Triassic Horizon Grids, Isochron Grids, and Fault Maps, Central North West Shelf
September 2019 update
New higher resolution versions of J10.0 and TR10.0
![](https://www.ga.gov.au/__data/assets/image/0004/88726/North-West-Shelf.png)
Figure 1. Location map of the central North West Shelf showing basins, sub-basins, 2D seismic surveys (grey lines), 3D surveys (green polygons), and selected wells. ah=Anhalt 1, bc=Barcoo 1, bt=Bedout 1, bd=Brigadier 1, br=Bruce 1, cy=Cossigny 1, dg=De Grey 1, de=Delambre 1, gd=Galahad 1, hs=Hannover South 1, hn=Huntsman 1, kn=Keraudren 1, lg=Lagrange 1, nr=North Rankin 5, op=ODP 760, px=Phoenix 1 &2, ps=Phoenix South 1–3, pr=Poissionner 1, rc=Roc 1 & 2, sr=Skippy Rock 1, sd=Steel Dragon 1. Not all 2D and 3D surveys shown were interpreted.
![](https://www.ga.gov.au/__data/assets/image/0005/88727/Horizon-grids-v2.png)
Figure 2. Horizon grids, isochron grids, and faults included in this data package. The display settings (e.g hill shading, colour ramp, isochron contours, legend) were generated in ArcGIS. Sub-basin boundaries, sourced from Geoscience Australia (2018), are shown for geographical context. Basin and sub-basin names are indicated on Figure 1.