新疆北山地区红石山镁铁-超镁铁岩体的岩石矿物学特征:对同化混染和结晶分异过程的启示

苏本勋, 秦克章, 孙赫, 唐冬梅, 肖庆华, 曹明坚. 新疆北山地区红石山镁铁-超镁铁岩体的岩石矿物学特征:对同化混染和结晶分异过程的启示[J]. 岩石学报, 2009, 25(4): 873-887.
引用本文: 苏本勋, 秦克章, 孙赫, 唐冬梅, 肖庆华, 曹明坚. 新疆北山地区红石山镁铁-超镁铁岩体的岩石矿物学特征:对同化混染和结晶分异过程的启示[J]. 岩石学报, 2009, 25(4): 873-887.
SU BenXun, QIN KeZhang, SUN He, TANG DongMei, XIAO QingHua, CAO MingJian. Petrological and mineralogical characteristics of Hongshishan mafic-ultramafic complex in Beishan area, Xinjiang: Implications for assimilation and fractional crystallization[J]. Acta Petrologica Sinica, 2009, 25(4): 873-887.
Citation: SU BenXun, QIN KeZhang, SUN He, TANG DongMei, XIAO QingHua, CAO MingJian. Petrological and mineralogical characteristics of Hongshishan mafic-ultramafic complex in Beishan area, Xinjiang: Implications for assimilation and fractional crystallization[J]. Acta Petrologica Sinica, 2009, 25(4): 873-887.

新疆北山地区红石山镁铁-超镁铁岩体的岩石矿物学特征:对同化混染和结晶分异过程的启示

  • 基金项目:

    中国科学院知识创新工程重要方向项目(KZCX2-YW-107)和国家“十一五”科技支撑计划新疆305项目东天山铜镍矿专题(2006BAB07B03-01)

Petrological and mineralogical characteristics of Hongshishan mafic-ultramafic complex in Beishan area, Xinjiang: Implications for assimilation and fractional crystallization

  • 结晶分异和同化混染是侵入岩体形成过程中控制岩相成分和分异程度的主导因素。探讨这两个因素在岩浆演化过程中的作用阶段及对矿物成分变化的影响对揭示岩体成因和成矿具有重要意义。新疆北山地区的红石山镁铁-超镁铁岩体钻孔剖面上岩相和各种矿物含量的渐变特征反映了岩浆演化的结晶分异过程。长石中Si、Na、Al、Ca和单斜辉石中Si、Al、Ti、Ca、Mg的系统变化揭示不同程度的同化混染作用。橄榄石和尖晶石对同化混染作用的反应较为迟缓,但其Fo、Ni和Cr#、Ti对新鲜岩浆注入较为敏感。这些矿物化学对岩浆演化过程的推断与全岩成分变化的指示相一致。因此,矿物化学在研究岩浆演化方面将会发挥重要作用。
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出版历程
收稿日期:  2008-12-18
修回日期:  2009-03-03
刊出日期:  2009-04-30

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