In collaboration with our industry partners

Funded by our industry partners and the province of Nova Scotia

Nova Scotia Margin Refraction

A wide-angle refraction dataset has recently been collected across the NE Nova Scotian margin using closely spaced ocean bottom seismometer stations. The new profile is spatially coincident with one of the existing NovaSPAN MCS profiles collected using a 9 km-long streamer (see http://www.iongeo.com/Data_Libraries/SPANS/NovaSPAN/). We will be analyzing the collected wide-angle data using a combination of travel-time and waveform tomography to produce high-resolution velocity models of sediment and crustal structure within the ocean-continent transition. Collection of additional along-strike wide-angle OBS profiles is being planned for summer 2010. Imaged structures will be compared with results from earlier SMART profiles collected during the MARIPROBE program to constrain the rifting geometry along the margin.

Orphan Basin Refraction

A dense ocean bottom seismometer profile is being planned for 2010 across the Orphan Basin from Flemish Cap to the NE Newfoundland margin along an existing MCS profile (see http://www.nr.gov.nl.ca/mines&en/oil/callforbids/sections1-5.pdf). We will be analyzing the collected wide-angle refraction data using a combination of travel-time and waveform tomography to produce high-resolution velocity models of sediment and crustal structure within a unique region of stretched continental crust to constrain details of the rifting geometry across the basin.