MGPalaeo are excited to announce two new Triassic multi-client studies; a Greater T. playfordii study (Middle-Early Triassic), and a Bonaparte Basin Triassic Breakdown. Both studies expand upon the Dorado structural-stratigraphic play trend identified in the Bedout Sub-basin. For more information on these studies, please read on:

Greater T. playfordii Study (Middle-Early Triassic)

MGPalaeo are undertaking a new multi-client study investigating the palynological assemblages within the Triplexisporites playfordii Zone across the greater North West Shelf. The emergence of the Dorado structural-stratigraphic play trend in the Bedout Sub-basin highlights the importance of the Middle–Early Triassic T. playfordii Zone within which the reservoir section resides. High-resolution sub-division of the T. playfordii Zone within the Bedout Sub-basin has been demonstrated by MGPalaeo through detailed reanalysis of existing palynological material, enabling the identification of 30 subzones through this key interval. [For more information on the original study, please click here.]

The new Greater T. playfordii Study aims to expand the sub-zonal resolution to sections outside of the Bedout Sub-basin, by reanalysing Triassic sections from 12 wells across the Carnarvon and Bonaparte basins (Figure 1). The results will allow for greater confidence in recognition of temporal equivalent sections to those in the Bedout Sub-basin.

Website link: Greater T. playfordii Study


MGPalaeo Greater T playfordii Study
Figure 1: Wells in black are part of the Greater T. playfordii study. Wells in blue are those from the original Bedout Multi-Client study.

Bonaparte Basin Triassic Breakdown

There has been significant industry focus on the Late Triassic in the Northern Carnarvon Basin (Brigadier and Mungaroo formations) for several decades, along with more recent interest in Middle Triassic plays in the Roebuck Basin (Phoenix, Roc, and Dorado discoveries).  This has led to the development of high resolution biostratigraphic schemes for the Late and Middle Triassic in these basins, however, our palynological knowledge has not kept apace at the other end of the North West Shelf.  Following renewed recent interest in the Northern Bonaparte Basin, we will undertake a targeted review of the Triassic palynology of that basin.  

A key focus will be on the thick S. speciosusS. quadrifidus, and T. playfordii zonal intervals present in key wells (Figure 2). There are notable discrepancies between the MGPalaeo Triassic zonations developed in the Northern Carnarvon Basin (Morgan, Hooker, & Ingram, 2012) and the Robin Helby Bonaparte Basin zonal schemes. This study should result in a clearer understanding of how these different schemes are best aligned, refining correlations on a regional scale.

The Bonaparte Basin Triassic Breakdown Study will also investigate if any of the M. crenulatus and S. speciosus zonal subdivisions, widely utilised in Mungaroo Delta exploration activities, can be applied to the Bonaparte Basin. If not, the aim will be to develop a consistent subdivision for these Carnian–Norian successions and to better recognise and define any significant stratigraphic breaks present in this interval. 

Website link: Bonaparte Basin Triassic Breakdown


MGPalaeo Bonaparte Basin Triassic Breakdown
Figure 2: Wells selected for the Bonaparte Basin Triassic Breakdown.

For more information on the scope or deliverables of either study, or details on the early commitment prices, please get in touch with MGPalaeo by emailing us at [email protected]