内蒙古浩茫古古塔地区中生代火山岩岩石地球化学特征

摘要

s:Based on studies of petrology, petrochemistry, trace elements and rare earth elements in the Late Jurassic volcanic rocks, referring to the analysis data of the representative volcanoes in the area, through computer arrangement and processing, the authors discuss the geochemical features of the volcanic rocks in this area and inquire into the formation and evolution of Mesozoic volcanic rocks in the main ridge of the Greater Khingan Range.%作者通过对晚侏罗世火山岩岩石学、岩石化学、稀土、微量元素的调查和研究工作，参考有关学者在区域上较有代表性的火山样品分析数据，通过综合整理与计算处理，讨论了本区火山岩的岩石地球化学特征，对大兴安岭主脊中生代火山岩的形成及演化进行了探讨。