论文部分内容阅读
涑水杂岩出露于中条山西北部,主要由不同成分的长英质片麻岩系和表壳岩系构成。其中夹杂有多量的镁铁—超镁铁质构造岩块,并被晚期钾质花岗岩和各类基性岩脉侵入。涑水杂岩遭受多期强烈变形和高度变质,是一套古老的变质杂岩。关于涑水杂岩的时代归属,历来认识不一。虽然涑水杂岩在岩石组合、构造变形和地球化学特征诸方面与太华群相类似,可以对比,被认为同属晚太古宇,但由于以往在涑水杂岩中所测得的年龄值最大仅达18亿年左右,因此,开展涑水杂岩的同位素年代学研究,实属亟
The Huangshui complex is exposed in the northern part of the central part of Shanxi Province and is mainly composed of feldspathic gneiss and crustal rocks with different compositions. Including a large amount of mafic-ultramafic tectonic blocks, and was invaded by late potash granites and various types of basic dikes. Pluton complex suffered severe deformation and high degree of metamorphism, is a set of ancient metamorphic complex. There has always been a different understanding of the age attributed to the igneous complexes. Although the Pleistocene complex is similar to the Taihuafa in terms of rock assemblage, tectonic deformation and geochemical characteristics, it can be considered as a Late Archean, but because of the highest age value previously measured in the Pleatite Only 1.8 billion years or so, therefore, to carry out isotopic chronological study of the Yushui complex, it is urgent