Geology, Australian National University, Canberra, Australia INTRODUCTION A NUMBER of brecciated and massive...massive basalt-filled igneous pipes in eastern Australia have been found to contain abundant granulitic...mantle (Lovering, 1964). Very similar granulite and eclogite inclusions are also found in the diamondbearing...Yakutia, U.S.S.R. (Bobrievich & Sobolev, 1957), and South Africa (Williams, 1932) along with generally more...the Australian pipes to those of the Siberian and South African pipes would suggest that if these inclusions |