F,Cl,S and P were determined,using electron microprobe,in magmatic inclusions trapped within minerals and glass mesostasis from Wudalianchi volcanic rocks.The i
<正> IntroductionRutile,a common oxide mineral,widely occurs in different geological environ-ments.In igneous rocks,especially in plutonic rocks,it exists as a
Rhythmic zoning is ubiquitous in igneous rocks.Based on polymerization and regular solution models,a non-ideal,disequilibrium and non-linear interface equation