探讨六棵树金矿地质特征及找矿标志

Geological characteristics and prospecting criteria of six tree gold deposits

六棵树金矿位于新疆奇台县境内,大地构造位置位于北准噶尔弧盆带,卡拉麦里晚古生代弧后盆地,区域地层出露非常丰富,松喀尔苏组以及姜巴斯套组(下石炭统)地层在该区广泛出露,卡拉麦里组以及北塔山组(中泥盆统)与库布苏上下压群(志留系)也广泛发育,还有侏罗纪以及双井子组和白垩纪等。金含矿层位为下石炭统姜巴斯套组上下亚组。区内断裂和褶皱构造发育,岩浆活动频繁,初步判断该矿成因为浅成中温热液玢岩脉型金矿。现就其地质特征及矿床成因分述如下。

The six tree gold deposits are located in Qitai County, Xinjiang. The tectonic position is located in the northern Junggar arc basin belt and the late Paleozoic back arc basin of Cara Mali, which is very rich in regional strata. The strata of the pine Kalu group and the Zingiber Bush group （Lower Carboniferous） are widely exposed in this area, the Cara Mali formation and the North Tashan formation （middle）. The Devonian and the upper and lower pressure groups （Silurian） are also widely developed, including Jurassic, Shuangjing formation and Cretaceous. In the area, faults and folds are developed and magmatic activity is frequent. It is preliminarily judged that the deposit is formed by shallow mesothermal hydrothermal porphyry vein type gold deposit. The geological characteristics and genesis of the deposit are described below.