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Fichier:Folding of alternate layers of limestone layers with chert layers.jpg

Creative Commons Attribution-Share Alike 4.0 truetrue English Due to the alpine fold tectonics, these sediments, which were once deposited in a deeper sea basin...


Fichier:The South Staffordshire Coalfield - Joseph Beete Jukes - 1859.djvu

(opposite page 25), see File:The South Staffordshire Coalfield - 1859 fold-out.jpg Language English Publication date 1859 publication_date QS:P577,+1859-00-00T00:00:00Z/9...