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Rapid Acidification of the Ocean During the Paleocene-Eocene Thermal Maximum
Geochemical data from five new South Atlantic deep-sea sections indicate that a large mass of carbon dissolved in the ocean at the Paleocene-Eocene boundary and that permanent sequestration of this carbon occurred through silicate weathering feedback.
Astronomical pacing of late Palaeocene to early Eocene global warming events
A distinct carbonate-poor red clay layer in deep-sea cores from Walvis ridge is reported, which is term the Elmo horizon, which has similar geochemical and biotic characteristics as the Palaeocene–Eocene thermal maximum, but of smaller magnitude, suggesting that it represents a second global thermal maximum.
Subtropical Arctic Ocean temperatures during the Palaeocene/Eocene thermal maximum
It is shown that sea surface temperatures near the North Pole increased from ∼18 °C to over 23°C during this event, which suggests that higher-than-modern greenhouse gas concentrations must have operated in conjunction with other feedback mechanisms—perhaps polar stratospheric clouds or hurricane-induced ocean mixing—to amplify early Palaeogene polar temperatures.
The Geological Record of Ocean Acidification
The geological record contains long-term evidence for a variety of global environmental perturbations, including ocean acidification plus their associated biotic responses, over the past ~300 million years of Earth’s history.
Timing and nature of the deepening of the Tasmanian Gateway
 Tectonic changes that produced a deep Tasmanian Gateway between Australia and Antarctica are widely invoked as the major mechanism for Antarctic cryosphere growth and Antarctic Circumpolar…
Early Palaeogene temperature evolution of the southwest Pacific Ocean
- P. Bijl, Stefan Schouten, A. Sluijs, G. Reichart, J. Zachos, H. Brinkhuis
- Environmental Science, GeographyNature
- 8 October 2009
This work presents a uniquely continuous and chronostratigraphically well-calibrated TEX86 record of sea surface temperature (SST) from an ocean sediment core in the East Tasman Plateau, and shows that southwest Pacific SSTs rose above present-day tropical values and had gradually decreased to about 21 °C by the early Late Eocene age.
Warm arctic continents during the Palaeocene–Eocene thermal maximum
Arctic hydrology during global warming at the Palaeocene/Eocene thermal maximum
This corrects the article to show that the method used to derive the H2O2 “spatially aggregating force” is based on a two-step process, not a single step, like in the previous version of this paper.
Extreme warming of mid-latitude coastal ocean during the Paleocene-Eocene Thermal Maximum: Inferences from TEX86 and isotope data
Changes in sea surface temperature (SST) during the Paleocene-Eocene Thermal Max- imum (PETM) have been estimated primarily from oxygen isotope and Mg/Ca records generated from deep-sea cores. Here…
North American continental margin records of the Paleocene‐Eocene thermal maximum: Implications for global carbon and hydrological cycling
The impacts of the Paleocene-Eocene thermal maximum (PETM) (?55 Ma), one of the most rapid and extreme warming events in Earth history, are well characterized in open marine and terrestrial…