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  2. Stone picker - Wikipedia

    en.wikipedia.org/wiki/Stone_Picker

    A stone picker (or rock picker) is an implement to sieve through the top layer of soil to separate and collect rocks and soil debris from good topsoil. It is usually tractor-pulled. [1] A stone picker is similar in function to a rock windrower (rock rake); a stone picker generally digs to greater depths to remove stones and rocks.

  3. Nut (climbing) - Wikipedia

    en.wikipedia.org/wiki/Nut_(climbing)

    Two sets of nuts with a removal tool between them. In rock climbing, a nut (or chock or chockstone or wire for the smallest versions) is a metal wedge threaded on a wire that climbers use for protection by wedging it into a crack in the rock. Quickdraws are clipped to the nut wire by the ascending climber and the rope threads through the ...

  4. Lithic flake - Wikipedia

    en.wikipedia.org/wiki/Lithic_flake

    The objective piece, or the rock being reduced by the removal of flakes, is known as a core. [ 1 ] : 254, 258 Once the proper tool stone has been selected, a percussor or pressure flaker (e.g., an antler tine ) is used to direct a sharp blow, or apply sufficient force, respectively, to the surface of the stone, often on the edge of the piece.

  5. Drilling and blasting - Wikipedia

    en.wikipedia.org/wiki/Drilling_and_blasting

    Rock blasting in Finland. Drilling and blasting is the controlled use of explosives and other methods, such as gas pressure blasting pyrotechnics, to break rock for excavation. It is practiced most often in mining, quarrying and civil engineering such as dam, tunnel or road construction. The result of rock blasting is often known as a rock cut.

  6. Digging - Wikipedia

    en.wikipedia.org/wiki/Digging

    Digging, also referred to as excavation, is the process of using some implement such as claws, hands, manual tools or heavy equipment, to remove material from a solid surface, usually soil, sand or rock on the surface of Earth.

  7. Rockbreaker - Wikipedia

    en.wikipedia.org/wiki/Rockbreaker

    They are typically used in the mining industry to remove oversize rocks that are too large or too hard to be reduced in size by a crusher. Rockbreakers consist of two major components, a hydraulic hammer (used to break rocks) and a boom (the arm). There are two major types of rock breakers, mobile and stationary - typically placed on a pedestal ...

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