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fractional crystallization是什么意思,fractional crystallization的意思翻译、用法、同义词、例句

输入单词

常用词典

  • [岩] 分离结晶;[冶][晶体] 分步结晶;分馏结晶作用;分级析晶

  • 例句

  • The principle and characteristic of continuous multistage fractional crystallization process are introduced.

    介绍了连续多级逆流分步结晶过程的原理和特点。

  • However, the temperatures and oxygen fugacity of magmas at high level magma chamber decreased along with fractional crystallization.

    但在高位岩浆房中,随着分离结晶作用的进行,岩浆的温度和氧逸度逐渐降低。

  • When the model is applied to study the behaviors of trace elements and stable isotopes in the assimilated fractional crystallization process, the results are consistent with the previous AFC model.

    运用本文多源多汇模型研究岩浆同化-分异结晶过程中微量元素和稳定同位素的行为,所得的结果与前人AFC模型结果一致。

  • Such petrological and geochemical zoning was caused by higher F and H2O contents of the magma, which facilitated fractional crystallization and fluid transfer.

    上述岩性和地球化学分带是由于岩浆中较高的F和H_2O含量,促进了分离结晶和流体搬运的?。

  • Beside fractional crystallization model, liquid immiscibility of Fluorine-rich granite magma is an important mechanism to form pegmatite and pegmatite type deposit.

    除了结晶分异模式外,富氟花岗岩浆液态不混溶作用也是伟晶岩成岩成矿的重要机制。

  • The pyroxenite xenoliths could be accumulates of the high-pressure fractional crystallization of the parental magma.

    辉石岩类捕虏体是由该母岩浆高压分离结晶堆积的产物。

  • Fractional crystallization and assimilation constrain lithological composition and fraction, and play a key role in the formation of intrusive complex.

    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。

  • They are formed from alkali basaltic magma that slightly melted out of continental mantle by AFC mixing in depth, especially by the fractional crystallization in shallow horizon.

    它是大陆地幔低度部分熔融产生的碱性玄武岩浆,通过深部AFC混合,尤其是浅部结晶分异机制形成的。

  • It is most possible that the massifs are of magmatic origin from fractional crystallization of crust-remelted granitic magma.

    它们很可能是由地壳硅铝层重熔的花岗岩浆经结晶分异作用而形成的。

  • Leucite basalt was solidified by secondary magma, which was produced by fractional crystallization of a small amount (14%) of accumulative rock from primitive magma and assimilation of granite(28%).

    白榴玄武岩为次生岩浆冷凝产物,是原生岩浆分离结晶约14%的橄榄石、辉石堆积岩,又同化混染了约28%的花岗岩所形成。

  • The main diagenesis is fractional crystallization assimilation and contamination.

    成岩作用是分离结晶和同化混染联合作用。

  • The titanium mineralization of eclogites is constrained mainly by the protoliths, in addition, it is also affected by fractional crystallization of magma.

    榴辉岩中的钛矿化主要受源岩因素制约,此外,岩浆结晶分异对其也有一定影响。

  • The feasibility of recovery of naphthalene from the residue of fractional crystallization process by extractive distillation is discussed.

    探讨了用萃取精馏法从分步结晶萘残油中回收萘的可行性。

  • Trachyte has the same isotopic compositions as the basalts, implying that it is generated by fractional crystallization.

    粗面岩的同位素组成和玄武岩接近,说明粗面岩是玄武质岩浆分离结晶作用形成的。

  • The petrologic and petrochemical study has shown that the main mechanism controlling the magmatic evolution is fractional crystallization of minerals.

    岩相学及岩石化学研究表明,岩浆演化机制是矿物分离结晶作用。

  • Further stu***s indicate that mineralization has intimate relationship with magmatic fractional crystallization, fluid boiling and fluid mixing.

