Mining Methods  Generally Coal is being mined by two main methods –  1. Surface or ‘Opencast’ mining  2. Underground mining.  The choice of method is largely determined by the depth, thickness and no. of coal seams, geology of the coal deposit and other factors.  Reconnaissance Survey  To plan for winning any coal deposit, the required data/Information is  1. Geological Report of the Block  2. Surface features exists in and around the deposit  1.Geological Report / Geo-Model    ◾Geological Report will be generated basing on the detailed exploration of the deposit.  ◾The Borehole data generated with detailed exploration will be used for preparation of Geological Report.  ◾Many soft wares are available for generating geological report and the report generated through soft ware is called Geo-Model.  ◾ MINEX, SURPAC, DATAMINE are some of the soft wares currently being used for preparation of Geo-model  What is...

    Introduction  ◾Mining is the second industry to develop after civilization invented farming . ◾It has played a key role in development of the early civilization and has been contributing to our Modern world since the early days. ◾ Mining is basically extraction of any naturally occurring mineral substance, whether solid, liquid or gas from the earth for utilitarian purposes.  Terminology  ◾  Mine  - Excavations made in earth for the purpose of extracting minerals. ◾  Mining  - Activity concerned with the extraction of the minerals from earth. ◾  Minerals  - A naturally occurring inorganic element or compound having an orderly internal structure and a characteristic chemical composition crystal form and physical properties.