Skip to content

Research at St Andrews

Decimeter-scale mapping of carbonate-controlled trace element distribution in Neoarchean cuspate stromatolites

Research output: Contribution to journalArticlepeer-review

Author(s)

Matthew R. Warke, Nicholas P. Edwards, Roy A. Wogelius, Phillip L. Manning, Uwe Bergmann, Victoria M. Egerton, Katalina C. Kimball, Russell J. Garwood, Nicolas J. Beukes, Stefan Schröder

School/Research organisations

Abstract

Ancient stromatolites can provide key insights into the early evolution of life on Earth. Neoarchean fenestrate stromatolites from the ∼2520 Ma Upper Nauga Formation (Transvaal Supergroup, South Africa) preserve cuspate morphologies. They possess clearly delineated support and drape structures interpreted as dolomitized microbial mat material. Petrographic observations show that the biogenic structures are composed of planar-s to non-planar ferroan dolomite, encased in ferroan calcite, including herringbone calcite textures. The cuspate stromatolites were analyzed using Synchrotron Rapid Scanning X-Ray Fluorescence (SRS-XRF) and more conventional techniques to determine: (i) whether element distributions could be distinguished in ancient stromatolites at both cm to dm scales, (ii) whether element distributions show variation between biogenic and abiogenic textures, and (iii) the sample’s paragenesis. The distributions of Ca, Fe, Mn, Pb, Cu, As, Br, Al, Si, P, and S directly correspond to dolomitized stromatolitic structures and show trace element distributions are principally controlled by calcite and dolomite occurrence. Dolomite formation was mainly driven by seawater-derived fluids given the high concentrations of Fe and retention of marine shale-normalized rare earth element and yttrium (REYSN) patterns, however the spatial association of dolomite to stromatolite structures may reflect microbially-influenced mineral nucleation. Given the complexity of this sample’s paragenetic evolution, trace metal distributions cannot be conclusively tied to specific metabolic pathways, bioaccumulation or passive binding, however, the results show SRS-XRF can be used for quantifiable, spatial, in-situ investigation of ancient microbialites.
Close

Details

Original languageEnglish
JournalGeochimica et Cosmochimica Acta
Volume261
Early online date9 Jul 2019
DOIs
Publication statusPublished - 15 Sep 2019

    Research areas

  • X-ray fluorescence, Stromatolite, SRS-XRF, Synchrotron, Nauga formation

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

View graph of relations

Related by author

  1. Sedimentology and isotope geochemistry of transitional evaporitic environments within arid continental settings: from erg to saline lakes

    Pettigrew, R. P., Priddy, C., Clarke, S. M., Warke, M. R., Stüeken, E. E. & Claire, M. W., 20 Dec 2020, In: Sedimentology. Early View

    Research output: Contribution to journalArticlepeer-review

  2. The Great Oxidation Event preceded a Paleoproterozoic "snowball Earth"

    Warke, M. R., Di Rocco, T., Zerkle, A. L., Lepland, A., Prave, T., Martin, A., Ueno, Y., Condon, D. & Claire, M., 16 Jun 2020, In: Proceedings of the National Academy of Sciences of the United States of America. 117, 24, p. 13314-13320 7 p.

    Research output: Contribution to journalArticlepeer-review

  3. Billions of years ago, the rise of oxygen in Earth’s atmosphere caused a worldwide deep freeze

    Warke, M., 2 Jun 2020, The Conversation.

    Research output: Contribution to specialist publicationArticle

  4. Positive cerium anomalies imply pre-GOE redox stratification and manganese oxidation in Paleoproterozoic shallow marine environments

    Warke, M. R., Strauss, H. & Schröder, S., 30 Apr 2020, In: Precambrian Research. In press, 105767.

    Research output: Contribution to journalArticlepeer-review

  5. Testing models of pre-GOE environmental oxidation: a Paleoproterozoic marine signal in platform dolomites of the Tongwane Formation (South Africa)

    Warke, M. R., Schröder, S. & Strauss, H., Aug 2018, In: Precambrian Research. 313, p. 205-220 16 p.

    Research output: Contribution to journalArticlepeer-review

Related by journal

  1. Experiments quantifying elemental and isotopic fractionations during evaporation of CAI-like melts in low-pressure hydrogen and in vacuum: Constraints on thermal processing of CAI in the protoplanetary disk

    Mendybaev, R. A., Kamibayashi, M., Teng, F-Z., Savage, P. S., Bastian Georg, R., Richter, F. M. & Tachibana, S., 1 Jan 2021, In: Geochimica et Cosmochimica Acta. 292, p. 557-576

    Research output: Contribution to journalArticlepeer-review

  2. Sulfate sulfur isotopes and major ion chemistry reveal that pyrite oxidation counteracts CO2 drawdown from silicate weathering in the Langtang-Trisuli-Narayani River system, Nepal Himalaya

    Kemeny, P. C., Lopez, G. I., Dalleska, N. F., Torres, M., Burke, A., Bhatt, M. P., West, A. J., Hartmann, J. & Adkins, J. F., 1 Feb 2021, In: Geochimica et Cosmochimica Acta. 294, p. 43-69

    Research output: Contribution to journalArticlepeer-review

  3. Incorporation of minor and trace elements into cultured brachiopods: implications for proxy application with new insights from a biomineralisation model

    Jurikova, H., Ippach, M., Liebetrau, V., Gutjahr, M., Krause, S., Büsse, S., Gorb, S. N., Henkel, D., Hiebenthal, C., Schmidt, M., Leipe, T., Laudien, J. & Eisenhauer, A., 1 Oct 2020, In: Geochimica et Cosmochimica Acta. 286, p. 418-440 23 p.

    Research output: Contribution to journalArticlepeer-review

  4. The sulfur isotope evolution of magmatic-hydrothermal fluids: insights into ore-forming processes

    Hutchison, W., Finch, A. A. & Boyce, A. J., 1 Nov 2020, In: Geochimica et Cosmochimica Acta. 288, p. 176-198

    Research output: Contribution to journalArticlepeer-review

  5. Trace and major element incorporation into amorphous calcium carbonate (ACC) precipitated from seawater

    Evans, D., Gray, W. R., Rae, J. W. B., Greenop, R., Webb, P. B., Penkman, K., Kroger, R. & Allison, N., 9 Sep 2020, In: Geochimica et Cosmochimica Acta. In press

    Research output: Contribution to journalArticlepeer-review

Related by journal

  1. Geochimica et Cosmochimica Acta (Journal)

    Anouk Margaretha Borst (Reviewer)

    15 Jul 2020

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

ID: 259622599

Top