Experimental and empirical insight into melting of the early Earth's mantle

早期的地幔产生熔融的温度比今天高得多，形成了具有独特化学和矿物学的岩石。但关于热地幔融化的紧迫知识缺口依然存在。该项目的目的是产生新的实验和经验知识，通过以下方式帮助缩小这些差距： (1)进行高压实验，以完善相组成关系和元素分配； (2)量化克拉通橄榄岩中的矿物组构，以了解早期大陆的运动； (3)首次建立绿岩带火山岩的岩石学深部时间模型。 预期的结果是早期地球融化和构造制度的更好模型，以及对陆地出现的洞察。

The early Earth's mantle produced melt at much higher temperature than today, creating rocks with unique chemistries and mineralogies. But pressing knowledge gaps about hot mantle melting remain. The aim of this project is to generate new experimental and empirical knowledge to help closing these gaps by: (i) conducting high pressure experiments to refine phase-composition relationships and element partitioning; (ii) quantifying mineral fabrics in cratonic peridotites to understand the movement of early continents; and (iii) constructing the first petrological deep time model for greenstone belt volcanic rocks. The expected outcomes are better models for the early Earth's melting and tectonic regimes and insight into the emergence of land.