Stratigraphic study of Qalqula Formation, Sulaymaniyah Governorate - NE Iraq
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Abstract
Qulqula Formation studied in Suren mountain - Sulaymaniyah- NE Iraq. 10 samples collected from the outcrop near Kani Seif Hamid area. Petrographic and mineralogical investigation carried out, thin sections, X- ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray Analysis (EDX) samples were prepared and analysed in Wollongong University-Australia. Preliminary results show that the lower part of Qulqula Formation in the studied section undergo severe recrystallization and partly dolomitized. In addition, from chronostratigraphic viewpoint, Qulqula Formation in the studied area thought to represent Late Triassic age. This study report for the first time the occurrence of Calpionellids fossils, two species were identified; Tintinnopsella remanei Borza and Calpionellites major (Colom) which represent the Late Jurassic - Early Cetaceous age (i.e. Late Tithonian - Early Valanginian respectively). This coincided with the proposed age results from previous works.
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