Technical papers

Are the Neoproterozoic Lamil and Throssell Groups of the Paterson Orogen allochthonous? by L. Bagas1, A. Camacho2, and D. R. Nelson3

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Geological Survey of Western Australia 2000–01 Annual Review

14° NORTHERN Vines–Southwest– TERRITORY McKay Fault Arunta Rudall Orogen Complex 22° Amadeus Warri Gravity Basin Ridge WESTERN Musgrave AUSTRALIA Complex Northampton SOUTH Complex AUSTRALIA 30° Leeuwin Complex 500 km !"#$%&'(")#*#(+,-.%&'(")#*#/01+ 2)34/3"55/5()#(1"55#&%$#*"(,(46( 114° 122° 130° LB125A 30.10.01 23(3#"55((/%4)(5#3(

Technical papers

122° 123°

121° Vines 50 km (n=60)

Fault PHANEROZOIC Telfer CANNING ARCHAEAN BASIN PILBARA CRATON 22° 22° S o u t (n=150) Marloo h w e s t Fault Fault

120°E 129°E BIRRINDUDU Arunta Camel–Tabletop Rudall Orogen BANGEMALL PILBARA Fault Zone Complex 24°S AMADEUS Musgrave Complex CAPRICORN Marymia OFFICER Inlier 23° YILGARN McKay Fault Northampton Complex

()*+,-.+-/0)12 32°S 400 km GAWLER ALBANY–FRASER Neoproterozoic– Palaeozoic Basin Proterozoic orogen Limit of Paterson Orogen " Proterozoic basin Archaean craton 123° LB124A 18.10.01 Supersequence 3

Throssell Lamil Group Group Centralian Superbasin Neoproterozoic Tarcunyah Group Bangemall Superbasin Tabletop Terrane Mesoproterozoic Talbot Terrane PATERSON OROGEN

Rudall Complex Connaughton Terrane

Palaeoproterozoic Fault Mine ≥

Geological Survey of Western Australia 2000–01 Annual Review

Officer Amadeus Basin Basin

c. 550 Ma Paterson Orogeny Petermann Orogeny Julie Fm. Supersequence Pertatataka Fm. 3 Olympic Fm. c. 600 Ma

c. 700 Ma c. 680 Ma Throssell Lamil granitoids Miles Orogeny Group Group Choorun Fm. Wilki Fm.

Broadhurst Puntapunta upper Aralka Fm. Formation Formation Inindia beds (sh., carb., turbidites) Supersequence lower Areyonga 2 Coolbro Ss. Malu Fm. Inindia beds Formation

c. 800 Ma Tarcunyah Areyonga Group Uplift carb., red beds, sltst., Bitter Springs Formation sh., evap. Supersequence 1 ss., cong., Heavitree Quartzite sltst., sh. c. 840 Ma

Bangemall Supergroup, Rudall Musgrave Complex and Pilbara Complex and Arunta Complex Craton

LB126B 19.10.01

Technical papers

Malu Formation, Malu Formation, Lamil Group Lamil Group GSWA 137655 GSWA 137657 (n=36) (n=35) Relative cumulative probability Relative cumulative probability

500 1000 1500 2000 2500 3000 3500 500 1000 1500 2000 2500 3000 3500 Age (Ma) Age (Ma)

Coolbro Sandstone, GSWA 137655, Throssell Group 137657, 169118 GSWA 169118 combined plot (n=27) Relative cumulative probability Relative cumulative probability

500 1000 1500 2000 2500 3000 3500 500 1000 1500 2000 2500 3000 3500 Age (Ma) Age (Ma)

LB127a 16.10.01

Geological Survey of Western Australia 2000–01 Annual Review

Musgrave Complex Arunta Orogen

Lamil and Paterson Orogen Throssell Groups Relative cumulative probability Relative cumulative probability

500 1000 1500 2000 2500 3000 3500 500 1000 1500 2000 2500 3000 3500 Age (Ma) Age (Ma)

LB128a 18.10.01

Inindia beds, Amadeus Basin Lamil and Throssell Groups

Relative cumulative probability 500 1000 1500 2000 2500 3000 3500 Age (Ma) LB129a 16.10.01

Technical papers

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Geological Survey of Western Australia 2000–01 Annual Review

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