Sökning: "shallow arc storage systems"

Hittade 3 avhandlingar innehållade orden shallow arc storage systems.

  1. 1. Trans-crustal magma storage in contrasting tectonic settings

    Författare :Harri Geiger; Frances Deegan; Valentin R. Troll; Katharine Cashman; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; magma plumbing systems; thermobarometry; oxygen isotope analysis; shallow arc storage systems;

    Sammanfattning : Magmatic plumbing systems comprise magma chambers, sheet intrusions, and conduits which link the Earth’s deep interior with the Earth’s surface. As such, they are the structural framework of magma transport and storage that is governed by complex physical and chemical processes in magma reservoirs and through the interaction of magma bodies with surrounding crustal rocks over timescales from hours to millions of years. LÄS MER

  3. 2. Characterising volcanic magma plumbing systems : A tool to improve eruption forecasting at hazardous volcanoes

    Författare :David A. Budd; Valentin Troll; Tod Waight; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; magma plumbing; oxygen isotopes; thermobarometry; crustal assimilation; Katla; Merapi; Kelud; Toba; volcanic hazards; Geovetenskap med inriktning mot mineralogi; petrologi och tektonik; Earth Science with specialization in Mineral Chemistry; Petrology and Tectonics;

    Sammanfattning : This thesis attempts to develop our understanding of volcanic magma plumbing systems and the magmatic processes that operate within them, such as fractional crystallisation, crustal partial melting, assimilation, and magma mixing. I utilise petrology, rock and mineral geochemistry, and isotope systematics to seek to improve our ability to forecast the eruptive frequency and style of active volcanoes, an aspect often lacking in current volcano monitoring efforts. LÄS MER

  4. 3. Magma plumbing architecture in Indonesia and the North Atlantic Igneous Province

    Författare :Börje Dahrén; Valentin R Troll; Abigail K. Barker; Steffi Burchardt; Ben Ellis; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; magma plumbing; geothermobarometry; plagioclase; clinopyroxene; magma-crust interaction; hazard mitigation; Geovetenskap med inriktning mot mineralogi; petrologi och tektonik; Earth Science with specialization in Mineral Chemistry; Petrology and Tectonics;

    Sammanfattning : Magma plumbing systems represent the physical framework of magma transport and storage from the source region in the mantle, through the crust, until reaching the surface in a volcanic eruption. Characterising the different aspects of magma plumbing, in particular the distribution of magma storage zones throughout the crust, is of key importance to better understand the behaviour of individual volcanoes. LÄS MER