Mathematics – Logic
Scientific paper
Aug 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000mpse.conf...71h&link_type=abstract
International Conference on Mars Polar Science and Exploration, p. 71
Mathematics
Logic
Geochronology, Glaciers, Geology, Lithology, Stratigraphy, Topography, Lava, Sediments, Volcanology
Scientific paper
The Skaftafell region, Southeast Iceland, boarders Vatnajokull glacier on the south side with vast sandur plains on the lowland front formed by joekulhlaups. A detailed map of Skaftafell's bedrock geology is presented that covers Skaftafell, Skaftafellsheioi, Hafrafell, and Svinafell, mountain cliffs that are separated by outlet glaciers and valleys. The Skaftafell region of Southeast Iceland offers highly variable lithology due to volcanism extending over numerous glacial and interglacial periods during the last five Ma. Over 90 stratigraphic sections were studied and on basis of lithology, paleomagnetic signature (over 1000 cores from 248 units), and age dating, the stratigraphic history of the area was determined with emphasis on glacial-interglacial transitions and landscape evolution. Skaftafell region showing location of investigated stratigraphic profiles. Width of image approximately 25 km. Lavas and sediments were deposited during interglacial periods. During glacials, subglacial volcanism produced a succession of lithologic units ranging up dip from pillow lavas and lobes to pillow block breccia to isolated pillows to hyaloclastite breccia to primary hyaloclastite to reworked hyaloclastite (on top and flanks). The stratigraphic succession is compiled into two master sections for the Skaftafellsfjoll (2.8 km) and Hafrafell (1.9 km). The Skaftafellsfjoll section is dividable into 25 stratigraphic formations with 12 interglacial and 11 glacial periods. The Hafrafell was divided into 36 formations with 11 interalacial and 10 glacial periods. Correlation of the two master sections with K-Ar age dating, paleomagnetic signature and lithologic characteristics demonstrates a minimum of 16 glacial stages for this region during the last five M yr.A clear evolution in landscape is observed from a low relief lava terrain toward a land deeply incised with valleys by glaciers (negative landforms) and subalacial volcanically formed ridges (positive landforms). Thus, local relief changed from approximately 15 m to over 2000 m in the last five M yr.
No associations
LandOfFree
Geological Map of the Skaftafell Region, Se-Iceland: Glacial-Interglacial History 0-5 MA does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Geological Map of the Skaftafell Region, Se-Iceland: Glacial-Interglacial History 0-5 MA, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geological Map of the Skaftafell Region, Se-Iceland: Glacial-Interglacial History 0-5 MA will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-741789