發(fā)布時(shí)間：2018-04-16 04:18

  本文選題：流體包裹體 + 成礦作用�。� 參考：《地質(zhì)與勘探》2017年02期

【摘要】：梅子沖鉛鋅鎢多金屬礦床位于廣東省韶關(guān)市一六礦區(qū)。野外調(diào)查和室內(nèi)顯微鏡鑒定表明,梅子沖礦床成礦作用分為兩期五階段,第一期為矽卡巖期,可以分為早期矽卡巖階段(A1)、晚期矽卡巖階段(A2)和鉀長(zhǎng)石白鎢礦階段(A3);第二期為熱液期,可以分為石英硫化物階段(B1)和石英碳酸鹽階段(B2)。礦體的石英和白鎢礦中含有富液相的氣液兩相流體包裹體,地質(zhì)特征結(jié)合包裹體測(cè)溫資料表明,成礦溫度介于207℃~449℃,鹽度為1.16%~12.4%,反映礦床形成于中-高溫環(huán)境。成礦流體特征及成礦溫度的演化表明,A1+A2至A3階段的流體混合作用可能導(dǎo)致了白鎢礦的形成,A3至B1階段的流體混合作用可能促進(jìn)了鉛鋅礦的形成。
[Abstract]:Meizichong lead-zinc-tungsten polymetallic deposit is located in No. 16 Mining area of Shaoguan City, Guangdong Province.Field investigation and laboratory microscopic identification show that the mineralization of the Meizi Chong deposit is divided into two phases and five stages, the first stage is skarn stage,It can be divided into early skarn stage (A1), late skarn stage (A2) and potassium feldspar scheelite stage (A3); the second stage is hydrothermal stage, which can be divided into quartz sulphide stage (B1) and quartz carbonate stage (B2).Quartz and scheelite ore bodies contain liquid-rich gas-liquid two-phase fluid inclusions. The geological characteristics and the temperature data of inclusions show that the ore-forming temperature is between 207 鈩，

本文編號(hào)：1757264