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i was on my local bulding site in wigan,highfield when i came across a salt rock [picture below] how old is it and how was it made and why in wigan
It is carboniferous in age, but appart from that I dont know anything else about it.
i though its permian / triassic ? with research as there was a sea in wigan which spread to yorkshire and in the permisn period and it kept evoparating and it left salt which gradually turned to salt rock is that true