The crustal scale architecture of the Eastern Succession, Mount Isa: The influence of inversion

The Australo-Antarctic Columbia to Gondwana transition

“…1490 Ma Blenkinsop et al, 2008). The early stages of orogenisis involved thin-skinned thrusting and basin inversion associated with north-south to northwest directed crustal shortening, also associated with high temperature metamorphism, ca.…”

Crustal architecture and geodynamics of North Queensland, Australia: Insights from deep seismic reflection profiling

“…Although intraplate development of these basins has been proposed (see Foster and Austin, 2008), a backarc tectonic setting is favoured by a number of authors Gibson et al, 2008). The Isan Orogeny at 1600 Ma to 1500 Ma inverted at least the youngest of the three basinal developments and has widespread expression across the province, with a complex history involving both north-south and east-west shortening (O'Dea et al, 1997;Blenkinsop et al, 2008). The Etheridge Province also records multiphase deformation and metamorphism between 1620 Ma and 1550 Ma (Withnall et al, 1997;Cihan et al, 2006;Withnall et al, 2009) (Glikson and Derrick, 1978;Wilson, 1978).…”

“…During this interval, polyphase deformation and metamorphism was experienced across the Mount Isa Province, including major approximately east-west contraction, which imparted the dominant meridional structural grain to the province (O'Dea et al, 1997;Blenkinsop et al, 2008) (Fig. 15f).…”

Constraints of deep crustal structures on large deposits in the Cloncurry district, Australia: Evidence from spatial analysis

“…It has become an effective approach for mineral potential mapping by synthesizing various ore-related information (Porwal et al, 2001;Carranza, 2004;De Quadros et al, 2006;Agterberg, 2011;Ford et al, 2015). Austin and Blenkinsop (2009) and Ford and Blenkinsop (2008) applied this method to evaluate the patterns of mineralization in the Mount Isa Inlier. Huston et al (2010) also processed seismic data by WofE method to assess the potential of north Queensland for uranium and geothermal resources.…”

“…Most of the rocks of the Eastern Succession were formed between 1720 and 1590 Ma. Sedimentary and volcanic rocks are described in terms of two further superbasins (the Calvert Superbasin and the Isa Superbasin) which were deposited at 1720-1670 and 1670-1590Ma, respectively (Blake, 1987;Blake and Stewart, 1992;Page and Sun, 1998;Neumann et al, 2006;Foster and Austin, 2008). The rocks of Calvert Superbasin may have been deposited from ca.…”