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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
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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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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Chapter
Geophysics and Remote Sensing
Igneous sheet intrusions such as sills, dikes, and laccoliths are abundant in volcanic basins. Mafic intrusions are characterized by high in the range from 5.0 to 7.0 km/s. Velocity aureoles with a thickness ...
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Article
A petrologic, geochemical and Sr–Nd isotopic study on contact metamorphism and degassing of Devonian evaporites in the Norilsk aureoles, Siberia
Devonian evaporites and associated sedimentary rocks in the Norilsk region were contact metamorphosed during emplacement of mafic sills that form part of the end-Permian (~252 Ma) Siberian Traps. We present mi...
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Article
Seep carbonate formation controlled by hydrothermal vent complexes: a case study from the Vøring Basin, the Norwegian Sea
Several hundred hydrothermal vent complexes were formed in the Vøring Basin as a consequence of magmatic sill emplacement in the late Palaeocene. The 6607/12-1 exploration well was drilled through a 220-m-thic...
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Article
Deep crustal structure and rheology of the Gascoyne volcanic margin, western Australia
Interpretation of deep seismic reflection data across the Gascoyne Margin reveals six distinct seismic facies units related to the tectono-magmatic breakup history. On the outer Exmouth Plateau four large scal...
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Chapter
Volcanic Margin Concepts
Volcanic margins are part of a tectono-magmatic system in which the margin fonnation depends on lithospheric and asthenospheric properties before, during and after continental breakup. Whether a volcanic margi...