Sedimentology and depositional history of the Claret Formation ('carse clay') at Bothkennar, near Grangemouth

Beverley F. Barras, Michael A. Paul

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    The estuarine sediments of Flandrian age which comprise the Claret Formation in the Bothkennar area can be divided into bedded, mottled and laminated facies on the basis of primary sedimentary structures, frequency of silty laminae and the nature and extent of bioturbation. The mottled facies can be further subdivided by the style of bioturbation. The facies are very similar in overall particle size distribution and mineralogy. Biogenic traces occur in all the facies and have been tentatively matched to organisms present in the modern infauna of the Firth of Forth. The succession of facies has been controlled by the fall of relative sea-level since the Flandrian maximum and records an emergent sequence from sub-tidal (probable water depth around 20 m) to inter-tidal. In the Bothkennar area four local subdivisions can be recognized in the Claret Formation, which reflect changes in sedimentary environment consequent on the reduction in water depth.

    Original languageEnglish
    Pages (from-to)131-144
    Number of pages14
    JournalScottish Journal of Geology
    Volume35
    Issue number2
    Publication statusPublished - 1999

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