MAKE A MEME
View Large Image
| View Original: | The_Quarterly_journal_of_the_Geological_Society_of_London_(13365798124).jpg (1252x2073) | |||
| Download: | Original | Medium | Small | Thumb |
| Courtesy of: | commons.wikimedia.org | More Like This | ||
| Keywords: The Quarterly journal of the Geological Society of London (13365798124).jpg of one will also apply to the other two <br> Mid Craig is situated about three hundred yards due west from <br> Craigs quarry and under this craig the rocks of the quarry dip <br> The lowest portion of it visible consists of a coarse light-red sand- <br> stone which in some places is fully five feet in thickness The <br> depth of this sandstone and the nature of the rocks which underlie <br> it cannot be ascertained owing to the debris which occurs at the base <br> of the Craigs The sandstone is succeeded by a bed of conglomerate <br> about five feet in thickness and in this conglomerate layers of sand- <br> stone are met with rarely exceeding six inches in depth which thin <br> out very rapidly and again occur at different positions in this bed <br> A stratum of sandstone about a foot in thickness succeeds this con- <br> glomerate and appears to increase in thickness in the direction of its <br> dip which is similar to that of the sandstone at Craigs quarry Al- <br> ternate beds of sandstone and conglomerate more or less similar to <br> the foregoing occur for a considerable height until the sandstone <br> disappears and uniform beds of conglomerate alone are met with <br> The thickness of these conglomerate beds varies considerably and <br> even some of the individual beds differ greatly in thickness at dif- <br> ferent places <br> The fragments which compose the conglomerate consist principally <br> of whin both slaty and compact beside which some portions of sye- <br> nite and granite are also to be met with These fragments are all <br> angular and devoid of the slightest trace of friction or abrasion of any <br> kind In size they vary from a small pea to about six inches in dia- <br> meter and some occur much larger but on an average about a cubic <br> inch is the size of the greater proportion of the fragments They are <br> cemented together by a matrix of fine sandstone which is somewhat <br> similar to that occurring in the Craigs quarry 36934263 113689 51125 Page 394 Text v 6 http //www biodiversitylibrary org/page/36934263 1850 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 6 1850 Geology Periodicals Smithsonian Libraries bhl page 36934263 dc identifier http //biodiversitylibrary org/page/36934263 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-23 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/13365798124 2015-08-26 10 52 52 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1850 Photos uploaded from Flickr by Fæ using a script | ||||
.jpg){kind=link}
