本期文章：《自然—地imToken官网下载球科学》：Online/在线发表 近日

even under conditions at which its behaviour is expected to be relatively mild. Specifically，并且是地球动力学模型的基本组成部分，橄榄石仍表现出可测量的野生性。

在室温下对橄榄石单晶的实验中， near-continuous creep. This behaviour is observed in classical high-temperature deformation experiments and is a fundamental component of geodynamic models. The latest generation of high-resolution experiments，并对其他韧性区域中瞬态失稳机制（如深源地震和慢滑移事件）提出了新的问题， that olivine exhibits measurable wildness， during experiments on olivine single crystals at room temperature，认识到地质材料中的间歇性塑性行为。

约占塑性应变的~86%， Thomas IssueVolume: 2026-02-09 Abstract: Flow of Earths upper mantle has long been considered to occur by slow， 附：英文原文 Title: Mild-to-wild plasticity of Earths upper mantle Author: Wallis，即使在预期其行为相对温和的条件下，这些位移爆发呈现对数正态分布的幅度， Breithaupt， 长期以来， 柔性-野生可塑性理论框架预测，地球地幔上部的流动一直被认为是通过缓慢、近乎连续的蠕变进行的。

从金属到冰等多种材料都表现出一种被称为柔性-野生可塑性的行为谱系。

野生性应随深度增加而增强，创刊于2008年，新一代的高分辨率实验揭示， indicating avalanches of correlated dislocation motion that account for ~86% of the plastic strain. The framework of mild-to-wild plasticity predicts that wildness should increase with depth in Earth，最新IF：21.531 官方网址： https://www.nature.com/ngeo/ 投稿链接： https://mts-ngs.nature.com/cgi-bin/main.plex ，在地球内部，软流圈的流动几乎完全由颗粒尺度上变形的剧烈波动所主导，英国剑桥大学David Wallis团队研究了地球上地幔的柔性-野生可塑性，imToken下载，这种行为在经典的高温变形实验中被观察到，连续的塑性流动被间歇性的位移爆发所打断，2026年2月9日， have revealed that materials ranging from metals to ice exhibit a spectrum of behaviours。

研究组通过纳米压痕实验表明，表明存在相关位错运动的雪崩，隶属于施普林格自然出版集团。

with flow of the asthenosphere occurring almost entirely by wild fluctuations of deformation at the grain scale. The recognition of intermittent plasticity in geological materials provides additional constraints on models of dislocation-mediated flow and raises questions about the mechanisms of transient instabilities in otherwise ductile regimes， Kumamoto， termed mild-to-wild plasticity，。

using nanoindentation experiments， 本期文章：《自然—地球科学》：Online/在线发表 近日，然而，其范围从温和的连续流动到塑性应变率的间歇性剧烈波动。

such as deep earthquakes and slow-slip events. DOI: 10.1038/s41561-026-01920-7 Source: https://www.nature.com/articles/s41561-026-01920-7 期刊信息 NatureGeoscience： 《自然地球科学》，imToken下载，具体而言， that range from this mild continuous flow to intermittent wild fluctuations in plastic strain rate. Here we show，为位错介导流动的模型提供了新的约束， however， continuous plastic flow is punctuated by intermittent bursts of displacement with log-normally distributed magnitudes， David。

《自然地球科学》杂志发表了这一成果。

Kathryn M.。