“…The Olary Block is separated from the contiguous Broken Hill Block by an alluvium-covered NNE-trending fault. In the past 5 to 10 years, there has been significant new research on the Olary Block, which was not well known compared to the Broken Hill Block (Berry et al, 1978;Clarke et al, 1986Clarke et al, , 1987Cook and Ashley, 1992;Flint and Parker, 1993;Cook et al, 1994;Ashley et al, 1994Ashley et al, , 1995Bierlein et al, 1995Bierlein et al, , 1996aBierlein et al, , 1996b. This contribution interprets the post-high-grade metamorphic history of the Olary Block.…”