Petrographic observations of the sediments of the Upper Magnesian Limestone reveal that the main lithologies are the "dolomitized" carbonate mud and ooliths, bioclasts are not generally common. Stromatolites and depositional laminations together with massive beds are common in the formation. Apart from psuedo-pellets (of diagenetic origin), no depositional pellets have been recognized. The variations in the lithologies of the formation, the absence of pelletoidal sediments and the general lack of preserved fauna together with the presence of sulphates suggests that the environment of deposition was characterized by saline waters. The energy of depositional currents ranged from low to vigorous. Therefore, the sediments are believed to have accumulated in a shelf area of shallow depth with only temporary restriction of circulation.
| Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:595656 |
| Date | January 1982 |
| Creators | Al-Rekabi, Yasser S. |
| Publisher | University of Dundee |
| Source Sets | Ethos UK |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
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