The Quarterly journal of the Geological Society of London . o by the Authors resembled those described in theirprevious papers under the same name. Prof. Reynolds, in reply to Dr. Elsden, stated that the rocksfrom Lough Nafooey described as lime-bostonites were identical incharacter with those from Kilbride. There seemed to be lack ofagreement in the use bypetrologists of the terms lime-bostoniteand keratophyre; the Authors used the former term for anintrusive, and the latter for a contemporaneous, rock. Mr. Gtabdiner, in reply, pointed out that the lowest fossiliferousSilurian beds in the Kil


The Quarterly journal of the Geological Society of London . o by the Authors resembled those described in theirprevious papers under the same name. Prof. Reynolds, in reply to Dr. Elsden, stated that the rocksfrom Lough Nafooey described as lime-bostonites were identical incharacter with those from Kilbride. There seemed to be lack ofagreement in the use bypetrologists of the terms lime-bostoniteand keratophyre; the Authors used the former term for anintrusive, and the latter for a contemporaneous, rock. Mr. Gtabdiner, in reply, pointed out that the lowest fossiliferousSilurian beds in the Kilbride and Lough Nafooey areas were ofUpper Llandoveiy age, and corresponded to the lowest fossiliferousSilurian deposits in the Killary district. The Arenig rocks laywith the Llandeilo rocks entirely to the north of them, and theSilurian rocks to the south. It was only in the extreme west of that the Silurian deposits came to rest upon the Llandeilo grits. Quart. Journ. Geol. Soc. Vol. LXX, Pl. XVI. Fig. I. Pillow-Lava near the top of Fig 2. Pillow-Lava on the southern slopes of Bencorragh.


Size: 1866px × 1339px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1840, bookidquarte, booksubjectgeology