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Shuram-Wonoka Event

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Journal Article
Published: 01 March 2008
Geological Magazine (2008) 145 (2): 161–172.
... primary nature (−7.9 ± 1.2 ‰ on average, n = 93) makes the Leivset marble unique. This, together with a high Sr content (up to 8740 ppm) that buffered 87 Sr/ 86 Sr ratios between 0.70802 and 0.70872, suggests correlation with the worldwide ShuramWonoka isotopic event occurring within the 600–550 Ma time...
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Journal Article
Published: 01 January 2009
Journal of the Geological Society (2009) 166 (1): 129–135.
... is a 700–900 m thick marble unit with values of −9‰ to −11‰ and is interpreted as recording the late Neoproterozoic ShuramWonoka event. These correlations permit linking the Shetland succession to Neoproterozoic sections elsewhere and also show that rift-related rocks in Shetland post-date the Shuram...
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Journal Article
Published: 01 October 2020
Russ. Geol. Geophys. (2020) 61 (10): 1121–1135.
... of the ShuramWonoka event. As follows from the data obtained, the age of the basement of the Taseeva Group is no older than 600 Ma. This provides a more accurate correlation of the Vendian complex along the southwestern margin of the Siberian Platform. The different stratigraphic scales of the sediments...
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Journal Article
Published: 01 January 2009
Journal of the Geological Society (2009) 166 (1): 183–191.
... sequences reveal a facies-independent, upward rise in marine δ 13 C carb from −12‰ to −7‰. The trend and magnitude of the values mimic those that are characteristic of the 600–550 Ma ShuramWonoka isotope event. A coincident stratigraphic rise in 87 Sr/ 86 Sr from 0.70802 to 0.70862 in several sections...
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Journal Article
Journal: GSA Bulletin
Published: 01 July 2011
GSA Bulletin (2011) 123 (7-8): 1539–1559.
... in profiles through the Wonoka Formation in South Australia (which lies above the basal Ediacaran global stratotype section and point) and the Shuram-Buah interval in Oman, confirming temporal correlation and suggesting genesis through changes in the isotopic composition of the global ocean. The Shuram...
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Journal Article
Journal: Geology
Published: 01 April 2014
Geology (2014) 42 (4): 323–326.
... an intensified weathering event triggered by elevated CO 2 levels and transient greenhouse climatic conditions at the termination of Ediacaran glaciations, or possibly the Ediacaran Shuram-Wonoka isotope event. * E-mail: sirle.liivamagi@ut.ee . 17 10 2013 14 01 2014 19 01 2014 © 2014...
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Journal Article
Published: 01 September 2009
Journal of the Geological Society (2009) 166 (5): 845–857.
... al . 2008 ); (3) the late Neoproterozoic WonokaShuram anomaly ( Burns & Matter 1993 ; Calver 2000 ; McKirdy et al . 2001 ; Fike et al . 2006 ; Le Guerroué et al . 2006 ; Rieu et al . 2007 ). Our data provide, for the first time, globally comparative C-isotope events through...
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Journal Article
Journal: Geology
Published: 01 June 2017
Geology (2017) 45 (6): 567–570.
... our last sample from the Wonoka Formation. Our extrapolated estimate for the duration of the full Shuram Excursion is 8.0 ± 0.5 m.y., which is in excellent agreement with the astrochronologic estimate from Death Valley ( Minguez et al., 2015 ). Two or more oriented block samples...
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Journal Article
Published: 07 July 2014
Journal of the Geological Society (2014) 171 (5): 709–722.
...Gregory J. Retallack; André Marconato; Jeffery T. Osterhout; Kathryn E. Watts; Ilya N. Bindeman Abstract The global Late Ediacaran ShuramWonoka carbon isotope anomaly has been regarded as the largest and longest known isotopic anomaly in the ocean, assuming that all Ediacaran carbonate is marine...
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Journal Article
Published: 28 October 2021
Journal of the Geological Society (2021) jgs2021-081.
... to the Shuram oxygenation event. Supplementary material: SEM and EDS data and figures S1-S4 and tables S1-S3 are available at: https://doi.org/10.6084/m9.figshare.c.5602560 Thematic collection: This article is part of the ‘Sulfur in the Earth system’ collection available at: https://www.lyellcollection.org/cc...
