Sökning: "magma storage model"

Hittade 3 uppsatser innehållade orden magma storage model.

1. 1. Origin of Silicic Magmatism at the Katla Volcano, South Iceland

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Caroline Svanholm; [2021]
   Nyckelord :Katla volcano; Iceland; high-silica rocks; oxygen isotopes; AFC processes; Vulkanen Katla; Island; kiselrika bergarter; syreisotoper; AFC-processer;

   Sammanfattning : Katla volcano, South Iceland, is a bimodal volcanic system hosting an unusual high number of silicic rocks within a basaltic rift setting. The petrogenesis of silica-rich rocks at Katla is controversial and two end-member hypotheses have been suggested. LÄS MER

3. 2. Crystallization and Emplacement of the Monte Amarelo Dikes: Magma Storage Assessment on Fogo, Cape Verde Islands

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Olle Risby; [2017]
   Nyckelord :Fogo; magma storage model; thermobarometry; clinopyroxene; intrusion landslide.; Fogo; magmalagringsdjup; termobarometri; klinopyroxen; intrusion; skred;

   Sammanfattning : The volcanic island of Fogo belongs to the Cape Verde archipelago, a two-tiered chain of islands situated 500 km west of the African coast. Fogo is regarded as one of the most active volcanoes in the world with 10 eruptions during the last 250 years. The former shield volcano Monte Amarelo reached 3500 m.a. LÄS MER

4. 3. Probing the Toba super-eruption: Insights from oxygen isotope geochemistry and geobarometry

   Master-uppsats, Berggrundsgeologi

   Författare :David Budd; [2011]
   Nyckelord :super-eruption; oxygen isotopes; geobarometry; Toba; magmatic plumbing; caldera;

   Sammanfattning : The Toba caldera located in north Sumatra, Indonesia, is the source of the largest volcanic eruption in the Quaternary (Rose & Chesner 1987). Its enormous volume of 2800 km3 has been a matter of debate for decades and it is still unclear where and how the Toba magma was assembled. LÄS MER