A5057574365- Geology and Paleoclimatology Research
- Geological and Geochemical Analysis
- Methane Hydrates and Related Phenomena
- Geophysics and Gravity Measurements
- Cryospheric studies and observations
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Marine and environmental studies
- Polar Research and Ecology
- Geomagnetism and Paleomagnetism Studies
- Evolution and Paleontology Studies
- Geological Modeling and Analysis
- Arctic and Antarctic ice dynamics
- Maritime and Coastal Archaeology
- Oceanographic and Atmospheric Processes
- Geological Formations and Processes Exploration
- Historical Geography and Cartography
- Literature, Language, and Rhetoric Studies
Landsvirkjun (Iceland)
2021
University of Iceland
2013-2018
Geocenter Denmark
2012
University of Copenhagen
2012
Sulfur concentrations have been measured in 28 melt inclusions (MIs) plagioclase, clinopyroxene, and olivine crystals extracted from tephra produced during the explosive eruption of Grímsvötn May 2011. The results are compared to sulfur groundmass glass order estimate mass brought surface eruption. Satellite measurements yield magnitude lower (~0.2 Tg) plume than estimated difference between MI glass. This “deficit” is readily explained by adhering grains but principally sulfide globules...
The 1991 Hekla eruption started on 17th of January with an intense 50-min-long explosive phase that transitioned into fire fountain activity lasting for 2 days. eruptive plume rose to maximum height in about 10 min and the total mass tephra deposited from opening was 8.6 × 109 kg (VEI 3 event). principal axis fall is NNE grain-size analysis reveals a systematic decrease away source. Majority sample sites show typically unimodal distributions, although few have bimodal distributions where...
Due to poor preservation and lack of proximal tephra thickness data, no comprehensive isopach map has existed for the layer from major eruption Katla volcano in 1918. We present such a obtained by combining existing data on 1918 soil profiles with newly acquired 590 km² Mýrdalsjökull ice cap which covers caldera its outer slopes. A 20–30 m surface vents is inferred photos taken 1919. The greatest thicknesses presently observed, 30–35 cm, occur where outcrops lowermost parts ablation areas...