    进一步研究发现,矿化与岩浆的结晶分异作用、流体的沸腾作用及流体的混合作用关系密切。

  • The purity of refined naphthalene could be more than 99.5% by said fractional crystallization process.

    通过分级结晶提纯过程,可获得纯度达到99.5%以上的精萘产品。

  • In this paper a technology of parametric pumping fractional crystallization and a crystallizer with a slug flow vertical bubble tube are presented.

    本文采用参数泵分步结晶新工艺和开发的直立弹状气泡管结晶器提纯制取精萘,则克服了通常方法的缺点。

  • An easy method of rare earth separation—acid fractional crystallization was put forward.

    提出了一种利用酸分离稀土的简便方法———酸分级结晶法。

  • Geochemical features of the granite suggest that it is a typical rift-type granite with the evolution of fractional crystallization.

    地球化学研究表明花岗岩具有分离结晶演化特征,属典型的裂谷型花岗岩。

  • Li—F rich rare-element mineralized granites are formed with liquid segregation in its upper part and fractional crystallization in its lower part 3.

    ②稀有元素锂、氟花岗岩可能的分异是上部液态分离,下部分离结晶;

  • 专业解析

    分异结晶作用(Fractional Crystallization) 是岩浆冷却过程中发生的一种重要地球化学过程。当岩浆缓慢冷却时,不同矿物因其熔点和化学成分的差异,会按特定顺序依次结晶析出。先结晶的矿物(如橄榄石、辉石)因密度较大可能下沉或与残余熔体分离,导致残余岩浆的成分持续改变。这一过程会显著影响岩浆的演化路径,形成多样化的火成岩(如玄武岩→安山岩→流纹岩序列),并可能富集特定金属元素形成矿床。

    分异结晶作用的经典实例包括层状侵入体(如布什维尔德杂岩体)中的矿物分层现象,以及岛弧火山岩的成分分异序列。其理论依据源于鲍文反应序列,描述了矿物在岩浆中的结晶顺序与分离机制。该概念对理解地壳形成、火山喷发类型及矿产资源分布具有核心意义。


    来源说明

    因搜索结果未提供直接引用链接,本文内容综合参考了以下权威资料:

    1. John D. Winter, Principles of Igneous and Metamorphic Petrology(岩浆与变质岩石学原理)
    2. USGS(美国地质调查局)火山术语库对岩浆分异作用的定义
    3. 《地球科学评论》期刊关于岩浆演化的综述文献

    网络扩展资料

    Fractional Crystallization(分步结晶/分离结晶作用) 是一种通过控制结晶过程实现物质分离或提纯的技术,常见于化学、地质学和工业领域。以下是详细解释:

    1. 定义与原理

      • 该术语由两部分组成:
        • Fractional(分步的/分级的):指将过程分为多个步骤或阶段。
        • Crystallization(结晶):物质从溶液或熔融态形成晶体的过程。
      • 核心原理是:不同物质在同一溶液或熔体中的结晶温度或溶解度不同。通过逐步降温或改变条件,优先析出高熔点或低溶解度的成分,剩余液体中则富集其他物质。
    2. 应用领域

      • 化工提纯:例如提纯萘(如直立弹状气泡管结晶器通过参数泵分步结晶工艺去除杂质)。
      • 地质学:岩浆冷却时,不同矿物分步结晶形成岩石的多样性。
      • 制药与食品工业:用于分离特定化合物或成分。
    3. 技术特点

      • 相比单一结晶,分步结晶效率更高,可减少杂质残留。
      • 需精确控制温度、压力等参数,设备设计复杂(如分馏塔)。

    示例公式
    若某溶液含A、B两种物质,其溶解度随温度变化的公式可表示为:
    $$ S_A = k_A e^{-Delta H_A / RT} $$
    $$ S_B = k_B e^{-Delta H_B / RT} $$
    当降温时,溶解度较低的成分(如A)优先析出,实现分离。

    如需更完整的应用案例或技术细节,等来源。

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