Mineral investigations near Bodmin, Cornwall. Part 4, drilling at Royalton Farm
Beer, K.E.; Turton, K.; Ball, T.K.. 1986 Mineral investigations near Bodmin, Cornwall. Part 4, drilling at Royalton Farm. British Geological Survey, 20pp. (WF/MR/86/082) (Unpublished)Before downloading, please read NORA policies.
Fourteen inclined percussive drillholes have shown that weak tin mineralisation persists into the hangingwall slates of the Royalton elvan for a distance of at least 50 m. Geochemically anomalous tin values are recorded along the full strike length of the former opencast workings of the Old Castle-an-Dinas Mine, but the richest concentrations are found near the western, circular-shaped pit. Even here, the grades rarely reach economically interesting levels, and then only over intervals of 1.5 m. Immediately east of the openworks there is a marked enrichment in copper and nickel, but at levels well below those of economic significance.
|Item Type:||Report (UNSPECIFIED)|
|Programmes:||BGS Programmes > Other|
|Additional Information:||This item has been internally reviewed but not externally peer-reviewed|
|NORA Subject Terms:||Earth Sciences|
|Date made live:||28 Oct 2010 13:26|
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