【摘要】：麻栗坡祖母綠產(chǎn)于老君山變質(zhì)核雜巖內(nèi)。作者對產(chǎn)于偉晶巖脈中祖母綠的流體包裹體進行了巖相學、顯微測溫和激光拉曼探針研究。研究表明,與成礦有關的流體為中-高溫、低鹽度的NaCl-H_2O-CO_2-CH_4±N_2體系。兩相H_2O-NaCl型包裹體與H_2O-NaCl-CO_2型包裹體密切共生,兩者均一溫度范圍較一致且后者鹽度相對較低。麻栗坡祖母綠包裹體特征表明,流體不混溶作用是麻栗坡祖母綠礦物形成的主要機制。麻栗坡祖母綠礦床的形成與侵入巖有關。
[Abstract]:Ma Li Po emerald occurs in the Laojunshan metamorphic core complex. The authors have studied the fluid inclusions produced in emeralds in Weizinite veins by means of petrography, microthermometry and laser Raman probe. The results show that the ore-forming fluids are NaCl-H_2O-CO_2-CH_4 鹵Ns _ 2 system with medium-high temperature and low salinity. The two-phase H_2O-NaCl inclusions are closely symbiotic with the H_2O-NaCl-CO_2 inclusions, both of which are in the same temperature range and the salinity of the latter is relatively low. The characteristics of emerald inclusions in Malipo indicate that fluid immiscibility is the main mechanism for the formation of emerald minerals. The formation of Maalipo emerald deposit is related to intrusive rocks.
【作者單位】： 南京大學地球科學與工程學院內(nèi)生金屬礦床成礦機制研究國家重點實驗室;國家金銀制品質(zhì)量監(jiān)督檢驗中心(南京);南京地質(zhì)礦產(chǎn)研究所;
【分類號】：P619.28
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本文編號：2180152