Aegir Ridge Geology/ Geophysics and Hotspot interaction (ARGGH)

Aegir Ridge Geology/Geophysics and Hotspot interaction (ARGGH) is a multidisciplinary study of the causes of the high-volume magmatism in the northeast Atlantic, affecting the area from continental breakup to present Iceland.

About the project

The primary objective is to better understand hotspot-rift interaction, chemical development of the mantle, and the origin and nature of plume-like mantle upwellings. This will be done through analysis of geochemical and seismic data, combined with geodynamic modeling of the mantle flow pattern. The study is based on igneous rocks dredged from the seafloor near the now-extinct seafloor spreading Aegir Ridge in the Norwegian Sea, and seismic data from Ocean Bottom Seismometer (OBS) data alongside the ridge. Analysis of the OBS data will be done in Oslo.

The project partners are the Universities of Bergen (project leader) and Oslo, GEOMAR in Kiel, and the Universities of San Diego and Hawaii.

The project is funded by The Norwegian Research Council under the Frinat Program.

Published Feb. 14, 2011 2:08 PM - Last modified Mar. 15, 2011 1:38 PM