Publication Name: Eastern Australian Basins Symposium III (EABS 2008)
Authors: A. Tripathi and P.J.J. Kamp
Date Published: September 2008
Number of Pages: 4
Abstract:
Structures associated with the wedge of basement overthrust into the Taranaki Basin along the Taranaki Fault are regarded as hydrocarbon plays and have been tested by drilling through the tip of the overthrust. The timing of initiation of reverse displacement on the Taranaki Fault is difficult to interpret from available seismic reflection data because the evidence has been masked by later movements. The regional geological evidence from the basin suggests that the fault evolved from normal to reverse movement during the mid-Oligocene, as interpreted from the formation of a foredeep parallel to, and west of, the Taranaki Fault. Other evidence include a marked increase in its paleo-water depth as indicated by foraminiferal assemblages of Late Oligocene age.