High-temperature Elastic Wave Speeds of Mantle Minerals and their Seismological Implications

地幔矿物的高温弹性波速及其地震学意义

• 批准号: LX0348106
• 负责人: Prof Ian Jackson
• 金额: $ 1.38万
• 依托单位: The Australian National University
• 依托单位国家: 澳大利亚
• 项目类别: Linkage - International
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-07-21 至 2005-07-20
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LX0348106
• 关键词: temperature; Elastic; Wave; Speeds; Mantle

Laboratory measurements of elastic wave speeds are critical for the interpretation of seismological models for the Earth's deep interior. During the past several years, research groups at ANU and Stony Brook University have separately been proving novel experimental techniques for measurement of the temperature dependence of elastic wave speeds. Now a timely collaboration is proposed in which we would exploit access to similar temperature ranges under two very different pressure regimes to examine the mixed pressure-temperature dependence of wave speeds that is so critical for the inference of chemical composition, mineralogical make-up, and temperature variations within the Earth's mantle.

弹性波速度的实验室测量对于解释地球深部内部的地震学模型至关重要。 在过去的几年里，ANU和斯托尼布鲁克大学的研究小组分别证明了测量弹性波速度与温度相关性的新实验技术。 现在提出了一个及时的合作，我们将利用访问类似的温度范围内两个非常不同的压力制度，以检查混合的压力-温度依赖的波速度是如此关键的化学成分，矿物组成的推断，和温度变化在地球的地幔。