Field Notebook: Mexico 1906
Page 95
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Transcription
The first paper was by Bain, he thought the deposition of ore was largely due to the Palaeography. The concentration was due to oil or carbonaceous rocks. The constantly escaping hydrocarbons and sulphides of the oil rocks and Hock shales would concentrate the widely dissimilary ores in the sedimentaries. This I course my refers to the soluble ores as iron, manganese, lead zinc and copper. That the Hock sholes moved their carbonaceous matter largely to plants was shown by White who had found spore of algae in the Hock shales. Lawson said his examination of the Black Sea during the Russian Ceyper showed the dredged mud to be filled with hydro-carbons and sulphides. He thought that at times the oceans might have stagnant areas producing sulphides or precipitating the ores in solution. Heck objected to this strenuously and said mud was cold be the concentrates. In the evening one attended the reception given to the Ceyper by the Assistant Secretary Rep. of Foraneo Aldosaro. This official quarters in the Minera had been heartformed in living chamber