 | Sir Francis Leopold M'Clintock - 1859 - 504 Seiten
...most part devoid of fossils. The average dip of the Silurian limestone varies from 0° to 5° NNW, and it forms occasionally high cliffs, and occasionally...scale. Alternations of hard limestone and soft shale, so characteristic of the Upper Silurian beds of England and America, arranged in horizontal layers,... | |
 | Royal Geological Society of Ireland - 1860 - 414 Seiten
...into a chalky limestone, of a cream colour, for the most part devoid of fossils. The average dip of the Silurian limestone varies from 0° to 5° NW,...of the ice as the ground rose from beneath the sea. , stone, and would strike even an observer who was not a geologist. This resemblance to the Upper Silurian... | |
 | Geological Society of Dublin - 1860 - 422 Seiten
...colour, for the most part devoid of fossils. The average dip of the Silurian limestone varies from Oc to 5° NW, and it forms occasionally high cliffs,...of the ice as the ground rose from beneath the sea. stone, and would strike even an observer who was not a geologist. This resemblance to the Upper Silurian... | |
 | Geological Survey of Canada - 1887 - 1088 Seiten
...most part devoid of fossils. The average clip of the Silurian limestone varies from 0° to 5° NNW, and it forms occasionally high cliffs, and occasionally...Silurian beds* extends to the structure of the rocks on a large scale. Alternations of hard limestone and soft shale, so characteristic of the Upper Silurian... | |
| |
... earthy limestone, abounding in fossils, and occasionally into a chalky limestone, of a cream colour, for the most part devoid of fossils. The average dip of the Silurian limestone varies from 0° to 5° NNW, and it forms occasionally high cliffs,... 