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Multiple Palaeoproterozoic carbon burial episodes and excursions

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Multiple Palaeoproterozoic carbon burial episodes and excursions. / Martin, A.P.; Prave, A.R.; Condon, D.J.; Lepland, A.; Fallick, A.E.; Romashkin, A.E.; Medvedev, P.V.; Rychanchik, D.V.

In: Earth and Planetary Science Letters, Vol. 424, 15.08.2015, p. 226-236.

Research output: Contribution to journalArticle

Harvard

Martin, AP, Prave, AR, Condon, DJ, Lepland, A, Fallick, AE, Romashkin, AE, Medvedev, PV & Rychanchik, DV 2015, 'Multiple Palaeoproterozoic carbon burial episodes and excursions', Earth and Planetary Science Letters, vol. 424, pp. 226-236. https://doi.org/10.1016/j.epsl.2015.05.023

APA

Martin, A. P., Prave, A. R., Condon, D. J., Lepland, A., Fallick, A. E., Romashkin, A. E., ... Rychanchik, D. V. (2015). Multiple Palaeoproterozoic carbon burial episodes and excursions. Earth and Planetary Science Letters, 424, 226-236. https://doi.org/10.1016/j.epsl.2015.05.023

Vancouver

Martin AP, Prave AR, Condon DJ, Lepland A, Fallick AE, Romashkin AE et al. Multiple Palaeoproterozoic carbon burial episodes and excursions. Earth and Planetary Science Letters. 2015 Aug 15;424:226-236. https://doi.org/10.1016/j.epsl.2015.05.023

Author

Martin, A.P. ; Prave, A.R. ; Condon, D.J. ; Lepland, A. ; Fallick, A.E. ; Romashkin, A.E. ; Medvedev, P.V. ; Rychanchik, D.V. / Multiple Palaeoproterozoic carbon burial episodes and excursions. In: Earth and Planetary Science Letters. 2015 ; Vol. 424. pp. 226-236.

Bibtex - Download

@article{04b1b6f438834f7ab142b80386f3e1aa,
title = "Multiple Palaeoproterozoic carbon burial episodes and excursions",
abstract = "Organic-rich rocks (averaging 2–5{\%} total organic carbon) and positive carbonate-carbon isotope excursions (δ13C > 5‰ and locally much higher, i.e. the Lomagundi-Jatuli Event) are hallmark features of Palaeoproterozoic successions and are assumed to archive a global event of unique environmental conditions following the c. 2.3 Ga Great Oxidation Event. Here we combine new and published geochronology that shows that the main Palaeoproterozoic carbon burial episodes (CBEs) preserved in Russia, Gabon and Australia were temporally discrete depositional events between c. 2.10 and 1.85 Ga. In northwest Russia we can also show that timing of the termination of the Lomagundi-Jatuli Event may have differed by up to 50 Ma between localities, and that Ni mineralisation occurred at c. 1920 Ma. Further, CBEs have traits in common with Mesozoic Oceanic Anoxic Events (OAEs); both are exceptionally organic-rich relative to encasing strata, associated with contemporaneous igneous activity and marked by organic carbon isotope profiles that exhibit a stepped decrease followed by a stabilisation period and recovery. Although CBE strata are thicker and of greater duration than OAEs (100 s of metres versus metres, ∼106 years versus ∼105 years), their shared characteristics hint at a commonality of cause(s) and feedbacks. This suggests that CBEs represent processes that can be either basin-specific or global in nature and a combination of circumstances that are not unique to the Palaeoproterozoic. Our findings urge circumspection and re-consideration of models that assume CBEs are a Deep Time singularity.",
keywords = "Carbon burial event, GOE, Shunga-Francevillian Event, Lomagundi-Jatuli Event, U–Pb geochronology",
author = "A.P. Martin and A.R. Prave and D.J. Condon and A. Lepland and A.E. Fallick and A.E. Romashkin and P.V. Medvedev and D.V. Rychanchik",
note = "APM, DJC, ARP and AEF were supported by NERC grant NE/G00398X/1.",
year = "2015",
month = "8",
day = "15",
doi = "10.1016/j.epsl.2015.05.023",
language = "English",
volume = "424",
pages = "226--236",
journal = "Earth and Planetary Science Letters",
issn = "0012-821X",
publisher = "Elsevier Science BV",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Multiple Palaeoproterozoic carbon burial episodes and excursions

AU - Martin, A.P.

