![]() ![]() The continents were still joined and there was no North Sea or Atlantic Ocean. 318-332 million years ago, when what is now western Europe was situated in the latitude of the equator, a huge mountain chain spread over what is now Scandinavia. This submarine cliff was buried by the onset of deposits of the Millstone Grit delta from the north and is only seen today because it has been re-exposed by tens of millions of years of erosion.Ĭlose-up of the Mam Tor Sandstones. The wide vale of Hope, underlain by the Edale Shales (a mudstone) emphasised the contrast with the steep limestone cliff, which is a former coral reef (apron reef), formed about 350m years ago, which sloped down into the deep water in which the Edale Shales were being deposited. ![]()
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