Stratigraphic relationships of Carboniferous volcanogenic successions in the Clifton–Carroll block and Werrie Syncline, northern Tamworth Belt, southern New England Orogen

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Late Carboniferous volcanogenic successions in the Clifton–Carroll block, west of the Werrie Syncline, represent the southernmost extremity of the Willuri Formation, a unit which extends northwards into the Rocky Creek region in northern New South Wales. Two ignimbrites, the Iventure and Tagggarts Mountain Ignimbrite Members, previously named in the Currabubula Formation, are present in the Willuri Formation in the Clifton–Carroll block. The Taggarts Mountain Member extends farther northwards through both Gunnan and Tulcumba Ridges. The western limb of the Werrie Syncline, which is separated from the Clifton–Carroll block by the Kelvin Thrust, contains an Upper Devonian to Upper Carboniferous succession. The largely non-marine, Lower Carboniferous Merlewood Formation is typified by andesite flows, two of which are major, within an area between the Donnellys Gap Fault in the north and Piallaway in the south. The Iventure and Taggarts Mountain Ignimbrite Members in the overlying Upper Carboniferous Currabubula Formation provide a correlation with the Willuri Formation in the Clifton–Carroll block to the west, and the more widespread Taggarts Mountain Ignimbrite Member with the Willuri Formation in Gunnan and Tulcumba Ridges to the north.