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A refined late-Cryogenian – Ediacaran Earth history of South China: phosphorous-rich marbles of the Dabie and Sulu orogens

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A refined late-Cryogenian – Ediacaran Earth history of South China: phosphorous-rich marbles of the Dabie and Sulu orogens . / Prave, A. R.; Meng, F.; Lepland, A.; Kirsmäe, K.; Kreitsmann, T.; Jiang, C. Z.

In: Precambrian Research, Vol. 305, 02.2018, p. 166-176.

Research output: Contribution to journalArticle

Harvard

Prave, AR, Meng, F, Lepland, A, Kirsmäe, K, Kreitsmann, T & Jiang, CZ 2018, 'A refined late-Cryogenian – Ediacaran Earth history of South China: phosphorous-rich marbles of the Dabie and Sulu orogens ', Precambrian Research, vol. 305, pp. 166-176. https://doi.org/10.1016/j.precamres.2017.11.022

APA

Prave, A. R., Meng, F., Lepland, A., Kirsmäe, K., Kreitsmann, T., & Jiang, C. Z. (2018). A refined late-Cryogenian – Ediacaran Earth history of South China: phosphorous-rich marbles of the Dabie and Sulu orogens . Precambrian Research, 305, 166-176. https://doi.org/10.1016/j.precamres.2017.11.022

Vancouver

Prave AR, Meng F, Lepland A, Kirsmäe K, Kreitsmann T, Jiang CZ. A refined late-Cryogenian – Ediacaran Earth history of South China: phosphorous-rich marbles of the Dabie and Sulu orogens . Precambrian Research. 2018 Feb;305:166-176. https://doi.org/10.1016/j.precamres.2017.11.022

Author

Prave, A. R. ; Meng, F. ; Lepland, A. ; Kirsmäe, K. ; Kreitsmann, T. ; Jiang, C. Z. / A refined late-Cryogenian – Ediacaran Earth history of South China: phosphorous-rich marbles of the Dabie and Sulu orogens . In: Precambrian Research. 2018 ; Vol. 305. pp. 166-176.

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@article{44131702f6cd46b48226fcdb1c684003,
title = "A refined late-Cryogenian – Ediacaran Earth history of South China:: phosphorous-rich marbles of the Dabie and Sulu orogens",
abstract = "The late-Cryogenian – Ediacaran geological framework for South China is constructed principally from sedimentary successions preserved in the central and western regions of the Yangtze Block. New stratigraphic and carbonate-carbon isotope data allow us to extend that framework into the exhumed HP-UHP subduction complexes of the eastern Dabie and Sulu orogens that separate the South and North China cratons. Those data show that marble and phosphorous-rich (P-rich) units in those complexes were originally part of an Ediacaran shallow-marine shelf-carbonate platform. The basal pebbly schist (metadiamictite) and lowermost P-rich marble of the Jinping Formation (Haizhou Group) in the Sulu Orogen matches in both facies character and C-isotope profile that of the Marinoan-equivalent glacial-cap carbonate couplet of the Nantuo and Doushantuo formations. The Daxinwu Formation (Susong Group) in the eastern Dabie Orogen contains a marble unit that has, for several hundreds of metres, a strikingly uniform C-isotope profile of low δ13C positive values and is overlain by a P-rich graphitic schist; these features match those of the late Ediacaran to early Cambrian Dengying Formation. These correlations establish that the HP-UHP metasedimentary rocks, many of which were once considered to be Palaeo- to Mesoproterozoic in age, are a Neoproterozoic-age cover sequence of the continental margin of the Yangtze Block. Further, their widespread development limits their utility as indicators of offset across the Tan-Lu fault zone and, instead, favours tectonic models that interpret that feature as a continental-scale tear fault formed during the Mesozoic collision and suturing of the North and South China cratons.",
keywords = "Dabie Orogen, Sulu Orogen, Haizhou group, Susong group, Ediacaran, Marinoan glaciation, Phosphorite",
author = "Prave, {A. R.} and F. Meng and A. Lepland and K. Kirsm{\"a}e and T. Kreitsmann and Jiang, {C. Z.}",
note = "This research was supported by the National Natural Science Foundation of China Grant Numbers 41473039 and 4151101015, and by the Estonian Science Agency project PUT0696.",
year = "2018",
month = "2",
doi = "10.1016/j.precamres.2017.11.022",
language = "English",
volume = "305",
pages = "166--176",
journal = "Precambrian Research",
issn = "0301-9268",
publisher = "Elsevier Science BV",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - A refined late-Cryogenian – Ediacaran Earth history of South China:

T2 - phosphorous-rich marbles of the Dabie and Sulu orogens

AU - Prave, A. R.

