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) NATURALISTE

EPOCH SEQUENCES TECTONIC EVENTS (Ma) AGE (Ma BP PLATEAUStratigraphy from DSDP wells 0 0 PIACENZIAN Foram & Nannofossil MESSINIAN Ooze 10 L TORTONIAN 10 M BURDIGALIAN 20 E 20 AQUITANIAN L Eo - Q 30 E Start of fast spreading in 30 L the Australian - Antarctic Basin. Breakup between TERTIARY

CAINOZOIC 40 the Diamantina Zone and 40 M Nannofossil Ooze LUTETIAN the Labuan Basin. 50 Faulting in the 50 E YPRESIAN Diamantina Zone PALAEOGENE Nannofossil Chalk Pal - Eo L (Munschy, 1998) 60 SELANDIAN 60 E

70 70 San - Pal Southern Margin breakup. Peak extension between Chalk & Siliceous the Naturaliste Plateau 80 LATE limestone and Bruce Rise, 80 exhumation of peridotites in the Diamantina 90 90 Clay-rich Alb - San Zone. Nanno chalk 100 Massive volcanism 100 ?? Clay sandstone, associated with the volcaniclastic Kerguelen hotspot. 110 conglomerate Volcanism on the 110 Barr - Alb Naturaliste Plateau. 120 EARLY 120

HAUTERIVIAN Breakup between India Val - Barr and Australia in the 130 130 VALANGINIAN Perth Abyssal Plain Syn 2 BERRIASIAN Continental extension, 140 syn-rift deposition in 140 the Perth Basin, Bight Basin and the 150 LATE Mentelle Basin 150 Syn 1 160 160 CALLOVIAN

MESOZOIC BATHONIAN 170 MIDDLE ? ? 170 BAJOCIAN 180 180 TOARCIAN stage of rifting 190 190 in the Perth Basin EARLY (Song and Lawood, 2000) 200 200 HETTANGIAN RHAETIAN 210 210 NORIAN LATE 220 220 CARNIAN Basement - Syn 2 230 230 MIDDLE 240 240 SPATHIAN EARLY NAMMALIAN GRIESBACHIAN 250 SCYTHIAN 250 TATARIAN DORASHAMIAN DZHULFIAN 260 LATE MIDIAN 260 KAZANIAN UFIMIAN 270 First stage of rifting 270 in the Perth Basin

280 280

PERMIANEARLY

290 PALAEOZOIC 290 Basement Basement Basement 23/OA/1376