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| Keywords: The Quarterly journal of the Geological Society of London (12826331995).jpg s are most excellent He draws a proper <br> distinction between the older close-grained basalt as it generally <br> occurs much decomposed and of a nodular structure and the re- <br> cent rock which is commonly very vesicular and amygdaloidal <br> From the similarity in lithological character as he observes it is <br> however sometimes impossible to separate the one from the other <br> I have seen the newer basalt in close proximity to a crater both <br> vesicular and very dense and the latter undistinguishable from some <br> specimens of undoubtedly older rock Neither from their mineral <br> constituents nor specific gravity is it possible to say from a hand- <br> specimen whether the basalts are new or old The following <br> section fig 4 shows in a synoptical form the manner in which these <br> formations occur <br> Fig 4 ” Diagram showing the relations of the Basalts in Victoria <br> a Porous lavas recent b Younger basalts c Older basalts d Quartz- <br> ose drift Pleistocene e Tertiary fossiliferous strata Miocene <br> / Palaeozoic rocks g Granite <br> The older basalt c in all probability was erupted by submarine <br> volcanos ; and we have no reason to suppose that it did not flow <br> in considerable streams and fill up inequalities in the ancient sea- <br> bed Extensive denudation of which during that period we have <br> abundant proofs would account for the removal of the cappings or <br> See Geological Surveyor's Report p 7 1854 36214200 111684 51125 Page 232 Text v 14 http //www biodiversitylibrary org/page/36214200 1858 Geological Society of London NameFound Victoria NameConfirmed Victoria EOLID 34123 NameBankID 897688 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 14 1858 Geology Periodicals Smithsonian Libraries bhl page 36214200 dc identifier http //biodiversitylibrary org/page/36214200 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 N02/12826331995 2015-08-26 17 52 09 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 | ||||
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