Abstract
Three sections of Guri Member of the Mishan Formation in the Bandar Abbas area are investigated for foraminifera biozonation and lithostratigraphic correlation. The base of Guri Member conformably overlies Gachsaran Formation (or Razak Formation in some sections), whereas the top of the member is overlain by marls. Thirty-four foraminifer species are identified and prove the age of Burdigalian for the Guri Member in the Gery Sheikh and Anguran sections and Burdigalian–Langhan range in the Bāz section. Two assemblage zones are recognized based on the distribution range of species. Correlation to other sections shows the eastward marine progression and age change from the Burdigalian in the west to the Burdigalian–Langhian in the east of Bandar Abbas area.
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