The Caledonian Structures of Shetland – Funzie and Norwick Geological Conservation Review sites |
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| Authors: | AJ Highton RML Wignall |
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| Institution: | 1. Border Geo-Science, United Kingdom;2. NatureScot, Silvan House, 231 Corstorphine Road, Edinburgh, EH12 7AT, Scotland, United Kingdom |
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| Abstract: | Locations at Funzie on the island of Fetlar, and at Norwick on the island of Unst contain excellent examples of structures relating to the Caledonian age disruption and emplacement of the Shetland Ophiolite Complex. The Caledonian age Shetland Ophiolite Complex contains exceptionally well developed and exposed sections of the lower parts of the characteristic ophiolite sequence, including layered gabbro, cumulates and mantle rock. Composed of two tectonic units (the Lower Nappe and Upper Nappe) each underlain by an imbricate zone, it is among the finest and most accessible examples of ophiolitic rocks in Europe. The sites at Funzie and Norwick have been selected to be part of the Caledonian Structures of Great Britain Geological Conservation Review (GCR) network, as the best examples in Britain of structures relating to Caledonian ophiolite disruption and emplacement. As the Funzie GCR site and the Norwick GCR site they form the Caledonian Structures of Shetland GCR block.Accounts of all other sites in the Caledonian Structures of Great Britain Geological Conservation Review (GCR) network are already published (Treagus, 1992). Accounts of the Caledonian Structures of Shetland GCR block sites are, therefore, presented in this paper to complete publication of the Caledonian Structures of Great Britain Geological Conservation Review (GCR) network. |
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| Keywords: | Geological conservation review GCR Geoconservation Funzie Norwick Fetlar Unst Shetland ophiolite complex Unst ophiolite Caledonian structures Funzie conglomerate |
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