Understanding the deep mantle: experimental petrology at very high pressures

了解深层地幔：极高压力下的实验岩石学

• 批准号: DP0663319
• 负责人: Prof Hugh O'Neill
• 金额: $ 33.21万
• 依托单位: The Australian National University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2006
• 资助国家: 澳大利亚
• 起止时间: 2006-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0663319
• 关键词: Understanding; deep; mantle; experimental; petrology

The great processes that shape the Earth at its surface, including plate tectonics and continental drift, can only be understood by appreciating how the interior of the Earth works. However, studying the deep Earth is difficult because of the enormous pressures and temperatures involved. This research proposes to simulate conditions in the Earth's lower mantle (that is, below 670 km in depth) by making use of an Australian invented diamond-based ceramic, to double the pressure at which experiments can be performed. The information gained from this fundamental research will help predict how giant ore bodies form. The development of the high-pressure apparatus will also aid material scientists in their quest for novel materials.

只有通过了解地球内部是如何运作的，才能理解塑造地球表面的巨大过程，包括板块构造和大陆漂移。然而，由于涉及到巨大的压力和温度，研究地球深处是困难的。这项研究建议通过使用澳大利亚发明的钻石陶瓷来模拟地球下地幔（即深度低于670公里）的条件，从而使实验可以进行的压力增加一倍。从这项基础研究中获得的信息将有助于预测巨型矿体的形成。高压装置的发展也将帮助材料科学家寻找新材料。