AU - Prave, A.R.

AU - Condon, D.J.

AU - Lepland, A.

AU - Fallick, A.E.

AU - Romashkin, A.E.

AU - Medvedev, P.V.

AU - Rychanchik, D.V.

N1 - APM, DJC, ARP and AEF were supported by NERC grant NE/G00398X/1.

PY - 2015/8/15

Y1 - 2015/8/15

N2 - Organic-rich rocks (averaging 2–5% total organic carbon) and positive carbonate-carbon isotope excursions (δ13C > 5‰ and locally much higher, i.e. the Lomagundi-Jatuli Event) are hallmark features of Palaeoproterozoic successions and are assumed to archive a global event of unique environmental conditions following the c. 2.3 Ga Great Oxidation Event. Here we combine new and published geochronology that shows that the main Palaeoproterozoic carbon burial episodes (CBEs) preserved in Russia, Gabon and Australia were temporally discrete depositional events between c. 2.10 and 1.85 Ga. In northwest Russia we can also show that timing of the termination of the Lomagundi-Jatuli Event may have differed by up to 50 Ma between localities, and that Ni mineralisation occurred at c. 1920 Ma. Further, CBEs have traits in common with Mesozoic Oceanic Anoxic Events (OAEs); both are exceptionally organic-rich relative to encasing strata, associated with contemporaneous igneous activity and marked by organic carbon isotope profiles that exhibit a stepped decrease followed by a stabilisation period and recovery. Although CBE strata are thicker and of greater duration than OAEs (100 s of metres versus metres, ∼106 years versus ∼105 years), their shared characteristics hint at a commonality of cause(s) and feedbacks. This suggests that CBEs represent processes that can be either basin-specific or global in nature and a combination of circumstances that are not unique to the Palaeoproterozoic. Our findings urge circumspection and re-consideration of models that assume CBEs are a Deep Time singularity.

AB - Organic-rich rocks (averaging 2–5% total organic carbon) and positive carbonate-carbon isotope excursions (δ13C > 5‰ and locally much higher, i.e. the Lomagundi-Jatuli Event) are hallmark features of Palaeoproterozoic successions and are assumed to archive a global event of unique environmental conditions following the c. 2.3 Ga Great Oxidation Event. Here we combine new and published geochronology that shows that the main Palaeoproterozoic carbon burial episodes (CBEs) preserved in Russia, Gabon and Australia were temporally discrete depositional events between c. 2.10 and 1.85 Ga. In northwest Russia we can also show that timing of the termination of the Lomagundi-Jatuli Event may have differed by up to 50 Ma between localities, and that Ni mineralisation occurred at c. 1920 Ma. Further, CBEs have traits in common with Mesozoic Oceanic Anoxic Events (OAEs); both are exceptionally organic-rich relative to encasing strata, associated with contemporaneous igneous activity and marked by organic carbon isotope profiles that exhibit a stepped decrease followed by a stabilisation period and recovery. Although CBE strata are thicker and of greater duration than OAEs (100 s of metres versus metres, ∼106 years versus ∼105 years), their shared characteristics hint at a commonality of cause(s) and feedbacks. This suggests that CBEs represent processes that can be either basin-specific or global in nature and a combination of circumstances that are not unique to the Palaeoproterozoic. Our findings urge circumspection and re-consideration of models that assume CBEs are a Deep Time singularity.

KW - Carbon burial event

KW - GOE

KW - Shunga-Francevillian Event

KW - Lomagundi-Jatuli Event

KW - U–Pb geochronology

UR - https://www.sciencedirect.com/science/article/pii/S0012821X15003131#se0400

U2 - 10.1016/j.epsl.2015.05.023

DO - 10.1016/j.epsl.2015.05.023

M3 - Article

VL - 424

SP - 226

EP - 236

JO - Earth and Planetary Science Letters

JF - Earth and Planetary Science Letters

SN - 0012-821X

ER -

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