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Petrographic Characteristics of Injana Formation in Borehole (KH 8/9), and Their Climatic-Tectonic Implications, on Sinjar Area, NW Iraq | ||
| Rafidain Journal of Science | ||
| Article 13, Volume 16, Issue 6, 2005, Pages 158-175 PDF (0 K) | ||
| DOI: 10.33899/rjs.2005.41865 | ||
| Authors | ||
| Ahmad N. Al-Fattah; Thamer A. Aghwan | ||
| Abstract | ||
| Petrographic study of the sandstones of Injana Formation in the well (KH8/9) revealed them to consist dominantly of carbonate rock fragments with subordinate monopoly crystalline quartz, K-Na feldspars fragments, igneous–metamorphic rock fragments and mica, in addition to matrix and cement of variable composition (carbonate, iron oxide, silica and sulphates). This suits of components can be related to provenance overwhelmed by sedimentary rocks with lesser contribution of igneous and metamorphic rocks. This sandstone is mineralogically and texturally immature and of calclithite variety originated from source rock under colder conditions compared to their semi-arid environment of deposition. The tectonic setting of back – arc attributes as a consequence of plate – collision and overthrusting played a dominate role in sourcing the sediments. | ||
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