Arizona republican., 1917-05-02
MINES CHANGING ORE
 AS THEY SINK
fRv William p. De WolO

terestins phase of the viVified mining activity everywhere in evidence throughout Yavapai county is the tendency of the ores in mines hitherto recognized as precious metal yielders solely, to at depth change their mn era contents from silver and gold to copper This metamorphose opens vista of copper ore mining possibili- ties in sections other tran the famous 1 Verde district, and serves to verify the opinion of a number of promi- nent mining men that the ores oi | Y9vapa! county have copper base IF their stratas Of primary enrichment. 1 Tn the days when the United Verde mine at Jerome was controled by the late Frederick F. Thomas, former professor of chemistry at Yale Uni versity. and associates it was quite noted as a gold silver producer as it now is a producer of copper. Re
 cent developments in precious-meta' mines at widely divergent points here | disclose tranSmutation possibilities similar to those recorded in the Unit ed Verde mine. A mining feature If equal interest and significance i.; the tendency of the famous Verde
 copper belt to expand under the
 stress of development-more parti-
 cularly to the southeast in the direc- l "
 Leghorn), Arizona Ringhampton, (for-
 merly Stoddard Mines), Blue Bell, De Soto ard Big Reef estates. Each of
 the properties named is a producer
 and is demonstrating that the pay
 copper ore bodies of Yavapai county
 are by no means confined to the Yer
 de district
 Development work the current week
 in the mine of the Arizona Bing-
 hampton Copper company is pGrti- culary interesting in it's application
 to the opening of bodies of commer-
 cial copper ore on the sOuthest con-
 tinuation of the Verde belt. On the
 evening of April 22nd Superintendent
 Thomas H. Tulloch started a cross
 cut to the east of the 400-foot level
 The following morning the day shift
 broke into 2 feet of ore that sampled
 an average of per cent copper per
 ton. Further development has dis
 closed 1G feet of better than F pei
 cent copper ore with the fill width oi
 the deposit as yet undetermined.
 drift has beer started 10 the
 north in t and is breaking better
 than F per cent copper. Whether this deposit is or not a continuation o1
 No. 102 ore body from which, at other
 points, ore is being regularly mined and milled is problematical. Mineral
 ogical evidences bear out however
 the theory of General Manager John
 son and Superintendent Tuloch that
 it is separate ard distinct from any other deposit opened in the mine. The l crosscut west in this deposit show. 3 feet of 5.20 per cent copper ore The breast of each of the three open } ings is filled with chalcopyrite anC gray copper. Taken in connection
 with the fact that pay ore is opened
 elsewhere in the mine from the 100 | foot level to a depth of 500 feet, tn, recent discoveries may DC accepted . as proof positive of the present an, ? fu-ure work of the Arizona Bing l hampton estate
 5 On the 6OG-foot level the driv, 5 south has exposed II feet Of AIS pc . cent copper ore similar Tn characte to Nc. 91 deposit. The latter show f pay ore in tonnage from the 9th leve : to approximately 40 feet above tn
 100-foot level, but is not being draw, ! upon for mill tonnage at this time , Such ore extracted from 1t as has beel . mllled gave q return at the heads O ;. per cent copper. It is the plan o p the management to hold No. 91 or
 body in reserve until such time as tn e companv's mill has been increased t BOG tons capacity, and to supply it a l present milling demand from No. 10 | ore body. The latter is opened on tn a various levels to a depth of 600 feel
 The stope on the 200 foot level il
 No. 101 ore body SHOWS 10 feet of pa
 rock with neither wall in sight e present the stope has a perpendicula |, length ot 25 feet. Superintendent Tul y loch reports the ore to carry fror '. 6 to 8 per cent copper per ton. All o a the ore now going to mill. save tha v broken in the stope in No. 101 deposi u is mined during the ordinary cours
 of each days development worl
 Which means that while the mine being rrosrecteo and opened it |, | supplying the mlll with 100 tons c U ore per day.
 II James s. Murphy of Cripple Creel II Colorado, who superintended the sink ing of the shaft to it's present dept y of 600 feet, and the development wor l. on tfe various levels priCr to the in
 stallation or the company's flotatio min, and who inspected the mine l u late April states that the result of re Il cent development work proves tn r mine and assures it's future He pro t nounces the showing to be one of th most promising ne has viewed durin n his many years experience as a min n superintendent and mine operator e During the month of April the com g pany shipped 500 tons of concen d trates to the Humboldt snelter Thes
 concentrates had an average coppc
 content of 22 per cent and coDpe
 content range from 20 to "A per cen