A Single Late Orogenic Permian Episode of Gold Mineralization in the Hodgkinson Province, North Queensland, Australia

Davis, B. K.; Bell, Chris C.; Lindsay, Mark; Henderson, R. A.

doi:10.2113/gsecongeo.97.2.311

Cited by 14 publications

(14 citation statements)

References 23 publications

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“…The thrust movement must have occurred in the late Devonian Tabberabberan Orogeny, which induced broad scale contraction of the Hodgkinson Province (see Bultitude et al, 1997;Zucchetto et al 1999), because the Palmerville Fault is stitched by Late Carboniferous granites, ruling out appreciable movement on it in the Permian-Triassic Hunter-Bowen Orogeny, but which was responsible for contraction in the province (Bultitude et al, 1997;Davis and Henderson, 1999;Davis et al, 2002).…”

Section: Greenvale Seismic Provincementioning

confidence: 99%

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

et al. 2012

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Section: Greenvale Seismic Provincementioning

confidence: 99%

“…15k). Westward subduction persisted into the Late Paleozoic, terminating with the Hunter-Bowen Orogeny, the effects of which are widespread in the Hodgkinson Province (Bultitude and Champion, 1992;Bultitude et al, 1997;Davis et al, 2002).…”

Section: -360 Mamentioning

confidence: 99%

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

et al. 2012

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“…A study of the structural history (e.g. Zucchetto et al, 1999;Davis et al, 2002) identified several major deformation events: D 1 (Middle Ordovician, EeW shortening, slaty cleavage development), D 2 (Late Ordovician, EeW shortening), D 3 (Early Permian, NEeSW to EeW extension), and D 4 (Permian, EeW to ENEeWSW shortening, representing the main contractional phase of the Hunter-Bowen Orogeny with major granitoid emplacement). Three dominant structural trends are observed in the Hodgkinson Province (Fig.…”

Section: Description Of Regional Geology and Exploration Taskmentioning

confidence: 99%

“…6), as the preserved signatures of the deformation events above. The NeS trending structures are represented by foliations, D 2 fault zones (Davis et al, 2002), and also the Palmerville Fault (Vos and Bierlein, 2006) that bounds the region in the west. Two other major structural trends include NW-trending faults (also called the Desailly structure, see Davis et al, 2002), and NNW-trending shear zones and faults.…”

Section: Description Of Regional Geology and Exploration Taskmentioning

confidence: 99%

Numerical modelling of structural controls on fluid flow and mineralization

Zhang

Robinson

Schaubs

2011

Geoscience Frontiers

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This paper presents the results of a set of numerical models focussing on structural controls on hydrothermal mineralization. We first give an overview of natural phenomena of structurally-controlled ore formation and the background theory and mechanisms for such controls. We then provide the results of a group of simple 2D numerical models validated through comparison with Cu-vein structure observed near the Shilu Copper deposit (Yangchun, Guangdong Province, China) and finally a case study of 3D numerical modelling applied to the Hodgkinson Province in North Queensland (Australia). Two modelling approaches, discrete deformation modelling and continuum coupled deformation and fluid flow modelling, are involved. The 2D model-derived patterns are remarkably consistent with the Cu-vein structure from the Shilu Copper deposit, and show that both modelling approaches can realistically simulate the mechanical behaviours of shear and dilatant fractures. The continuum coupled deformation and fluid flow model indicates that pattern of the Cuveins near the Shilu deposit is the result of shear strain localization, development of dilation and fluid focussing into the dilatant fracture segments. The 3D case-study models (with deformation and fluid flow coupling) on the Hodgkinson Province generated a number of potential gold mineralization targets. ª 2011, China University of Geosciences (Beijing) and Peking University. Production and hosting by Elsevier B.V. All rights reserved.

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“…Two samples were collected from drillcore (KVD28/KVD50) and their origins (intrusive or extrusive) are undetermined. Morrison 1988;Withnall and Lang 1993;Bultitude et al 1997;Zucchetto et al 1999;Davis et al 2002). Abbreviations: T+M Tectonic framework and mineralisation, Volc+Mag volcanism and magmatism, Sed sedimentation Petrographic examination of the mafic volcanic units indicates that all samples have been metamorphosed to sub-greenschist facies and now consist of assemblages containing mainly carbonate, albite and chlorite, with minor actinolite, epidote, calcite, quartz and sphene ( Fig.…”

Section: Sample Description Petrography and Alterationmentioning

confidence: 99%

Geochemistry of Early–Middle Palaeozoic basalts in the Hodgkinson Province: a key to tectono-magmatic evolution of the Tasman Fold Belt System in northeastern Queensland, Australia

Vos

Bierlein

Webb

2005

Int J Earth Sci (Geol Rundsch)

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The Palaeozoic Hodgkinson Province in northeastern Queensland, Australia, is host to Late Ordovician to Devonian rock assemblages that contain tholeiitic to calc-alkaline basalts. These basalts occur as massive fault-bounded units interspersed with marine sedimentary rocks and limestones that are metamorphosed to lower greenschist facies in the Ordovician Mulgrave, Silurian Chillagoe and Devonian Hodgkinson formations, respectively. The petrogenetic and SmNd isotope characteristics of these mafic volcanic rocks were investigated to constrain the tectonic setting in which they erupted. Major, trace and rare earth element analyses were carried out on samples from these formations and intrusive dolerites. The mafic rocks can be classified as basalts and basaltic andesites with distinct MORB characteristics. Furthermore, the basalts are characterized by a slight to moderate enrichment in Th and concomitant depletion in Nb, both of which become less pronounced with basalt evolution through time. These features are consistent with decreasing volcanic arc affinity of Silurian and Devonian MORB-type basalts in the Hodgkinson Province. Sm-Nd isotope characteristics of these basalts indicate a change in source region from dominantly sub-continental lithospheric mantle in the Silurian to asthenospheric input in the Devonian. Collectively, the geochemical and isotopic characteristics of the Hodgkinson Province basalts are interpreted to reflect deposition in an evolving back-arc basin setting. The onset of basin extension was initiated in the Silurian. Accelerated basin subsidence occurred throughout the Devonian and was halted by basin inversion in the Late Devonian. Basin evolution was controlled by an eastward stepping subduction zone outboard of the Australian Craton.

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A Single Late Orogenic Permian Episode of Gold Mineralization in the Hodgkinson Province, North Queensland, Australia

Cited by 14 publications

References 23 publications

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

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

Numerical modelling of structural controls on fluid flow and mineralization

Geochemistry of Early–Middle Palaeozoic basalts in the Hodgkinson Province: a key to tectono-magmatic evolution of the Tasman Fold Belt System in northeastern Queensland, Australia

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