ANTARCTIC IMPACT
THE BOOK’S STARTING REFERENCE

Marie Tharp’s
ocean floor.

Begin with the ridges, trenches and basins that sparked the authors’ inquiry. Rotate the 1977 map, then choose the book’s model or a research view.

Switch to the guided journey Original map & depth profiles →
Read Chapter One’s Ninety East Ridge passage →
The Heezen–Tharp ocean-floor map with modern NOAA polar fill.
Play impact → Great Bend

Explore the ocean-floor map, then continue into the book’s journey.

Enter the 3D journey
World Ocean Floor, 1977 · Bruce Heezen and Marie Tharp · painted by Heinrich Berann. Geographic registration is approximate. Polar fill: modern NOAA ETOPO1.
CHOOSE A VIEW

Continue from the map.

Earth model Guided book journey Book impact animation Pangea to today Published PALEOMAP atlas Moving Earth study Full Tharp globe & numerical relief