A guide to Belfast and the counties of Down & Antrim . local slips may occur, so that inplaces the road is often rendered impassable in winter,particularly between Carnlough and Glenarm, and aroundGarron Point. In White Park Bay, beds of Middle Lias occur (Ballintoybeds), containing Ammonites Ilenleyi, Belemnites uvibilicatus,Plicatula spinosa. Occasionally sections of the Middle Liasmay be found exposed along the banks of the small stream,but usually the strata are obscured under surface slips. Thestorm of 1896 stripped the sand from the shore in White Park Straiigrapliical Geology. 83 Bay, r
A guide to Belfast and the counties of Down & Antrim . local slips may occur, so that inplaces the road is often rendered impassable in winter,particularly between Carnlough and Glenarm, and aroundGarron Point. In White Park Bay, beds of Middle Lias occur (Ballintoybeds), containing Ammonites Ilenleyi, Belemnites uvibilicatus,Plicatula spinosa. Occasionally sections of the Middle Liasmay be found exposed along the banks of the small stream,but usually the strata are obscured under surface slips. Thestorm of 1896 stripped the sand from the shore in White Park Straiigrapliical Geology. 83 Bay, revealing the basement of Lias over a considerable area. At Portrush, beds of Lower Lias occur on the shore nearthe ladies bathing place. This rock has a classic reputa-tion, as it was one of the arguments adduced by theNeptunists, about 1799, to prove the aqueous origin of thebasalt. The rock is a dark indurated shale, breaking witha conchoidal fracture, frequently across the planes of lam-ination, so that in hand specimens it was easily mistaken for. INr)UKA I 1 basalt. It contains, however, numerous fossils—chieflyammonites—along certain zones, but these are very difficultto extract, owing to the splintery nature of the rocks are to be observed in The Skerries, a smallgroup of islands off the coast at Portrush. The unusualcharacter assumed by the Lias in these localities is due tothe hardening and baking produced by the neighbouringmasses of basalt and dolerite. Only the Lower and Middle beds of the Lias are repre-sented in Ireland, the Upper Lias being absent; but it is 84 Guide to Belfast. interesting to note that, among Lower and Middle Liasspecies occurring as derived fossils in boulder-clay inCo. Dublin, Messrs. Sollas and Praeger found one speciesof characteristic Middle Lias age.^ The Cretaceous rocks of this system are a very remarkable featurearound the edge of the Antrim escarpment. In placesthe white chalk forms the strongest contrasts w
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