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Chalk mine near Scotia, Nebraska Open pit chalk quarry near Quidhampton, England. Chalk mining is the extraction of chalk from underground and above ground deposits by mining. [1] Mined chalk is used mostly to make cement and bricks. Chalk mining was widespread in Britain in the 19th century because of the large amount of construction underway ...
Footholds were cut into the sides of the shaft to allow people to climb in and out. The shaft, when the chalk is reached, widens out into a domed chamber with a roof of chalk some 3 feet thick. The walls frequently contract somewhat as they near the floor. As a rule the main chamber is 16 to 18 feet in height, beneath each shaft.
This disused chalk pit exposes a series of phosphate-rich chalk layers deposited 80 million years ago, during the Upper Cretaceous, under a warm sea which then covered a large part of Europe. The sediments provide evidence of severe earth movements in the area [ 185 ] and they are rich in macrofossils , especially belemnites .
Klondike Mountain near Republic, Washington [Note 2] Klondike Mountain Formation: Eocene (Ypresian) North America: US: Washington: Plants and Insects [Note 1] Krukowski Quarry: Cambrian: North America: US: Wisconsin: La Brea Tar Pits: Pleistocene (Rancholabrean) North America: US: California [Note 1] Hadrosaurus Foulkii Leidy Site: Woodbury ...
The oak woodland is ancient, and it provides a feeding habitat for the bats. [1] The deneholes in the wood, which were sometimes known as Cunobeline's gold mines, [7] are described by English Heritage as medieval or post-medieval and were used for chalk or flint mining. [8] The origin of these deneholes is discussed by Tony Benton. [5]
Limekiln Close and East Pit is a 10 hectare Local Nature Reserve (LNR) in Cherry Hinton, on the south-eastern outskirts of Cambridge. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire as Cherry Hinton Chalk Pits .
Devil's Dyke or Devil's Ditch is a linear earthen barrier, thought to be of Anglo-Saxon origin, in eastern Cambridgeshire and Suffolk.It runs for 11 kilometres (6.8 mi) in an almost straight line from Reach to Woodditton, with a 10-metre-high (33 ft) ditch and bank system facing southwestwards, blocking the open chalkland between the marshy fens to the north and the formerly wooded hills to ...
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.