Publication Name: The Sedimentary Basins of WA
Authors: M. Keep, M. Clough & L. Langhi
Publication Volume: 3
Date Published: December 2002
Number of Pages: 30
Reference Type: Book Section
Abstract:
Neogene deformation styles in the Timor Sea vary from flexure-dominated in the NE to transtension-dominatedtowards the SW. Neogene fanlts generally preserve overall normal displacement despite sometimes complex
reactivation histories. Controls on fanlt style include proximity to the Timor Trough, and position relative to basement highs. Basement fanlts often control the location of Neogene fanlts, with both hard- and soft-links preserved throughout the area. Cretaceous and Upper Jurassic shales and claystones act as ductile horizons and cause detachment of basement from the Neogene in some areas. Three main pnlses of deformation at the Early Miocene, Late Miocene and late Early Pliocene correspond to regional tectonic events in the region. The Late Miocene event in particnlar seems widespread, with synchronous deformation through the Indo-Australian plate.