Статті в журналах: "Proterozoic Australia"

1

Myers, John S., Russell D. Shaw, and Ian M. Tyler. "Tectonic evolution of Proterozoic Australia." Tectonics 15, no. 6 (December 1996): 1431–46. http://dx.doi.org/10.1029/96tc02356.

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2

Plumb, K. A. "Proterozoic geology of Australia and palaeomagnetism." Exploration Geophysics 24, no. 2 (June 1993): 213–18. http://dx.doi.org/10.1071/eg993213.

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3

McLaren, Sandra, Mike Sandiford, and Roger Powell. "Contrasting styles of Proterozoic crustal evolution: A hot-plate tectonic model for Australian terranes." Geology 33, no. 8 (August 1, 2005): 673–76. http://dx.doi.org/10.1130/g21544ar.1.

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Abstract Proterozoic terranes in Australia record complex tectonic histories in the interval 1900– 1400 Ma that have previously been interpreted by means of simple intracratonic or plate-tectonic models. However, these models do not fully account for (1) repeated tectonic reactivation (both orogenesis and rifting), (2) mainly high-temperature–low-pressure metamorphism, (3) rifting and sag creating thick sedimentary basins, (4) the nature and timing of voluminous felsic magmatism, (5) relatively large aspect ratio orogenic belts, and (6) a general paucity of diagnostic plate-boundary features. A key to understanding these histories is the observation that Australian Proterozoic terranes are characterized by an extraordinary, but heterogeneous, enrichment of the heat-producing elements. This enrichment must contribute to long-term lithospheric weakening, and thus we advocate a hybrid lithospheric evolution model with two tectonic switches: plate-boundary–derived stresses and heat-producing-element–related lithospheric weakening. The Australian Proterozoic crustal growth record is therefore a function of the magnitude of these stresses, the way in which the heat-producing elements are distributed, and how both of these change with time.

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4

Cawood, P. A., and R. J. Korsch. "Assembling Australia: Proterozoic building of a continent." Precambrian Research 166, no. 1-4 (October 2008): 1–35. http://dx.doi.org/10.1016/j.precamres.2008.08.006.

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5

Townson, W. G. "THE SUBSURFACE GEOLOGY OF THE WESTERN OFFICER BASIN — RESULTS OF SHELL'S 1980-1984 PETROLEUM EXPLORATION CAMPAIGN." APPEA Journal 25, no. 1 (1985): 34. http://dx.doi.org/10.1071/aj84003.

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The Officer Basin described in this paper includes four Proterozoic to Lower Palaeozoic sub-basins (Gibson, Yowalga, Lennis, Waigen) which extend in a northwest to southeast belt across 200 000 sq. km of central Western Australia. These sub-basins are bounded by Archaean to Proterozoic basement blocks and are almost entirely concealed by a veneer of Permian and Cretaceous sediments. Depth to magnetic basement locally exceeds eight kilometres.Until recently, information on the sub-surface geology was limited to shallow levels, based on the results of a petroleum exploration campaign in the 1960s and the work of State and Federal Geological Surveys. In 1980, the Shell Company of Australia was awarded three permits (46 200 sq. km) covering the Yowalga and Lennis Sub-basins. The results of 4700 km of seismic data and three deep wildcat wells, combined with gravity, aeromagnetic, Landsat, outcrop and corehole information, has led to a better understanding of the regional subsurface geology.The Lennis Sub-basin appears to contain Lower to Middle Proterozoic sediments, whereas the Yowalga Sub- basin is primarily an Upper Proterozoic to Lower Cambrian sequence which comprises a basal clastic section, a middle carbonate and evaporite sequence and an upper clastic section. Widespread Middle Cambrian basalts cap the Upper Proterozoic to Lower Cambrian prospective sequence. Late Proterozoic uplift resulted in salt- assisted gravity tectonics leading to complex structural styles, especially in the basin axis.Despite oil shows, organic matter in the oil and gas generation windows and reservoir-quality sandstones with interbedded shales, no convincing source rocks or hydrocarbon accumulations have yet been located. The area remains, however, one of the least explored basins in Australia.

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6

Burrett, Clive, and Ronald Berry. "Proterozoic Australia–Western United States (AUSWUS) fit between Laurentia and Australia." Geology 28, no. 2 (February 2000): 103–6. http://dx.doi.org/10.1130/0091-7613(2000)028<0103:pawusa>2.3.co;2.

