Northern gawler craton
WebA craton is an ancient part of the Earth's continental crust which has been more or less stable since Precambrian times. Cratons whose ancient rocks are widely exposed at the surface, often with relatively subdued relief, are known as shields.If the ancient rocks are largely overlain by a cover of younger rocks then the 'hidden' craton may be referred to … Webdomain within the Gawler Craton of South Australia (in particular, the northern Olympic Domain; Fig. 1) and preserves a complex geological history that began in the …
Northern gawler craton
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Web26 de jul. de 2024 · The Gawler Craton records a long and complex evolution commencing in the Mesoarchean, and with cratonization in the early Mesoproterozoic (Figures 1 and 2; Hand et al., 2007; Reid, 2024; Reid & Hand, 2012).The oldest identified unit is the ~3.15 Ga Cooyerdoo Granite in the southeastern Gawler Craton (Fraser et al., 2010).All other … WebThe Sleafordian gold mineral system is defined by the region of preserved Archean to early Paleoproterozoic age lithologies (~2555–2460 Ma, Reid et al. 2014) which wraps around the northern and south-eastern side of the Gawler Craton (Figure 1). Belts of mineralised sediment/greenstone/banded iron formation (BIF) lithologies within this arc ...
WebThe depth of the Moho is variable across the Gawler Craton. In the central Gawler Craton, the Moho lies at ~18 s two way time (TWT), ~54 km, yet is considerably shallower in the northern Gawler Craton ~12 s TWT or ~36 km. This difference is related to offsets across north-dipping trans-crustal faults . WebTemporal and isotopic correlation of these indurated rocks with Palaeoproterozoic basins throughout the North Australian Craton suggests they may form part of an extensive basin system that developed across the Australian continent during the Late Palaeoproterozoic. The meta-sedimentary and meta-igneous rocks of the northern Gawler Craton ...
Web31 de dez. de 2007 · The newly defined presence of the Palaeoproterozoic Kimban Orogeny in the northern Gawler Craton demonstrates the Kimban Orogeny to be a major, high-grade, craton-wide orogenic event. This finding contradicts previous suggestions that the northern Gawler Craton was accreted to the proto-Gawler Craton during the later … Web1 de mar. de 2012 · The Gawler Craton preserves a complex and prolonged tectonic history spanning the interval c. 3200-1500 Ma. Reworking of Paleoarchean, c. 3400-3250 Ma crust led to the formation of c. 3150 Ma granites now exposed within a narrow belt in the eastern Gawler Craton. Following this, there is no known record of significant tectonic activity …
WebPrevious thermochronology studies of the northern Gawler Craton have interpreted cooling from mid-crustal temperatures in two phases; either cooling subsequent to a c. …
WebThe poorly exposed northern Gawler Craton comprises four geophysically defined domains, the Peak and Denison Inlier, the Mount Woods Domain, Coober Pedy Ridge … porchfest tysons cornerWeb1 de set. de 2024 · The Mount Woods Domain in the Gawler Craton, South Australia records a complex tectonic evolution spanning the Palaeoproterozoic and … porchfieldWebFrom two orthogonal deep seismic sections (13GA-EG1 and 08GA-OM1; Figures 1,2), across the western and northern margin of the Gawler Craton, respectively, we observe … porchfield square manchesterWebMorris, B.J.; Davies, M.B.; Newton, A.W. 1998: Iron ore deposits of the northern Gawler Craton Monograph Series - Australasian Institute of Mining and Metallurgy 22: 401-406 Betts Peter; Giles David 2002: Orogenic evolution of the northern Gawler Craton Abstracts - Geological Society of Australia 67: 59 porchfield community associationWeb1 de mai. de 2003 · The Mount Woods Domain in the Gawler Craton, South Australia records a complex tectonic evolution spanning the Palaeoproterozoic and … porchfield cricket club isle of wightWebThe Gawler Craton covers approximately 440,000 square kilometres of central South Australia. ... Exploration and regional drilling near the northern end of the Fowler Domain and within the Harris Greenstone Belt has identified numerous large mafic and ultramafic bodies which have the potential to host nickel sulfide mineralisation. sharon wesley md monterey caWebAbstract. The northern Gawler Craton, South Australia holds the key to understanding the Palaeo- to Mesoproterozoic evolution of Australia and the geodynamic setting and significance of major mineralizing systems active at that time, particularly the iron-oxide copper gold (IOCG) mineralization of the Olympic Domain ( 1580 Ma). porchfield cricket club