The Quarterly journal of the Geological Society of London . Mile. Bemrose. Lithe [TON, AREA. Quart. Journ. Geol. Soc. Vol. LXIII. Pl XXII <• (Agglomerate). H. Arnold-Bemrose iav. Bern rose. Litho. GEOLOGICAL MAP OF TISSINGTON, AREA. Vol. 6^.~] THE TOADSTONES OF DERBYSHIRE. 281 which never comes to the surface in that county. If his recollectionserved, there were only two distinct lava-flows then recognized;he gathered from the paper that the Author had identified three. As regarded the volcanic beds of County Limerick, which hadbeen referred to, there could be no question about th
The Quarterly journal of the Geological Society of London . Mile. Bemrose. Lithe [TON, AREA. Quart. Journ. Geol. Soc. Vol. LXIII. Pl XXII <• (Agglomerate). H. Arnold-Bemrose iav. Bern rose. Litho. GEOLOGICAL MAP OF TISSINGTON, AREA. Vol. 6^.~] THE TOADSTONES OF DERBYSHIRE. 281 which never comes to the surface in that county. If his recollectionserved, there were only two distinct lava-flows then recognized;he gathered from the paper that the Author had identified three. As regarded the volcanic beds of County Limerick, which hadbeen referred to, there could be no question about their age. Therocks consisting of ashes and lapilli, felspathic lava and basalt,surmounted by the columnar felstone with crystals of augite, thatformed the crest of Knock Roe, were conformable to the Carboni-ferous Limestone of Mount Lawrence and passed below the YoredaleShales ; while the i pipes or throats from which the lavas wereextruded occurred as isolated bosses outside the volcanic speaker, ever since his visit and survey of the district incompany with members of his staff, had recognized the Limericktraps as representative of the volcanic la
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Keywords: ., bookcentury1800, bookdecade1840, bookidquarte, booksubjectgeology
