Sökning: "rootless shield"

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  1. 1. Mapping drainage of the rootless shield volcano at Dimmuborgir, northern Iceland

    Kandidat-uppsats, Stockholms universitet/Institutionen för geologiska vetenskaper

    Författare :Jacob Gustafsson; [2016]
    Nyckelord :Dimmuborgir; rootless shield; drainage; striations; dip angle; dip direction; Digital Terrain Model; lava channels; lava pillars; collapse structures;

    Sammanfattning : Dimmuborgir is thought to be a former rootless shield volcano, which was fed with lava from a nearby crater row, 2170 ± 38 calendar years before present. In this study, the orientation of striations on the sides of lava channels, collapse structures and lava pillars were measured to find out how the enigmatic ~2 km by 2 km volcanic structure at Dimmuborgir was drained. LÄS MER