对细碧-石英角斑岩系种属划分和命名的建议  

SUGGESTION ON THE CLASSIFICATION OF SPILITE KERATOPHYRE AND THEIR NOMENCLATURE

作　　者：曾广策[1] 肖玉永[1] 邱家骧[1] 朱云海[1] 

机构地区：[1]中国地质大学地球科学学院

出　　处：《地质科技情报》1997年第2期19-23,共5页Geological Science and Technology Information

基　　金：地矿部科技攻关项目

摘　　要：为深化古海相火山岩的研究，新提出了细碧－石英角斑岩系的种属划分和命名方案，建议首先按岩石化学成分恢复原岩种属名称，然后结合细碧－石英角斑岩系的大类名称确定其种属名称：变质强烈、原生矿物没有或罕见的岩石以原岩种属名称为字头，以大类名称为字尾；变质较弱、原生矿物残晶常见的岩石以大类名称为字头，以原岩种属名称为字尾。评述了该方案的适用性。For promoting the research on paleo marine volcanics,a new classification and nomenclature scheme of spilite keratophyre is offered by authors in this paper.Based on the chemical compositions of rocks,first of all,the names of their primary rocks should be restored.Then,those rocks are classified into two types.To strongly metamorphosed ones which have not or rarely primary minerals,they can be named“names of primary rocks+broad heading names(spilite,keratophyre or quartz keratophyre)”.To the others,we name them“broad heading names+names of primary rocks”.Furthermore,the adaptability of the scheme is assessed.And,we also introduce the good application in the research on paleo marine volcanics of Lajee Mountains in Qinghai province.

关 键 词：石英斑岩 细碧角斑岩系 石英角斑岩系 

分 类 号：P588.132[天文地球—岩石学]