MAKE A MEME
View Large Image
| View Original: | The_Quarterly_journal_of_the_Geological_Society_of_London_(12826429323).jpg (1211x2057) | |||
| Download: | Original | Medium | Small | Thumb |
| Courtesy of: | commons.wikimedia.org | More Like This | ||
| Keywords: The Quarterly journal of the Geological Society of London (12826429323).jpg JAMIESON PLEISTOCENE ABERDEENSHIRE <br> 515 <br> 1858 <br> up to a weight of about a ton and a half and of a mineral character <br> similar to rocks which occur further up the valley <br> ˘ Fig 3 ” Section at Collieston Coast-guard Station <br> a Clay b Sandy strata c Gneiss <br> About a couple of miles to the north of the River Ythan the <br> sandy beach gives way to a rocky coast of gneiss and mica-schist <br> which continues without interruption to the Bay of Cruden a dis- <br> tance of more than five miles These cliffs very commonly present <br> a face from 60 to 100 feet high towards the sea where the rock <br> itself attains this elevation it is generally destitute of superficial <br> covering or has sometimes a thin layer of coarse clay ; where <br> however the rock sits low the additional height is made up of <br> grassy banks which appear to be composed of red clay and sand <br> stratified frequently in an undulating manner Owing to the grassy <br> surface the interior of these banks is seldom disclosed by any good <br> section At the Collieston Coast-guard Station fig 3 however a <br> slip has laid the mass open from top to bottom showing ” <br> Feet <br> 1 Red clay devoid of stones but without any strati- <br> fication-lines apparent 17 <br> 2 Strata of the finest sand varying in colour from <br> pale brownish-grey to reddish 56 <br> 3 Gneiss-rock covered by a foot or so of its own <br> debris 30 <br> The sandy strata lie horizontally with some gentle undulations <br> they are quite devoid of all stones pebbles or coarse gravel In <br> some small seams of coarser sand near the bottom of the mass I <br> found traces of broken shells but so comminuted as to render any <br> knowledge of the species unattainable The junction of the clay <br> and sand forms a line nearly horizontal ; and the sea-waves wash the <br> foot of the rock <br> At a cliff a mile or so to the north of Collieston some slips show <br> that the gneiss is covered by 30 or 40 feet thick of strata composed <br> almost entirely of fine sand varying in hue from red to grey Some 36214505 111684 51125 Page 515 Text v 14 http //www biodiversitylibrary org/page/36214505 1858 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 14 1858 Geology Periodicals Smithsonian Libraries bhl page 36214505 dc identifier http //biodiversitylibrary org/page/36214505 smithsonian libraries Information field Flickr posted date ISOdate 2014-02-28 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12826429323 2015-08-26 17 53 10 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1858 Photos uploaded from Flickr by Fæ using a script | ||||
.jpg){kind=link}