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7

Burrett, Clive, and Ronald Berry. "Proterozoic Australia–Western United States (AUSWUS) fit between Laurentia and Australia." Geology 28, no. 2 (2000): 103. http://dx.doi.org/10.1130/0091-7613(2000)28<103:pausaf>2.0.co;2.

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8

Uysal, I. Tonguç, Claudio Delle Piane, Andrew James Todd, and Horst Zwingmann. "Precambrian faulting episodes and insights into the tectonothermal history of north Australia: microstructural evidence and K–Ar, <sup>40</sup>Ar–<sup>39</sup>Ar, and Rb–Sr dating of syntectonic illite from the intracratonic Millungera Basin." Solid Earth 11, no. 5 (September 4, 2020): 1653–79. http://dx.doi.org/10.5194/se-11-1653-2020.

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Abstract. Australian terranes concealed beneath Mesozoic cover record complex Precambrian tectonic histories involving a successive development of several Proterozoic to Palaeozoic orogenic systems. This study presents an integrated approach combining K–Ar, 40Ar–39Ar, and Rb–Sr geochronologies of Precambrian authigenic illites from the recently discovered Millungera Basin in north-central Australia. Brittle deformation and repeated fault activity are evident from the sampled cores and their microstructures, probably associated with the large-scale faults inferred from interpretations of seismic surveys. Rb–Sr isochron, 40Ar–39Ar total gas, and K–Ar ages are largely consistent in indicating late Mesoproterozoic and early Proterozoic episodes (∼1115±26, ∼ 1070±25, ∼1040±24, ∼1000±23, and ∼905±21 Ma) of active tectonics in north-central Australia. K–Ar results show that illites from fault gouges and authigenic matrix illites in undeformed adjacent sandstones precipitated contemporaneously, indicating that advection of tectonically mobilized fluids extended into the undeformed wall rocks above or below the fracture and shear (fault gouge) zones. Isotopic age data clearly indicate a Mesoproterozoic minimum age for the Millungera Basin and thus previously unrecorded late Mesoproterozoic–early Neoproterozoic tectonic events in north-central Australia. This study provides insight into the enigmatic time–space distribution of Precambrian tectonic zones in central Australia, which are responsible for the formation of a number of sedimentary basins with significant energy and mineral resources.

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9

Wyborn, L. A. I., D. Wyborn, R. G. Warren, and B. J. Drummond. "Proterozoic granite types in Australia: implications for lower crust composition, structure and evolution." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 83, no. 1-2 (1992): 201–9. http://dx.doi.org/10.1017/s0263593300007896.

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ABSTRACTGranites and their associated comagmatic felsic volcanic rocks occur in most Proterozoic provinces of Australia. Using multi-element, primordial-mantle-normalised abundance diagrams and various petrological characteristics, Australian Proterozoic granites can be subdivided into five groups: (i) I-type, Sr-depleted, Y-undepleted, restite-dominated, (ii) I- type, Sr-depleted, Y-undepleted, fractionated, low in incompatible elements, (iii) I-type Sr-depleted, Y-undepleted, enriched in incompatible elements (anorogenic granites), (iv) I-type, Sr-undepleted, Y-depleted, (v) S-type, Sr-depleted, Y-undepleted. The four Sr-depleted groups dominate, and group (iv) is of very limited extent. A comparison of these Proterozoic granites with Australian and Papua New Guinean granites of other time periods shows that these characteristic Sr-depleted Y-undepleted patterns are also dominant in early Palaeozoic granites. They are significantly different from those of granites in modern island arcs associated with subduction, and with most granites from Archaean terranes, where the multi-element diagrams are dominated by Sr-undepleted, Y-depleted patterns.The Sr-depleted, Y-undepleted patterns are thought to indicate source regions that contained plagioclase but not garnet, whilst the Sr-undepleted, Y-depleted patterns are taken to correspond with the presence of garnet, but not plagioclase, in the source rocks. The Sr-depleted, Y-undepleted patterns also only occur in regions where the lower crustal structure is dominated by an underplated mafic layer with a P-wave velocity of 7·2-7·-4 km/s. In contrast, in regions where the granites are dominated by Sr-undepleted, Y-depleted patterns, such as in the Archaean and in Cainozoic island arcs, this intermediate velocity layer is not present, and the crust-mantle boundary is very sharp.Two other distinctive compositional changes have been noted among the I-type granites of different age. Firstly, Na is highest in Archaean and Cainozoic granites, and lowest in early Proterozoic granites; Palaeozoic and Mesozoic granites have intermediate values. Secondly, late Archaean and Proterozoic granites are the most enriched in K, Th and U, while the Cainozoic and early Archaean tonalites are the most depleted; Palaeozoic and Mesozoic granites again contain intermediate amounts of those elements.

