| Golmud,Qinghai Province Sijiaoyang-Niukutou iron polymetallic deposit is a newlydiscovered large scale iron polymetallic deposit in Qinghai Province, the ore body mainlyoccurs in skarn which formed of carbonate rock in Upper Carboniferous Sijiaoyanggougroup. The area is being carried out exploration work, the whole work is higher degree, butfor the skarn which orebody occurrence in is relatively less.This paper is on the basis of professional knowledge, research on the comprehensiveanalysis of the geological exploration of past geological logging data, the identificationresults, real samples test analysis results in the process of project implementation.Therefore the paper writing pay attention to summary and research the actual phenomenon,after the summary analysis was as follows.(1)The ore bodies mainly occur in the upper Carboniferous Sijiaoyanggou groupskarn formed in carbonate rock, and the skarn has obvious zonality in deposits, from amacro can be divided into two skarn zone, while the two skarn zone in terms ofmorphology, size and the ore characteristics were significantly different.(2)There are two skarn zone in deposits, one for the skarn type Pb-Zn mineralizationupper card rock belt, forming the upper Pb-Zn ore; the other is skarn type iron-coppermineralization,formed magnetite orebodies, ore body at the lower part of the ore.(3)The whole area is a skarn deposit, but because the orebody (skarn) has obviousstratification, in view of its existing position, ore characteristics and two skarn rockcharacteristics, believe that there are two types of deposits mining area.A, upper Pb-Zn ore is hydrothermal deposit.B, lower magnet ore body, brass body is contact metasomatic deposit.(4)Sijiaoyang-Niukutou iron polymetallic deposit is a skarn type iron polymetallicdeposit. |
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