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.

發文機構：InstituteofEarthScience

關鍵詞：云南鶴慶地區富堿斑巖超鎂鐵亞異晶體礦物特征巖石特性黑云母閃石alkali-rich porphyrydeep-source xenolithsenriched mantlelow-degree partial meltingmineralogical characteristics

分類號： P573[天文地球—礦物學][天文地球—地質學]P584[天文地球—巖石學][天文地球—地質學]