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Excessive instream sand mining is a threat to bridges, river banks and nearby structures. Sand mining also affects the adjoining groundwater system and the uses that local people make of the river. Instream sand mining results in the destruction of aquatic and riparian habitat through large changes in the channel morphology.

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Mar 11, 2014· illegal sand mining ppt 1. presented by snehal thomas roll illegal river sand mining 2. sand mining • sand mining is a practice that is used to extract sand. • sand is mined from beaches, and from ocean beds and river beds. • it is often used in manufacturing cement , construction purposes etc.. 3.

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Sand mining is the extraction of sand, mainly through an open pit but sometimes mined from beaches and inland dunes or dredged from ocean and river is often used in manufacturing, for example as an abrasive or in is also used on icy and snowy roads usually mixed with salt, to lower the melting point temperature, on the road can replace eroded coastline.

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Illegal sand mining ppt SlideShare. illegal sand mining ppt 1. presented by snehal thomas roll 300 illegal river sand mining 2. sand mining • sand mining is a practice that is used to extract sand. • sand is mined from beaches, and from ocean beds and river beds. • it is often used in manufacturing cement , construction purposes etc..

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Garnet is an abrasive mineral found in the form of sand particles on the surface of sea shores and river banks. The Garnet sand particles are mixed and embedded in the sea shores in the form of placer deposits – A free PowerPoint PPT presentation (displayed as a Flash slide show) on id: 63f7b7YWIxO

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Illegal Sand Mining In India Sand mining is the extraction of sand through an open pit but sometimes mined from inland dunes from oceans ,riverbeds and beaches. It is defined under section 3(e) of mines and mineral development and regulation act,1957(mmdr act) .this law has been implemented by the government to prevent illegal mining.

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Mar 11, 2014 · illegal sand mining ppt 1. presented by snehal thomas roll 300 illegal river sand mining 2. sand mining • sand mining is a practice that is used to extract sand. • sand is mined from beaches, and from ocean beds and river beds. • it is often used in manufacturing cement, construction purposes etc.. 3. learn more

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River Sand Mining in Southern Sri Lanka and its Effect on Environment Ranjana U. K Piyadasa and Navarathna Department of Geography, University of Colombo, Colombo, Sri Lanka Department of Agricultural Engineering, University of Ruhuna, Mapalana, Sri Lanka

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