【摘要】 皮尔斯元素比是岩石化学中主元素与一不变元素之比。不变元素是指不参加所研究的地质过程的元素。本文概要介绍了皮尔斯元素比方法,并应用该方法中的斜率法初步探讨了中国东部几个具有代表性的新生代火山岩的同源性及岩浆演化。其中包括五大连池-科洛地区钾质火山岩的同源性、汉诺坝大麻坪及长白山火山岩浆的演化特征。结果表明该方法能较好地应用来研究火山岩浆系列同源性及演化。与传统方法相比较该方法使岩石化学数据得到更充分更准确地应用,将来有可能获得更广泛地应用和发展。更多还原

【Abstract】 Pearce’s element ratio is a ratio of variable elements to constant element which didn’t participate in the geological process to be studied in petrochemistry. In this paper, the authors discuss the comagmatic properties and differentiation processes of some Cenozoic basalts in Eastern China using the method: the eomagmatic property of potassium-rich basalts in Wudalianchi-Keluo area in Heilongjiang Province, the magma differentiation processes of Cenozoic basalts in Hannuoba and. Changbaishan areas, in Hebei and Jilin Provinces, respectively.The results show that the Pearce’s element ratio can be used to study the origins and differentiation processes of basalts, and can be a good supplementary method to other traditional methods and have more replete and efficient use in whole-rock analysis.更多还原