摘要
辽西元古宙旧庙基性杂岩的演化及地球动力学意义孙景贵（长春地质学院，长春１３００６１）收稿日期：１９９６－８－１６修改稿：１９９６－１２－１７作者简介：孙景贵男１９６１年生博士生矿床学关键词基性杂岩岩浆演化元古代辽西前寒武纪地质研究已在稳定克拉通地块中...
Jiumiao basic complex exposed in western Liaoning is composed of three stages of intrusive rocks,i.e.webasterite,noritic gabbro and bojite.Based on geological,petrographical,geochemical and isotopic data,it had been verified that these rocks were derived by partial melting from enriched upper mantle . The basic complex was formed through fractional crystalization.The magma event represents the North China Plate splitting at its margin during Sibao movement and starts oceanic crust evolution stage.
出处
《矿物岩石地球化学通报》
CAS
CSCD
1997年第2期41-45,共5页
Bulletin of Mineralogy, Petrology and Geochemistry
关键词
基性杂岩
岩浆演化
元古代
辽西
basic complex
magma evolution
middle Proterozoic
western Liaoning