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10

Ashley, Paul M., Bernd G. Lottermoser, and Keith M. Scott. "Supergene iron phosphate minerals in Proterozoic ironstones from the Olary Block, South Australia." Neues Jahrbuch für Mineralogie - Monatshefte 1997, no. 7 (September 12, 1997): 309–27. http://dx.doi.org/10.1127/njmm/1997/1997/309.

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11

Young, Grant M. "Late Proterozoic stratigraphy and the Canada-Australia connection." Geology 20, no. 3 (1992): 215. http://dx.doi.org/10.1130/0091-7613(1992)020<0215:lpsatc>2.3.co;2.

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12

Wilson, I. H. "Geochemistry of Proterozoic Volcanics, Mount Isa Inlier, Australia." Geological Society, London, Special Publications 33, no. 1 (1987): 409–23. http://dx.doi.org/10.1144/gsl.sp.1987.033.01.28.

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13

de Vries, Sjoukje T., Lynn L. Pryer, and Nicola Fry. "Evolution of Neoarchaean and Proterozoic basins of Australia." Precambrian Research 166, no. 1-4 (October 2008): 39–53. http://dx.doi.org/10.1016/j.precamres.2008.01.005.

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14

Clark, Chris, David E. Kelsey, and Martin Hand. "Assembling Proterozoic Australia: Inside out or outside in?" Gondwana Research 11, no. 4 (June 2007): 575–76. http://dx.doi.org/10.1016/j.gr.2006.11.003.

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15

Smits, R. G., W. J. Collins, M. Hand, R. Dutch, and J. Payne. "A Proterozoic Wilson cycle identified by Hf isotopes in central Australia: Implications for the assembly of Proterozoic Australia and Rodinia." Geology 42, no. 3 (March 2014): 231–34. http://dx.doi.org/10.1130/g35112.1.

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16

Gibson, G. M., and D. C. Champion. "Antipodean fugitive terranes in southern Laurentia: How Proterozoic Australia built the American West." Lithosphere 11, no. 4 (June 10, 2019): 551–59. http://dx.doi.org/10.1130/l1072.1.

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Abstract Paleoproterozoic arc and backarc assemblages accreted to the south Laurentian margin between 1800 Ma and 1600 Ma, and previously thought to be indigenous to North America, more likely represent fragments of a dismembered marginal sea developed outboard of the formerly opposing Australian-Antarctic plate. Fugitive elements of this arc-backarc system in North America share a common geological record with their left-behind Australia-Antarctic counterparts, including discrete peaks in tectonic and/or magmatic activity at 1780 Ma, 1760 Ma, 1740 Ma, 1710–1705 Ma, 1690–1670 Ma, 1650 Ma, and 1620 Ma. Subduction rollback, ocean basin closure, and the arrival of Laurentia at the Australian-Antarctic convergent margin first led to arc-continent collision at 1650–1640 Ma and then continent-continent collision by 1620 Ma as the last vestiges of the backarc basin collapsed. Collision induced obduction and transfer of the arc and more outboard parts of the Australian-Antarctic backarc basin onto the Laurentian margin, where they remained following later breakup of the Neoproterozoic Rodinia supercontinent. North American felsic rocks generally yield Nd depleted mantle model ages consistent with arc and backarc assemblages built on early Paleoproterozoic Australian crust as opposed to older Archean basement making up the now underlying Wyoming and Superior cratons.

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17

Clarke, G. L. "Proterozoic tectonic reworking in the Rudall complex, Western Australia." Australian Journal of Earth Sciences 38, no. 1 (February 1991): 31–44. http://dx.doi.org/10.1080/08120099108727953.

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18

Ding, P., P. R. James, and M. Sandiford. "Late proterozoic deformation in the Amadeus Basin, Central Australia." Australian Journal of Earth Sciences 39, no. 4 (September 1992): 495–500. http://dx.doi.org/10.1080/08120099208728041.

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19

Oliver, Nick, and Vic Wall. "Metamorphic plumbing system in Proterozoic calc-silicates, Queensland, Australia." Geology 15, no. 9 (1987): 793. http://dx.doi.org/10.1130/0091-7613(1987)15<793:mpsipc>2.0.co;2.

