蒙自白牛廠銀多金屬礦床的變異函數(shù)分析
發(fā)布時(shí)間:2018-02-23 18:17
本文關(guān)鍵詞: 變異函數(shù) 白羊—穿心洞 對(duì)門山—阿尾 勘查網(wǎng)度 出處:《高校地質(zhì)學(xué)報(bào)》2017年02期 論文類型:期刊論文
【摘要】:變異函數(shù)是地質(zhì)統(tǒng)計(jì)學(xué)的核心和基本工具。它既能描述區(qū)域化變量的空間結(jié)構(gòu)性變化,又能描述其隨機(jī)性變化,變異函數(shù)分析是許多其它地質(zhì)統(tǒng)計(jì)學(xué)計(jì)算的基礎(chǔ)。文章基于地質(zhì)統(tǒng)計(jì)學(xué)理論,以變異函數(shù)為主要工具,分別構(gòu)建白羊—穿心洞礦段和對(duì)門山—阿尾礦段Pb、Zn元素品位變異函數(shù)模型。其中,二種主成礦元素的連續(xù)性在走向上最好,傾向次之,厚度方向最差。根據(jù)變異函數(shù)的變程,確定了不同礦段的最佳勘查網(wǎng)度,建議白羊—穿心洞礦段勘查網(wǎng)度為50 m×30 m,對(duì)門山—阿尾礦段因變化性較小,勘查網(wǎng)度可采用80 m×75 m。
[Abstract]:Variation function is the core and basic tool of geostatistics. It can describe both the spatial structural changes of regionalized variables and the random changes of regional variables. Variable function analysis is the basis of many other geostatistical calculations. The variation function models of Pb ~ (2 +) Zn element grade in the Baiyang-Chuanxindong ore segment and the Duanshan-A tailings section are constructed respectively. The continuity of the two main ore-forming elements is the best in the direction of direction, the second is the tendency, and the direction of thickness is the worst. The optimum exploration net degree of different ore sections is determined. It is suggested that the exploration mesh of the Baiyang-Chuanxindong ore section is 50 m 脳 30 m, and that of the Mengshan-A tailings section is less variable, so the exploration mesh can be adopted at 80 m 脳 75 m.
【作者單位】: 中南大學(xué)地球科學(xué)與信息物理學(xué)院;昆明理工大學(xué)國(guó)土資源工程學(xué)院;
【基金】:國(guó)家自然科學(xué)基金(41272111)資助
【分類號(hào)】:P618.2
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