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Flint mining is the process of extracting flint from underground. Flint mines can be as simple as a pit on the surface or an area of quarrying , or it may refer to a series of shafts and tunnels used to extract flint .
A piece of flint 9–10 cm (3.5–3.9 in) long, weighing 171 grams. Flint, occasionally flintstone, is a sedimentary cryptocrystalline form of the mineral quartz, [1] [2] categorized as the variety of chert that occurs in chalk or marly limestone. Historically, flint was widely used to make stone tools and start fires.
The site is dotted with millions of scraps of worked flint and numerous mining pits, that Neolithic settlers have gradually turned into vertical mine shafts to depths of over 10 m (33 ft). Underneath is an elaborate man-made network of caverns accessible via the many shafts.
The site is remarkably well preserved, despite agricultural activity over parts of it, and the digging of shafts for coal mining in some areas. At the time of the site's nomination as a National Historic Landmark, detailed examination of the site for specific work areas had not taken place; the entire site is covered with chipped and flaked stone.
Grime's Graves is a large Neolithic flint mining complex in Norfolk, England.It lies 8 km (5.0 mi) north east from Brandon, Suffolk in the East of England.It was worked between c. 2600 and c. 2300 BCE, although production may have continued through the Bronze and Iron Ages and later, owing to the low cost of flint compared with metals.
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Pages in category "Mining equipment" ... Circle-throw vibrating machine; Clamshell bucket; Coal homogenization; Conveyor bridge; Corf (mining) Crusher; Crushing plant; D.
Principle of rope-shovel operation [1]. A power shovel, also known as a motor shovel, stripping shovel, front shovel, mining shovel or rope shovel, [2] is a bucket-equipped machine usually powered by steam, diesel fuel, gasoline or electricity and used for digging and loading earth or fragmented rock and for mineral extraction. [3]
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