Essays about: "Vulkanism"
Showing result 1 - 5 of 13 essays containing the word Vulkanism.
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1. Magma Mixing and ReplenishmentBeneath Laurens Peninsula, Heard Island
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : Heard Island is a remote Australian territory which lies in the South-middle sector of the Indian Ocean.The island lies in the central province of the Kerguelen Plateau. On the north-western face of the islandlies the Laurens Peninsula, where modern volcanism has been periodic since approximately 10 ka, butno eruption has been recorded. READ MORE
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2. Record of the end-Triassic mass extinction in shallow marine carbonates: the Lorüns section (Austria)
University essay from Lunds universitet/Geologiska institutionenAbstract : The end-Triassic mass extinction (ETE) was one of the five big mass extinctions of the Phanerozoic and occurred ~201 Ma ago. Research agrees that the main triggering factor for the ETE was the eruptions of the Central Atlantic Magmatic Volcanic Province (CAMP), linked to the break-up of the supercontinent Pangaea. READ MORE
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3. Mercury in Fossil Leaves as a Proxy for Tracking Large Igneous Province Volcanism
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : During some mass extinctions, usually minor, world oceans also underwent anoxic to euxinic conditions, events called Oceanic anoxic events (OAEs). Such an event unfolded during the Toarcian (∼183 Ma), called the T-OAE which is suggested to have been caused by Karoo-Ferrar Large Igneous Province (LIP) volcanism. READ MORE
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4. Assessing the biodiversity crisis within the Triassic-Jurassic boundary interval using redox sensitive trace metals and stable carbon isotope geochemistry
University essay from Lunds universitet/Geologiska institutionenAbstract : Around the Triassic-Jurassic-Boundary time interval, a severe mass extinction event occurred, which has been associated to volcanism of the Central Atlantic Magmatic Province (CAMP). Significant amounts of greenhouse gases as carbon dioxide (CO2) or methane (CH4) and other volatiles are suggested to have been released into the atmosphere, leading to global warming with subsequent impact on the biosphere. READ MORE
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5. Implications of Magma and Bedrock Interaction, a Study of Xenopumice from La Palma, the Canary Islands
University essay from Uppsala universitet/Institutionen för geovetenskaperAbstract : This thesis focuses on frothy, felsic xenoliths called ‘xenopumice’, that were retrieved from La Palma during a 10–day field campaign in December 2018. There are only few descriptions of these frothty xenoliths, and a consensus on their origin has not yet been achieved. READ MORE