Years of magma intrusion primed Kīlauea Volcano (Hawai'i) for the 2018 eruption: evidence from olivine diffusion chronometry and monitoring data
Years of magma intrusion primed Kīlauea Volcano (Hawai'i) for the 2018 eruption: evidence from olivine diffusion chronometry and monitoring data
复制标题
多年的岩浆侵入为夏威夷凯劳埃亚火山 2018 年的喷发做好了准备:来自橄榄石扩散测时法和监测数据的证据
DOI:
10.1007/s00445-023-01633-4
复制
发表时间:
2023
影响因子:
3.5
通讯作者:
Longman, Ryan J.
中科院分区:
文献类型:
--
作者:
Mourey, Adrien J.;Shea, Thomas;Costa, Fidel;Shiro, Brian;Longman, Ryan J.
The mechanisms that led to the exceptionally large Kīlauea 2018 eruption are still poorly understood and actively debated. External processes such as rainfall events or flank sliding have been proposed to play a triggering role. Here, we present field, geophysical, and petrological observations to show that internal changes within the magmatic plumbing system most likely led to the eruption. Chemical zoning in olivine crystals records the intrusion of primitive magma that is concurrent with deep seismicity and inflation at the volcano’s summit. Magma replenishment and pressurization of the summit reservoirs already started around 2014 and accelerated towards the eruption. Kīlauea volcano was therefore primed to experience a shift in eruptive activity in 2018. This pressure increase associated with reservoir replenishment may have been sufficient to overcome a previously blocked conduit. These findings imply that precursory signs of years of protracted magma intrusion and pressurization of the system may be recognizable in the future, which could lead to improved hazards mitigation.
登录
查看更多内容
影响因子:
56.9
作者:
F. Sigmundsson
通讯作者:
F. Sigmundsson
影响因子:
3
作者:
Ryan J. Longman;A. Newman;T. Giambelluca;Mathew P. Lucas
通讯作者:
Mathew P. Lucas
影响因子:
2.9
作者:
D. Roman;K. Cashman
通讯作者:
K. Cashman
DOI:
10.1029/2021gc010046
发表时间:
2022
期刊:
Geosystems
影响因子:
--
作者:
Wieser, Penny E.;Edmonds, Marie;Gansecki, Cheryl;Maclennan, John;Jenner, Frances E.;Kunz, Barbara;Antoshechkina, Paula;Trusdell, Frank;Lee, R. L.
通讯作者:
Lee, R. L.
影响因子:
5.3
作者:
M. Patrick;T. Orr;K. Anderson;D. Swanson
通讯作者:
D. Swanson