Open-air Studies in Geology |
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Page 31
... pebbles , and often a good deal of fine sand . At first it looks as if these materials had been washed down and had ... pebble in the hole , and we can move it round and round when we reach down to it with our fingers . The fact is ...
... pebbles , and often a good deal of fine sand . At first it looks as if these materials had been washed down and had ... pebble in the hole , and we can move it round and round when we reach down to it with our fingers . The fact is ...
Page 32
... pebbles lodged either in hollows on their exposed surfaces or between the joints of the stones . " The Severn , in ... Pebble - Worn Stones taken from the Apron of the Holt - Fleet Weir on the River Severn , ” Quart . Journ . Geol . Soc ...
... pebbles lodged either in hollows on their exposed surfaces or between the joints of the stones . " The Severn , in ... Pebble - Worn Stones taken from the Apron of the Holt - Fleet Weir on the River Severn , ” Quart . Journ . Geol . Soc ...
Page 33
... pebbles . A But Of course some materials of the earth rapidly go to pieces under this rough treatment , and hence the pebbles may not fairly represent all the different rocks that have fallen into the flowing stream . We may have only ...
... pebbles . A But Of course some materials of the earth rapidly go to pieces under this rough treatment , and hence the pebbles may not fairly represent all the different rocks that have fallen into the flowing stream . We may have only ...
Page 34
... often a little beach of sand ; even here the wind beats the lake up into waves and so manufactures pebbles on the shore . The place where the stream runs out is often difficult to trace , since the water escapes 34 OPEN - AIR STUDIES.
... often a little beach of sand ; even here the wind beats the lake up into waves and so manufactures pebbles on the shore . The place where the stream runs out is often difficult to trace , since the water escapes 34 OPEN - AIR STUDIES.
Page 50
... pebbles , and sand , stretching away into the open valley . Wherever glaciers are at present smaller than they have been in the past , we see the old lateral moraines , like the walls of some ancient fortification , on either side of us ...
... pebbles , and sand , stretching away into the open valley . Wherever glaciers are at present smaller than they have been in the past , we see the old lateral moraines , like the walls of some ancient fortification , on either side of us ...
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Common terms and phrases
alluvial alluvium Alps andesite augite banks basalt become beds beneath blocks calcium carbonate Chalk character CHARLES GRIFFIN chemical clay cliffs coast colour cone Cretaceous Crown 8vo crust crystalline crystals denudation deposits dykes earth Engineer Eocene escarpment EXETER STREET feet felspars flint flow folded fossils Fully Illustrated Geol Geology glacier glass gneiss grains granite Handsome Cloth hills hollow Hornblende igneous iron Juras Jurassic lake Lake Bonneville land Large 8vo lava layers Leith Hill limestone LONDON lower marine mass material Mesozoic mica miles minerals Miocene mountain occur orthoclase oxide pebbles plain plane Plates Pliocene Practical produced Professor pyroxene quartz region Revised rhyolite ridge rise river rock round salts sand sandstone SECOND EDITION seen shells side silica slope specific gravity steep stones STRAND strata stream structure summit surface TEXT-BOOK unconformity upper valley volcanic Wealden wind
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