A lower bound on the rheological evolution of magmatic liquids during the 2018 Kilauea eruption
A lower bound on the rheological evolution of magmatic liquids during the 2018 Kilauea eruption
复制标题
2018 年基拉韦厄火山喷发期间岩浆液体流变演化的下限
DOI：
10.1016/j.chemgeo.2021.120272
复制
发表时间：
2021
期刊：
影响因子：
3.9
通讯作者：
Dingwell, D.B.
中科院分区：
文献类型：
--
作者：
Soldati, A.;Houghton, B.F.;Dingwell, D.B.
在2018年为期四个月的基拉韦厄下东裂谷带（LERZ）喷发期间，岩浆的大量化学成分从玄武岩到安山岩不等。这种成分的多样性反映在喷发的风格上，从夏威夷喷泉到斯特龙博利爆炸。在这里，我们量化的喷发产品的熔体粘度的演变，通过高温实验室实验进行的一个代表性的样品集，在现场收集后立即喷发系列。这套18个样品包括所有主要喷发阶段（早期阶段I，晚期阶段I，阶段II，阶段III，裂缝17）。结果说明了显着的流变变化的喷发产品，并出现链接到喷发动力学的变化。我们提出了一个新的标准流变学研究的多幕喷发，从而精确，近实时的粘度结果，在正在进行的喷发将成为一个常规组成部分的火山监测在未来的爆发events.Plain语言摘要在2018年喷发的基拉韦厄，新兴的岩浆跨越了更广泛的成分范围比以往任何时候都在一个单一的喷发期间观察到的。这种成分的多样性与各种各样的喷发风格相匹配，从更持久的喷泉到短暂的爆炸。喷发停止后，我们立即收集了一套代表性的18个样品在现场，其中包括所有主要的喷发阶段（早期阶段I，晚期阶段I，阶段II，阶段III，裂缝17）。我们通过高温实验室实验测量了这些样品的熔体粘度。结果表明，粘度的显着变化，这是与高度可变的喷发动力学。在这里，我们提出了一个新的标准，从粘度的角度来看，多幕喷出喷发的研究。我们希望并期待这种方法在未来的喷发中成为常规做法。
During the four month-long 2018 Kilauea Lower East Rift Zone (LERZ) eruption, the bulk chemical compositions of magma ranged from basalt to andesite. This compositional variety was reflected in eruptive style, which ranged from Hawaiian fountaining to Strombolian explosions. Here, we quantified the evolution of the melt viscosity of the eruptive products through high-temperature laboratory experiments performed on a representative sample set that was collected in the field immediately after the eruptive series. This suite of 18 samples comprises all major eruptive phases (early phase I, late phase I, phase II, phase III, fissure 17). The results illustrate the significant rheological variability of the eruptive products, and appear to link to variations in eruption dynamics. We propose a new standard for the rheological study of a multi-episode effusive eruption, whereby precise, near-real-time viscosity results are obtained during ongoing eruptions will become a routine component of volcano monitoring during future eruptive events.Plain language summaryDuring the 2018 eruption of Kilauea, emerging magma spanned a wider compositional range than ever previously observed during a single eruption. This compositional diversity was matched by a variety in eruptive styles, which ranged from more persistent fountaining to short-lived explosions. Immediately after the eruption ceased, we collected a representative suite of 18 samples in the field, which comprises all major eruptive phases (early phase I, late phase I, phase II, phase III, fissure 17). We measured the melt viscosity of such samples through high-temperature laboratory experiments. The results illustrate a significant variability in viscosity, which is linked to the highly variable eruption dynamics. Here we propose a new standard for the study of multi-episode effusive eruptions from a viscosity standpoint. We hope and expect that this methodology will become routine practice during future eruption.
登录
查看更多内容
德国玻璃技术协会的第一标准玻璃和高温下粘度的实现
影响因子：
2.3
作者：
G. Meerlender
通讯作者：
G. Meerlender
2014-2015 年 Piton de la Fournaise 爆发的危机：跨国应对模式回顾
影响因子：
--
作者：
Andrew J. L. Harris;N. Villeneuve;A. D. Muro;Valérie Ferrazzini;A. Peltier;Diego Coppola;Massimiliano Favalli;Patrick Bachèlery;J. Froger;L. Gurioli;S. Moune;I. Vlastélic;Bo Galle;S. Arellano
通讯作者：
S. Arellano
影响因子：
56.9
作者：
Gansecki, Cheryl;Lee, R. Lopaka;Parcheta, Carolyn
通讯作者：
Parcheta, Carolyn
影响因子：
5.3
作者：
C. Losq;D. Neuville;R. Moretti;P. Kyle;C. Oppenheimer
通讯作者：
C. Losq;D. Neuville;R. Moretti;P. Kyle;C. Oppenheimer
影响因子：
1
作者：
Harris, Andrew J. L.;Chevrel, Magdalena Oryaelle;Gurioli, Lucia
通讯作者：
Gurioli, Lucia