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Biostratigraphy of shirranish formation, well DD.1 (N. Iraq) | ||
| Bulletin of the Iraq Natural History Museum | ||
| Article 1, Volume 9, Issue 1, 2002, Pages 93-109 | ||
| Author | ||
| Sadi K. Jan | ||
| Abstract | ||
| Shiranish formation has been divided into two microfacies units: 1 - Many biowackestone facies and 2 - maly packstone using planktonic foraminifera and other carbonate components in the rock cutting and core slides. Microfacies reflect marin deep shelf margin in the lower part of the formation, the upper part was deeper. The thickness of the formation is determined, depending on addition to the presence of echinoderm framents debris and spines. This is in disagreement with the 195 ft thickness reported by the Oil Exploration Company The age of the formation is estimated depending on the recognized biostratigraphic zone using the index fossils to be Upper - Middle Mastrichtion. | ||
| Keywords | ||
| shirranish formation; WELL DD | ||
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