Report on Idirriki Range, Mereenie Bluff and Gosses Bluff

Abstract

The strata at Gosse's Bluff are intensely fractured and deformed, and the beds away from the dome on the flanks, at least on the north side, are also intensely fractured and deformed. The apparent thinning of the Stokes and Mereenie formations across Gosse's Bluff and the upturned position of the Pertnjara sandstone indicate that the structure was growing as early as Stokes time and continued to grow through Mereenie and into Pertnjara times. The intra-formational breccia within the Mereenie may have resulted from structural growth.