Valleys And Their Relation to Fissures Fractures And Faults Microform
Valleys And Their Relation to Fissures Fractures And Faults Microform
G Henry George Henry Kinahan
The book Valleys And Their Relation to Fissures Fractures And Faults Microform was written by author G Henry George Henry Kinahan Here you can read free online of Valleys And Their Relation to Fissures Fractures And Faults Microform book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Valleys And Their Relation to Fissures Fractures And Faults Microform a good or bad book?
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C. Ward, when writing of the scenery of the Lake District, England ; as he says of the weathering of the hills over Derwentwater : " Numerous irregular joints and fissures assist in the work, and hence the craggy hill-sides. " The sun opens cracks and other shrinkage fissures ; and without these, as we have pointed out so often, none of the denudants can work ; yet all breaks of 1 "Mem. Geol. Survey. " The Geology of the London Basin. Part I. , p. 387. 2 "Scenery of Scotland, " pp. 35-37. 78 th...is class cannot be placed to the sun's credit, as some may be due to heat that has its source beneath the surface of the earth, while many are due to the movements in the earth's crust. If the sun acts alone or only in conjunction with wind, it is a destroyer; but when it is joined with cold and rain, the effects are modified, as all combined, cause vegetation which eventually clothes the surface of the ground with a protecting envelope. Thus it is evident that the sun ought to accomplish its maximum amount of denudation in tropical regions ; yet the amount of work done in the temperate zone must be considerable, if we may judge from what can be ob- served in Ireland, as the part the sun has taken in form- ing its present features is conspicuous.
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