A negative carbon isotope excursion defines the boundary from Cambrian Series 2 to Cambrian Series 3 on the Yangtze Platform, South China

Guo, Qianqian; Strauß, Harald; Liu, Cong‐Qiang; Zhao, Yuanlong; Yang, Xiaoguang; Jin, Peng; Yang, Hong

doi:10.1016/j.palaeo.2009.11.005

Cited by 55 publications

(85 citation statements)

References 22 publications

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“…This phenomenon was found to be coupled with the negative carbon isotope excursion for marine carbonate during the same period (Andrusevich et al, 1998;Guo et al, 2010;Guerroué , 2010;Howley and Jiang, 2010 (Wang and Song, 2002). The change of carbon isotope composition in organic matter supplies a potential method to distinct source rocks and oils.…”

Section: Selection Of the End Member Oilsmentioning

confidence: 95%

Geochemical quantification of mixed marine oils from Tazhong area of Tarim Basin, NW China

Tian

Yang

Liao

et al. 2012

Journal of Petroleum Science and Engineering

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Section: Selection Of the End Member Oilsmentioning

confidence: 95%

Geochemical quantification of mixed marine oils from Tazhong area of Tarim Basin, NW China

Tian

Yang

Liao

et al. 2012

Journal of Petroleum Science and Engineering

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“…However, recent data on C-, O-and Sr-isotopes exist for the traditional Lower-Middle Cambrian boundary interval in the Cantabrian Mountains, Iberia (Wotte et al 2007), for the Lower-Middle Cambrian boundary interval on the Yangtze Platform (Guo et al 2010), and for parts of Laurentia (Montañez et al 2000).…”

Section: Isotopic Signaturesmentioning

confidence: 99%

The Henson Gletscher Formation, North Greenland, and its bearing on the global Cambrian Series 2–Series 3 boundary

Geyer¹,

Peel²

2011

Bull. Geosci.

130

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The Henson Gletscher Formation of North Greenland yields moderately diverse trilobite faunas which bracket the Cambrian Series 2-Series 3 boundary interval. A number of the trilobite taxa permit correlation into other parts of Laurentia and to other Cambrian continents, thus enhancing correlation within this stratigraphical interval of the traditional Lower-Middle Cambrian boundary. In particular, the occurrence of Ovatoryctocara granulata and O. yaxiensis substantially improves the intercontinental recognition of the O. granulata level, a prime GSSP candidate. In contrast, the level with Oryctocephalus indicus cannot be located in a number of Cambrian continents with sufficient precision, making this level unsuitable for the definition of a GSSP for the base of the Cambrian Series 3 and Stage 5. Further support for the correlation potential of the base of the range of Ovatoryctocara granulata comes from recent carbon isotope studies that indicate a striking negative excursion in sections of South China (ROECE event) that probably coincides with similar excursions in Laurentia. Four new trilobite species are described: Zacanthopsis blakeri sp. nov., Protoryctocephalus arcticus sp. nov., Eoptychoparia pearylandica sp. nov. and Onchocephalus? freucheni sp. nov.

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“…The Kaili Formation is inturpeted to be a 3 rd order cycle with the maximum flooding surface located at or near the FAD of O. indicus (Wang et al 2006, Lin 2009. In addition, a negative carbon isotopic excursion occurs within 4 m below the FAD of O. indicus (Yang et al 2003;Guo et al 2005Guo et al , 2010; Lin 2009Lin , 2010Lin , 2011.…”

mentioning

confidence: 99%

Detailed trilobite biostratigraphy across the proposed GSSP for Stage 5 (“Middle Cambrian” boundary) at the Wuliu-Zengjiayan section, Guizhou, China

Sundberg¹,

Zhao²,

Yuan³

et al. 2011

Bull. Geosci.

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Quarrying across a potential GSSP of the base of Cambrian Stage 5/Series 3 at the Wuliu-Zengjianyan section in south China indicates a significant change in trilobite and brachiopod faunas. The Wuliu Quarry spans approximately 4.5 m across the potential boundary, which is the FAD of Oryctocephalus indicus (Reed, 1910) in the Wuliu-Zengjiayan section of the Kaili Formation. Trilobite taxa found consist of one Pagetia, one Redlichia, one Burlingia, two Olenoides, eleven oryctocephalid, and seven ptychopariid species. Non-trilobite taxa found in the Wuliu Quarry, but not described in this publication, include tubular shells, inarticulate and articulate brachiopods, molluscs, echinoderm plates, sponges, algae, acritarchs, and trace fossils. Collected specimens display both flattening, secondary calcite preservation, and tectonic distortion. Many of the species have previously been based on length to width ratios. Given the range of morphologies demonstrated in these collections, several previously named species have been synonymized. Detailed collections from the Wuliu Quarry show that the faunas of the Ovatoryctocara cf. granulata-Bathyonotus holopygus and the O. indicus zones changed in a 20 cm, relatively barren interval. This faunal turnover does not coincide with a lithologic change and suggests that the section would be a good location for the GSSP of the base of Cambrian Stage 5/Series 3.•

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A negative carbon isotope excursion defines the boundary from Cambrian Series 2 to Cambrian Series 3 on the Yangtze Platform, South China

Cited by 55 publications

References 22 publications

Geochemical quantification of mixed marine oils from Tazhong area of Tarim Basin, NW China

Geochemical quantification of mixed marine oils from Tazhong area of Tarim Basin, NW China

The Henson Gletscher Formation, North Greenland, and its bearing on the global Cambrian Series 2–Series 3 boundary

Detailed trilobite biostratigraphy across the proposed GSSP for Stage 5 (“Middle Cambrian” boundary) at the Wuliu-Zengjiayan section, Guizhou, China

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