United States or Algeria ? Vote for the TOP Country of the Week !
Similar masses occur in North Mayo, south of Belderg Harbour. Cambrian Period. In the Pass of Llanberis, along the banks of Llyn Padarn, masses of quartz-porphyry, felsite and agglomerate, or breccia, indicate volcanic action during this stage. These rocks underlie beds of conglomerate, slate and grit of the Lower Cambrian epoch, and, as Mr.
The sands of this formation are often rippled, and were evidently left dry at low tides, so that the surface was dried by the sun and made to shrink and present sun-cracks. Oldhamia radiata, Forbes. Oldhamia antiqua, Forbes. The slates of Llanberis and Penrhyn in Carnarvonshire, with their associated sandy strata, attain a great thickness, sometimes about 3000 feet.
LONGMYND GROUP. a. Harlech Grits. b. Llanberis slates. While Sir R.I. Murchison was exploring in 1833, in Shropshire and the borders of Wales, the strata which in 1835 he first called Silurian, Professor Sedgwick was surveying the rocks of North Wales, which both these geologists considered at that period as of older date, and for which in 1836 Sedgwick proposed the name of Cambrian.
I returned to the llyn and threw myself down upon the ground, for my legs sank under me, but the dizziness of fatigue softened the effect of my distress. The rocks and peaks were swinging round my head. Soon I found the Gypsy bending over me. 'I can't find her, said she. 'We had best make haste and strike across her path as she makes for Llanberis. I have a notion as she's sure to do that.
'Probably the walk to the top and then down to Llanberis, and then on to Carnarvon, is really to take place, as originally arranged only with the slight addition that some one is to join us! I shall soon be back, either alone or with Sinfi, and then we shall know. She ran up the path. Against her wish I followed her for a time.
Before I give up this slot there ain't a path, nor a hill, nor a rock, nor a valley, nor a precipuss as won't feel my fut. Come! set to. I took the Gypsy's advice, made as hearty a breakfast as I could, and we left Llanberis in the light of morning. It was not till we had reached and passed a place called Gwastadnant Gate that the path along which we went became really wild and difficult.
Word Of The Day