Petrology and geochemistry of Hulanhoboke volcano in Baikal rift, Russia
俄罗斯贝加尔裂谷带中呼兰霍博克火山岩岩石学及地球化学研究

The volcanic cone of Hulanhoboke Volcano in Tongjing basin,Baikal rift region,consists of volcanic debris such as volcanic bombs,volcanic ashes and mafic lava.Olivine xenocrysts characterize with higher Mg~# relative to olivine phenocrysts in basalt.Some plagioclase phenoerysts have inverse zone and core-mantle-rim textures,and the mantle of plagioclase phenocrysts shows decompressing decomposition texture.One kind clinopyroxene rim shows decomposition texture.Based on chemical composition,this basalt belon...