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Добірка наукової літератури з теми "Adelaidean sedimentation"

Автор: Grafiati
Опубліковано: 10 грудня 2022
Оновлено: 28 січня 2023

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Статті в журналах з теми "Adelaidean sedimentation"

1

Griffiths, Chris J., and Richard D. J. Oglethorpe. "The stratigraphy and geochronology of Adelaide Island." Antarctic Science 10, no. 4 (December 1998): 462–75. http://dx.doi.org/10.1017/s095410209800056x.

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The Mesozoic-Cenozoic volcanic arc of the Antarctic Peninsula is represented on Adelaide Island by a sedimentary and volcanic succession intruded by plutons. 40Ar-39 Ar step-heating age spectra have been obtained from volcanic rocks and hornblende separates from sedimentary clasts of plutonic origin. These spectra show evidence for some argon loss, but, in general, have plateau ages which are consistent with the mapped stratigraphy and with other geochronological controls, suggesting that they approximate to original ages. As a result the following events in the evolution of Adelaide Island can be recognized:1) mostly marine Mesozoic sedimentation, 2) Early Cretaceous (c. 141 Ma) plutonism (recorded in clasts from conglomerates), 3) Cretaceous volcanism, 4) Late Cretaceous (possibly Tertiary) sedimentation, 5) Early Tertiary volcanism, which was acidic in eastern outcrops and intermediate elsewhere, and 6) Eocene intermediate volcanism and deposition of arc-derived conglomerates. Volcanism was possibly coeval with known Palaeocene-Eocene plutonic activity on Adelaide Island (part of the Antarctic Peninsula Batholith) and with volcanism of similar age in northern Alexander Island and the South Shetland Islands. The volcanism on Adelaide Island and the South Shetland Islands, at least, was associated with a westward migration of the Antarctic Peninsula arc.
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2

Walter, M. R. "The Adelaide Geosyncline: Late proterozoic stratigraphy, sedimentation, palaeontology and tectonics." Precambrian Research 49, no. 3-4 (February 1991): 373–74. http://dx.doi.org/10.1016/0301-9268(91)90042-9.

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3

LEITCH, E. "The Adelaide Geosyncline: Late proterozoic stratigraphy, sedimentation, palaeontology and tectonics." Earth-Science Reviews 27, no. 4 (June 1990): 370–71. http://dx.doi.org/10.1016/0012-8252(90)90059-5.

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4

Lloyd, Jarred C., Alan S. Collins, Morgan L. Blades, Sarah E. Gilbert, and Kathryn J. Amos. "Early Evolution of the Adelaide Superbasin." Geosciences 12, no. 4 (March 29, 2022): 154. http://dx.doi.org/10.3390/geosciences12040154.

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Continental rifts have a significant role in supercontinent breakup and the development of sedimentary basins. The Australian Adelaide Superbasin is one of the largest and best-preserved rift systems that initiated during the breakup of Rodinia, yet substantial challenges still hinder our understanding of its early evolution and place within the Rodinian supercontinent. In the past decade, our understanding of rift and passive margin development, mantle plumes and their role in tectonics, geodynamics of supercontinent breakup, and sequence stratigraphy in tectonic settings has advanced significantly. However, literature on the early evolution of the Adelaide Superbasin has not been updated to reflect these advancements. Using new detrital zircon age data for provenance, combined with existing literature, we examine the earliest tectonic evolution of the Adelaide Superbasin in the context of our modern understanding of rift system development. A new maximum depositional age of 893 ± 9 Ma from the lowermost stratigraphic unit provides a revised limit on the initiation of sedimentation and rifting within the basin. Our model suggests that the basin evolved through an initial pulse of extension exploiting pre-existing crustal weakness to form half-grabens. Tectonic quiescence and stable subsidence followed, with deposition of a sourceward-shifting facies tract. Emplacement and extrusion of the Willouran Large Igneous Province occurred at c. 830 Ma, initiating a new phase of rifting. This rift renewal led to widespread extension and subsidence with the deposition of the Curdimurka Subgroup, which constitutes the main cyclic rift sequence in the Adelaide Superbasin. Our model suggests that the Adelaide Superbasin formed through rift propagation to an apparent triple junction, rather than apical extension outward from this point. In addition, we provide evidence suggesting a late Mesoproterozoic zircon source to the east of the basin, and show that the lowermost stratigraphy of the Centralian Superbasin, which is thought to be deposited coevally, had different primary detrital sources.
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Дисертації з теми "Adelaidean sedimentation"

