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Exploring for subsurface Mineral accumulations using Remote Sensing Imagery (RSI) interpretation had its beginning in detecting: Hydrocarbon seeps, Rock Alterations, Structural or Lineaments. Hydrocarbon seeps are direct indicators of subsurface Petroleum accumulations, Mineral Alteration studies indicate the source of hydrothermal alteration, structural and lineament analysis gives the potential for Mineral accumulation. RSI use is one of the key methods for understanding the surface and subsurface Mineralization: potential, genesis and quality without drilling. The detection process involves the integration of geospatial data from a variety of formats and a numerous sources. TDW FOSS Geo-stack presents a stackable package that allows for the: storage, visualization and analyses of geospatial data. This Free and Open Source Software (FOSS) solution integrates an extensible geospatial database, visualization tools, analysis, and metadata handling tools. TDW FOSS Geo-stack can be deployed from a 64 GB USB stick or within a Virtual Machine environment. Preliminary case studies involving the detection of Hydrocarbon Seeps, Mineral Alteration, Structures and Lineaments will be discussed using: SQLite/SpatiaLite, Quantum GIS, Optics, GeoNetwork.