Cryptic Middle to Late Jurassic marine incursions into northeastern Gondwana: An integrated sedimentological, ichnological and geochronological approach

Foley, Elliot K.; Roberts, Eric M.; Knutsen, Espen M.; Hannaford, Carey

doi:10.1016/j.palaeo.2021.110330

Cited by 4 publications

(5 citation statements)

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“…This contrasts sharply with Jurassic and Early Cretaceous sandstones lower in both the Carpentaria Basin and the wider Great Australian Superbasin succession, which are typically highly quartzose and feldspar poor (e.g. Foley et al, 2020; Foley, Roberts, et al, 2021; Jones & Veevers, 1983) (Figure 9), likely due to a greater degree of recycling of older cratonic sources in these units.…”

Section: Resultsmentioning

confidence: 92%

“…QFL and QmFLt diagrams illustrating the framework grain composition (after Folk, 1980) and the tectonic provenance (after Dickinson et al, 1983) of the sandstones of the Normanton Formation, in addition to those of Jurassic to Lower Cretaceous sandstones previously analysed from lower in the Carpentaria Basin stratigraphic succession (Foley et al, 2020, 2021)…”

Section: Resultsmentioning

confidence: 99%

“…The logging and sampling of each of these cores were conducted at the Geological Survey of Queensland (GSQ) core facility located at the Exploration Data Centre in Brisbane, Queensland, Australia. The facies analysis scheme utilised on GSQ Dobbyn 1 (Figure 4), GSQ Normanton 1 (Figure S1) and GSQ Rutland Plains 1 (Figure S2) follows the framework of Wainman and McCabe (2019) and Foley, Roberts, et al (2021), employing colour codes to denote seven individual sedimentary facies, and subsequently grouping these to create three facies associations (FAs) (Tables 1 and 2). Delhi‐Santos Mornington Island 1 was not logged as only a short interval (ca.…”

Section: Datasets and Methodologymentioning

confidence: 99%

“…The superbasin has been the subject of several studies incorporating U‐Pb detrital zircon geochronology for sediment provenance and palaeogeographic reconstructions in recent years (e.g. Foley et al, 2020, 2021; Tucker et al, 2016). From the Early to mid‐Cretaceous (Aptian to Cenomanian/Turonian), the superbasin and much of eastern Australia was covered by the shallow Eromanga Sea (Figure 1b) (Frakes et al, 1987), and vast volumes (>1 × 10 6 km 3 ) of volcanogenic, shallow marine mudstones, siltstones and sandstones were deposited (Bryan et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Bottom right: major constituent basins of the Great Australian Superbasin. Modified after Foley et al (2021)…”

Section: Introductionmentioning

confidence: 99%

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Deciphering Late Cretaceous palaeo‐river catchments in eastern Australia: Recognition of distinct northern and southern drainage basins

2021

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During the Early Cretaceous, Australia was flooded by the epicontinental Eromanga Sea, deposits of which occur across the Great Australian Superbasin. However, the mid‐Cretaceous retreat of this shallow sea, and the resultant palaeogeographic and sediment distribution patterns, are poorly understood. This study chronicles the Eromanga Sea's northward regression through the Carpentaria Basin as captured in the sedimentary record of the Normanton Formation. We achieve this by integrating sedimentary facies analysis of cores from across the Carpentaria Basin with palynology, sandstone petrography and U‐Pb detrital zircon geochronology. Results indicate that the Normanton Formation was deposited between ca. 100 and 96 Ma, and that it represents a large, northward‐prograding, likely river‐dominated delta system. The unit's volcanoclastic nature is exhibited through abundant lithic volcanics and devitrified glass, with a prominent, near‐depositional detrital zircon population attributed to a proximal continental magmatic arc‐derived source hypothesised to parallel the eastern seaboard of Australia at this time. The Normanton Formation is temporally correlative with the lower‐middle portions of the similarly volcanoclastic Winton Formation in the Eromanga Basin, which drained southwards into the Cenomanian‐Santonian Ceduna River Delta system. However, Normanton Formation strata display subtly different provenance signatures and drainage patterns, indicating input from similar, but likely more northern source terrains than much of the contemporaneous Winton Formation. These sediments were unlikely recycled southwards into the Ceduna Delta like those of the Winton Formation; rather they drained northward following the retreat of the Eromanga Sea through the Carpentaria Basin, indicating a Cretaceous drainage divide between two river systems, with distinct northern and southern drainage catchments. The mid‐Cretaceous palaeogeography of eastern Australia is analogous to that of the Late Cretaceous Western Interior Seaway of North America, in which the retreat of a shallow epicontinental sea is marked by the rapid deposition and progradation of multiple large, geographically distinct clastic wedges.

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Section: Resultsmentioning

confidence: 92%