| Reference Type | Journal (article/letter/editorial) |
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| Title | IX.—Note on the Volcanic Agglomerate of Forkill, Co. Armagh |
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| Journal | Geological Magazine |
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| Year | 1901 (November) | Series:Volume | 4:8 |
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| Issue | 11 |
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| Publisher | Cambridge University Press (CUP) |
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| DOI | doi:10.1017/s0016756800179968 |
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| Generate Citation Formats |
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| Mindat Ref. ID | 274310 | Long-form Identifier | mindat:1:5:274310:7 |
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| GUID | 0 |
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| Full Reference | (1901) IX.—Note on the Volcanic Agglomerate of Forkill, Co. Armagh. Geological Magazine, S. 4 Vol. 8 (11) 515-516 doi:10.1017/s0016756800179968 |
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| Plain Text | (1901) IX.—Note on the Volcanic Agglomerate of Forkill, Co. Armagh. Geological Magazine, S. 4 Vol. 8 (11) 515-516 doi:10.1017/s0016756800179968 |
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| In | (1901, November) Geological Magazine S. 4 Vol. 8 (11) Cambridge University Press (CUP) |
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| Abstract/Notes | In a paper by Messrs. J. R. Kilroe and A. M'Henry, M.R.I.A., which appeared in vol. lvii of the Q.J.G.S., published last August. the following statement concerning the above rock is made: “In parts they [the rock masses] consist of brecciated slate or brecciated granite and felsite, the fragments being embedded in a scanty andesitic matrix.” Now this description is quite erroneous, the great and almost unique characteristic of the Forkill agglomerate being that the greater portion is made up of non-volcanic materials—in some places of granite pieces for the most part, in a groundmass of finely comminuted material of the same rock, and in others of Silurian slate fragments in a correspondingly derivative base. This I have described long ago in the official memoir to accompany Sheet 70 of the Geological Survey Map of Ireland, as also in the following papers: “On a Remarkable Volcanic Agglomerate near Dundalk” (J.R.G.S., Ireland, new series, vol. iv, pt. 4) and “On the Ancient Volcanic District of Slieve Gallion” (Geol. Mag., Dec. II, Vol. V, October, 1878). |
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