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DOI | 10.1038/s41467-019-13518-2 |
Crystal scavenging from mush piles recorded by melt inclusions | |
[unavailable] | |
2019-12-20 | |
发表期刊 | Nature Communications |
出版年 | 2019 |
卷号 | 10 |
文章类型 | Article |
语种 | 英语 |
英文摘要 | Olivine-hosted melt inclusions are commonly used to determine pre-eruptive storage conditions. However, this approach relies on the assumption that co-erupted olivines have a simple association with their carrier melts. We show that primitive olivine crystal cargoes and their melt inclusions display a high degree of geochemical disequilibrium with their carrier melts at K墨lauea Volcano, Hawai鈥檌. Within a given eruption, melt inclusions trapped in primitive olivine crystals exhibit compositional diversity exceeding that in erupted lava compositions since 1790 CE. This demonstrates that erupting liquids scavenge crystal cargoes from mush piles accumulating diverse melt inclusion populations over timescales of centuries or longer. Entrainment of hot primitive olivines into cooler, evolved carrier melts drives post-entrapment crystallization and sequestration of CO2 into vapour bubbles, producing spurious barometric estimates. While scavenged melt inclusion records may not be suitable for the investigation of eruption-specific processes, they record timescales of crystal storage and remobilization within magmatic mush piles. |
领域 | 资源环境 |
URL | 查看原文 |
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文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/232489 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | [unavailable]. Crystal scavenging from mush piles recorded by melt inclusions[J]. Nature Communications,2019,10. |
APA | [unavailable].(2019).Crystal scavenging from mush piles recorded by melt inclusions.Nature Communications,10. |
MLA | [unavailable]."Crystal scavenging from mush piles recorded by melt inclusions".Nature Communications 10(2019). |
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