Perth Abyssal Plain - Suggested Placement 4 (Markl, 1974), ID: 2-7-5

Time of cessation: Ca. 77 Ma (Markl, 1974)

Comments:

The proposed extinct ridge location does not show a characteristic morphology or gravity signal in profile and is a tenuous, possible former spreading center location.

Reference:

Markl, R. G., 1974, Evidence for the breakup of eastern Gondwanaland by the early Cretaceous, Nature, v. 251, p. 196–200.

Maps showing the location of extinct ridge segments

Depth profiles across the axes of extinct ridge segments

Gravity profiles across the axes of extinct ridge segments