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| Keywords: The Quarterly journal of the Geological Society of London (12685070334).jpg 420 <br> PROCEEDINGS OF THE GEOLOGICAL SOCIETY JuHG 16 <br> in these beds The roots of the trees in the bed e are often fixed in <br> the red clay below in which they appear to have grown The upper <br> beds exhibit more of a lacustrine or fluviatile character and near the <br> high grounds become more arenaceous and gravelly than in the central <br> parts of the valley They thus indicate the margin of the ancient lake <br> in which these strata were probably deposited The whole formation <br> reminded me of the freshwater and lignite beds on the north-east <br> coast of Norfolk formerly described by Sir Charles Lyell and may <br> probably be regarded as of nearly the same age It is evidently more <br> recent than the red Boulder Clay or Till but also clearly older than <br> the great peat-bed now forming the surface of the district The <br> upper beds were probably deposited in a shallow lake which may <br> have been drained by the river cutting down the bank of sand and <br> gravel by which the water was retained in consequence of its increased <br> action when the land was raised <br> The section fig 6 seen in the bank of the small river near Ma- <br> Fig 6 � Section near the mouth of the Machrihanish River <br> inches <br> a Soil and blown sand 10 to 12 <br> h Round water-worn gravel 18 <br> c Peaty soil with remains of plants 10 <br> d Brown arenaceous clay <br> e Sandy clays with layers of gravel <br> / Beds of sand and gravel <br> inches <br> 30 <br> 36 to 48 <br> chrihanish exhibits the relation of these older and lacustrine beds to <br> the blown sand and more recent deposits on the coast The whole <br> shore of the bay is occupied by hills of blown sand covered by scanty <br> herbage In this place these blown sands are seen resting uncon- <br> formably against the ends of the more ancient beds and what is <br> curious enough the newer beds are inclined at a considerable angle <br> whilst the older ones are nearly horizontal <br> That the shores of the Firth of Clyde have recently been elevated <br> about 30 feet above the former level of the sea is now so well known 35461496 109911 51125 Page 420 Text v 8 http //www biodiversitylibrary org/page/35461496 1852 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 8 1852 Geology Periodicals Smithsonian Libraries bhl page 35461496 dc identifier http //biodiversitylibrary org/page/35461496 smithsonian libraries Information field Flickr posted date ISOdate 2014-02-21 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12685070334 2015-08-26 20 54 39 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1852 Photos uploaded from Flickr by Fæ using a script | ||||
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