Tracking sediment dispersal during orogenesis: A zircon age and Hf isotope study from the western Amadeus Basin, Australia

Haines, Peter W.; Kirkland, Christopher L.; Wingate, Michael T.D.; Allen, Heidi J.; Белоусова, Е. А.; Gréau, Yoann

doi:10.1016/j.gr.2015.08.011

Cited by 36 publications

(42 citation statements)

References 48 publications

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“…Note the rift stages refer specifically to the southern margin. Pre‐rift taken as a composite of aspects of the Neoproterozoic and Palaeozoic (Barham et al, ; Haines et al, , ; Morón et al, ; Olierook et al, ). Syn‐rift information derived from and Barham et al (); Lloyd et al (); Tucker, Roberts, Hu, Kemp, and Salisbury (); Veevers et al ().…”

Section: Discussionmentioning

confidence: 99%

“…Throughout central Australia lies the intracratonic Neoproterozoic to Palaeozoic Centralian Superbasin, which comprises sediments with a shared depositional history across the discrete depocentres of the Amadeus, Officer, Georgina, Ngalia and Murraba Basins (Grey et al, ; Haines et al, , ; Walter, Veevers, Calver, & Grey, ). As the largest preserved element of the Centralian Superbasin, the largely buried Officer Basin extends broadly NNW‐SSE from central Australia and underlies Mesozoic sediments that formed during the rifting of Australia and Antarctica (Figures and ; Barham et al, ; Haines, Hocking, Grey, & Stevens, ).…”

Section: Geological Background and Evolution Of The Bight And Eucla Bmentioning

confidence: 99%

“…Although the geology of East Antarctica is largely inaccessible due to ice‐cover, extended Australia‐Antarctica connection prior to rifting means many of the major Australian crystalline basement elements are shared with the pre‐rifted adjacent Antarctic margin (Aitken et al, ; Barham, Kirkland, & Hollis, ; Fitzsimons, ; Morrissey, Hand, & Kelsey, ; Morrissey, Payne et al, ). Recent work on Proterozoic to Cenozoic depocentres around the central southern margin of Australia have increased understanding of clastic sediment dynamics in the region and shown remarkable stability of the detrital zircon fingerprint that supports extensive recycling and sustained source to sink connections for extended periods (Barham et al, , ; Haines et al, ; Hou et al, ; Lloyd et al, ; MacDonald et al, ; Reid, Keeling, Boyd, Belousova, & Hou, ; Spaggiari, Kirkland, Smithies, Wingate, & Belousova, ; Veevers et al, ). New drilling campaigns and open access to Ocean Drilling Programme (ODP) legacy material provides an important opportunity to compare offshore and more marginal sediment samples against those of older depocentres.…”

Section: Introductionmentioning

confidence: 99%

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Changing of the guards: Detrital zircon provenance tracking sedimentological reorganization of a post‐Gondwanan rift margin

Barham

Kirkland

2019

Basin Research

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Understanding the development of sedimentary systems during continental rifting is important for tracking environmental change and lithospheric processes. Conceptual models have been developed for the sourcing, routing and facies architecture of sediments in rift-settings, driven in part by quantitative sediment tracking. Here, we present laser ablation split-stream detrital zircon U/Pb geochronology and Hf-isotopes for post-rift (Cretaceous-Paleogene) clastic sediments from Ocean Drilling Program (ODP) wells and Plio-Pleistocene palaeoshoreline material, from the southern margin of Australia. Provenance results are contextualized through comparison with wellcharacterized source regions and regional pre-and syn-rift sediment reservoirs to track changes associated with Australia-Antarctica separation during East Gondwana break-up. The provenance character of the post-rift sediments studied are distinct from pre-existing sediment reservoirs and demonstrate termination of previously stable sediment routing systems and a dominance of local basement of the Proterozoic Madura and Coompana provinces (~1.2 Ga and CHUR-like Hf-signatures; Moodini Supersuite) in offshore ODP wells. A composite post-rift Cretaceous?-Eocene sample in the easternmost well expresses characteristic Phanerozoic zircon age signatures associated with source regions in eastern Australia that are interpreted to reflect inversion in the Ceduna Sub-basin to the east. Detrital zircon signatures in Plio-Pleistocene palaeoshoreline sediment are also relatively distinct, indicating derivation from coastal erosion in the Leeuwin Complex (~0.5 and 0.7 Ga subchondritic grains) and Albany-Fraser Orogen (~1.2 Ga subchondritic grains) several hundred, to over a thousand kilometers to the west. Collectively, results highlight the fundamental geological processes associated with rifting that dramatically change the character of sediment provenance via (a) isolation of pre-existing primary and secondary sources of detritus, (b) development of new source regions in basin compartmentalized highs and localized fault scarps, and (c) establishment of marine and coastal currents that redefine clastic sediment transport.

