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Description: | A piece of dark grey fine grained well sorted shale. On the surface of the shale are pronounced areas of iron oxide which are brown/orange in colour. These may have formed where the graptolites which are found within the shale are present. These are typically elongated in shape and rounded in profile. They measure up to 29mm x 10mm. The matrix is covered in iron oxide staining on the sides. The surface of the shale is uneven with circular depressions. This is a piece of Moffat Shale. The specimen was collected from the Moffat Shale Group, Dobb's Lynn, near Moffat, Dumfries and Galloway, Scotland (grid ref NT 19624 15680) and is Late Ordovician to Early Silurian in age. Specimen collected on 08/04/2010. AR/CB
An example of shale with oxidation from Dumfries and Galloway, Scotland which is approximately 443 million years old | License: | http://creativecommons.org/licenses/by/2.0/uk/ | Publisher: | Dudley Museums Service | Rights holder: | Dudley Museums Service | Subjects: | Geology | Temporal: | Ordovician (Upper) - Silurian (lower) | Source: | Black Country History | Identifier: | http://www.blackcountryhistory.org/colle... | Go to resource |
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