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Sedimentological Study of Dokan Conglomerate in Kalakan Anicline / NE Iraq | ||
| Kirkuk Journal of Science | ||
| Article 1, Volume 14, Issue 1, 2019, Pages 192-204 PDF (1.36 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.32894/kujss.2019.14.1.13 | ||
| Authors | ||
| Ali H. Dohan* ; Sawsan H. Al-Hazaa | ||
| Department of Applied Geology, College of Science, Tikrit University, Tikrit, Iraq. | ||
| Abstract | ||
| A sedimentological characteristics of Dokan conglomerate was studied in Sulaymaniyah Governorate specifically in the Dokan region in northeastern Iraq. The study deals with four sections representing the study area; are Kani Watmman, KaniZard, Mewzha and Baloka sections. The conglomerate consist in all the sections from successive cycles of Clasts and fining upward. The thickness of each cycle ranges from a few to tens of meters. Dokan conglomerate is deposited above the Tangerio Formation in the KaneWatman and Kane Zerd sections, and on the Kometan Formation in Mewzha section and Baloka section. The contact betweenthe Formations is angular unconformity surface. The thickness of the sections in the study area are (350 m) in kani watman section, (220m) in KaniZard, (12m) in Mewzha section and (10 m) in Baloka section. The Dokan Conglomerate were divided into four Facies depending on the field rock characteristics such as color, hardness, granular size, sorting, sedimentary structures, and supported ratio, whether its supported by clast or matrix, it is composed sand stone, mudstone, orthoconglomerate and paraconglomerate lithofacies. The sedimentary environment of the area was derived using Facies analysis Which represent deposition in Alluvial Fan. This Alluvial Fan was divided into three zons, The First zone represents the nearest to the base of fan (proximal), Composed of bimodal orthoconglomerate depostes. The second zone represents the middle of fan, composed of sets of sedimentary structures such as river with channels imbricated gravel which referes to the paleocurrent direction. The third zone which is the farest from the base of the fan and consists of bolymodal conglomerate and lenses sanstone.. | ||
| Keywords | ||
| Conglomerate; orthoconglomerate; paraconglomerate | ||
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