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20

Lindsay, Mark D., Sandra Occhipinti, Alan R. A. Aitken, Václav Metelka, Julie Hollis, and Ian Tyler. "Proterozoic accretionary tectonics in the east Kimberley region, Australia." Precambrian Research 278 (June 2016): 265–82. http://dx.doi.org/10.1016/j.precamres.2016.03.019.

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21

GILES, C. "Petrogenesis of the Proterozoic Gawler Range Volcanics, South Australia." Precambrian Research 40-41 (October 1988): 407–27. http://dx.doi.org/10.1016/0301-9268(88)90078-2.

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22

Myers, J. S., and M. E. Barley. "Proterozoic tectonic framework and metal deposits of southwestern Australia." Precambrian Research 58, no. 1-4 (October 1992): 345–54. http://dx.doi.org/10.1016/0301-9268(92)90124-7.

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23

Wingate, Michael T. D., and David A. D. Evans. "Palaeomagnetic constraints on the Proterozoic tectonic evolution of Australia." Geological Society, London, Special Publications 206, no. 1 (2003): 77–91. http://dx.doi.org/10.1144/gsl.sp.2003.206.01.06.

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24

Gorton, Justin, and Alison Troup. "Petroleum systems of the Proterozoic in northwest Queensland and a description of various play types." APPEA Journal 58, no. 1 (2018): 311. http://dx.doi.org/10.1071/aj17115.

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As part of Queensland Government’s Strategic Resources Exploration Program, in conjunction with the Australian Government’s Exploring for the Future program, a study to improve the subsurface knowledge of Proterozoic basins in northwest Queensland (NWQ) is underway. Proterozoic sedimentary basins are prevalent across central and western Australia. Several of these basins have proven petroleum systems, with the best discoveries to date being in the Greater McArthur Basin, Northern Territory. Recent exploration and appraisal in the Beetaloo Sub-basin of the Greater McArthur Basin has identified large volumes of gas resources contained within unconventional shale reservoirs. In NWQ, the Isa Superbasin and overlying South Nicholson Basin are related in both age and likely deposition to the Greater McArthur Basin. The thick, extensive shale units of the Isa Superbasin are excellent source rocks, while the Mullera Formation in the South Nicholson Basin also has potential but has not been investigated in detail. There are several potential reservoirs within the Proterozoic section and younger units of the overlying Georgina and Carpentaria basins, including clastic and carbonate types. Exploration in the Isa Superbasin identified an estimated 22.1 trillion cubic feet of prospective resources (Armour Energy 2015) in unconventional shale reservoirs of the Lawn Hill Formation and Riversleigh Siltstone. This paper will discuss the stratigraphy, depositional and structural history of these Proterozoic basins and characterise their source and reservoir units using existing and recently acquired geophysical, geochemical, petrographic and petrophysical datasets. From this, several plays or play concepts will be identified and described to help understand the region’s potential for both conventional and unconventional petroleum resources.

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25

Ortega-Gutiérrez, Fernando, J. Duncan Keppie, Clive Burrett, and Ronald Berry. "Proterozoic Australia–Western United States (AUSWUS) fit between Laurentia and Australia: Comment and Reply." Geology 28, no. 9 (September 2000): 863–64. http://dx.doi.org/10.1130/0091-7613(2000)028<0863:pawusa>2.3.co;2.

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26

Ortega-Gutiérrez, Fernando, and J. Duncan Keppie. "Proterozoic Australia–Western United States (AUSWUS) fit between Laurentia and Australia: Comment and Reply." Geology 28, no. 9 (2000): 863. http://dx.doi.org/10.1130/0091-7613(2000)28<863:pausaf>2.0.co;2.

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27

Burrett, Clive, and Ronald Berry. "Proterozoic Australia–Western United States (AUSWUS) fit between Laurentia and Australia: Comment and Reply." Geology 28, no. 9 (2000): 863. http://dx.doi.org/10.1130/0091-7613(2000)28<864:pausaf>2.0.co;2.

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28

Zang, W. L., and M. R. Walter. "Latest Proterozoic plankton from the Amadeus Basin in central Australia." Nature 337, no. 6208 (February 1989): 642–45. http://dx.doi.org/10.1038/337642a0.

