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| Keywords: The Quarterly journal of the Geological Society of London (12895096653).jpg 1864 <br> SEELEY HUNSTANTON RED ROCK <br> 329 <br> sponge-rock though only in patches There are many fissures in <br> this stratum and in the chalk which pass down to the top of the <br> Red Rock; they are filled with black and red colouring-matter <br> often largely mixed with recldish-brown sand At the base the red <br> matter thickens and generally enlarges into nests <br> Bearing on this subject is the section fig 1 showing a slight slip <br> in the Red Rock and Carstone which has not affected the chalk <br> except by shivering it and by forming fissures which are filled in as <br> shown in the figure The top of the sponge-rock is merely curved ; <br> and where the Red Rock is in the middle of the cliff is the section <br> given in fig 2 Under 8 inches of top earth are about 9 feet of re- <br> constructed chalk quite white and seemingly without any foreign <br> substance Below this is about 20 feet of chalk then the sponge- <br> band and finally the Red Rock From the top of this latter up to <br> the reconstructed chalk extends a straight but obliquely inclined <br> fissure which expands at the top trumpet-like to a width of at least <br> 3 feet and similarly expands at the base to a length of 4 feet form- <br> ing a triangular mass which displaces the sponge-band entirely and <br> some of the grey sandy chalk This fissure and its expansions are <br> filled with red matter which is darkest in the line of the fissure and <br> at its base <br> Fig 1 Section showing a fault in the Red Rock and Carstone the <br> Sponge-bed being shattered <br> w A Fine drab-coloured sand <br> B Yellow sand with black par- <br> ticles <br> C D Ochreous sand with black <br> particles <br> E Deep-red matter <br> W Grey sandy chalk <br> X Sponge-bed <br> Y 1 Y 2 Y 3 Red Rock <br> Z Carstone <br> lipii <br> ii <br> ii <br> Fig 2 <br> Section showing a fissure in the CJialJc of Hunstanton con- <br> taining red matter <br> a Earth <br> b Reconstructed chalk 4 ft thick <br> c White chalk <br> d Band of red chalk <br> e Grey sandy chalk <br> / Sponge-bed <br> g Red Rock 36089592 111261 51125 Page 329 Text v 20 http //www biodiversitylibrary org/page/36089592 1864 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 20 1864 Geology Periodicals Smithsonian Libraries bhl page 36089592 dc identifier http //biodiversitylibrary org/page/36089592 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-03 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12895096653 2015-08-26 16 50 27 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1864 Photos uploaded from Flickr by FĂŚ using a script | ||||
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