当太平洋板块在夏威夷下方的地幔柱上移动时岩浆流量减少，导致喷发量、喷发方式和喷发成分发生变化。岩浆活动由高体积的拉斑岩（盾构期）向低体积的碱性（后盾构期和恢复期）岩浆活动过渡，熔体的储存变得更深、更短暂。
为了定量地验证这一点，研究组通过拉曼光谱对来自不同演化阶段的代表性火山的样品进行了高精度流体包裹体气压测定。这表明Kīlauea从盾构阶段的浅层岩浆储存（约1 ~2公里）到后盾构阶段的演化，其中包括火山机构内的岩浆储存（~2公里）和Moho以下的深层岩浆储存（~20 ~ 27公里）。年轻化阶段（钻石头）表现为地幔主导的储层（约22 ~ 30公里）。高熔体通量可能形成从地幔到盾状火山浅层储层的稳定管道。随着熔体通量的减小，莫霍线成为控制熔体停滞和演化的边界。
附：英文原文
Title: Crustal to mantle melt storage during the evolution of Hawaiian volcanoes
Author: Esteban Gazel, Kyle Dayton, Wenwei Liang, Junlin Hua, Kendra J. Lynn, Julia E. Hammer
Issue&Volume: 2025-05-16
Abstract: As the Pacific Plate migrates over the mantle plume below Hawaii, magma flux decreases, resulting in changes in eruptive volume, style, and composition. It is thought that melt storage becomes deeper and ephemeral with the transition from highly voluminous tholeiitic (shield stage) to the less voluminous alkaline (post-shield and rejuvenation stages) magmatism. To quantitatively test this, we applied high-precision fluid inclusion barometry via Raman spectroscopy to samples from representative volcanoes of different evolutionary stages. This suggests an evolution from shield-stage shallow magma storage (~1 to 2 kilometers) for Kīlauea to a post-shield stage that includes crustal magma storage within the volcanic edifice (~2 kilometers) and deeper storage below the Moho (~20 to 27 kilometers) for Haleakalā. The rejuvenation stage (Diamond Head) displays mantle-dominated storage (~22 to 30 kilometers). High melt fluxes likely form stable conduits from the mantle to a shallow reservoir in the shield volcanoes. As melt flux decreases, the Moho becomes the boundary controlling melt stagnation and evolution.
DOI: adu9332
Source: https://www.science.org/doi/10.1126/sciadv.adu9332