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29

Passchier, C. W., and P. R. Williams. "Proterozoic extensional deformation in the Mount Isa inlier, Queensland, Australia." Geological Magazine 126, no. 1 (January 1989): 43–53. http://dx.doi.org/10.1017/s0016756800006130.

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AbstractThe earliest of four distinct phases of deformation recognized in the central part of the Proterozoic Mount Isa inlier involved brittle extensional faulting at shallow crustal levels. Extensional faulting produced stacks of imbricate fault slices, listric normal faults and characteristic tourmalinerich breccias. Structures belonging to this phase occur over a large part of the inlier and indicate an important phase of basin-forming crustal or lithospheric extension at 1750–1730 Ma. Late intense ductile deformation and tight folding of the imbricate systems destroyed part of these older structures, and obscures their existence in many parts of the inlier.

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30

BLAKE, D., and R. PAGE. "The Proterozoic Davenport province, central Australia: regional geology and geochronology." Precambrian Research 40-41 (October 1988): 329–40. http://dx.doi.org/10.1016/0301-9268(88)90074-5.

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31

Holcombe, R. J., P. J. Pearson, and N. H. S. Oliver. "Geometry of a Middle Proterozoic extensional décollement in northeastern Australia." Tectonophysics 191, no. 3-4 (June 1991): 255–74. http://dx.doi.org/10.1016/0040-1951(91)90061-v.

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32

Jenkins, Richard J. F., David M. McKirdy, Clinton B. Foster, Teresa O'Leary, and Stephen D. Pell. "The record and stratigraphie implications of organic-walled microfossils from the Ediacaran (terminal Proterozoic) of South Australia." Geological Magazine 129, no. 4 (July 1992): 401–10. http://dx.doi.org/10.1017/s001675680001949x.

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AbstractTwo assemblages of organic-walled microfossils have been recognized in drillcore samples from the late Proterozoic Rodda Beds in theeastern Officer Basin, South Australia. The fossils include tube-like remains and large, simple and sculptured acritarchs. Lithostratigraphic studies and seismic information, in conjunction with previous (albeit limited) acritarch finds, allow local correlation of the Rodda Beds with Ediacaran or terminal Proterozoic sequences in the northern Adelaide Fold Belt (site of the nominated Ediacaran stratotype). The new palynofloras are comparable withacritarch assemblages in the Amadeus Basin of central Australia, and suggest tentative correlations with sequences in China and the U.S.S.R. The presence of isotopically heavy marine carbonate in the lower fossiliferous horizons of the Rodda Beds (σ13CPDB = +3 to +6%0) is consistent with isotopic data from the equivalent interval in China. In contrast, the upper fossiliferous strata occur higher in the Rodda Beds where carbonate is significantly lighter (σ13CPDB = -1 to + 3%0).

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33

Sharma, Mukund, and Santosh K. Pandey. "Stromatolites of the Kaladgi Basin, Karnataka, India: Systematics, biostratigraphy and age implications." Journal of Palaeosciences 61, no. (1-2) (December 31, 2012): 103–21. http://dx.doi.org/10.54991/jop.2012.353.

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Systematics of the stromatolites of the Proterozoic Kaladgi Basin is attempted. The main purpose is to document the diversity and distribution of the various stromatolite forms occurring in the Bagalkot Group of the Kaladgi Supergroup. An assemblage of six taxa is recognized from the Bagalkot Group. The forms Asperia digitata (=Yelma digitata), Ephyaltes edingunnensis, Eucapsiphora leakensis, Kussoidella karalundiensis, Pilbaria deverella and Yandilla meekatharrensis are described. These forms are not recorded from any other Proterozoic Sequence of India of the Palaeoproterozoic age. Similar forms are recorded from Africa, Australia, Canada and China. Asperia digitata, a digitate stromatolite, is known from the Proterozoic Sequence of the Palaeoproterozoic age in other parts of the world. Poorly constrained age of the Bagalkot Group of the Kaladgi Supergroup can be ascertained on the basis of the reported assemblage as Late Palaeoproterozoic to Early Mesoproterozoic (Orosirian-Statherian to Calymmian Period).

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34

Taylor, David, and David Moore. "Victoria's Proterozoic basement controls the distribution of its southern margin petroleum basins." APPEA Journal 49, no. 2 (2009): 581. http://dx.doi.org/10.1071/aj08054.

