Yuav ua li cas nrhiav tungsten ore

Cov hom tungsten deposits, yog muab faib raws li kev sib xyaw ntawm cov ntxhia hauv cov ntsiab lus, yog W-(Sn, Bi, Mo), W-Be, W-(Cu, Pb, Zn, Ag), W-Nb-Ta, W -Au-Sb, W-Li, W-Cu-Fe, W-REE, thiab lwm yam. Nws cov hom kev lag luam suav nrog quartz leeg-hom wolframite deposits (Sawpan Pit, Guangdong, Dajishan, Jiangxi, thiab lwm yam), porphyry-type tungsten ores (zoo-vein infiltrated thiab dunite-type) (Lianhuashan, Guangdong, thiab Yangduling, Jiangxi), blast breccia-type tungsten deposits (Dahutang, Jiangxi), sillimanite-type scheelite deposits (Yaogangxian, Hunan; Xiangbenshan, Jiangxi; Xiaoliugou, Gansu), silica xikite-dominated txheej-tswj, multi-causal stacking-hom (Kakijukyuan) , thiab txheej (Kakizhuyuan, Hunan), txheej-tswj multi-causal superposition hom (Daming Roob, Guangxi), thiab alluvial hom.

Cov cim qhia txog kev nrhiav tungsten ore

Dej system hnyav xuab zeb ntsuas thiab av hnyav xuab zeb ntsuas. Qhov no yog vim hais tias wolframite thiab wolframite tsis yooj yim rau oxidised thiab decomposed thaum huab cua thiab yaig, tab sis tau sau ua cov khoom hnyav rau hauv qab ntawm cov pob zeb mos lossis av.

2, Plhaub-mantle sib xyaw-qhov chaw cov leeg coj los ntawm qhov tob los ntawm qhov sib sib zog nqus thiab loj tawg tuaj yeem tsim porphyry-hom thiab breccia-chim tungsten ores; thaum cov hlab ntsha los ntawm lub plhaub-qhov chaw tsim cov leeg-hom lossis yucca-type tungsten ores.

Cov tungsten-bearing quartz leeg nyob rau hauv tungsten mining cheeb tsam feem ntau tsim nyob rau hauv pawg thiab bands, thiab lawv feem ntau muaj cov yam ntxwv ntawm equidistant tso zis. Raws li txoj cai kab rov tav thiab ntsug zoning faib kev cai ntawm tungsten mineralization thiab hydraulic fracture fissure tso zis txoj cai, lub hav zoov ntawm cov hlab ntsha zais yuav raug kwv yees.4. Cov cheeb tsam sab hauv thiab sab nraud ntawm cov pob zeb granite thiab cov pob zeb nyob ib puag ncig ntawm cov pob zeb lub cev sab saum toj npog theem, uas muaj cov khoom ntawm dacite, silica, potassic, sericite, fluorite, thiab sillimanite, thiab lwm yam, yog qhov chaw zoo rau kev tshawb nrhiav tungsten ores. .

4, nyob rau hauv silica-porphyry hom tooj liab, molybdenum, lead-zinc, tsawg lub ntiaj teb, niobium-tantalum mining cheeb tsam thiab zoo sib xws stratiform hom silica tis cheeb tsam, yuav tsum tau them nyiaj mloog mus nrhiav tungsten ore.

5, Vim hais tias nplua-grained scheelite yog ib qho yooj yim kom tsis meej pem nrog quartz, tab sis scheelite fluoresces lub teeb xiav, thaum quartz tsis fluoresce. Yog li, fluorescence irradiation yog qhov ua tau zoo tshaj plaws thiab ceev tshaj plaws kom paub qhov txawv quartz los ntawm scheelite.

6. Ua tib zoo nrhiav tungsten-antimony-kub deposits nyob rau hauv antimony-kub kev tsim kho ntawm ntiav metamorphic pob zeb, xws li Hunan Wuxi kub mine.