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利用激光拉曼光谱测定了内蒙古东部喀喇沁地区玻基橄辉岩橄榄石斑晶中的原生流体包裹体的成分 ,发现其主要由 CO2 、CO、H2 O、N2 、H2 S、SO2 、芳香族碳氢化合物及少量络阴离子团组成。本文认为 ,此火山岩的橄榄石斑晶中捕获的流体包裹体在一定程度上反映了地幔流体的成分。通过与河北汉诺坝大麻坪地幔岩石捕虏体中的流体成分进行对比 ,认为华北克拉通中、新生代地幔流体成分变化不大 ,它们均形成于软流圈 (层 )上涌、岩石圈伸展的构造背景下。
The composition of primary fluid inclusions in the olivinic peridotite olivine porphyry of the kalaqin region in eastern Inner Mongolia was determined by laser Raman spectroscopy. It was found that the primary fluid inclusions consisted mainly of CO2, CO, H2 O, N2, H2 S, SO2, Family hydrocarbons and a small amount of anion groups. This paper argues that the fluid inclusions trapped in olivine plaques of this volcanic rock, to a certain extent, reflect the composition of the mantle fluid. Comparing with the fluid composition in the mantle xenoliths from the Ma Nuoping mantle in Hannuo dam, it is concluded that the composition of the mantle fluid in the Mesozoic and Cenozoic of the North China Craton has little change and all of them formed in the upwelling of the asthenosphere (layer) Stretched texture background.