Chemostratigraphy and palaeo-environmental characterisation of the Cambrian stratigraphy in the Amadeus Basin, Australia

Schmid, Susanne

doi:10.1016/j.chemgeo.2017.01.019

Cited by 26 publications

(23 citation statements)

References 48 publications

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“…The SPICE event has been marked, in some earlier studies of carbonate sections from basins on different palaeocontinents, by an isolated individual positive δ 13 C shift (e.g. Brasier, 1993;Saltzman et al 2000Saltzman et al , 2004Glumac & Mutti, 2007;Hurtgen et al 2009;Fan et al 2011;Gill et al 2011;Schmid, 2011;Woods et al 2011;Dahl et al 2014) that was globally correlated based on changes in trilobite biozones (Fig. 6).…”

Section: B Carbon-isotope Stratigraphymentioning

confidence: 85%

Carbon-isotope stratigraphy of the SPICE event (Upper Cambrian) in eastern Laurentia: implications for global correlation and a potential reference section

Azmy

2018

Geol. Mag.

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The δ13C profile from the lower interval of the Martin Point section in western Newfoundland (Canada) spans the Upper Cambrian (uppermost Franconian – lowermost Trempealeauan). The investigated interval (∼110 m) is a part of the Green Point Formation of the Cow Head Group and consists of the upper part of the Tucker Cove Member (topmost part of the Shallow Bay Formation) and the lowermost part of the Martin Point Member (bottom of the Green Point Formation). It is formed of rhythmites of marine carbonates alternating with shales and minor conglomeratic interbeds. Multiscreening petrographic and geochemical techniques have been utilized to evaluate the preservation of the investigated lime mudstones. The δ13C and δ18O values of the sampled micrites (−4.8 ‰ to +1.0 ‰ VPDB and −8.2 ‰ to −5.3 ‰ VPDB, respectively) have insignificant correlation (R2= 0.01), as similarly do the δ13C values with their Sr counterparts (R2= 0.07), which supports the preservation of at least near-primary δ13C signatures that can be utilized to construct a reliable high-resolution carbon-isotope profile for global correlations. The δ13C profile exhibits two main negative excursions: a lower excursion (∼4 ‰) that reaches its maximum at the bottom of the section and an upper narrow excursion (∼6 ‰) immediately above the boundary of the Tucker Cove/Martin Point members (Shallow Bay Formation – Green Point Formation boundary). The lower excursion may be correlated with the global SPICE event, whereas the upper excursion may match with a post-SPICE event that has been also recognized in profiles of equivalent sections on different palaeocontinents.

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Section: B Carbon-isotope Stratigraphymentioning

confidence: 85%

Carbon-isotope stratigraphy of the SPICE event (Upper Cambrian) in eastern Laurentia: implications for global correlation and a potential reference section

Azmy

2018

Geol. Mag.

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“…The formation of the CS around 800 Ma is most likely attributable to crustal sag in response to the uplift and subsequent decline from superplume activity beneath the Australian cratons generating large volumes of clastic material (Lindsay, 2002). Compressional dynamics prevailed in the Neoproterozoic and the CS was restructured into a series of largely independent foreland basins separated by uplifted basement blocks (Munson et al, 2013;Schmid, 2017). The CS is infilled with a succession of Neoproterozoic -Palaeozoic sediments, mostly sandstones and carbonates that provide an excellent record of metazoan radiation in the early Cambrian (Lindsay et al, 2005;Creveling et al, 2014).…”

Section: Palaeo-environmentmentioning

confidence: 99%

Was the Kalkarindji continental flood basalt province a driver of environmental change at the dawn of the Phanerozoic?

Marshall¹,

Faggetter²,

Widdowson³

2022

Preprint

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“…fluctuations in oceanic redox, nutrient cycling and the rate of organic matter burial (Halverson et al 2009). Additionally, interpretation of carbon isotope curves without robust supporting data can result in controversial age assessments (see Landing and Kruse 2017;Smith et al, 2016;2017). Hence, demonstration of the reliability of chemostratigraphic data requires coupling with other robust proxies for time or accurate radiometric dates where possible.…”

Section: Reliability Of Chemostratigraphymentioning

confidence: 99%

“…8G). The incoming of vertical burrowing is now taken as an important bilaterian evolutionary innovation characteristic of Cambrian Stage 2 (Mángano and Buatois, 2014;2017).…”

Section: Wang and Wang-smentioning

confidence: 99%

“…The application of carbon isotope chemostratigraphy throughout the Cambrian is now well established (e.g. Brasier et al, 1992;Chang et al, 2017;Cremonese et al, 2014;Ishikawa et al, 2014;Maloof et al, 2005, 2010a,b andreferences therein;Schmid, 2017;Smith, et al, 2016). This method is recognised as an effective correlation tool because carbon isotopes are relatively resistant to diagenetic alteration, and provides a global signal that can temporally constrain endemic faunas and regional biostratigraphic schemes, especially in pretrilobitic lower Cambrian packages.…”

Section: Introductionmentioning

confidence: 99%

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Early Cambrian chronostratigraphy and geochronology of South Australia

Betts

Paterson

Jacquet

et al. 2018

Earth-Science Reviews

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The most successful chronostratigraphic correlation methods enlist multiple proxies such as biostratigraphy and chemostratigraphy to constrain the timing of globally important bio-and geo-events. Here we present the first regional, high-resolution shelly fossil biostratigraphy integrated with  13 C chemostratigraphy (and corresponding  18 O data) from the lower Cambrian of South Australia. The global ZHUCE, SHICE, positive excursions II and III and the CARE are captured in lower Cambrian successions from the Arrowie and Stansbury basins. The South Australian shelly fossil biostratigraphy has a consistent relationship with the δ 13 C results, bolstering interpretation, identification and correlation of the excursions. Positive excursion II straddles the boundary between the Kulparina rostrata and Micrina etheridgei zones, and the CARE straddles the boundary between the M. etheridgei and Dailyatia odyssei zones, peaking in the lower parts of the latter zone. New 3 CA-TIMS zircon dates from the upper Hawker Group and Billy Creek Formation provide calibration points for the upper D. odyssei Zone and corresponding chemostratigraphic curve, embedding the lower Cambrian successions from South Australia into a global chronostratigraphic context. This multi-proxy investigation demonstrates the power of integrated multi-proxy methods for global correlation of regional biostratigraphic schemes, facilitating robust global correlation of lower Cambrian successions from South Australia with coeval terranes on other Cambrian palaeocontinents, including South and North China, Siberia, Laurentia, Avalonia and West Gondwana.

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Chemostratigraphy and palaeo-environmental characterisation of the Cambrian stratigraphy in the Amadeus Basin, Australia

Cited by 26 publications

References 48 publications

Carbon-isotope stratigraphy of the SPICE event (Upper Cambrian) in eastern Laurentia: implications for global correlation and a potential reference section

Carbon-isotope stratigraphy of the SPICE event (Upper Cambrian) in eastern Laurentia: implications for global correlation and a potential reference section

Was the Kalkarindji continental flood basalt province a driver of environmental change at the dawn of the Phanerozoic?

Early Cambrian chronostratigraphy and geochronology of South Australia

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