| Reference Type | Journal (article/letter/editorial) |
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| Title | Notes on the Millstone Grit of the North Crop of the South Wales Coalfield |
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| Journal | Geological Magazine |
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| Authors | Evans, D. G. | Author |
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| Jones, R. O. | Author |
| Year | 1929 (April) | Volume | 66 |
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| Issue | 4 |
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| Publisher | Cambridge University Press (CUP) |
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| DOI | doi:10.1017/s0016756800100160 |
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| Generate Citation Formats |
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| Mindat Ref. ID | 245652 | Long-form Identifier | mindat:1:5:245652:6 |
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| GUID | 0 |
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| Full Reference | Evans, D. G., Jones, R. O. (1929) Notes on the Millstone Grit of the North Crop of the South Wales Coalfield. Geological Magazine, 66 (4) 164-177 doi:10.1017/s0016756800100160 |
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| Plain Text | Evans, D. G., Jones, R. O. (1929) Notes on the Millstone Grit of the North Crop of the South Wales Coalfield. Geological Magazine, 66 (4) 164-177 doi:10.1017/s0016756800100160 |
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| In | (1929, April) Geological Magazine Vol. 66 (4) Cambridge University Press (CUP) |
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| Abstract/Notes | The precise age of the Millstone Grit of South Wales has been in doubt for some years. Although it has been shown to be of Upper Carboniferous age, it has been uncertain whether the whole of the earliest part of the Upper Carboniferous is represented by deposits in southern Britain. Some part of the Millstone Grit of Pembrokeshire has been regarded, on the basis of its flora, as of Middle Coal Measure or Yorkian age (Goode, 1913, p. 272). Similar conclusions have been reached by Dr. R. Crookall concerning part of the Millstone Grit of Somerset (1925, p. 403). As yet, the flora characteristic of the Lanarkian of northern Britain has not been proved to be present in South Wales and elsewhere in south Britain. On the other hand, it has been argued that the absence of a Lanarkian flora does not necessarily imply an important break in the sequence, since recent work on the lamellibranch fauna of various British coalfields points to the conclusion that the lowest part of the Lower Coal Series of South Wales is of approximately the same age as the Lower Coal Measures of northern England (Davies and Trueman, 1927, p. 253). |
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