcian (Early Jurassic) carbon-cycle and global climatic controls on local sedimentary processes (Cardigan Bay Basin, UK)

W Xu, M Ruhl, HC Jenkyns, MJ Leng… - Earth and Planetary …, 2018 - Elsevier
Abstract The late Early Jurassic Toarcian Stage represents the warmest interval of the
Jurassic Period, with an abrupt rise in global temperatures of up to∼ 7° C in mid-latitudes at …

Palaeoclimatic oscillations in the Pliensbachian (early Jurassic) of the Asturian Basin (northern Spain)

JJ Gómez, MJ Comas-Rengifo, A Goy - Climate of the Past, 2016 - cp.copernicus.org
One of the main controversial themes in palaeoclimatology involves elucidating whether
climate during the Jurassic was warmer than the present day and if it was the same over …