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Fabricating Cotton Analytical Devices
Published on: August 30, 2016
在橄石中,水引起的织物转换
1University of Minnesota, Department of Geology and Geophysics, Minneapolis, MN 55455, USA.
概括
将水添加到奥利文中显著改变了地球上层地幔的地震异构性. 这一发现有助于解释像太平洋中部和俯冲区这样的地区复杂的地震观测.
科学领域:
- 地质物理学 地质物理学
- 矿物物理 矿物物理
- 地震学 地震学
背景情况:
- 在上层地幔的地震异构性解释通常依赖于缺水的橄木面料.
- 现有的模型很难解释在某些地区观察到的异常地震异性质模式.
研究的目的:
- 为了研究显著的含水量对橄织物的影响.
- 重新评估在含水条件下地幔流体几何和地震异构性之间的关系.
- 为了解释上层地幔令人费解的地震异性观测.
主要方法:
- 控制,高含水量的橄素的实验变形.
- 分析得到的结晶学偏好方向 (CPO) 或晶格偏好方向 (LPO).
- 基于从实验中获得的织物建模的地震异性质模型.
主要成果:
- 奥利文的高含水量大大改变了流量和地震异性质之间的关系.
- 水性橄岩织物可以产生与干燥橄岩相差显著的地震异性图案.
- 橄中丰富的水的存在可以解释太平洋中部的异常异构和潜水区的复杂模式.
结论:
- 上层地幔中的水丰富是影响地震异构的一个关键因素.
- 重新解释地震异构性需要考虑水在橄中所扮演的角色.
- 水性地幔区域可能会呈现出明显的地震特征,现在可以更好地理解.
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