貴州關(guān)嶺丙壩銅礦床地氣微粒特征

發(fā)布時間：2018-07-15 17:01

【摘要】：為了查明地氣微粒特征與隱伏礦體的關(guān)系,對貴州關(guān)嶺丙壩銅礦床進行地氣微粒采樣,并用透射電子顯微鏡進行分析。研究結(jié)果表明:地氣微粒存在形式有微粒聚合體和單個微粒,以微粒聚合體為主。單個微粒形態(tài)各異,有球狀、板狀、立方狀、橢球狀、條狀、不規(guī)則狀等,粒度一般在幾納米到300nm之間;微粒聚合體多呈鏈狀、渾圓狀、不規(guī)則狀。微粒的元素組成與地下隱伏礦體具有較好的相關(guān)性,且發(fā)現(xiàn)較多微粒中含有高濃度的Fe、Mn、Pb、Zn等元素,這無疑對該礦區(qū)今后的地質(zhì)找礦具有指導(dǎo)意義。此外,通過對比不同礦床的地氣微粒特征,發(fā)現(xiàn)礦床類型不同,微粒的種類、成分、形態(tài)等特征有差異,但相同類型的礦床卻具有較大相似性。礦床地氣微粒特征與地下隱伏礦床具有較好相關(guān)性,在相似地質(zhì)環(huán)境下形成的礦床微粒元素組成、大小大體上具有相似性,但其間的微粒組合、形態(tài)等仍會存在一定的差異性。因此,可以通過對隱伏金屬礦床地氣微粒特征的研究,建立不同礦床類型地氣微粒特征模型。
[Abstract]:In order to find out the relationship between the characteristics of the earth gas particles and the concealed orebodies, the samples of the earth gas particles from the Guanling Proba copper deposit, Guizhou Province, were collected and analyzed by transmission electron microscope (TEM). The results show that there are two kinds of microparticles in the earth-air particles, which are particle polymer and single particle. Single particles have different shapes, such as globular, platelike, cubic, ellipsoid, stripe, irregular, etc. The particle size is generally between a few nanometers and 300nm, and the particle aggregates are mostly chained, rounded and irregular. There is a good correlation between the element composition of the particle and the underground concealed orebody, and it is found that more particles contain high concentration of Fe _ (mn) mn _ (Pb) Zn and other elements, which is undoubtedly of guiding significance for the geological prospecting in the future. In addition, by comparing the characteristics of earth gas particles in different deposits, it is found that there are differences in the types of deposits, the types of particles, composition, morphology and other characteristics, but the same types of deposits have greater similarity. There is a good correlation between the characteristics of the earth gas particles and the underground concealed deposits. The size and size of the particles formed in the similar geological environment are similar in general, but there are still some differences in the combination and morphology of the particles between them. Therefore, through the study of the characteristics of geogas particles in concealed metal deposits, a model of geogas particle characteristics of different types of deposits can be established.
【作者單位】：中山大學(xué)地球科學(xué)與地質(zhì)工程學(xué)院;廣東省地質(zhì)過程與礦床資源探查重點實驗室;
【基金】：國家高技術(shù)研究發(fā)展計劃“863”項目(2008AA06Z101)~~
【分類號】：P618.41

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