论文标题
岩浆入侵控制IO的地壳厚度
Magmatic intrusions control Io's crustal thickness
论文作者
论文摘要
io是太阳系中最活跃的身体，由于热熔岩喷发而失去热量。热量是由潮汐加热提供的，被认为是通过岩浆隔离通过地幔传递的，岩浆隔离是一种运输方式，它使其与对流的陆地行星不同。我们提出了一个模型，该模型将潮汐加热到地壳中的火山系统融合，以确定对地壳厚度，岩浆入侵和喷发速率的控制。我们证明岩浆入侵是IO地壳热平衡的关键组成部分。大约80％的岩浆必须放置到地壳的底部，并将其冻结为岩石，以匹配地壳厚度的粗略估计。随着岩浆从部分熔融的地幔上升到地壳中，分解边界层形成，这可以解释高融化区域的推断观察结果。
Io, the most volcanically active body in the solar system, loses heat through eruptions of hot lava. Heat is supplied by tidal heating and is thought to be transferred through the mantle by magmatic segregation, a mode of transport that sets it apart from convecting terrestrial planets. We present a model that couples magmatic transport of tidal heat to the volcanic system in the crust, in order to determine the controls on crustal thickness, magmatic intrusions, and eruption rates. We demonstrate that magmatic intrusions are a key component of Io's crustal heat balance; around 80% of the magma delivered to the base of the crust must be emplaced and frozen as plutons to match rough estimates of crustal thickness. As magma ascends from a partially molten mantle into the crust, a decompacting boundary layer forms, which can explain inferred observations of a high-melt-fraction region.
