MINERALOGICAL FEATURES OF ULTRAMAFICHYPOXENOLITHS IN ALKALI-RICH PORPHYRY

作者：LIUXianfan YANGZhengxi LIUJiaduo ZHANGChengjiang WUDechao LIYouguo

摘要：Ultramafic hypoxenoliths found in the alkali-rich porphyry in the Liuhe Village, Heqing, Yunnan,China, are of great significance in understanding the origin and evolution of the porphyry. This paper discusses the mineralogical features of the hypoxenoliths. It shows that the xenoliths are characterized by the upper mantle rocks modified to certain extent by the enriched mantle fluid metasomatism in the mantle environment, with the enriched mantle property of Iow-degree partial melting. This constitutes the important mineralogical evidence for the petrogenesis and mineralization of alkali-rich porphyry.

发文机构：InstituteofEarthScience

关键词：云南鹤庆地区富碱斑岩超镁铁亚异晶体矿物特征岩石特性黑云母闪石alkali-rich porphyrydeep-source xenolithsenriched mantlelow-degree partial meltingmineralogical characteristics

分类号： P573[天文地球—矿物学][天文地球—地质学]P584[天文地球—岩石学][天文地球—地质学]