南秦岭竹山县土地岭火山岩型钽铌矿综合找矿方法及找矿模型
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黄景孟, 熊意林, 张笑, 鲁显松, 周豹, 汪国虎
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An integrated ore-prospecting method and model for volcanic Ta-Nb deposits in Tudiling,Zhushan County, south Qinling orogenic belt
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HUANG Jing-Meng, XIONG Yi-Lin, ZHANG Xiao, LU Xian-Song, ZHOU Bao, WANG Guo-Hu
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表1 土地岭钽铌矿区矿体地质特征
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Table 1 Geological characteristics of tantalum-niobium orebody in Tudiling mine area
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| 矿体编号 | 地表长
度/m | 厚度/m | 产状 | 岩性 | 矿体钽铌 | | 含量 | 平均品位 | | NbTaⅠ | 2050 | 28(最厚64.70 m) | 25°∠74° | 含钾长晶屑凝灰质千枚岩 | Nb2O5:0.08%~0.209%,
Ta2O5:0.008%~0.014% | Nb2O5:0.148%,
Ta2O5:0.0116% | | NbTaⅡ | 380 | 26.7(最厚36.89 m) | 20°∠58° | 粗面质晶屑岩屑凝灰岩、
含钾长晶屑凝灰质绢云千枚岩 | Nb2O5:0.08%~0.192%,
Ta2O5:0.008%~0.013% | Nb2O5:0.154%,
Ta2O5:0.011% | | NbⅢ | 1100 | 27.6(最厚29.3 m) | 23°∠40° | 粗面岩 | Nb2O5:0.08%~0.083% | Nb2O5:0.082% | | Nb(Ta)Ⅶ | 3026 | 82.5(最厚99.9 m) | 24°∠41~64° | 凝灰质绢云千枚岩 | Nb2O5:0.08%~0.107%,
Ta2O5:0.004%~0.008% | Nb2O5:0.091% | | Nb(Ta)Ⅷ | 500 | 18.99 | 26°∠65° | 粗面质凝灰熔岩 | Nb2O5:0.08%~0.147%,
Ta2O5:0.004%~0.008% | Nb2O5:0.1135% | | NbⅣ | 460 | 40.20 | 12°∠70° | 含钾长晶屑凝灰质绢云千枚岩 | Nb2O5:0.08%~0.118% | Nb2O5:0.094% |
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