GEOBINGO: THE

STANAGE EDGE MATLOCK LIMESTONE

THE WINKING MAN BROWN END QUARRY

SPEEDWELL CAVERN CAVERN

HOW TO PLAY ;l Send us your #geoselfie at each site, completing a line of three sites, horizontally, vertically or d diagonally. The middle square can be used for any of the pictured sites – or any other favourite geosite! All entries received before 31 October 2014 will be entered into our Earth Science Week prize draw....

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MAM TOR is made of rocks MATLOCK is the county town STANAGE EDGE, or Stanage of Carboniferous age, approx of , . It is (from "stone edge") is a 320 million years old. The situated at the south eastern gritstone escarpment in the base is composed of black edge of the Peak District. Peak District, England, famous shales, overlain by tubiditic Matlockite, a rare lead halide as a location for climbing. sandstone. The summit of mineral, is named after the Areas of Stanage were Mam Tor is encircled by a town, where it was first quarried in the past to produce late Bronze Age and early discovered. grindstones, and some can still Iron Age hill fort. be seen on the hillside— carved, but never removed.

THE WINKING MAN is part BROWN END was quarried for of an outcrop of rocks called limestone – largely by hand - Ramshaws Rocks, made of from the mid 18th Century the Carboniferous sandstone until 1950, when its inclusion (‘gritstone’) typical of the within the Peak National Park area. The face shape in the restricted further work. rocks appears to wink as Quarrying finally ceased in the drivers pass on the A53. mid 1960's.

SPEEDWELL CAVERN is a large Castleton is well known for its PEAK CAVERN is also known cave system formed in Blue John deposits; a fluorspar as the Devil’s Arse, owing to Carboniferous limestone, found in the Carboniferous the flatulent-sounding noises known for a system of flooded limestone outcrops of this part caused by water draining underground passages of Derbyshire. BLUE JOHN away. It is the largest cave accessible by boat. It is MINE extends deep into the system in the Peak District, entered through a horizontal hillside, and is still worked in with the largest cave lead miner’s passageway small amounts outside the entrance in Britain, and is driven into the hillside. tourist season. almost entirely natural.

Remember, rocks aren’t always as stable as they appear! Please take care when visiting sites, and seek specialist advice where appropriate.

Field work codes and resources can be found on our website at www.geolsoc.org.uk/resources

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