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Journal Article
Published: 18 September 2018
Canadian Journal of Earth Sciences (2018) 55 (11): 1253–1261.
... with the Marinoan glaciation ( Halverson et al. 2005 ; Rice et al. 2011 ). Furthermore, low δ 13 C values in the Nyborg and Mortensnes formations have been compared to those of the ShuramWonoka anomaly ( Rice et al. 2011 ), in most models with a nadir at about 580 Ma (see Xiao et al. 2016 ). Other scenarios...
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Journal Article
Journal: Geology
Published: 27 April 2020
Geology (2020) 48 (7): 708–712.
... to be restricted to the interval between the uppermost Cryogenian glacial deposits and the largest-known carbon isotope excursion in Earth’s history, the Shuram event. The mid-Ediacaran disappearance of the acanthomorphs was puzzling until they were discovered in younger strata in south China, in northwestern...
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Chemostratigraphic trends through the study interval. ( a – d ) Geochemical...
Published: 01 January 2009
the correlated flooding surface. ( e ) Detailed δ 13 C profile through the Ediacaran (after Fike et al . 2006 ) showing the limits of the ShuramWonoka isotopic event (black arrows); the pink bar shows the δ 13 C range of the low- 13 C Siberian limestones, whereas pink arrows show the apparent age projection
Image
Chemostratigraphic correlation of Vendian successions from the Ura Uplift (...
Published: 01 June 2018
–Daldynian Stage; Tm, Tommotian Stage. Sh-W, ShuramWonoka δ 13 C event. Other symbols as in Figs. 3 – 5 .
Journal Article
Journal: Geology
Published: 01 November 2008
Geology (2008) 36 (11): 863–866.
... depleted carbon isotope values. Carbonates from the extensive Permian lacustrine systems of southwest Gondwana have values as low as −20‰ PDB ( Faure and Cole, 1999 ). Highly negative isotope values observed in the Ediacaran Wonoka Formation of South Australia, commonly correlated with the Shuram ( Le...
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Journal Article
Published: 01 June 2018
Russ. Geol. Geophys. (2018) 59 (6): 585–605.
...–Daldynian Stage; Tm, Tommotian Stage. Sh-W, ShuramWonoka δ 13 C event. Other symbols as in Figs. 3 – 5 . ...
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Journal Article
Journal: Geosphere
Published: 14 August 2018
Geosphere (2018) 14 (5): 2245–2276.
..., the Shuram negative carbon isotopic excursion occurs within the Rainstorm Member near the top of the Johnnie Formation, followed by a remarkable valley incision event. At its type locality in the northwest Spring Mountains, Nevada, the Johnnie lithostratigraphy consists of three distinctive sand-rich...
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Journal Article
Published: 01 October 2018
Geochemical Perspectives (2018) 7 (2): 130–141.
... the samples with anomalously low δ 13 C values have anomalous δ 44 Ca and Sr to Ca ratios. For example, samples from the Wonoka event with δ 13 C values ranging down to −12 ‰ have no significant calcium isotope or strontium anomalies. But based on their very high manganese content, he suggests...
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Journal Article
Published: 01 April 2015
Russ. Geol. Geophys. (2015) 56 (4): 584–593.
... carbon isotope Shuram-Wonoka Event (Kochnev and Pok-rovsky, 2014). In the middle section of the Parshino Formation, the deposits are characterized by δ 13 C values close to zero; thus, the negative δ 13 C excursion is within the values of the Upper Nepa Subhorizon. The age of the Shuram-Wonoka Event...
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Journal Article
Journal: Geology
Published: 24 January 2018
Geology (2018) 46 (3): 267–270.
... , X.M. , 2017 , Was the Ediacaran Shuram Excursion a globally synchronized early diagenetic event? Insights from methane-derived authigenic carbonates in the uppermost Doushantuo Formation, South China : Chemical Geology , v. 450 , p. 59 – 80 , https://doi.org/10.1016/j.chemgeo.2016.12.010...
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