
[岩] 分離結晶;[冶][晶體] 分步結晶;分餾結晶作用;分級析晶
The principle and characteristic of continuous multistage fractional crystallization process are introduced.
介紹了連續多級逆流分步結晶過程的原理和特點。
However, the temperatures and oxygen fugacity of magmas at high level magma chamber decreased along with fractional crystallization.
但在高位岩漿房中,隨着分離結晶作用的進行,岩漿的溫度和氧逸度逐漸降低。
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.
運用本文多源多彙模型研究岩漿同化-分異結晶過程中微量元素和穩定同位素的行為,所得的結果與前人AFC模型結果一緻。
Such petrological and geochemical zoning was caused by higher F and H2O contents of the magma, which facilitated fractional crystallization and fluid transfer.
上述岩性和地球化學分帶是由于岩漿中較高的F和H_2O含量,促進了分離結晶和流體搬運的?。
Beside fractional crystallization model, liquid immiscibility of Fluorine-rich granite magma is an important mechanism to form pegmatite and pegmatite type deposit.
除了結晶分異模式外,富氟花崗岩漿液态不混溶作用也是偉晶岩成岩成礦的重要機制。
The pyroxenite xenoliths could be accumulates of the high-pressure fractional crystallization of the parental magma.
輝石岩類捕虜體是由該母岩漿高壓分離結晶堆積的産物。
Fractional crystallization and assimilation constrain lithological composition and fraction, and play a key role in the formation of intrusive complex.
結晶分異和同化混染是侵入岩體形成過程中控制岩相成分和分異程度的主導因素。
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.
它是大陸地幔低度部分熔融産生的堿性玄武岩漿,通過深部AFC混合,尤其是淺部結晶分異機制形成的。
It is most possible that the massifs are of magmatic origin from fractional crystallization of crust-remelted granitic magma.
它們很可能是由地殼矽鋁層重熔的花崗岩漿經結晶分異作用而形成的。
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%).
白榴玄武岩為次生岩漿冷凝産物,是原生岩漿分離結晶約14%的橄榄石、輝石堆積岩,又同化混染了約28%的花崗岩所形成。
The main diagenesis is fractional crystallization assimilation and contamination.
成岩作用是分離結晶和同化混染聯合作用。
The titanium mineralization of eclogites is constrained mainly by the protoliths, in addition, it is also affected by fractional crystallization of magma.
榴輝岩中的钛礦化主要受源岩因素制約,此外,岩漿結晶分異對其也有一定影響。
The feasibility of recovery of naphthalene from the residue of fractional crystallization process by extractive distillation is discussed.
探讨了用萃取精餾法從分步結晶萘殘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.
粗面岩的同位素組成和玄武岩接近,說明粗面岩是玄武質岩漿分離結晶作用形成的。
The petrologic and petrochemical study has shown that the main mechanism controlling the magmatic evolution is fractional crystallization of minerals.
岩相學及岩石化學研究表明,岩漿演化機制是礦物分離結晶作用。
Further stu***s indicate that mineralization has intimate relationship with magmatic fractional crystallization, fluid boiling and fluid mixing.
進一步研究發現,礦化與岩漿的結晶分異作用、流體的沸騰作用及流體的混合作用關系密切。
The purity of refined naphthalene could be more than 99.5% by said fractional crystallization process.
通過分級結晶提純過程,可獲得純度達到99.5%以上的精萘産品。
In this paper a technology of parametric pumping fractional crystallization and a crystallizer with a slug flow vertical bubble tube are presented.
本文采用參數泵分步結晶新工藝和開發的直立彈狀氣泡管結晶器提純制取精萘,則克服了通常方法的缺點。
An easy method of rare earth separation—acid fractional crystallization was put forward.
提出了一種利用酸分離稀土的簡便方法———酸分級結晶法。
Geochemical features of the granite suggest that it is a typical rift-type granite with the evolution of fractional crystallization.
地球化學研究表明花崗岩具有分離結晶演化特征,屬典型的裂谷型花崗岩。
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、氟花崗岩可能的分異是上部液态分離,下部分離結晶;
分異結晶作用(Fractional Crystallization) 是岩漿冷卻過程中發生的一種重要地球化學過程。當岩漿緩慢冷卻時,不同礦物因其熔點和化學成分的差異,會按特定順序依次結晶析出。先結晶的礦物(如橄榄石、輝石)因密度較大可能下沉或與殘餘熔體分離,導緻殘餘岩漿的成分持續改變。這一過程會顯著影響岩漿的演化路徑,形成多樣化的火成岩(如玄武岩→安山岩→流紋岩序列),并可能富集特定金屬元素形成礦床。
分異結晶作用的經典實例包括層狀侵入體(如布什維爾德雜岩體)中的礦物分層現象,以及島弧火山岩的成分分異序列。其理論依據源于鮑文反應序列,描述了礦物在岩漿中的結晶順序與分離機制。該概念對理解地殼形成、火山噴發類型及礦産資源分布具有核心意義。
來源說明
因搜索結果未提供直接引用鍊接,本文内容綜合參考了以下權威資料:
Fractional Crystallization(分步結晶/分離結晶作用) 是一種通過控制結晶過程實現物質分離或提純的技術,常見于化學、地質學和工業領域。以下是詳細解釋:
定義與原理
應用領域
技術特點
示例公式
若某溶液含A、B兩種物質,其溶解度隨溫度變化的公式可表示為:
$$ S_A = k_A e^{-Delta H_A / RT} $$
$$ S_B = k_B e^{-Delta H_B / RT} $$
當降溫時,溶解度較低的成分(如A)優先析出,實現分離。
如需更完整的應用案例或技術細節,等來源。
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