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Section: Discussionmentioning

confidence: 99%

Section: Geological Background and Evolution Of The Bight And Eucla Bmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Changing of the guards: Detrital zircon provenance tracking sedimentological reorganization of a post‐Gondwanan rift margin

Barham

Kirkland

2019

Basin Research

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“…Synorogenic sedimentary rocks associated with erosion during the Petermann Orogeny are only found in the western foreland of the Musgrave Block (Mount Currie Conglomerate and Mutitjulu Arkose [ Forman , ; Wells et al ., ; Young et al ., ]) (Figure ) and possibly in hinterland pull‐apart basins (Levenger and Moorilyanna Formation) [ Major and Conor , ; Aitken et al ., ] (Figures and ). The affinity of the Mount Currie Conglomerate and Mutitjulu Arkose with the Petermann Orogeny has recently been challenged [ Haines et al ., ]. Nevertheless, syntectonic foreland deposits, if present, are generally too narrow and not voluminous enough to have formed by erosion of a large‐scale nappe structure during a major tectonic event, such as the Petermann Orogeny [ Wells et al ., ; Shaw et al ., ].…”

Section: Discussionmentioning

confidence: 99%

Geometry of a large‐scale, low‐angle, midcrustal thrust (Woodroffe Thrust, central Australia)

et al. 2017

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The Musgrave Block in central Australia exposes numerous large‐scale mylonitic shear zones developed during the intracontinental Petermann Orogeny around 560–520 Ma. The most prominent structure is the crustal‐scale, over 600 km long, E‐W trending Woodroffe Thrust, which is broadly undulate but generally dips shallowly to moderately to the south and shows an approximately top‐to‐north sense of movement. The estimated metamorphic conditions of mylonitization indicate a regional variation from predominantly midcrustal (circa 520–620°C and 0.8–1.1 GPa) to lower crustal (~650°C and 1.0–1.3 GPa) levels in the direction of thrusting, which is also reflected in the distribution of preserved deformation microstructures. This variation in metamorphic conditions is consistent with a south dipping thrust plane but is only small, implying that a ≥60 km long N‐S segment of the Woodroffe Thrust was originally shallowly dipping at an average estimated angle of ≤6°. The reconstructed geometry suggests that basement‐cored, thick‐skinned, midcrustal thrusts can be very shallowly dipping on a scale of many tens of kilometers in the direction of movement. Such a geometry would require the rocks along the thrust to be weak, but field observations (e.g., large volumes of syntectonic pseudotachylyte) argue for a strong behavior, at least transiently. Localization on a low‐angle, near‐planar structure that crosscuts lithological layers requires a weak precursor, such as a seismic rupture in the middle to lower crust. If this was a single event, the intracontinental earthquake must have been large, with the rupture extending laterally over hundreds of kilometers.

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“…5-7; Spaggiari et al, 2014). Significant contributions of late Mesoproterozoic (~1.3-1.0 Ga) zircon grains are recognised across the Officer Basin and wider central Australian basins, which are attributed to derivation from the Musgrave Province (e.g., Haines et al, 2016;Reid et al, 2013). Similarly, the more juvenile Hf-character and age of 796 A slightly younger shift in the sub-population age, coupled with more juvenile Hf-isotope 813 signatures, indicates a different source for the majority of detrital zircon grains from the 814 Madura Shelf in the c. 1650 Ma age peak, and infer a greater input from the Musgrave Province than the AFO (Fig.…”

Section: Stabilised Sediment Sourcing and Recyclingmentioning

confidence: 99%

Sediment routing and basin evolution in Proterozoic to Mesozoic east Gondwana: A case study from southern Australia

et al. 2018

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Sedimentary rocks along the southern margin of Australia host an important record of the 18 break-up history of east Gondwana, as well as fragments of a deeper geological history, which collectively help inform the geological evolution of a vast and largely underexplored 20 region. New drilling through Cenozoic cover has allowed examination of the Cretaceous riftrelated Madura Shelf sequence (Bight Basin), and identification of two new stratigraphic units beneath the shelf; the possibly Proterozoic Shanes Dam Conglomerate and the 1 interpreted Palaeozoic southern Officer Basin unit, the Decoration Sandstone. Recognition of these new units indicates an earlier basinal history than previously known. Lithostratigraphy of the new drillcore has been integrated with that published from onshore and offshore cores to present isopach maps of sedimentary cover on the Madura Shelf. New palynological data demonstrate progression from more localized freshwater-brackish fluviolacustrine clastics in the early Cretaceous (Foraminisporis wonthaggiensis-Valanginian to Barremian) to widespread topography-blanketing, fully marine, glauconitic mudrocks in the mid Cretaceous (Endoceratium ludbrookiae-Albian). Geochronology and Hf-isotope geochemistry show detrital zircon populations from the Madura Shelf are comparable to those from the southern Officer Basin, as well as Cenozoic shoreline and palaeovalley sediments in the region. The detrital zircon population from the Shanes Dam Conglomerate is defined by a unimodal ~1400 Ma peak, which correlates with directly underlying crystalline basement of the Madura Province. Peak ages of ~1150 Ma and ~1650 Ma dominate the age spectra of all other samples, indicating a stable sediment reservoir through much of the Phanerozoic, with sediments largely sourced from the Albany-Fraser and Musgrave Orogens (directly and via multiple recycling events). The Madura Shelf data differ from published data for the Upper Cretaceous Ceduna Delta to the east, indicating significant differences in sediment provenance and routing between the Ceduna Sub-basin and central Bight Basin.

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Tracking sediment dispersal during orogenesis: A zircon age and Hf isotope study from the western Amadeus Basin, Australia

Cited by 36 publications

References 48 publications

Changing of the guards: Detrital zircon provenance tracking sedimentological reorganization of a post‐Gondwanan rift margin

Changing of the guards: Detrital zircon provenance tracking sedimentological reorganization of a post‐Gondwanan rift margin

Geometry of a large‐scale, low‐angle, midcrustal thrust (Woodroffe Thrust, central Australia)

Sediment routing and basin evolution in Proterozoic to Mesozoic east Gondwana: A case study from southern Australia

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