Abstract:
In Pakistan, at least fourteen U-Th-bearing mineral species occur widely distributed in sandstone, granite, pegmatite, carbonatite, and graphite schist rocks. The primary minerals are mainly associated with the acid intrusives, carbonatites and graphite schists showing the disseminated type of occurrence. Invariably, the mineralizations are associated with minor concentration of uraniferous limonite due to oxidation by weathering. Secondary U mineralization indicates wider distribution and is mainly associated with the fluviatile sandstone of Upper Miocene age. The nature of U-mineralizations and their petrogenetic significance are discussed.
Page(s):
99-108
DOI:
DOI not available
Published:
Journal: Acta mineralogica pakistanica, Volume: 5, Issue: , Year: 1991