4611 x 5835 px | 39 x 49,4 cm | 15,4 x 19,5 inches | 300dpi
Altre informazioni:
The island of Ireland comprises a large central lowland of limestone with a relief of hills surrounded by a discontinuous border of coastal mountains which vary greatly in geological structure The mountain ridges of the south are composed of old red sandstone separated by limestone river valleys Granite predominates in the mountains of Galway Mayo and Donegal in the west and north west and in Counties Down and Wicklow on the east coast while a basalt plateau covers much of the north east of the country The central plain which is broken in places by low hills is extensively covered with glacial deposits of clay and sand It has considerable areas of bog and numerous lakes The island has seen at least two general glaciations and everywhere ice smoothed rock mountain lakes glacial valleys and deposits of glacial sand gravel and clay mark the passage of the ice
