The Foyers Sandstone, a constituent of the Old Red Sandstone of northern Scotland, located on the eastern flank of the Great Glen Fault, has yielded a multicomponent palaeomagnetic structure. The principal magnetization (called the B component), with in situ mean direction D, I = 185", +8"; ag5 = 2.7", post-dates the local 'mid'-Devonian (Acadian) tectonic event, but this direction corresponds well with characteristic directions displayed by Devonian and Lower Carboniferous rocks of Scotland. The most significant overprinted component, the A2 magnetization, with in situ mean direction D , I = 194", -27"; ag5 = 4. lo, has a more patchy occurrence than the B remanence, the strongest development of A2 being observed at sites that are situated close to the Great Glen Fault zone. The A2 direction is consistent with a Hercynian age. A third magnetization, the A1 component, of suggested Lower Tertiary age, has been found at one of the sites close to the fault zone. The A2 and B remanences support previously proposed declination discordances in corresponding magnetizations across the Great Glen Fault. It is concluded that the Foyers Sandstone developed its multicomponent magnetization through repeated tectonic events on the Great Glen Fault in Acadian, Hercynian and Alpine times respectively.

The Terra Nova project is the first subsea development on the Grand Banks area off the east coast of Canada. The area presents a unique set of challenges such as harsh environmental conditions, risk of damage from icebergs and little established infrastructure. To meet these challenges, an alliance approach was established, creating an ideal environment for an integrated team which produced extremely valuable results through optimization across the areas of FPSO, subsea and subsurface. Concurrent with Design Basis development, field development activities were commenced. This included determination of bottom hole location of the wells, seabed facilities including positions and types of manifolds/templates, flowline choice and protection of seabed facilities to minimize risk from iceberg scour.

No abstract