The Student's Handbook of Physical GeologyG. Bell, 1892 - 666 pages |
From inside the book
Results 1-5 of 88
Page 4
... containing fossil remains can be as- signed to its proper place in the geological series . There are few formations that are entirely destitute of fossils , and in districts where the relative position of the rock - groups is for any ...
... containing fossil remains can be as- signed to its proper place in the geological series . There are few formations that are entirely destitute of fossils , and in districts where the relative position of the rock - groups is for any ...
Page 17
... containing dis- solved gases is supported by much geological evidence . Steam and gases of various kinds are given off in large quantities during volcanic eruptions . The observations of Siemens on Vesuvius in 1878 , and of Fouqué on ...
... containing dis- solved gases is supported by much geological evidence . Steam and gases of various kinds are given off in large quantities during volcanic eruptions . The observations of Siemens on Vesuvius in 1878 , and of Fouqué on ...
Page 29
... containing less gaseous matter , generally has a crust that is wrinkled and twisted into ropy forms , such as are ... contain , which varies from about 45 to 80 per cent . Those with a high proportion of silica are known as acid lavas ...
... containing less gaseous matter , generally has a crust that is wrinkled and twisted into ropy forms , such as are ... contain , which varies from about 45 to 80 per cent . Those with a high proportion of silica are known as acid lavas ...
Page 30
... contain but little steam or gas , or else they part with it in a less explosive manner . Lastly , as to the temperature of lavas at the moment of issue , there is little doubt that this differs in different cases and places , but its ...
... contain but little steam or gas , or else they part with it in a less explosive manner . Lastly , as to the temperature of lavas at the moment of issue , there is little doubt that this differs in different cases and places , but its ...
Page 67
... containing recent marine shells have been met with at many localities , and at various heights , from 10 to 200 feet . Between Stock- holm and Gefle there are deposits containing shells of the 1 66 ' Principles of Geology , " tenth ...
... containing recent marine shells have been met with at many localities , and at various heights , from 10 to 200 feet . Between Stock- holm and Gefle there are deposits containing shells of the 1 66 ' Principles of Geology , " tenth ...
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