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Sequence Stratigraphy of Radhuma Section; Onshore Kuwait
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Sixth Arabian Plate Geology Workshop, Dec 2016, Volume 2016, p.1 - 4
Abstract
Biostratigraphical, paleoenvironmental investigations have been integrated with sedimentology, wireline-log data to establish a biostratigraphically constrained sequence stratigraphic framework of Radhuma section. Age-dating of Radhuma is defined based on biostratigraphy and supported by carbon-isotope dating as Paleocene-Eocene age, with the boundary within the upper part.
The Radhuma Formation is mainly composed of fine to coarse grained dolostone to dolomitic limestone with two intervals of anhydrite intercalated with dolostone, limestone and shales in the upper part. Upper-Radhuma showed considerable oil-shows in south Kuwait.
The multi-discipline analysis of over 600 core and cuttings samples from 9 wells has identified five 3rd order sequences in Radhuma. They are composed of transgressive and regressive unites separated by bio-based maximum flooding surface, all could be correlated regionally.
The five MFSs have been identified within the Radhuma from base to top: the RAD100_MFS is recorded based on ghosts of keeled Globorotalia spp. The RAD200_MFS is identified based on common planktonic foraminifera. The RAD300_MFS is recorded within a chalky limestone, and is indicated by the common foraminiferal planktonics. The RAD400_MFS is recorded in dolowackstone and contains flood of dolomitized miliolids indicating lagoonal environment. The RAD500_MFS is identified top part of Radhuma Formation based on foraminiferal assemblage.