Crustal Structures of Grenville, Makkovik and Nain provinces along the Lithoprobe ECSOOT Transect (Labrador) Determined from Seismic Refraction Profiles

Abstract

This thesis concerns a seismic velocity analysis of wide-angle reflection and refraction data combined with the LITHOPROBE ECSOOT marine multi-channel seismic reflection profile along the southeastern Labrador coast. The seismic velocity models of the Archean southern Nain, and the Proterozoic Grenville and Makkovik provinces obtained in this thesis are starting points for understanding the complete picture of crustal structures along the southeastern Labrador coast. These preliminary seismic velocity structures are used to place additional constraints on tectonic processes in this region.