A Reconnaissance Study of Rare Earth Elements Systematic in Phosphate Coprolites: Comparison between Continental Shelf and Intracontinental Basin Deposits. Iraqi Journal of Science [Internet]. 2022 Jun. 30 [cited 2024 May 1];63(6):2566-81. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/4542