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The Quarterly journal of the Geological Society of London . Quart, Journ. Geol, Soc. ToL LIY. PI. Vol. 54.] THE BALA. & OTHER ROCKS OF 135 9. The Bala. Beds and Associated laNEOTis Rocks of Lambay Island, Co. Dublin. By C. I. Gardiner, Esq., , , and S. H. Reynolds, Esq., , (Read December 1st, 1897.) [Plate IX—Map.] Contents. Page I. Introduction 135 II. The Sedimentary Rocks 13o III. The Igneous Rocks 140 (a) The Fragmental Rocks 140 (6) The Andesitic Rocks 142 (c) The Coarse Porphyrite 145 IV. Conclusions 147 I. Introduction. Lambay Island lies off the East
The Quarterly journal of the Geological Society of London . Quart, Journ. Geol, Soc. ToL LIY. PI. Vol. 54.] THE BALA. & OTHER ROCKS OF 135 9. The Bala. Beds and Associated laNEOTis Rocks of Lambay Island, Co. Dublin. By C. I. Gardiner, Esq., , , and S. H. Reynolds, Esq., , (Read December 1st, 1897.) [Plate IX—Map.] Contents. Page I. Introduction 135 II. The Sedimentary Rocks 13o III. The Igneous Rocks 140 (a) The Fragmental Rocks 140 (6) The Andesitic Rocks 142 (c) The Coarse Porphyrite 145 IV. Conclusions 147 I. Introduction. Lambay Island lies off the East Coast of Ireland, some 10 milesnorth of Dublin, the nearest point on the mainland being in thedistrict of Portraine, where there occurs an inlier of Bala rockswhich we have already described.^ The name of Lambay is probably familiar to geologists from theoccurrence there of the Lambay porphyry, a very handsome andstriking rock, described in detail by Von Lasaulx ^ and mentionedin many geological and petrological works.^ It was with the intention of investigating the occurrence ofthis rock i
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Keywords: ., bookcentury1800, bookdecade1840, bookidquarte, booksubjectgeology