Columbia subject headings:
Geology--North Atlantic Region.
Stratigraphic correlation--North Atlantic Region.
Harvard subject headings:
Geology--North Atlantic Ocean Region.
Geology--North Atlantic Region.
Stratigraphic correlation--North Atlantic Ocean Region.
Stratigraphic correlation--North Atlantic Region.
Princeton subject headings:
Geology--North Atlantic Ocean Region.
Stratigraphic correlation--North Atlantic Ocean Region.