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本文试用对应因子分析的方法,推断和解释一个火山岩铁矿床成因中的某些问题。 一、 铁矿床地质概况 铁矿床产于石炭纪海相火山岩系组成的火山穹窿中。这套火山岩系是由安山质岩浆分异形成的中性、酸性火山熔岩,火山碎屑岩组合。主要岩石类型有:安山玄武质熔岩,安山质火山碎屑岩、英安——流纹质熔岩及火山碎屑岩、凝灰岩等。含矿火山岩系向北、西、南三面逐渐过渡为碎屑灰岩,凝灰质粉砂岩及泥岩,东侧隔一断层为一套侏罗纪酸
In this paper, we try to use the corresponding factor analysis method to infer and explain some problems in the genesis of a volcanic iron deposit. First, the geological overview of iron ore deposits Iron ore production in the Carboniferous marine volcanic rock volcano cave formed. This set of volcanic rocks is composed of andesitic magmatic differentiation of neutral, acidic volcanic lava, pyroclastic combination. The main rock types are: Anshan basaltic lavas, Anshan volcanic clastic rocks, Yingan - rhyolitic lava and volcaniclastic rocks, tuffs and so on. The ore-bearing volcanic rocks gradually transition to clastic limestone, tuffaceous siltstone and mudstone to the north, west and south sides, and a set of Jurassic acid