1

Haines, Peter W. "Carbonate shelf and basin sedimentation, late Proterozoic Wonoka Formation, South Australia /." Title page, contents and summary only, 1987. http://web4.library.adelaide.edu.au/theses/09PH/09phh152.pdf.

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2

Watanasak, Manas. "Mid-tertiary palynology of onshore and offshore Thailand /." Title page, contents and abstract only, 1988. http://web4.library.adelaide.edu.au/theses/09PH/09phm267.pdf.

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3

Oghenekome, Monica Enifome. "Sedimentary environments and provenance of the Balfour Formation (Beaufort Group) in the area between Bedford and Adelaide, Eastern Cape Province, South Africa." Thesis, University of Fort Hare, 2012. http://hdl.handle.net/10353/d1004354.

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The research examines the sedimentary environments and provenance of the Balfour Formation of the Beaufort Group (Karoo Supergroup) in the Eastern Cape Province, South Africa. This Formation occurs in the southeastern part of the Karoo Basin. It consists of sedimentary rocks, which are an alternating siltstone, shale and mudstone succession with subordinate interbedded sandstone and subsequently intruded by Karoo dolerite in the form of sills and dykes. ithostratigraphically, the Balfour Formation is subdivided into five units namely, from the base to the top, the Oudeberg, Daggaboersnek, Barberskrans, Elandsberg and Palingkloof Members. The Balfour Formation is overlain by the Katberg Formation. This study involved field investigations in the vicinity of the towns of Bedford and Adelaide with integrated stratigraphical, sedimentological and petrological studies. A geological map was constructed after field investigations. Lithofacies of the Balfour Formation that were studied are characterised by sandstone facies (Sh, Sm, St, Sr, Sp) and fine-grained sediments (Fl or Fsm) which reflect point-bar, cut-bank, channel and floodplain deposits. Lithologically, the Oudeberg Member consists of sandstone of which some units are internally massive alternating with thin laminated siltstone and mudstone. The Daggaboersnek Member is characterised by regular, generally non-lenticular, overall stratification, in the Barberkrans Member consists of sandstone lithosomes, while the Elandsberg Member is an argillaceous unit, similar to the Daggaboersnek Member. The Palingkloof Member is composed predominantly of red mudstone that can be used to distinguish the Balfour Formation from the overlying Katberg Formation, which consists predominantly of sandstone. The stratigraphic sequence displays two fining upward megacycles of sedimentary deposits with change in the sediment supply pattern from low-sinuosity to high-sinuosity river systems which reflect both braid and meandering deposits, respectively. Sedimentary structures in the sandstone units and the provenance of the Balfour Formation indicate that these deposits were produced by rivers flowing from the southeast with minor drift towards the northwest. According to the composition of the sediments and their sequence of deposition the Formation represents a fluvial environment. Mineralogical and grain size data from the sandstones of the various members of the Balfour Formation indicate the same source area of granitic, metamorphic and older sedimentary rocks and show no significant petrographic differences. The petrographic and geochemical investigations confirmed the sandstone to be feldspathic litharenite and ultralithofeldspathic sandstone. The palaeocurrent investigation indicates the main provenance to have been situated to the southeast of the Karoo basin. Heavy-mineral concentrations within the sandstones also give an indication that the source had a transitional arc plate tectonic setting.
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4

Cubitt, Chris. "Controls on reservoir development and quality in a glacial sequence; a study of the late palaeozoic, Cooper Basin South Australia and Queensland, Australia : thesis submitted to the University of Adelaide in fullfillment [sic] of the requirement for the Degree of Doctor of Philosophy, July 2000." Title page, contents and abstract only, 2000. http://web4.library.adelaide.edu.au/theses/09PH/09phc962.pdf.

