Figure 7. Line drawing of seismic reflection profile crossing the extinct spreading center in the Labrador Sea (Srivastava and Keen, 1995). This crust is interpreted to have formed at 3.5 mm/yr half rate. The structures within this crust may be similar to those seen in the ocean/continent transition of the Iberia Abyssal Plain. F is the extinct spreading center. R1 and R2 are sedimentary reflectors. N, S, X, and Y are intracrustal or upper mantle reflectors. M is a possible Moho reflector. Locations A-E are tilted fault-bounded blocks capped with prefaulting layered material originally deposited as flat-lying sequences.

Figure 7. Line drawing of seismic reflection profile crossing the extinct spreading center in the Labrador Sea (Srivastava and Keen, 1995). This crust is interpreted to have formed at 3.5 mm/yr half rate. The structures within this crust may be similar to those seen in the ocean/continent transition of the Iberia Abyssal Plain. F is the extinct spreading center. R₁ and R₂ are sedimentary reflectors. N, S, X, and Y are intracrustal or upper mantle reflectors. M is a possible Moho reflector. Locations A-E are tilted fault-bounded blocks capped with prefaulting layered material originally deposited as flat-lying sequences.