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Stromatolitic Horizons in the Mulussa Formation Western Desert, Iraq | ||
| Rafidain Journal of Science | ||
| Article 8, Volume 17, Issue 5, 2006, Pages 92-104 PDF (0 K) | ||
| DOI: 10.33899/rjs.2006.42820 | ||
| Authors | ||
| Abdulla S. Dawood; Thamer A. Aghwan | ||
| Abstract | ||
| Widespread occurrence of stromatolitic horizons is documented in the middle part of Mulussa Formation, of the Gaara depression western of Iraq. These stromatolitic horizons are associated with intertidal channels, fenestral (birdseye) porosity, trace fossils of Rhizocorallium, as well as chert nodules with varnished evaporites. The main petrographics constituent appeared to be calcite with radial pattern enclosed between dark algal walls, later replacement by dolomite and silica is common. Based on the sedimentary attributes and characteristic features of these stromatolitic horizons and their comparison with recent and ancient analogous, an intertidal-lagoonal environment is inferred during their deposition. | ||
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