Very large eruptions (>50 km³) and supereruptions (>450 km³) reveal Earth's capacity to produce and store enormous quantities (>1000 km³) of crystal-poor, eruptible magma in the shallow crust. We explore the interplay between crustal evolution and volcanism during a volcanic flare-up in the Taupo Volcanic Zone (TVZ, New Zealand) using a combination of quartz-feldspar-melt equilibration pressures and time scales of quartz crystallization. Over the course of the flare-up, crystallization depths became progressively shallower, showing the gradual conditioning of the crust. Yet, quartz crystallization times were invariably very short (<100 years), demonstrating that very large reservoirs of eruptible magma were transient crustal features. We conclude that the dynamic nature of the TVZ crust favored magma eruption over storage. Episodic tapping of eruptible magmas likely prevented a supereruption. Instead, multiple very large bodies of eruptible magma were assembled and erupted in decadal time scales.

中文翻译：

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爬上地壳阶梯：火山爆发期间岩浆的储层深度演化。

非常大的喷发（> 50 km ³）和超喷发（> 450 km ³）揭示了地球生产和储存大量水（> 1000 km ^{3）的能力。}）浅层地壳中晶体少，易喷出的岩浆。我们结合石英-长石-熔体平衡压力和石英结晶的时间尺度，探索了陶波火山区（新西兰TVZ）火山爆发期间地壳演化与火山作用之间的相互作用。在爆发过程中，结晶深度逐渐变浅，表明地壳逐渐变质。但是，石英的结晶时间总是很短（<100年），这表明非常大的喷发岩浆储层是短暂的地壳特征。我们得出的结论是，TVZ地壳的动态性质比岩浆喷发更有利于储存。爆发性地喷出岩浆可能阻止了喷发。反而，