Crustal architecture and evolution of the conjugate volcanic margins off mid-Norway and East Greenland in a total rift context

Integrated studies of conjugate rifted continental margins are essential for a better understanding of the fundamental processes responsible for the breakup and separation of lithospheric plates. We propose to study the conjugate volcanic margins off mid-Norway and East Greenland to establish the crustal architecture that provides key constraints for the understanding of the processes and the temporal sequence of events involved in volcanic margin formation and evolution. By using the existing databases and collect new 2D regional deep seismic data off mid-Norway and East Greenland in addition to a detailed 3D survey on the East Greenland margin we will focus on: (1) Crustal and uppermost mantle architecture (crustal thickness variations, rift polarities, distribution of extrusives, intrusives, magmatic underplating), (2) tectonic and magmatic interplays and styles prior to, during and subsequent to breakup, (3) regional extension and magmatism, including estimates of volume and rates, (4) alongstrike segmentation, magmatic and tectonic (a)symmetry, structural inheritance, and (5) interplay of sedimentation, magmatism and vertical motion.

Other information

A Workshop on EUROMARGINS Research in NE Atlantic took place in Oslo, Norway, 15-17 April 2004, and was organised by Professor Jan Inge Faleide, Department of Geosciences, University of Oslo. The aim of this workshop was to gather scientists from the three EUROMARGINS projects focusing on the structure and evolution of the rifted volcanic margins in the NE Atlantic. In addition some key people (from both academia and industry) working with similar/relevant research topics onshore/offshore East Greenland and mid-Norway. The organisers brought together modelers that presented their quantitative approach (what processes are modeled and what data input is needed) and geologists/geophysicists presenting their best up-to-date constraints based on integrated/interdisciplinary studies from both offshore and onshore areas of the conjugate Norwegian-Greenland margins.

 

 

Project Leader:

Jan IngeFaleideE-Mail
University of OsloDepartment of GeosciencesBlindernNorway

Principal Investigators:

LaurentGeoffroyE-Mail
Université du MaineFaculté des Sciences et TechniquesLaboratoire GRMP (Geodynamique des Rifts et des Marges Passives)Le MansFrance
WilfriedJokatE-Mail
Alfred-Wegener Institut for Polar and Marine ResearchBremerhavenGermany