| Show CRIPPLE CREEK IN BIG MINING REVIVAL ENGINEER D P SETS THE PACE with ore as low as four ounces in silver 4 per cent in in lead and 4 per cent in zinc made commercially profitable by the new oil selective flotation groces of treatment more millions mil lions will be taken from the mines of colorado in those three metals alone within the next few years than ever was credited to the the state in the big years of her mining production this prediction was made by D P a mining engineer and geologist of international note known to mining engineers and other scientific men as an engineer who combines unusual conservatism with a high degree of ability says the denver mining and financial record of the is a graduate of freiberg germany and a postgraduate post graduate of berlin university i having spent seven years in anten intensive sive study in that country during which he took practical courses in european mining and geology for the next ten devoted his time to visiting the mining camps of the entire world for practical work and geological research later he fie came to color colorado ado and was active at cripple creek cree k leadville aspen and many other camps of this state and in utah at home in colorado his geological maps of odthe the aspen district have been adopted by bythe the U S geological survey un under der hiss his name an honor thit that has been conferred red on no other american engineer he had a large share in the development of aspen aind and recently returns to that camp from salt lake city to devote the remainder of his life he says to a rejuvenation of the aspeti aspen district and adjacent territory bry his theory being that the ore bearing zone extends miles there it is hard to make people understand he said that min mining ing bisno longer a haphazard operation and a gamble under competent engineers it is now almost an exact science science for example the aspen district is no longer a mystery for we know the formation and almost to a nicety where to look for theore the ore bodies I 1 do not hesitate to state that there I 1 will be more millions taken out aut of such camps as As aspen p an than have ever been credited to them in the past only one ore zone tapped in aspen 01 the fact is that only one ore zone the easiest has been touched in the aspen district and ind there are three or four other krezones ore zones H that will prove richer than the first A and of greater proportions the geology of the aspen district is a duplicate of that of the leadville district only on a reverse plan because between the two comes the uplift forming the hogback of the wasatch range formations in the leadville district are more flat than in the aspen district and pitch from the west to the east turning upwards at the break of the mosquito uplift the formations of the aspen district on the contrary pitch from the east cast to the west at a much steeper incline and are turned upwards at the break of the elk mountain uplift which cot cor responds exactly to the uplift of the mosquito range in the leadville district the two districts are merely opposite sides of a gigantic saddle called the main range it is at the knuckles of these breaks or faults that the large ore bodies have been found in both districts the difference being that in leadville the ores have been followed downwards through four faults and four different strata making four distinct ore zones whereas in aspen only one abne of these ore zones has been worked cause of metal mining revival the reason for the revival of mining is due to the de mand for zinc and lead the demand for lead has increased to such an enormous extent that it is no longer possible to find lead for our paint companies which have been driven to the use of zinc thus making the demand for zinc practically as great as the demand for lead and placing it almost on a parity in commercial value world conditions are such that the consumption of lead and zinc will no doubt continue to increase and the price is likely to reach a parity with copper in the next few years that may seem to be optimistic to some but a careful study of our industrial conditions and the march of electric industries will bear me out at the psychological moment for the good of colorado came the perfecting of the new oil selective flotation processes for the treatment of lead zinc ores in fact ores bres carry ing all the metals that process had bad its inception several years ago in australia and the great work of bringing it to its present state of perfection is not credited to any one man or one company but was the result of combined re search work by many men and man many y companies I 1 in I 1 this country and abroad new methods of ore treatment what is essential is that the process is a complete and ae the proven success we can float an any y minera mineral I 1 in any ot of ane the complex ores under perfect control and thus save all tn values that is different from the days when the miner was penalized zed for all zinc over 5 per cent contained in his ores ore the process is extremely economical and ores as 10 as four foul ounces in silver and 2 per cent in zinc can be treated treal at a profit providing mining conditions are normal anark and wo effidio efficient nt in general it is safe to say that ores running 4 0 bunc silver 4 per cent lead and 4 per cent zinc are profitable orea or and can be handled at a profit by a small mill val that is the feature that makes the new process SO small bable to colorado it is available to the man with sm mill means and can be utilized in the most out of the way na ing camp it does not require great capital and an plant is associated with engineer R P shar peio for r merly of pittsburgh pa and frank J cannon of denver iw former united states senator from utah J in the deveaw de with ment of extensive properties at aspen in co injunction nj unction abing I 1 pittsburgh capitalists the company has been oper the old mill of the smuggler mine this year to make of cen and about february 1 will open a pew new will anlo ion t ton 0 n capacity per day operating on the oil selective t i ve W 4 T process |
