Abstract

"The evidence bearing on the origin of the west Cumbrian haematites is outlined, and it is concluded that the haematite mineralization is magmatic in origin and took place under thick cover, which probably included Keuper marls and Liassic shales, below the level of the local ground waters. The mineralizing solutions ascended in the older Palaeozoic rocks where these directly underlay the New Red Sandstone series to the east of the present ore field. On entering the basal members of the series the solutions migrated laterally, down dip, in a westerly direction, into areas underlain by Carboniferous rocks, where they descended principally along lines of fracture."

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