| Reference Type | Journal (article/letter/editorial) |
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| Title | An Analcite-bearing Tuff in the Carboniferous Limestone of Derbyshire |
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| Journal | Geological Magazine |
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| Authors | Sargent, H. C. | Author |
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| Year | 1925 (October) | Volume | 62 |
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| Issue | 10 |
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| Publisher | Cambridge University Press (CUP) |
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| DOI | doi:10.1017/s0016756800106077 |
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| Generate Citation Formats |
| Mindat Ref. ID | 280732 | Long-form Identifier | mindat:1:5:280732:8 |
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| GUID | 0 |
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| Full Reference | Sargent, H. C. (1925) An Analcite-bearing Tuff in the Carboniferous Limestone of Derbyshire. Geological Magazine, 62 (10) 462-463 doi:10.1017/s0016756800106077 |
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| Plain Text | Sargent, H. C. (1925) An Analcite-bearing Tuff in the Carboniferous Limestone of Derbyshire. Geological Magazine, 62 (10) 462-463 doi:10.1017/s0016756800106077 |
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| In | (1925, October) Geological Magazine Vol. 62 (10) Cambridge University Press (CUP) |
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| Abstract/Notes | In the course of a recent study of the microscopic characters of the pyroclastic rocks of Derbyshire, a colourless, isotropic mineral, with refractive index considerably lower than that of the balsam, was noted in a thin section of a tuff from Cressbrook Dale. The rock consists essentially of a mass of lapilli containing much yellowish basaltic glass, often partially devitrified, and many felspar laths, sometimes with straight extinction, in a cement partly of calcite, and partly of amorphous, opaque material, white or grey by reflected light, which is probably decomposed volcanic detritus, of the same nature as the “toadstone-clays” of Derbyshire. Vitro-clastic structure is abundant. |
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