Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL086784 |
Crystal Fractionation by Crystal-Driven Convection | |
Culha, Cansu1; Suckale, Jenny1; Keller, Tobias1,2; Qin, Zhipeng1 | |
2020-02-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Scotland |
英文摘要 | Fractional crystallization is an essential process proposed to explain worldwide compositional abundances of igneous rocks. It requires crystals to precipitate from the melt and segregate from its residual melt, or experience crystal fractionation. The compositional abundances of volcanic systems show a bell curve distribution suggesting that the process has variable efficiencies. We test crystal fractionation efficiency in convective flow in low to intermediate crystallinity regime. We simulate the physical segregation of crystals from their residual melt at the scale of individual crystals, using a direct numerical method. We find that at low particle Reynolds numbers, crystals sink in clusters. The relatively rapid motion of clusters strips away residual melt. Our results show cluster settling can imprint observational signatures at the crystalline scale. The collective crystal behavior results in a crystal convection that governs the efficiency of crystal fractionation, providing a possible explanation for the bell curve distribution in volcanic systems. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000529120100068 |
WOS关键词 | CRYSTALLIZATION ; DIFFERENTIATION ; SEGREGATION ; CHAINS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/279683 |
专题 | 气候变化 |
作者单位 | 1.Stanford Univ, Dept Geophys, Stanford, CA 94305 USA; 2.Univ Glasgow, Sch Earth & Geog Sci, Glasgow, Lanark, Scotland |
推荐引用方式 GB/T 7714 | Culha, Cansu,Suckale, Jenny,Keller, Tobias,et al. Crystal Fractionation by Crystal-Driven Convection[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(4). |
APA | Culha, Cansu,Suckale, Jenny,Keller, Tobias,&Qin, Zhipeng.(2020).Crystal Fractionation by Crystal-Driven Convection.GEOPHYSICAL RESEARCH LETTERS,47(4). |
MLA | Culha, Cansu,et al."Crystal Fractionation by Crystal-Driven Convection".GEOPHYSICAL RESEARCH LETTERS 47.4(2020). |
条目包含的文件 | 条目无相关文件。 |
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