Skip to content

Research at St Andrews

Re-evaluation and extension of the Marine Isotope Stage 5 tephrostratigraphy of the Faroe Islands region: The cryptotephra record

Research output: Contribution to journalArticle

Author(s)

P.M. Abbott, W.E.N. Austin, S.M. Davies, N.J.G. Pearce, T.L. Rasmussen, S. Wastegård, J. Brendryen

School/Research organisations

Abstract

Abstract Previous studies of marine sequences from the Faroe Islands region have identified a series of coarse-grained tephra horizons deposited during Marine Isotope Stage (MIS) 5. Here we reassess the MIS 5 tephrostratigraphy of the Faroe Islands region and focus on the cryptotephra deposits preserved within the fine-grained fraction of marine core LINK 16. We also extend the record to encompass the late MIS 6 and early MIS 4 periods. A density separation technique, commonly used for tephra investigations in lacustrine settings but rarely applied to marine sediments, is utilised to explore the fine-grained material and EPMA and LA-ICP-MS are employed to determine the major and trace element composition of individual tephra shards. In total, 3 basaltic and 3 rhyolitic Icelandic cryptotephra deposits with homogeneous geochemical compositions are identified — all of which have the potential to act as isochronous tie-lines. Geochemical results highlight that the Grímsvötn volcanic system of Iceland is the predominant source of the basaltic horizons and the Öraefajökull or Torfajökull systems are the likely sources of the rhyolitic deposits. Three of the horizons have been previously recognised in Faroe Islands region marine sequences, with two of these deposits traceable into a Norwegian Sea sequence. An early MIS 4 rhyolitic horizon is the most widespread deposit as it can be traced into the Norwegian Sea and to the south into a record from the Rockall Trough. Basaltic and rhyolitic horizons deposited during late MIS 6 have not been recognised in other sequences and represent new additions to the regional tephrostratigraphy.
Close

Details

Original languageEnglish
Pages (from-to)153-168
Number of pages16
JournalPalaeogeography, Palaeoclimatology, Palaeoecology
Volume409
Early online date10 May 2014
DOIs
Publication statusPublished - 1 Sep 2014

    Research areas

  • Volcanic ash, Iceland, Marine sequences, Isochrons, Palaeoclimatic synchronisation

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

View graph of relations

Related by author

  1. The genetic diversity, morphology, biogeography, and taxonomic designations of Ammonia (Foraminifera) in the Northeast Atlantic

    Bird, C., Schweizer, M., Roberts, A., Austin, W. E. N., Knudsen, K. L., Evans, K. M., Filipsson, H. L., Sayer, M. D. J., Geslin, E. & Darling, K. F., 19 Feb 2019, In : Marine Micropaleontology.

    Research output: Contribution to journalArticle

  2. Palynology and micropalaeontology of the Pliocene - Pleistocene transition in outcrop from the western Caspian Sea, Azerbaijan: potential links with the Mediterranean, Black Sea and the Arctic Ocean?

    Richards, K., van Baak, C. G. C., Athersuch, J., Hoyle, T. M., Stoica, M., Austin, W. E. N., Cage, A. G., Wonders, A. A. H., Marret, F. & Pinnington, C. A., 15 Dec 2018, In : Palaeogeography, Palaeoclimatology, Palaeoecology. 511, p. 119-143

    Research output: Contribution to journalArticle

  3. Late Weichselian glacial history of Forlandsundet, western Svalbard: an inter-ice-stream setting

    Butschek, F., Arosio, R., Austin, W. E. N., Noormets, R. & Howe, J. A., 1 Dec 2018, In : arktos. First online, 14 p.

    Research output: Contribution to journalArticle

  4. Assessing proxy signatures of temperature, salinity, and hypoxia in the Baltic Sea through foraminifera-based geochemistry and faunal assemblages

    Groeneveld, J., Filipsson, H. L., Austin, W. E. N., Darling, K., McCarthy, D., Krupinski, N. B. Q., Bird, C. & Schweizer, M., 7 Sep 2018, In : Journal of Micropalaeontology. 37, 2, p. 403-429 27 p.

    Research output: Contribution to journalArticle

  5. Scotland's forgotten carbon: a national assessment of mid-latitude fjord sedimentary stocks

    Smeaton, C., Austin, W. E. N., Davies, A., Baltzer, A., Howe, J. A. & Baxter, J. M., 15 Dec 2017, In : Biogeosciences. 14, 24, p. 5663-5674

    Research output: Contribution to journalArticle

Related by journal

  1. Palaeogeography, Palaeoclimatology, Palaeoecology (Journal)

    Michael Ian Bird (Member of editorial board)
    2006 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

Related by journal

  1. Palynology and micropalaeontology of the Pliocene - Pleistocene transition in outcrop from the western Caspian Sea, Azerbaijan: potential links with the Mediterranean, Black Sea and the Arctic Ocean?

    Richards, K., van Baak, C. G. C., Athersuch, J., Hoyle, T. M., Stoica, M., Austin, W. E. N., Cage, A. G., Wonders, A. A. H., Marret, F. & Pinnington, C. A., 15 Dec 2018, In : Palaeogeography, Palaeoclimatology, Palaeoecology. 511, p. 119-143

    Research output: Contribution to journalArticle

  2. High-frequency fluctuations in redox conditions during the latest Permian mass extinction

    Mettam, C., Zerkle, A. L., Claire, M. W., Izon, G., Junium, C. J. & Twitchett, R. J., 1 Nov 2017, In : Palaeogeography, Palaeoclimatology, Palaeoecology. 485, p. 210-223

    Research output: Contribution to journalArticle

ID: 131142488