Principles of geology, Volume 3 |
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Page 223
... limestone rocks , which , although usually , if not always , connected with rents , are nevertheless of such forms and dimensions , alter- nately expanding into spacious chambers , and then . contracting again into narrow passages ...
... limestone rocks , which , although usually , if not always , connected with rents , are nevertheless of such forms and dimensions , alter- nately expanding into spacious chambers , and then . contracting again into narrow passages ...
Page 224
... limestone of Kentucky , in the basin of Green River , one of the tributaries of the Ohio , a line of underground cavities has been traced in one direction for a distance of ten miles , without any termination ; and one of the chambers ...
... limestone of Kentucky , in the basin of Green River , one of the tributaries of the Ohio , a line of underground cavities has been traced in one direction for a distance of ten miles , without any termination ; and one of the chambers ...
Page 225
... limestone are not liable , as in many other formations , to become closed up by impervious clayey matter , and hence a stream of acidulous water might for ages ob- tain a free and unobstructed passage . ‡ Morea . After these ...
... limestone are not liable , as in many other formations , to become closed up by impervious clayey matter , and hence a stream of acidulous water might for ages ob- tain a free and unobstructed passage . ‡ Morea . After these ...
Page 226
... limestone , as in the north of England , for example ; but in no district are they more conspicuous than in the Morea , where the phenomena attending them have been lately studied and described in great detail by M. Boblaye and his ...
... limestone , as in the north of England , for example ; but in no district are they more conspicuous than in the Morea , where the phenomena attending them have been lately studied and described in great detail by M. Boblaye and his ...
Page 227
... limestone in Greece , that rock containing in it much siliceous and ferruginous matter . Many of the Katavothra being insufficient to give passage to all the water in the rainy season , a tem- porary lake is formed round the mouth of ...
... limestone in Greece , that rock containing in it much siliceous and ferruginous matter . Many of the Katavothra being insufficient to give passage to all the water in the rainy season , a tem- porary lake is formed round the mouth of ...
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action alluvium ancient animals and plants appear aquatic aqueous become beds birds bones breccias Calanna calcareous Catania causes cetacea clay climate coast cone considerable continents coral delta deposits depth dikes distance distinct drifted earth earthquakes Eocene eruptions Etna Europe example extinct feet floods forests formations formed fossil fossil shells geographical geological geologist globe groups habitations hundred hyæna hybrid Iceland igneous imbedded inhabitants insects islands Isles lakes land latitudes lava limestone living marine marl masses Mediterranean migrations miles mineral Miocene mountains naturalists nature Newer Pliocene observed ocean organic remains origin peat peculiar peperino period Pliocene preserved quadrupeds recent reefs regions rivers rocks sand scoriæ seeds seen shores Sicily soil sometimes species strata Subapennine subaqueous submarine suppose surface terrestrial terrestrial animals terrestrial plants tertiary testacea thickness thousand trees tropical tuff Val del Bove Val di Noto valley vegetable volcanic zoophytes