Latest Paleocene c.55Ma

Latest Paleocene map

Post-rift passive margin, quiescent tectonics, New Zealand drifting northwards from Antarctica. Regional foundering of sub-continent, subdued landscape, marine transgression of wide shelf areas. Deposition of potential petroleum reservoir and source rocks including marine black shale (hatched areas). Possible seaway between South Westland and Great South Basin.

The present-day 2000 m isobath, which nominally marks the periphery of the New Zealand sub-continent, is used for reference (boundary between dark blue and mid blue). Bold line depicts paleo-coastline.

Colour coding: white = terrestrial non-deposition; green = terrestrial deposition; yellow = marginal marine sand-dominated facies; pale blue-grey = shelf; mid-blue = slope or submarine rise; dark blue = deep ocean. Faults, and seafloor spreading centres shown in red. Pink circles = active volcanism.

Basins depicted include: Taranaki (TB), East Coast (ECB), Canterbury (CB), and Great South (GSB).

To view individual maps, click below:

Download animation of all maps deforming in sequence over 65 million years.