山东省沂水宿山钛铁矿矿床地质特征

Geological Characteristics of Sushan Titanium Iron Deposit in Yishui County in Shandong Province

摘要:

山东省沂水宿山钛铁矿属于岩浆结晶分异矿床。含矿岩石赋存于古元古代早期红门岩套三官寨中粗粒角闪辉长岩中。矿区内共圈定钛铁矿矿体1个,矿体长1665m，宽4.01～77.14m，矿体单样品TiO2含量一般为5.00%～9.00%，平均6.66%。矿石中TiO2含量与TFe含量变化呈正相关关系。矿体经风化淋滤后，多发生褐铁矿、钛铁矿化现象，使矿体地表露头多呈红褐色,为其重要找矿标志。

Abstract:

Sushan ilmenite deposit in Yishui county of Shandong province belongs to magmatic crystallization differentiation deposit. Orebearing rock occurs in coarse grain hornblende gabbro in Sanguanzhai of early Proterozoic Hongmen rock suite. One ilmenite ore body has been circled with the length of 1665m and the width of 4.01～77.14m. TiO2 content in ore sample is generally 5%~9%, and average value is 6.66%. The content of TiO2 has a positive relationship with the content of TFe. Ore bodies mainly occur as brown iron, titanium mineralization phenomenon after weathering and leaching. So that ore bodies outcropped mainly shown as reddish brown. It is the important criteria for ore prospecting.