Skip to content

Research at St Andrews

Oxygenated conditions in the aftermath of the Lomagundi-Jatuli Event: the carbon isotope and rare earth element signatures of the Paleoproterozoic Zaonega Formation, Russia

Research output: Contribution to journalArticlepeer-review

Open Access Status

  • Embargoed (until 9/07/21)

Author(s)

T. Kreitsmann, A. Lepland, M. Bau, A. Prave, K. Paiste, K. Mänd, H. Sepp, T. Martma, A.E. Romashkin, K. Kirsimäe

School/Research organisations

Abstract

The c. 2.0 Ga Zaonega Formation of the Onega Basin (NW Russia) has been central in efforts to understand what led to the initial rise (Great Oxidation Event, GOE) and postulated fall in free atmospheric oxygen and associated high-amplitude carbon cycle excursions, the Lomagundi-Jatuli Event (LJE) and subsequent Shunga Event during Paleoproterozoic time. The Formation accumulated shortly after the LJE and encompasses both the recovery in the carbon cycle and hypothesised contraction of the oceanic oxidant pool. However, interpreting the correct environmental context recorded by geochemical signatures in the Zaonega rocks is difficult due to a complex depositional and diagenetic history. In order to robustly constrain that history, we undertook a multiproxy study (mineralogy, petrography, carbon isotope and rare earth element composition) of carbonate beds in the upper part of the Zaonega Formation recovered in the 102-m composite section of the OnZap drill-cores. Our findings differentiate primary environmental signatures from secondary overprinting and show that: (i) the best-preserved carbonate beds define an upwards increasing δ13Ccarb trend from c. -5.4‰ to near 0‰; and that (ii) large intra-bed δ13Ccarb variations reflect varying contributions of methanotrophic dissolved inorganic carbon (DIC) to the basinal DIC pool. Rare earth element and yttrium (REYSN) patterns confirm a marine origin of the carbonate beds whereas a consistent positive EuSN anomaly suggests a strong high temperature hydrothermal input during accumulation of the Zaonega Formation. Importantly, the presence of a negative CeSN anomaly in the REYSN pattern indicates an oxygenated atmosphere-ocean system shortly after the LJE and indicates that models invoking a fall in oxygen at that time require reassessment.
Close

Details

Original languageEnglish
Article number105855
Number of pages16
JournalPrecambrian Research
Volume347
Early online date9 Jul 2020
DOIs
Publication statusPublished - Sep 2020

    Research areas

  • Carbon isotopes, Rare earth elements, Lomagundi-Jatuli Event, Ce anomaly, Zaonega Formationˇ

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Using zircon in mafic migmatites to disentangle complex high-grade gneiss terrains – Terrane spotting in the Lewisian complex, NW Scotland

    Fischer, S., Prave, A., Johnson, T., Cawood, P. A., Hawkesworth, C., Horstwood, M. & EIMF, Apr 2021, In: Precambrian Research. 355, 106074.

    Research output: Contribution to journalArticlepeer-review

  2. Geochemical fingerprints of seawater in the Late Mesoproterozoic Midcontinent Rift, North America: life at the marine-land divide

    Stueeken, E. E., Jones, S., Raub, T. D., Prave, T., Rose, C. V., Linnekogel, S. & Cloutier, J., 20 Oct 2020, In: Chemical Geology. 553, 119812.

    Research output: Contribution to journalArticlepeer-review

  3. The mesoproterozoic Stac Fada Member, NW Scotland: an impact origin confirmed but refined

    Osinski, G. R., Ferrière, L., Hill, P. J. A., Prave, A. R., Preston, L. J., Singleton, A. & Pickersgill, A. E., 16 Oct 2020, In: Journal of the Geological Society. Online First, 12 p., jgs2020-056.

    Research output: Contribution to journalArticlepeer-review

  4. Petrogenesis and geochemical halos of the amphibolite facies, Lower Proterozoic, Kerry Road volcanogenic massive sulfide deposit, Loch Maree Group, Gairloch, NW Scotland

    Drummond, D., Cloutier, J., Boyce, A. J. & Prave, T., Sep 2020, In: Ore Geology Reviews. 124, 16 p., 103623.

    Research output: Contribution to journalReview articlepeer-review

  5. Identifying global vs. basinal controls on Paleoproterozoic organic carbon and sulfur isotope records

    Paiste, K., Lepland, A., Zerkle, A. L., Kirsimäe, K., Kreitsmann, T., Mänd, K., Romashkin, A. E., Rychanchik, D. V. & Prave, A. R., Aug 2020, In: Earth-Science Reviews. 207, 103230.

    Research output: Contribution to journalReview articlepeer-review

Related by journal

  1. The Mesoarchaean Akia terrane, West Greenland, revisited: new insights based on spatial integration of geophysics, field observation, geochemistry and geochronology

    Steenfelt, A., Hollis, J., Kirkland, C. L., Sandrin, A., Gardiner, N. J., K. H. Olierook, H., Szilas, K., Waterton, P. & Yakymchuk, C., Jan 2021, In: Precambrian Research. In press, 105958.

    Research output: Contribution to journalArticlepeer-review

  2. Transient deep-water oxygenation recorded by rare Mesoproterozoic phosphorites, South Urals

    Stüeken, E. E., Kuznetsov, A. B., Vasilyeva, I. M., Krupenin, M. T. & Bekker, A., 15 Jul 2021, In: Precambrian Research. 360, 14 p., 106242.

    Research output: Contribution to journalArticlepeer-review

  3. Using zircon in mafic migmatites to disentangle complex high-grade gneiss terrains – Terrane spotting in the Lewisian complex, NW Scotland

    Fischer, S., Prave, A., Johnson, T., Cawood, P. A., Hawkesworth, C., Horstwood, M. & EIMF, Apr 2021, In: Precambrian Research. 355, 106074.

    Research output: Contribution to journalArticlepeer-review

  4. A marine origin for the late Mesoproterozoic Copper Harbor and Nonesuch Formations of the Midcontinent Rift of Laurentia

    Jones, S. M., Prave, A. R., Raub, T. D., Cloutier, J., Stüeken, E. E., Rose, C. V., Linnekogel, S. & Nazarov, K., Jan 2020, In: Precambrian Research. 336, 105510.

    Research output: Contribution to journalArticlepeer-review

  5. Mesoarchean partial melting of mafic crust and tonalite production during high-T–low-P stagnant tectonism, Akia Terrane, West Greenland

    Yakymchuk, C., Kirkland, C. L., Hollis, J. A., Kendrick, J., Gardiner, N. J. & Szilas, K., Apr 2020, In: Precambrian Research. 339, 105615.

    Research output: Contribution to journalArticlepeer-review

ID: 269173018

Top