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There are three petroleum basins of differing character off the Victorian coast: the Otway, Bass and Gippsland basins. These formed during continental rifting between Australia, Antarctica and New Zealand, associated with the break up of Gondwana Marked variation in the development of these basins appears to have been largely controlled by the distribution of Proterozoic basement—the Selwyn Block—under central Victoria. Lying deep under central Victoria, this block surfaces towards the coast and continues southward as the Proterozoic crust of western Tasmania. The boundaries of this block are coincident with the boundaries separating the three basins. The Otway Basin in western Victoria represents a clean break between Australia and Antarctica. The Otway Basin has thick fill upon thinned continental crust with an outboard break to a continent-ocean boundary. The overall geometry here is a classic lower plate margin. This clean continental break-up failed to propagate eastward across the Proterozoic Selwyn Block. Instead, localised continental stretching resulted in some grabens and the overlying steers head sag of the Bass Basin. True continental separation was transferred southward to the margin of the Tasmania/Selwyn Block. The Gippsland Basin lies east of the Selwyn Block. Its development reflects initial southern margin rifting, but this was overtaken by orthogonal-oriented Tasman rifting. This left the Gippsland Basin with a complex interplay of north-south and east-west structures controlling the platforms, terraces and deeps.

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35

Shen, Y. "Middle Proterozoic ocean chemistry: Evidence from the McArthur Basin, northern Australia." American Journal of Science 302, no. 2 (February 1, 2002): 81–109. http://dx.doi.org/10.2475/ajs.302.2.81.

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36

Spaggiari, Catherine V., R. Hugh Smithies, Christopher L. Kirkland, Michael T. D. Wingate, Richard N. England, and Yong-Jun Lu. "Buried but preserved: The Proterozoic Arubiddy Ophiolite, Madura Province, Western Australia." Precambrian Research 317 (October 2018): 137–58. http://dx.doi.org/10.1016/j.precamres.2018.08.025.

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37

Pidgeon, R. T. "Timing of plutonism in the Proterozoic Albany Mobile Belt, southwestern Australia." Precambrian Research 47, no. 3-4 (May 1990): 157–67. http://dx.doi.org/10.1016/0301-9268(90)90036-p.

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38

Ostwald, J. "Diagenetic and supergene braunites in the Proterozoic Manganese Group, Western Australia." Mineralogical Magazine 56, no. 385 (December 1992): 611–15. http://dx.doi.org/10.1180/minmag.1992.056.385.18.

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39

Selway, K., M. Hand, G. S. Heinson, and J. L. Payne. "Magnetotelluric constraints on subduction polarity: Reversing reconstruction models for Proterozoic Australia." Geology 37, no. 9 (September 1, 2009): 799–802. http://dx.doi.org/10.1130/g30175a.1.

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40

Sweet, I. P. "Early proterozoic stream deposits: braided or meandering—evidence from central Australia." Sedimentary Geology 58, no. 2-4 (August 1988): 277–93. http://dx.doi.org/10.1016/0037-0738(88)90073-5.

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41

Ricardo, Nomensen, Hendra Amijaya, and Salahuddin Husein. "Basin Evolution Palispatic Model of Bonaparte Basin, Australia Northwest Shelf." Journal of Applied Geology 2, no. 2 (October 23, 2018): 83. http://dx.doi.org/10.22146/jag.39988.

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This research area is located on the Australian NW Shelf close to the westernedge of the Sahul Platform. This research is aimed to generate the palispatic basin model of Bonaparte Basin, Australian Northwest Shelf. It is to predict the impact of Neogene collision on the petroleum system distribution on Australian Northwest Shelf. The main data used in this research are seismic data using qualitative method analysis. The well data is used to well-seismic tied. After data acquisition, the seismic data are interpreted based on the horizon and structure interpretation. These interpretation are to reconstruct the basin evolution thorough geologic time. According to data analysis, the basin evolution palispatic model are divided into Paleo-proterozoic, Paleozoic, Triassic, Early Jurassic, Middle Jurassic, Late Jurassic, Early Cretaceous, Late Cretaceous, Early Eocene, Late Miocene and Recent condition. Regional tectonically there are at least three important events in NW Shelf: Middle Triassic-Jurassic NNE–SSW extension phase, Late Jurassic NE–SW extension phase and the Neogen collision phase; the Neogen collision effects on Northwest Shelf Australia. These three events contributed in forming and disturbing the Paleozoic and Mesozoic petroleum system in Bonaparte basin especially.

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42

Johnson, Ray, Josh Bluett, Luke Titus, and David Warner. "Exploring and appraising the oldest gas accumulations in Australia." APPEA Journal 53, no. 2 (2013): 470. http://dx.doi.org/10.1071/aj12081.

