MAKE A MEME
View Large Image
| View Original: | The_Quarterly_journal_of_the_Geological_Society_of_London_(12961211695).jpg (1185x2056) | |||
| Download: | Original | Medium | Small | Thumb |
| Courtesy of: | commons.wikimedia.org | More Like This | ||
| Keywords: The Quarterly journal of the Geological Society of London (12961211695).jpg 340 <br> PEOCEEDINGS OF THE GEOLOGICAL SOCIETY JuDO 9 <br> formation obtained from Dr Plassard who was at Caratal while <br> this stuff was being worked <br> Fig 3 /Section of Alluvial Digging near Nueva Providencia <br> 24-ft - <br> The following is the succession of the beds <br> 1 Soil <br> 2 Red clay showing no signs of stratification <br> 3 Soft clayey moco de hierro <br> 4 Hard moco de hierro brown iron ore with pieces of quartz <br> in it and a httle clay <br> 5 Blocks of vein-quartz often auriferous <br> 6 Greda or pay-dirt a yellow ferruginons clay containing <br> nuggets and small grains of gold <br> 7 Cascajo decomposed schist forming the bed-rock <br> About half a mile from the town on the road to Tupuquen are <br> the Planada diggings said to have been worked with much profit <br> in 1857 The section of one of the Planada pits is as follows <br> 1 Soil <br> 2 Clayey gravel <br> 3 Blocks of quartz <br> 4 Greda or pay-dirt <br> 5 Cascajo the bed-rock <br> In a neighbouring pit I saw about 6 feet of clay and then 6 feet <br> of gravel the bottom being filled with rubbish The pebbles found <br> in the gravel are mainly composed of the greenish grey felstone <br> known as piedra negra ; subangular and rounded pieces of ferru- <br> ginons hornstone are also common Higher up the valleys the placer <br> diggings are shallower <br> 3 Tierra de Flor and Moco de Hierro In many places in the <br> Caratal district just below the soil at a depth of 18 inches to 3 feet 36103201 111288 51125 Page 340 Text v 25 http //www biodiversitylibrary org/page/36103201 1869 Geological Society of London NameFound Providencia NameConfirmed Providencia EOLID 97438 NameBankID 2557960 Biodiversity Heritage Library The Quarterly journal of the Geological Society of London v 25 1869 Geology Periodicals Smithsonian Libraries bhl page 36103201 dc identifier http //biodiversitylibrary org/page/36103201 smithsonian libraries Information field Flickr posted date ISOdate 2014-03-06 Check categories 2015 August 26 CC-BY-2 0 BioDivLibrary https //flickr com/photos/61021753 N02/12961211695 2015-08-26 15 55 03 cc-by-2 0 PD-old-70-1923 The Quarterly journal of the Geological Society of London 1869 Photos uploaded from Flickr by FĂŚ using a script | ||||
.jpg){kind=link}
