Models for the evolution of seamounts
Models for the evolution of seamounts
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海山演化模型
DOI：
10.1093/gji/ggac285
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发表时间：
2022
影响因子：
2.8
通讯作者：
Sandwell, David T.
中科院分区：
文献类型：
--
作者：
Wessel, Paul;Watts, Anthony B.;Kim, Seung-Sep;Sandwell, David T.
海山是散落在海底的火山构造。它们对于了解海洋科学的许多方面都很重要，例如板块构造、火山熔体收支、海洋环流、海啸波衍射、潮汐能耗散和质量损耗。从几何学上讲，海山有许多大小和形状，为了建立海山模型，进行形态学、重力学或均衡学研究，最好有一些性质众所周知的简单分析模型。在这里，我们提出了一个家庭的海山模型，可用于这种研究，涵盖了最初的建设阶段和后来的大量浪费的部门崩溃。我们还获得了现实的轴对称密度变化，与地震层析成像研究观察到的一阶结构兼容。
Seamounts are volcanic constructs that litter the seafloor. They are important for understanding numerous aspects of marine science, such as plate tectonics, the volcanic melt budget, oceanic circulation, tsunami wave diffraction, tidal energy dissipation and mass wasting. Geometrically, seamounts come in many sizes and shapes, and for the purpose of modelling them for morphological, gravimetric or isostatic studies it is convenient to have simple analytical models whose properties are well known. Here, we present a family of seamount models that may be used in such studies, covering both the initial construction phase and later mass-wasting by sectoral collapses. We also derive realistic axisymmetric density variations that are compatible with observed first-order structure from seismic tomography studies.