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In early 2012, Armour Energy set out to evaluate the Middle-Proterozoic formations in the Batten Trough, McArthur Basin, NT. The Batten Trough holds a massive potential shale gas play in the Barney Creek Formation, and recent gas discoveries in the overlying Lynott and Reward formations, and underlying Coxco Dolomite. The Lawn Supersequence, Isa Superbasin, Queensland, is another Middle-Proterozoic shale gas play with overlying and underlying conventional and unconventional oil and gas accumulations. Exploratory drilling between the 1980s and 1990s showed gas and oil shows across the Isa Superbasin, Queensland. Egilabria–1, ATP 1087, exhibited 390 gas units while drilling with mud, highlighting the prospectivity of this area. In both areas, the Barney Creek and Lawn Hill formations are proven source rocks and are significantly older than North American shale reservoirs. In 2012, an innovative exploration program was designed and implemented in the NT to maximise the capture of drilling data while integrating data from previous mineral and petroleum exploration programs. This resulted in gas discoveries at Cow Lagoon–1, EP 176, and in the Glyde–1 and Glyde–1 ST lateral wells in the Glyde Sub-basin in EP171. In both cases, air drilling was instrumental in aiding drilling penetration rates, gauging gas influx while drilling, and allowing geologists to rapidly obtain and assess drill cuttings. The authors first discuss the details of the formation evaluation methods used in Armour’s successful 2012 program and how these methods are extended to Armour’s 2013 program in the Isa Superbasin, northern Queensland. Next, an outline of the strategy for further delineation of the Batten Trough is provided. Finally, the authors summarise the exciting potential of the Lawn Supersequence in Queensland.

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43

Houseman, G. A., J. P. Cull, P. M. Muir, and H. L. Paterson. "Geothermal signatures and uranium ore deposits on the Stuart Shelf of South Australia." GEOPHYSICS 54, no. 2 (February 1989): 158–70. http://dx.doi.org/10.1190/1.1442640.

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An analysis of temperature data from drill holes on the Stuart Shelf of South Australia demonstrates a major thermal anomaly associated with the Olympic Dam copper‐uranium‐gold deposit. The average heat flow on the Stuart Shelf (seven locations, excluding Olympic Dam) is [Formula: see text], but an additional heat flow of approximately [Formula: see text] is present in the sediments overlying the orebody. Although some of the anomalous heat flow appears to be generated in the mid‐Proterozoic basement at depths greater than 1 km, uranium assays indicate that approximately [Formula: see text] can be attributed to concentrations defining the orebody. Major anomalies in heat flow can be readily detected in the flat‐lying cover of Cambrian and late Proterozoic sediments. The Tregolana shale within this sequence is a widespread homogeneous unit, typically 100–200 m thick. It is easily identified on temperature logs by its high thermal gradient relative to other sections in the hole. The heat flow anomaly at Olympic Dam is clearly distinguished by measuring thermal gradients within the Tregolana shale; gradients in the Tregolana shale at Olympic Dam are close to 83 °C/km, with a standard deviation (SD) of 6 °C/km, compared to 51 °C/km (SD = 7 °C/km) elsewhere on the Stuart Shelf.

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44

Pegum, D., and M. Loeliger. "THE LANDER TROUGH—A CENTRAL AUSTRALIAN FRONTIER EXPLORATION AREA." APPEA Journal 30, no. 1 (1990): 128. http://dx.doi.org/10.1071/aj89007.

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The Lander Trough is an almost unexplored area of 30 000 square kilometres in the central western Northern Territory. It has very similar stratigraphy and structural features to the nearby Amadeus, Ngalia and southern Georgina Basins. They all contain fluvio-deltaic to marine sediments of Late Proterozoic to Carboniferous age and were subjected to deformation during several major periods of folding and overthrusting. They are remnants of one depositional basin which covered much of Northern Australia in the Late Proterozoic and Early Palaeozoic Eras. Producing oil and gas fields occur in the Amadeus Basin and there are many oil and gas occurrences in the southern Georgina and Ngalia Basins. The Lander Trough contains up to 3000 metres of largely marine clastic and carbonate sediments which are expected to include mature source rocks and effective reservoirs and seals. Adequate migration paths and trapping mechanisms are believed to be present. The Lander Trough has the potential for commercial petroleum discoveries.

