Abstract
ABSTRACT Sedimentological studies along Horin nala section of Umthongkut area in the lower Mahadek sediments have enabled the characterization of channel and resulting sandstone body. Nine lithofacies repeat to generate multistoried sandstone bodies deposited in channel belts. Lithofacies types identified were grouped into facies assemblages and into three different architectural elements. Based on the architectural elements the depositional palaeo-environment, resemble multichannel, low sinuosity braided system, considered as the product of the complex evolution of a fluvial fan segment. Palaeo-current data analysis indicates a low sinuosity river system with consistent current directions pointing toward south. The provenance for the sandstone type uranium mineralisation is primarily related to the basement crystalline rocks like granite and granite-gneisses, which apparently supplied the uranium. As the channel fills tend to have more porosity due to difference in the sizes of grains and clasts and with the tendency of concentration of more organic matter along these loci, the interaction of mineralizing fluids along with the reductants caused the precipitation of the uranium.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
