The fluvio-aeolian sediments in the alluvial plains of NW Haryana and adjoining northern Rajasthan are known to conceal a number of palaeochannels of the erstwhile Saraswati River and its tributaries,which were also t...The fluvio-aeolian sediments in the alluvial plains of NW Haryana and adjoining northern Rajasthan are known to conceal a number of palaeochannels of the erstwhile Saraswati River and its tributaries,which were also the sites for many pre-historic settlements dating back to the pre-Harappan era.Using digital remote sensing techniques like image enhancement,principal component analysis and mineral composite index mapping from Landsat ETM+data,and hydrological routing and stream network generation from DEM.展开更多
North Delhi Fold Belt(NDFB)is a part of a NNESSW trending Proterozoic mobile belt hosting sulfide mineralization in Khetri Copper Belt(KCB)towards its western margin.It preserves assemblages of amhibolite facies Barro...North Delhi Fold Belt(NDFB)is a part of a NNESSW trending Proterozoic mobile belt hosting sulfide mineralization in Khetri Copper Belt(KCB)towards its western margin.It preserves assemblages of amhibolite facies Barrovian metamorphism locally overprinted by a thermal metamorphic event.Monazite(REEPO4)is developed in both the assemblages.Detailed chemistry and chemical geochronology of monazites in regional and contact metamorphic assemblages depict distinct chemical traits and ages.展开更多
文摘The fluvio-aeolian sediments in the alluvial plains of NW Haryana and adjoining northern Rajasthan are known to conceal a number of palaeochannels of the erstwhile Saraswati River and its tributaries,which were also the sites for many pre-historic settlements dating back to the pre-Harappan era.Using digital remote sensing techniques like image enhancement,principal component analysis and mineral composite index mapping from Landsat ETM+data,and hydrological routing and stream network generation from DEM.
文摘North Delhi Fold Belt(NDFB)is a part of a NNESSW trending Proterozoic mobile belt hosting sulfide mineralization in Khetri Copper Belt(KCB)towards its western margin.It preserves assemblages of amhibolite facies Barrovian metamorphism locally overprinted by a thermal metamorphic event.Monazite(REEPO4)is developed in both the assemblages.Detailed chemistry and chemical geochronology of monazites in regional and contact metamorphic assemblages depict distinct chemical traits and ages.
