The Gneisses of the Bartica Assemblage, British Guiana
By: Cannon, R.T
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Material type: ![Article](/opac-tmpl/lib/famfamfam/AR.png)
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Item type | Current location | Collection | Call number | Status | Date due | Barcode |
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Library and Information Centre Periodical Section | Bound Journal Collection | Not for loan | 002547_24 | ||
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Library and Information Centre Periodical Section | Bound Journal Collection | 550 GEO (Browse shelf) | Available | 002547 |
The results of an examination of one quarry within the gneisses of the Bartica Assemblage are described and the validity of these results throughout the whole of the Bartica Assemblage is discussed. The foliation and banding of the gneisses at Kereti Quarry are mainly the results of tectonism; concomitant metamorphism within the Amphibolite Facies was succeeded by a two-phase metasomatism involving successive additions of Na and K. These results appear valid throughout the Bartica Assemblage and it is further suggested that the main rock type distribution in the Bartica Assemblage is also controlled by tectonism.
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