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45

Sprigg, Reg. "On the 1946 Discovery of the Precambrian Ediacabian Fossil Fauna in South Australia." Earth Sciences History 7, no. 1 (January 1, 1988): 46–51. http://dx.doi.org/10.17704/eshi.7.1.p13447q2753jr055.

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The discovery of the Ediacarian metazoan fossil fauna in South Australia on March 27, 1946, by the author represented the culmination of a decade of widespread and diligent search. It was not, as one authority has recorded,…"basically fortuitous." The find was made in the course of widespread mapping of the late Proterozoic-Cambrian succession and followed Sprigg's remapping, remeasurement and redefinition of Howchin's "Adelaide Series" through to the base of the fossiliferous Cambrian succession.

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46

Doughty, P. T., R. A. Price, and R. R. Parrish. "Geology and U-Pb geochronology of Archean basement and Proterozoic cover in the Priest River complex, northwestern United States, and their implications for Cordilleran structure and Precambrian continent reconstructions." Canadian Journal of Earth Sciences 35, no. 1 (January 1, 1998): 39–54. http://dx.doi.org/10.1139/e97-083.

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Precambrian basement rocks exposed within tectonic windows in the North American Cordillera help to define the Precambrian crustal structure of western North America and possible reconstructions of the Late Proterozoic supercontinent Rodinia. New geologic mapping and U-Pb dating in the infrastructure of the Priest River metamorphic complex, northern Idaho, documents the first Archean basement (2651 ± 20 Ma) north of the Snake River Plain in the North American Cordillera. The Archean rocks are exposed in the core of an antiform and mantled by a metaquartzite that may represent the nonconformity between basement and the overlying Hauser Lake gneiss, which is correlated with the Prichard Formation of the Belt Supergroup. A structurally higher sheet of augen gneiss interleaved with the Hauser Lake gneiss yields a U-Pb zircon crystallization age somewhat greater than 1577 Ma. The slivers of augen gneiss were tectonically interleaved with the surrounding Hauser Lake gneiss near the base of the Spokane dome mylonite zone, which arches across this part of the Priest River complex. We conclude that the Spokane dome mylonite zone lies above the Archean basement-cover contact and that it was, in part, equivalent to the basal décollement of the Rocky Mountain fold and thrust belt. New U-Pb dates on metamorphic monazite and xenotime reveal peak metamorphism at ca. 72 Ma, compatible with movement along the Spokane dome mylonite zone at that time. The Archean basement could be interpreted as the western extension of the Hearne province, or a new Archean basement terrane separated from the Hearne province by an Early Proterozoic suture. The unique assemblage of 2.65 Ga basement, ~1.58 Ga felsic intrusive rocks, and the Middle Proterozoic Belt Supergroup can be used as a piercing point for the identification of the conjugate margin to Laurentia. Our new dating supports previous correlations of Australia's Gawler craton (2.55-2.65 Ga) and its 1590 Ma plutons with the Priest River complex basement gneisses. The Priest River complex basement may be a piece of eastern Australia stranded during rifting of the supercontinent Rodina in the Late Proterozoic.

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47

Morrissey, L. J., M. Hand, B. P. Wade, and M. Szpunar. "Early Mesoproterozoic metamorphism in the Barossa Complex, South Australia: links with the eastern margin of Proterozoic Australia." Australian Journal of Earth Sciences 60, no. 8 (December 2013): 769–95. http://dx.doi.org/10.1080/08120099.2013.860623.

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48

Choi, Eunjoo, Marco L. Fiorentini, Andrea Giuliani, Stephen F. Foley, Roland Maas, and Stuart Graham. "Petrogenesis of Proterozoic alkaline ultramafic rocks in the Yilgarn Craton, Western Australia." Gondwana Research 93 (May 2021): 197–217. http://dx.doi.org/10.1016/j.gr.2021.01.011.

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49

Hutchinson, Richard W., and Grant M. Young. "Comment and Reply on "Late Proterozoic stratigraphy and the Canada-Australia connection"." Geology 20, no. 8 (1992): 765. http://dx.doi.org/10.1130/0091-7613(1992)020<0765:carolp>2.3.co;2.

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50

Leven, J. H., and J. F. Lindsay. "Morphology of the Late Proterozoic to Early Palaeozoic Officer Basin, South Australia." Exploration Geophysics 23, no. 1-2 (March 1992): 191–96. http://dx.doi.org/10.1071/eg992191.

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