陕西省平利县瓦房沟钒矿床地质特征研究

The Research of Geological Character of Wafanggou Vanadium deposit in Pingli County of Shanxi Province

该区位于秦岭褶皱系东段南部的北大巴山加里东褶皱带，出露地层有震旦系、寒武系、奥陶系、志留系，位于平利穹隆复背斜之西翼中段与老县复背斜南翼之间。区内自南向北有F1、F2两条大的区域性断裂，促使该区钒的成矿富集。钒矿体位于车家沟中段，赋存在下寒武统碳质板岩、含碳粘土板岩、含碳绢云千枚岩中，矿体呈带状，受地层控制。碳质粘土岩型，钒矿石主要为泥质结构，显微鳞片变晶结构。富矿石含铝、钾高，钙低；贫矿石含铝、钾低，钙高，表明钒与钾、铝有关，并呈正相关变化。矿体围岩较为稳定，含矿层顶、底板均为千枚岩，局部为炭硅质板岩、薄层灰岩。钒矿床赋存于下寒武统硅质岩、碳质粘土岩，受地层和岩性控制，为沉积层状矿床。不同地区，钒在各赋矿岩性层中的含量有差异，有的主要富集在硅质岩，有的主要富集在碳质粘土岩。

Wafanggou vanadium deposit is locatd in the south of the Beidabashan Caledonian Folded Belt in the east section of the Qinling Fold System. The outcrop is consist of simian, Cambrian, Ordovician, Silurian. In the area has F1 and F2 two large regional characteristic breaks from the south to north, urges this area vanadium the mineralization to concentrate. The vanadium ore body posture in the center of the Chejiagou, savea in lower Cambrian carbonaceous slate, including the carbon clay slate, including the carbon silk cloud hyalite in, the ore body assumes belt-shaped, stratigraphic control. The carbon clay stone, the vanadium ore mainly is the argillaceous structure, micro lamella metacryst structure. The pay ore contains the aluminum, the potassium is high, the calcium is low; The poor rock including the aluminum, the potassium is low, the calcium is high, indicates with the vanadium, the potassium, the aluminum present correlational dependence. The ore body adjacent rock is stable, the top and the bottom rock layer of the ledger wall is the phyllite. The vanadium deposit tax saves in lower cambrian silicon nature crag, the carbon clay stone, stratum and lothological control, for deposition ore deposit.