Resolution:
good lateral resolution for continental US, Mexico, and Gulf of Mexico.
limited depth resolution
Most prominent feature is the fast/slow contrast between eastern and western continental US.
Smaller features:
Yellowstone-Snake River Plain.
sharp changes in structure (east-west strike) at Mendocino and Rivera triple junctions.
fast structure beneath Yucatan Peninsula.
Trans-Mexican Volcanic belt (200-300 km depth).
possible slow feature, SE US coast (200-300 km depth).