XIX.—On the Distribution of Fossil Remains on the Yorkshire Coast, from the Lower Lias to the Bath Oolite inclusive.
1837; Geological Society of London; Volume: 5; Issue: 1 Linguagem: Inglês
10.1144/transgslb.5.1.223
ISSN2058-1041
Autores Tópico(s)Paleontology and Stratigraphy of Fossils
ResumoThe formations noticed in the following pages are the lias, the inferior oolite, the lower carboniferous series of Smith, and the Bath or great oolite. Lias. The lias series on the north-east coast of Yorkshire, occupies a range of lofty cliffs, varying from 100 to 600 feet in height, and extending with little interruption from the Peak Hill, near Robin Hood’s Bay, to the village of Saltburn, near Redcar. It is separable into three great divisions, 1st. the lower lias, 2nd. the marlstone, and 3rd. the upper lias or alum shale. 1. Lower Lias. —On no part of the coast is the whole of this division exhibited, or has its depth been ascertained. At the base of Rockcliff, near Staithes, it has a considerable thickness, and at Peak Hill, a section of about 300 feet is exposed. It is probable, however, that its vertical dimensions are much greater, as blue clay is brought up by ships’ anchors at a considerable distance from the shore; and as Trochus Anglicus with some other fossils, is found only among the shingle, generally much water-worn, and apparently washed up from submarine strata. At present, nothing is known of the fossils contained in those inferior beds. In the exposed portion, the marl, in the lower strata, is compact, arenaceous, and generally of a dull blue colour, whilst in the upper it is more shaly. The fossils are thinly scattered, and few in species. On the scar at Robin Hood’s Bay, near the lowest known part,
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