Acknowledgements
The authorities of the State Company of Geological Survey and Mining of Iraq are acknowledged for supporting the field work and related matters. We are thankful to the authorities of the College of Science at Salahaddin University in Iraq for their support. Thanks to Dr. Anis B. Naom, Professor of English language (University of Mosul, Iraq) for reading the final version of the manuscript from language standpoint. The first two authors express their deep sorrow and condolences to the family and friends of the third author who was deceased due to an unfortunate ambiguous event during the processing period of the manuscript.