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At head of title: National Centre for Petroleum Geology and Geophysics. CD-ROM contains Appendices (1-10) in PDF. Includes copies of papers co-authored by the author. Includes bibliographical references (leaves [471]-499 in vol. 2) Studies the provenance and diagenesis of the Merrimelia Formation in South Australia and Queensland; a complex mosaic of glacial facies in which the Tirrawarra Sandstone and Merrimelia Formation exhibit an interfingering relationship, and defines the relationship further. Indicates that the Tirrawarra Sandstone should be included in the Merrimelia Formation as a "facies type" as both the Merrimelia and Tirrawarra sediments form an integrated suite of sediments. System requirements for accompanying CD-ROM: Macintosh or IBM compatible computer with Windows NT. Other requirements: Adobe Acrobat Reader.
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5

Jansyn, J. "Strato-tectonic evolution of a large subsidence structure associated with the late Proterozoic Wonoka Formation at Wilpena Pound, central Flinders Ranges, South Australia." Thesis, 1990. http://hdl.handle.net/2440/86719.

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This item is only available electronically.
The coincidence between the timing of the subsidence of a trough-like structure adjacent to Wilpena Pound and the initiation of canyons associated with the late Proterozoic Wonoka Formation in other parts of the Flinders Ranges provides circumstantial but not necessarily compelling evidence for a tectonic control being involved with the formation of the canyons. The trough, here termed The Wilpena Trough, is characterised by the presence of a deep central sag and shoulder sags bounded by steep north-easterly trending faults. Other canyons may have marginal faults; and the numerous reversals of current indicators within them, rather than simple unidirectional current trends as expected with turbidite erosion, substantiate a tectonic influence in their generation. Small scale faulting in the Wearing Dolomite Member of the Wonoka Formation reflects the dominantly extensional regime in which the Wilpena Trough was formed. A phase of warping prior to deposition of the Wonoka Formation may have provided the necessary trigger to produce stress zones in strata, where growth faults controlling the sedimentation in the Wilpena Trough were initiated. After deposition of the Wearing Dolomite Member in a shallow water palaeoenvironment, Units 2 and 3 of the Wonoka Formation were deposited in deeper water settings on a shelfal slope. This idea supports a submarine environment prior to subsidence of the Trough. Measured stratigraphic thickness changes give a precise timing for the initiation of fault movement that caused thickened packages of sediments. Major fault movement and corresponding sediment subsidence became active near the Unit 2/Unit 3 transition and dominated the deposition of Unit 3 through to Unit 7. Units 4 to 9 represent a wedge of prograding shelf sediments. Unit 10 is a shallow transgressional sequence and a sequence boundary has been proposed of the base of this unit, due to the marked change in sedimentary style. Stable carbon and oxygen isotope data from the sediments of the Wonoka Formation in the central Flinders Ranges shows an initial low negative plot which is succeeded by an interval showing a strong negative excursion which then makes a shift back to low negative values. A possible correlation between the late Proterozoic units in the Adelaide Fold Belt and the eastern Officer Basin enables the data from the Wonoka Formation to be added to information which Pell (1989) obtained from the Rodda Beds to show a continuous trend from the negative excursion to a broad positive one. Comparison with the corresponding overseas data provides a potential tool for late Proterozoic inter-regional basin correlation.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Earth and Environmental Sciences, 1990
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6

Haines, Peter W. "Carbonate shelf and basin sedimentation, late Proterozoic Wonoka Formation, South Australia." Thesis, 1987. http://hdl.handle.net/2440/21574.

