Geochemical analysis of evaporite sedimentation in the Gachsaran Formation, Zeloi oil field, southwest Iran

Alireza Bahadori*, Emmanuel John M. Carranza, Bahman Soleimani

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    26 Citations (Scopus)

    Abstract

    In this study, the paleo-sedimentary depositional environment of the Gachsaran Formation and the Asmari reservoir cap rock (i.e., the stratigraphically lowest member of the Gachsaran Formation) was investigated from elemental geochemical data and mineralogical data obtained XRF and SEM analyses, respectively, of anhydrite samples collected from two oil wells in the Zeloi oil field in southwestern Iran. The present data reveal that arid conditions and cycles of transgression–regression of the sea contributed to the formation of evaporite sequences of the Gachsaran Formation in a coastal sabkha-lagoon basin that was partly closed to the sea. This interpretation was based on synthesis of statistical correlation analysis the geochemical data, chemostratigraphic correlation of geochemical ratios, and textural analysis of salts observed in SEM images.
    Original languageEnglish
    Pages (from-to)97-112
    JournalJournal of geochemical exploration
    Volume111
    Issue number3
    DOIs
    Publication statusPublished - 2011

    Keywords

    • n/a OA procedure

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