AU - Meng, F.

AU - Lepland, A.

AU - Kirsmäe, K.

AU - Kreitsmann, T.

AU - Jiang, C. Z.

N1 - This research was supported by the National Natural Science Foundation of China Grant Numbers 41473039 and 4151101015, and by the Estonian Science Agency project PUT0696.

PY - 2018/2

Y1 - 2018/2

N2 - The late-Cryogenian – Ediacaran geological framework for South China is constructed principally from sedimentary successions preserved in the central and western regions of the Yangtze Block. New stratigraphic and carbonate-carbon isotope data allow us to extend that framework into the exhumed HP-UHP subduction complexes of the eastern Dabie and Sulu orogens that separate the South and North China cratons. Those data show that marble and phosphorous-rich (P-rich) units in those complexes were originally part of an Ediacaran shallow-marine shelf-carbonate platform. The basal pebbly schist (metadiamictite) and lowermost P-rich marble of the Jinping Formation (Haizhou Group) in the Sulu Orogen matches in both facies character and C-isotope profile that of the Marinoan-equivalent glacial-cap carbonate couplet of the Nantuo and Doushantuo formations. The Daxinwu Formation (Susong Group) in the eastern Dabie Orogen contains a marble unit that has, for several hundreds of metres, a strikingly uniform C-isotope profile of low δ13C positive values and is overlain by a P-rich graphitic schist; these features match those of the late Ediacaran to early Cambrian Dengying Formation. These correlations establish that the HP-UHP metasedimentary rocks, many of which were once considered to be Palaeo- to Mesoproterozoic in age, are a Neoproterozoic-age cover sequence of the continental margin of the Yangtze Block. Further, their widespread development limits their utility as indicators of offset across the Tan-Lu fault zone and, instead, favours tectonic models that interpret that feature as a continental-scale tear fault formed during the Mesozoic collision and suturing of the North and South China cratons.

AB - The late-Cryogenian – Ediacaran geological framework for South China is constructed principally from sedimentary successions preserved in the central and western regions of the Yangtze Block. New stratigraphic and carbonate-carbon isotope data allow us to extend that framework into the exhumed HP-UHP subduction complexes of the eastern Dabie and Sulu orogens that separate the South and North China cratons. Those data show that marble and phosphorous-rich (P-rich) units in those complexes were originally part of an Ediacaran shallow-marine shelf-carbonate platform. The basal pebbly schist (metadiamictite) and lowermost P-rich marble of the Jinping Formation (Haizhou Group) in the Sulu Orogen matches in both facies character and C-isotope profile that of the Marinoan-equivalent glacial-cap carbonate couplet of the Nantuo and Doushantuo formations. The Daxinwu Formation (Susong Group) in the eastern Dabie Orogen contains a marble unit that has, for several hundreds of metres, a strikingly uniform C-isotope profile of low δ13C positive values and is overlain by a P-rich graphitic schist; these features match those of the late Ediacaran to early Cambrian Dengying Formation. These correlations establish that the HP-UHP metasedimentary rocks, many of which were once considered to be Palaeo- to Mesoproterozoic in age, are a Neoproterozoic-age cover sequence of the continental margin of the Yangtze Block. Further, their widespread development limits their utility as indicators of offset across the Tan-Lu fault zone and, instead, favours tectonic models that interpret that feature as a continental-scale tear fault formed during the Mesozoic collision and suturing of the North and South China cratons.

KW - Dabie Orogen

KW - Sulu Orogen

KW - Haizhou group

KW - Susong group

KW - Ediacaran

KW - Marinoan glaciation

KW - Phosphorite

U2 - 10.1016/j.precamres.2017.11.022

DO - 10.1016/j.precamres.2017.11.022

M3 - Article

VL - 305

SP - 166

EP - 176

JO - Precambrian Research

JF - Precambrian Research

SN - 0301-9268

ER -

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