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Article
Open AccessShallow-water hydrothermal venting linked to the Palaeocene–Eocene Thermal Maximum
The Palaeocene–Eocene Thermal Maximum (PETM) was a global warming event of 5–6 °C around 56 million years ago caused by input of carbon into the ocean and atmosphere. Hydrothermal venting of greenhouse gases p...
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Article
Open AccessMercury evidence for combustion of organic-rich sediments during the end-Triassic crisis
The sources of isotopically light carbon released during the end-Triassic mass extinction remain in debate. Here, we use mercury (Hg) concentrations and isotopes from a pelagic Triassic–Jurassic boundary secti...
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Article
Open AccessAssessing the importance of thermogenic degassing from the Karoo Large Igneous Province (LIP) in driving Toarcian carbon cycle perturbations
The emplacement of the Karoo Large Igneous Province (LIP) occurred synchronously with the Toarcian crisis (ca. 183 Ma), which is characterized by major carbon cycle perturbations. A marked increase in the atmo...
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Article
A nutrient control on marine anoxia during the end-Permian mass extinction
Oxygen deprivation and hydrogen sulfide toxicity are considered potent kill mechanisms during the mass extinction just before the Permian–Triassic boundary (~251.9 million years ago). However, the mechanism th...
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Article
Open AccessLarge-scale sill emplacement in Brazil as a trigger for the end-Triassic crisis
The end-Triassic is characterized by one of the largest mass extinctions in the Phanerozoic, coinciding with major carbon cycle perturbations and global warming. It has been suggested that the environmental cr...
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Chapter
Erratum to: Sub-volcanic Intrusions in the Karoo Basin, South Africa
The chapter was inadvertently published without updating Table 1. The erratum chapter has been updated with the change.
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Chapter
Sub-volcanic Intrusions in the Karoo Basin , South Africa
The Karoo Basin in South Africa contains the world’s best exposed sub-volcanic part of a . Dolerite sills and dikes crop out across the 630,000 km2 large basin, from base to top of the stratigraphy. We presen...
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Chapter
Sub-Volcanic Intrusions and the Link to Global Climatic and Environmental Changes
Most of the (LIPs) formed during the last 260 million years are associated with , , or extinctions in marine and terrestrial environments. Current hypotheses involve (1) degassing of carbon from either oce...
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Article
Formation of Si-Al-Mg-Ca-rich zoned magnetite in an end-Permian phreatomagmatic pipe in the Tunguska Basin, East Siberia
Magma-sediment interactions in the evaporite-rich Tunguska Basin resulted in the formation of numerous phreatomagmatic pipes during emplacement of the Siberian Traps. The pipes contain magnetite-apatite deposi...
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Article
Open AccessConstraining shifts in North Atlantic plate motions during the Palaeocene by U-Pb dating of Svalbard tephra layers
Radioisotopic dating of volcanic minerals is a powerful method for establishing absolute time constraints in sedimentary basins, which improves our understanding of the chronostratigraphy and evolution of basi...
