40Ar/39Ar geochronology of phlogopites and its mineralization in the Mithapukur kimberlites: New Lower Cretaceous (∼109–115 Ma) kimberlitic occurrences in Bangladesh

• Published in: Journal of Asian Earth Sciences: X
• Main Authors: Ismail Hossain, Georgy A. Belyanin, Md. Al Rashed Azmi, Toshiaki Tsunogae
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2022
• Subjects: 40Ar/39Ar dating; Genesis; Plateau ages; Lower Cretaceous kimberlites; Bengal Basin; Geology; QE1-996.5; Indian; Upper Staircase; Antarc*; Antarctica
• Online Access: https://doi.org/10.1016/j.jaesx.2022.100094; https://doaj.org/article/e8986a2d21dd43d889b32c35e601eff4

Phlogopites in a suite of ultramafics from Bangladesh have been analyzed to ascertain the mineralization and the timing of cooling of phlogopites and reveal their emplacement tectonics. In recent times, the 40Ar/39Ar dating method is incredibly popular due to having phlogopite in most kimberlitic ro...