The Student's Handbook of Physical GeologyG. Bell, 1892 - 666 pages |
From inside the book
Results 1-5 of 31
Page 88
... an admixture of sand or siliceous matter are converted into the substance known 1 " Quart . Journ . Geol . Soc . " vol . xlii . p . 533 . as rottenstone ; the calcareous portion being eaten out and 88 [ SEC . II . DYNAMICAL GEOLOGY .
... an admixture of sand or siliceous matter are converted into the substance known 1 " Quart . Journ . Geol . Soc . " vol . xlii . p . 533 . as rottenstone ; the calcareous portion being eaten out and 88 [ SEC . II . DYNAMICAL GEOLOGY .
Page 98
... siliceous stones known as " Sarsen stones , ' grey wethers in Berkshire and Wiltshire ; these have been derived from certain sands which once covered the chalk in these and other counties , and they now lie scattered on the chalk downs ...
... siliceous stones known as " Sarsen stones , ' grey wethers in Berkshire and Wiltshire ; these have been derived from certain sands which once covered the chalk in these and other counties , and they now lie scattered on the chalk downs ...
Page 131
... siliceous rocks seldom has more than 20 parts , while that running off cal- careous rocks generally contains over 30 parts per 100,000 . The amount in ordinary river - water may be taken as about 20 parts per 100,000 , but it varies ...
... siliceous rocks seldom has more than 20 parts , while that running off cal- careous rocks generally contains over 30 parts per 100,000 . The amount in ordinary river - water may be taken as about 20 parts per 100,000 , but it varies ...
Page 206
... Siliceous Sinter . - Other therma springs contain a large quantity of silica in solution , which is deposited as the water cools and evaporates , forming layers and incrusta- tions of hard siliceous stone called Sinter . Deposits of ...
... Siliceous Sinter . - Other therma springs contain a large quantity of silica in solution , which is deposited as the water cools and evaporates , forming layers and incrusta- tions of hard siliceous stone called Sinter . Deposits of ...
Page 207
... siliceous sinter , or Geyserite , as it is sometimes called , are thus formed , one such being reported as 16 miles long , 2 furlongs wide , and 100 feet thick . An analysis by Damour showed that the sinter had the following composition ...
... siliceous sinter , or Geyserite , as it is sometimes called , are thus formed , one such being reported as 16 miles long , 2 furlongs wide , and 100 feet thick . An analysis by Damour showed that the sinter had the following composition ...
Other editions - View all
Common terms and phrases
acid action agencies altered alumina amount anticlinal augite basalt beds blocks bottom calcareous calcite called carbonate of lime carbonic acid chalk channel chemical clay cleavage cliffs coast colour consists coral cracks crystalline crystals currents débris denudation deposits depth described detrition distance district dolerite dykes earth earth's crust Edited elevation erosion eruptions fault feet felspar fissures formation formed fragments Geol Geology glacier glauconite gneiss gradually granite greensand ground hills horizontal hornblende igneous rocks iron island Jukes lakes land lava layers limestone magnesia mass material metamorphic mica miles mineral mountain occur original Orthoclase outcrop oxide particles pebbles planes porphyritic portion pressure produced quartz rain reefs ridge rise river sand sandstone schist shale shells shore side siliceous slope soil solution sometimes stones strata stratified rocks stream structure surface thickness tion tract Translated unconformity valley vertical volcanic