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| Keywords: The Quarterly journal of the Geological Society of London (12736980334).jpg 346 <br> T BELT ON THE STEPPES OE SOUTHERN RUSSIA <br> surface modification of the fine diluvial clay produced by the pene- <br> tration of roots carrying down organic matter <br> About eleven miles north-east from Taganrog at the village of <br> Siniafka the following section fig 3 is exposed near the railway <br> from Taganrog to Ilostof <br> Fig 3 � Section near Siniafka 11 miles N E of Taganrog <br> I31ack soil <br> Diluvium <br> 10 <br> Fluviatile beds <br> Older SteppeLime- <br> stone or Con- C 1° <br> gerian beds ' <br> Farmatic or Pas- I jg <br> sage-beds J <br> Covered with talus <br> Alluvium <br> of Don <br> The lowest strata seen at this place are thinly laminated beds of <br> dark sandy silt containing impressions of Tapes gregaria and a few <br> other shells belonging to the Sarmatic or Passage-beds <br> Above these lie about 15 feet of limestone composed in a great <br> measure of the shells of a species of Dreissena Some of the lowest <br> beds were entirely composed of these shells held together by a little <br> calcareous cement The upper beds are sometimes concretionary <br> and resemble in appearance some of the magnesian limestones of the <br> north of England These limestones are the Older Steppe Lime- <br> stone of Murchison and the Congerian or Ingersdorf strata of the <br> Austro -Hungarian geologists <br> Above the limestone lies about 10 feet of yellow sand which <br> becomes a little loamy upwards At the base I found fragments of <br> limestone and pebbles of quartz and quartzose sandstone I saw no <br> shells ; but fragments of bones and of tusks of the Mammoth were <br> not uncommon I picked several pieces out of the undisturbed <br> sand ; and the workmen employed in getting ballast for the railway <br> had thrown on one side many others <br> In ascending the estuary of the Don a similar succession of beds <br> is often exposed though one or more members of it are frequently <br> absent through denudation ; but everywhere the diluvium caps the <br> series resting sometimes on the Congerian strata and sometimes on <br> the Sarmatic beds I sketched the following section fig 4 near <br> Nova Tcherkask the chief town of the Don Cossacks <br> The cliff near Nova Tcherkask is mostly formed of the Sarmatic <br> and Congerian strata and there is a capping of only about 18 feet <br> of black earth diluvium and sand; but the diluvium thickens 35819035 110705 51125 Page 846 Text 33 http //www biodiversitylibrary org/page/35819035 1877 Geological Society of London NameFound Diluvium NameFound Dreissena NameConfirmed Dreissena EOLID 51329 NameBankID 2693546 NameFound Tapes gregaria NameConfirmed Tapes gregaria Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 33 1877 Geology Periodicals Smithsonian Libraries bhl page 35819035 dc identifier http //biodiversitylibrary org/page/35819035 smithsonian libraries Information field Flickr posted date ISOdate 2014-02-24 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12736980334 2015-08-26 19 55 41 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1877 Photos uploaded from Flickr by Fæ using a script | ||||
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