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| Keywords: The Quarterly journal of the Geological Society of London (12646259584).jpg 1863 <br> DAY LIAS OF DORSETSHIRE <br> 283 <br> able feature in the cliff though very uninteresting to the collector <br> They are succeeded by 160 feet of grey micaceous marl d Two or <br> three thin bands of mudstone and of occasional nodules occur in the <br> lower part of this mass ; and at rather more than 100 feet over the <br> Three Tiers a thicker band e containing shells and calcareous <br> concretions stands out from the face of the cliff Underneath this <br> thick band is a curious and persistent layer of small nodules / con- <br> taining chiefly fragments of Ammonites The mass of grey marls <br> terminates with a layer made up of shells and fragments of Penta- <br> crinus ; and this is immediately overlain by a bed of large sandstones <br> from 4 to 6 feet in thickness which is again succeeded by large <br> nodular masses of indurated sand Over the nodular layer occur <br> the Middle Lias sands a grey and marly in the lower part but gra- <br> dually becoming brown and more arenaceous in their upper portion <br> Nodules are plentifully scattered through these ferruginous sandy <br> shales and sands which are here about 60 feet in thickness and are <br> succeeded by Cretaceous beds <br> Fig 3 ” Vertical Section of the Middle Lias at the Golden Cap <br> Greensands c <br> feet <br> a Grey and Brown sands with nodules 70 <br> b Starfish-bed <br> c Shell-bed <br> d Grey micaceous marl with layers of mudstones 160 <br> e Mudstone with nodular concretions and Shells 4 <br> / Small nodules containing Ammonites <br> g The Three Tiers 23 <br> h Grey marls with the Green Ammonite-nodules 100 <br> i The Belemnite-stone <br> We have therefore in the Golden Cap about 290 feet of grey <br> marls capped by about 60 feet of sands with nodules all belonging <br> to the Middle Lias <br> Passing eastwards over a small upthrow mentioned by De la <br> Beche there occurs at the Coastguard-station at Seatown a power- 35328248 109632 51125 Page 283 Text v 19 http //www biodiversitylibrary org/page/35328248 1863 Geological Society of London Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 19 1863 Geology Periodicals Smithsonian Libraries bhl page 35328248 dc identifier http //biodiversitylibrary org/page/35328248 smithsonian libraries Information field Flickr posted date ISOdate 2014-02-20 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12646259584 2015-08-27 11 51 10 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1863 Photos uploaded from Flickr by Fæ using a script | ||||
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