The Officer Basin probably formed when the Gawler Craton collided westerly with the Yilgarn Craton during 1300-1000 Ma; the collision-faulted belt of the Fraser-Musgrave Orogen might form the basement of the Munyarai Trough in the eastern part of the basin. The Ungoolya Hinge separates the trough from the Murnaroo Platform, which is located on the stable Gawler Craton. The Officer Basin sediments are thin on the platform and thicken towards the trough, in which six Neoproterozoic tectono-stratigraphic intervals (or megasequences, cf. SQ) can be recognised. Basin deposition started with an initial rift or sag during the Willouran (SQ 1, ~850-800 Ma), creating graben or half-graben structures along the Ungoolya Hinge zone and the margin of the Gawler Craton. The Torrensian (SQ 2, ~800-750 Ma) rift was related to the subsidence of the Munyarai Trough and the graben or half-graben structures in the depocentre may accommodate thicker organic-rich salt and sabkha deposits (Alinya Formation). A regional unconformity is related to the glaciogenic upland in the Munyarai Trough and Murnaroo Platform, while the Neoproterozoic glaciogenic deposits (SQ 3) are limited to the eastern Marla region. This was followed by two major transgressions during the Ediacarian (sensu Cloud and Glaessner; 1982; ~630±20 - 545 Ma) leading to three sequences which can be recognised from core and seismic interpretation. The lower sequence (SQ 4) on the Murnaroo Platform started with a basal, lowstand conglomerate of the lower Tarlina Sandstone, then transgressively into the Meramangye Formation followed by a highstand sandstone of the Murnaroo Formation during a major sea-level fall. SQ 5 contains siliciclastics and carbonate up to 4000 m thick in the Munyarai Trough and which were cut by a canyon sequence (SQ 6). Uplift of the mobile Musgrave Block during the Paterson-Petermann Ranges Orogen (~750-530 Ma), particularly during the latest Petermann Ranges Orogeny (570-530 Ma), produced abundant sediment supply to be deposited in the latest Neoproterozoic foreland basins. Uplift and subsequent thrusting during the Alice Springs Orogeny might have driven the salt deposits of the Alinya Formation from the Munyarai Trough towards the southern platform, forming diapirs and salt-related structures in the Ungoolya Hinge zone. This salt movement may also have produced petroleum from the rich organic matter in the Alinya Formation, and its porous underlying aeolian to fluvial Pindyin Sandstone (porosity 3.8-22.5%) and overlying alluvial, fluvial to deltaic Tarlina Sandstone (porosity 9.0-19.6%) would be prospective reservoirs.