Salt Lake Herald-Republican | 1919-03-02 | Page 39 | Alta Tunnel Just Starting Prospecting

I ALTA TUNNEL JUST STARTING PROSPECTING Up to Pa Past t Year Necessary Dead Work Now No in Live Lime People connected with wih the Alta Alia AHa Tunnel Tunnel Tun Tun- nel net Transportation company are arc feeling feeling feel feel- tel In ing more mort encouraged ed these days das over j the future of ot the Big BIg Cottonwood proposition prop prop- than ever before One man put hl his hia argument of ot the 5 situation In these words Up to well wel In Into to la last t year the Alta AHa Tunnel management could not be 4 eald caid ald to ha have hae e started Its Ita actual prospecting prospecting pros pros- work ork The Tho long Jong drain tunnel to have hae cut a pay ore oro shoot would have remarkable it usually takes a lot lotof lotof of ot dead prospecting in vein the system SS tern tem ter after ater the fissures have first frt been cut The way way- I look at It Is this Tho The Alta All Tunnel is Just starting to prospect prospect pros pros- and has not riot done dono more than 50 feet of ot this kind of or work ork And again its Hf work In search of ore shoots may in fact be dated from the hour when the raise recently reached the lime contact For hundreds of or feet and for tor man many months the work has all been Inthe in inthe the dead pad shale where ore was not expected But now that th the live lve lime has haR been discovered in these deep workings the the ther r real al prospecting work is I no now ni a nunu A it monin in mo limestone Is worth a a. year ear in the shale That no commercial ore shoot was VIas found where the raise reached the contact contact contact con con- tact i Is no discouragement to mining men the they would have been surprised surprise had thc they that 0 good luck It H usually takes considerable drifting along the veins and contacts to find commercial ore shoots shoot Now ow that the Alta AHa Tunnel has the thelme lime In the raise an and the same contact contac is due in the west drift its its' is chances o of discovery of ot ore are aro three to one ono compared com corn pared with its is recent nt necessary ry bu but discouraging ln prospecting In the shale There Thero Is ih a a. series of fissures in which tho the work ork now can be systematically taken up The he com company pan after a long long- grind of oC man many years should make some Interesting ore oro discoveries in the next thirty to ninety days GeD General ral Managers Manager's faDa nj r Statement Stockholders of the Alta AHa Tunnel ar arIn are In Iii receipt if f a a. enlightening gc geological statement from General Manager F. F F V y Bodfish from which the following I Is talc taken en For the last last four months we have hav been prospecting the tho hanging wall wal o of ono one of or the series of fissures cut b by th the tunnel in the shale We have hac driven a raise ISO feet feel above abo the tunnel following rich rih stringers of or ore through the shale into the tho soluble lime bed bee aboyo Not ot finding ing ore oro in commercial quantities nt at this particular intersection tion ton may be in a sense disappointing but hut does docs oes not alter aHer our opinion that th the most favorable place for ore oro deposItion is 13 In the tile veins at the contacts between the lime and shale We e have haye established liaised the fact tact that the soluble lime mineralized thi this above the tho shale ls s at Intersection and that the veIns eln cut In tho the shale aro the are the thc channels channel channel through which the mineralizing solutions tons passed to form the ore bodies sue such as were extracted from adjacent prop prop- In former years ears A drift on the same vein has been driven we west ve-st t 10 feet on the tunnel level showing about the same samo mineral mineral- as found in the raise This Thi drift will b be extended to the tile lower wil contact which Is believed to be bc only a short distance ahead The physical difficulties o of doing an any extensive prospecting from the top lop of a ISO-foot ISO raise especially as it I is wet vet is so great that it i is planned to cros croscut ClOS crose- crose cut the whole series of fissures encountered encountered encountered en en- countered In the shale by br driving on th the tunnel level lec a drift on tho contact I Ia In Ina ina a southeasterly direction from Tons th the point where here the shale was first on on- on countered In the tunnel This contact contac drift will wl be driven entirely in the thc soluble soluble ble lime keeping the shale shalo un under er an and immediately to the west of ot it it- it W We Weare c are able to do this b by reason of or th the fact that tho the lime Hm bedding dips through tho the horizontal plane of the tunnel before before before be be- fore the tunnel reaches the tho shale or orthe orthe orthe the fissures mentioned From rom the tunnel the course of which Is south the shale lime contact strikes to the southeast an and dips to the thc northeast northeast north- north east cast at an agle of 20 0 degrees A drift starting fro from rom the tunnel in the lime and running running southeast at the proper I an angle le will cut all al southwest northeast fissures in the soluble lime at t or close to the intersections with the underlying underlying un un- un shale find nd prospecting for I commercial ore in these veins can bo be j I carried on on without doing doil an any more I work In the tho chale thale where pr progress bress Is slow and the tho cost high We e are arc st strongly h of the le op opinion that I L tills 1113 WOK orK win Wll nUll u u L L Ci time result resul in the discovery ery of oJ Important Important important tant 1 bodies o ics of ore are Meanwhile wo we o shall hal continue our drift on the ore scam through h the shale to the west until we 0 reach the underlying contact where b by drifting we will l be bc prospecting the thc entire entire en en- tire tre fissure serIes at another favorable fa I 11 0 r izon I