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Showing posts from November, 2024

Explore the Earth, Maps and Satellite Images

Google Maps and Google Earth are very common platforms today to explore maps and satellite images of the earth. But there are many other ways to explore the earth. Some are listed here.  1.   Earth Explorer This map is developed by USGS helpful to obtain earth imagery across available geo-spatial data types. Users can navigate via interactive map or text search to obtain Landsat satellite imagery, Radar data, UAS data, digital line graphs, digital elevation model data, aerial photos, Sentinel satellite data, some commercial satellite imagery including IKONOS and OrbView3, land cover data, digital map data from the National Map, and many other datasets. Users can search by exact location via the interactive map or input specific coordinates to view what data types are available. 2.   Sentinel Hub This platform developed by  Sinergise has Sentinel, Landsat, and other Earth observation imagery easily accessible for browsing, visualization and analysi...

Mineral Resources in Nepal

  Mineral Resources of Nepal •         Mineral deposits in Nepal Himalaya are controlled by particular geological conditions and tectonics. •         Till the date, economic potential of 63 mineral commodities from Nepal have been established (DMG 2004,2011) •         The geological processes that are responsible for concentration of these diffused elements/ scattered minerals into economic deposits are magmatic concentration, sublimation, contact metasomatism, hydrothermal processes, sedimentation, evaporation, residual and mechanical concentration, surficial oxidation and supergene enrichment and metamorphism. •         Some metallogenic provinces have been recognized within Nepal as uranium, copper-lead-zinc, tin-tungsten molybdenum, nickel-cobalt, goldiron- copper sulphides, magnesite-talc, limestone-dolomite, precious-semipreciou...

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