Geochemistry and hydrodynamics in the Hutt and Leeman evaporitic lagoons, Western Australia

A comparative study

A. V. Arakel*

*Corresponding author for this work

    Research output: Contribution to journalArticle

    10 Citations (Scopus)

    Abstract

    Hutt and Leeman Lagoons, in the Perth Basin, are shallow (<11 m) evaporitic basins developed as a result of ponding in a Pleistocene dune terrain. The contemporary lagoons are playa surfaces in which sedimentation is related to distribution and interaction of hydrologic units (groundwaters, seawater, and lagoonal brines). Precipitation is restricted to ephemeral halite in ponded waters, and diagenetic emplacement of CaCO3 and CaSO4 minerals in playa sediments. Playa surfaces, predominantly below sealevel, fundamentally control the lagoonal circulation system: a net influx of seawater, impelled by a hydrostatic head of up to 4 m is seasonally balanced by evaporative reflux.

    Original languageEnglish
    Pages (from-to)1-35
    Number of pages35
    JournalMarine Geology
    Volume41
    Issue number1-2
    DOIs
    Publication statusPublished - 1981

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