The Sea-coast: (1) Destruction (2) Littoral Drift (3) ProtectionLongmans, Green, and Company, 1902 - 361 páginas This title deals with the effects of erosion and littoral drift on the English and continental coast-lines bordering the North Sea, and outlines protective measures including sea-walls and groynes. |
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Página 22
... pebbles being deposited at the top of the beach above the level of mean high water , the sand being placed below this , and the alluvial matter carried to the depths of the sea . Owing to the sorting action of the waves , material of ...
... pebbles being deposited at the top of the beach above the level of mean high water , the sand being placed below this , and the alluvial matter carried to the depths of the sea . Owing to the sorting action of the waves , material of ...
Página 25
... pebbles on most of the beaches are different in character to those on the Chesil Bank , and very limited in quantity , and that there is no con- tinuance of the drift for any great distance , its progress being stopped in the bays by ...
... pebbles on most of the beaches are different in character to those on the Chesil Bank , and very limited in quantity , and that there is no con- tinuance of the drift for any great distance , its progress being stopped in the bays by ...
Página 26
... pebbles of which the shingle is com- posed may be traced as having been derived from the chalk ; they are most of them rounded , but scarcely any have the flat oval shape that is common to pebbles on most shingle banks . Many are quite ...
... pebbles of which the shingle is com- posed may be traced as having been derived from the chalk ; they are most of them rounded , but scarcely any have the flat oval shape that is common to pebbles on most shingle banks . Many are quite ...
Página 27
... pebbles . The flints derived from the waste of chalk cliffs are invariably black with a white exterior , while the colours of the majority of the flint pebbles forming the large accumulations of shingle , such as those at Hurst , the ...
... pebbles . The flints derived from the waste of chalk cliffs are invariably black with a white exterior , while the colours of the majority of the flint pebbles forming the large accumulations of shingle , such as those at Hurst , the ...
Página 32
... pebbles is due to the constant friction and rubbing to which they are exposed while being drifted backwards and forwards along the beach . Friction increases directly with the weight , and therefore as the cube of the diameter of the pebble ...
... pebbles is due to the constant friction and rubbing to which they are exposed while being drifted backwards and forwards along the beach . Friction increases directly with the weight , and therefore as the cube of the diameter of the pebble ...
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The Sea-coast: 1. Destruction, 2. Littoral Drift, 3. Protection William Henry Wheeler Vista completa - 1902 |
Términos y frases comunes
12 feet 20 feet alluvium angle bank of shingle basalt beach in front beach material Blackpool boulder clay boulders Bridlington carried chalk chalk cliffs channel chert clay coast coast-line composed concrete considerable constructed Crown 8vo denudation deposited depth derived direction distance dunes east effect entrance erected erosion estuary extends face feet high Felixstowe flints flood tide foot gravel groynes harbour headland heavy gales height high tides high water Humber Illustrations inches in diameter island jetty Kilnsea land length limestone littoral drift London Clay low groynes low water marshes mile wide Morecambe Bay on-shore gales pebbles pier piles placed planking promenade protection quantity quartzite rise river rocks sand and shingle sand-hills sandstone sandy sea-wall seaward shingle and sand shingle-bank shore slope spit spring tides Spurn Point stones surface tidal timber varying wall washed waves breaking width wind Withernsea yards wide
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