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Biofacies and sedimentary environments of recent sediments ofsouthern part of Mesopotamian plain | ||
| Journal of Basrah Researches (Sciences) | ||
| Article 1, Volume 31, Issue 3, 2005, Pages 13-20 PDF (0 K) | ||
| Authors | ||
| B. Albadran; A. Al-Baidhany; | ||
| Abstract | ||
| Three boreholes were chosen, these boreholes were and distributed around Basrah region southern part of Mesopotamian plain. The depth of there boreholes ranged between 27 and 30 meters. Faunal assemblages have been identified. Two biofacies and one lithofacies have been identified; from top to bottom, biofacies A as a surface layer in the southern extremity of Mesopotamian plain. It could reflect a local transgressive period. Biofacies B underlied the first biofacies, it covers the southern part of Mesopotamian plain, this facies could indicate a subsidence period and let the environment to be isolated marked by reduction associated with pyritization. The lithofacies C underlied the second biofacies, it is observed in the southern part of Mesopotamian plain. The funa was completely absent in this biofacies and combined with the presence of gypsum grains, which means that the evaporation was high. The vertical and lateral distribution of these biofacies could be highly attributed to tectonic events in this study area. | ||
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