【摘要】：花脖灣石英巖礦賦存于長城系磨石溝組,礦石質(zhì)地純凈且變化穩(wěn)定,這與沉積環(huán)境關(guān)系密切。在詳細研究石英巖礦物組成、嵌布粒度特征和分析化學(xué)成分與石英粒徑關(guān)系的基礎(chǔ)上,探討了磨石溝組沉積環(huán)境對石英巖特征的影響關(guān)系,并提出了相關(guān)的開發(fā)利用建議。結(jié)果表明:花脖灣石英巖的平均w(SiO_2)為97.09%,石英粒度集中分布在0.098mm~0.26mm內(nèi);在區(qū)域北西(前濱)-南東(臨濱)方向上,隨著石英粒徑減小,雜質(zhì)含量逐漸增多,石英巖w(SiO_2)由99.10%降低到93.64%,與平均嵌布粒度的相關(guān)系數(shù)達到87.7%;磨石溝組沉積環(huán)境為高能碎屑海岸的濱淺海沉積,沉積分選作用直接控制了碎屑沉積物的礦物組成和粒度分布,化學(xué)元素配分受白云母含量變化影響;花脖灣石英巖礦資源前景良好,應(yīng)根據(jù)沉積環(huán)境變化特征對其進行梯度開發(fā)利用。
[Abstract]:Huaowaowan quartzite deposit is located in the Moshigou formation of the Great Wall system, and its texture is pure and stable, which is closely related to the sedimentary environment. On the basis of the detailed study of the mineral composition of quartzite, the distribution of granularity and the relationship between the chemical composition and the size of quartz, the influence of sedimentary environment of Moshigou formation on the quartzite characteristics is discussed, and the relevant suggestions for development and utilization are put forward. The results show that the average w (SiO_2) of quartz rock in Huaowawan is 97.09, the grain size of quartz is concentrated in 0.098mm~0.26mm, and the impurity content increases with the decrease of quartz particle size in the north-west (foreshore) -south (coastal) direction of the region. The SiO_2 decreased from 99.10% to 93.64%, and the correlation coefficient with the average intercalated granularity reached 87.7.The sedimentary environment of the Moshigou formation is the shoreline sediment of the high-energy clastic coast, and the sedimentary separation directly controls the mineral composition and particle size distribution of the clastic sediments. The distribution of chemical elements is affected by the change of Muscovite content, and the quartzite resources in Huaowaowan have a good prospect, which should be exploited and utilized gradient according to the variation characteristics of sedimentary environment.
【作者單位】： 西南科技大學(xué)礦物材料及應(yīng)用研究所;西南科技大學(xué)分析測試中心;中國建筑材料工業(yè)地質(zhì)勘查中心青海總隊;
【基金】：四川省創(chuàng)新團隊項目(No.14TD0012)
【分類號】：P619.233

【相似文獻】

相關(guān)期刊論文 前10條

1 祁祖安;;湟源縣石英巖資源特征及開發(fā)建議[J];中國非金屬礦工業(yè)導(dǎo)刊;2007年05期

2 黃德晶;尹瓊;;珠寶市場上新出現(xiàn)的石英類與石英巖類玉石[J];湖南科技學(xué)院學(xué)報;2011年04期

3 代建強;;電感耦合等離子體原子發(fā)射光譜法測定石英巖中雜質(zhì)元素[J];安陽工學(xué)院學(xué)報;2012年06期

4 宋福佽;;奻娗掽粒攠，

本文編號：2215287