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Five folded ill. in pocket; Bibliography: leaves 141-152; ix, 152, 12 leaves, [17] leaves of plates : ill. (some col.) ; 31 cm.
Thesis (Ph.D.) -- University of Adelaide, Dept. of Geology and Geophysics, 1987
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7

Cubitt, Chris, and National Centre for Petroleum Geology &amp Geophysics (Australia). "Controls on reservoir development and quality in a glacial sequence; a study of the late palaeozoic, Cooper Basin South Australia and Queensland, Australia : thesis submitted to the University of Adelaide in fullfillment [sic] of the requirement for the Degree of Doctor of Philosophy, July 2000 / Chris Cubitt." 2000. http://hdl.handle.net/2440/21707.

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Анотація:
At head of title: National Centre for Petroleum Geology and Geophysics.
CD-ROM contains Appendices (1-10) in PDF.
Includes copies of papers co-authored by the author.
Includes bibliographical references (leaves [471]-499 in vol. 2)
System requirements for accompanying CD-ROM: Macintosh or IBM compatible computer with Windows NT. Other requirements: Adobe Acrobat Reader.
2 v. (various pagings) : ill. (some col.), maps, ports. ; 30 cm. + 1 CD-ROM (4 3/4 in.)
Title page, contents and abstract only. The complete thesis in print form is available from the University Library.
Studies the provenance and diagenesis of the Merrimelia Formation in South Australia and Queensland; a complex mosaic of glacial facies in which the Tirrawarra Sandstone and Merrimelia Formation exhibit an interfingering relationship, and defines the relationship further. Indicates that the Tirrawarra Sandstone should be included in the Merrimelia Formation as a "facies type" as both the Merrimelia and Tirrawarra sediments form an integrated suite of sediments.
Thesis (Ph.D.)--University of Adelaide, Dept. of Geology, 2000?
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8

Cubitt, Chris, and National Centre for Petroleum Geology &amp Geophysics (Australia). "Controls on reservoir development and quality in a glacial sequence; a study of the late palaeozoic, Cooper Basin South Australia and Queensland, Australia : thesis submitted to the University of Adelaide in fullfillment [sic] of the requirement for the Degree of Doctor of Philosophy, July 2000 / Chris Cubitt." Thesis, 2000. http://hdl.handle.net/2440/21707.

Повний текст джерела
Анотація:
At head of title: National Centre for Petroleum Geology and Geophysics.
CD-ROM contains Appendices (1-10) in PDF.
Includes copies of papers co-authored by the author.
Includes bibliographical references (leaves [471]-499 in vol. 2)
System requirements for accompanying CD-ROM: Macintosh or IBM compatible computer with Windows NT. Other requirements: Adobe Acrobat Reader.
2 v. (various pagings) : ill. (some col.), maps, ports. ; 30 cm. + 1 CD-ROM (4 3/4 in.)
Studies the provenance and diagenesis of the Merrimelia Formation in South Australia and Queensland; a complex mosaic of glacial facies in which the Tirrawarra Sandstone and Merrimelia Formation exhibit an interfingering relationship, and defines the relationship further. Indicates that the Tirrawarra Sandstone should be included in the Merrimelia Formation as a "facies type" as both the Merrimelia and Tirrawarra sediments form an integrated suite of sediments.
Thesis (Ph.D.)--University of Adelaide, Dept. of Geology, 2000?
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Книги з теми "Adelaidean sedimentation"

1

V, Preiss W., ed. The Adelaide geosyncline: Late Proterozoic stratigraphy, sedimentation, palaeontology and tectonics. SouthAustralia: D.J. Woolman, 1987.

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2

The Adelaide geosyncline: Late Proterozoic stratigraphy, sedimentation, palaeontology and tectonics. [Adelaide]: D. J. Woolman, 1987.

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