3-D Dynamics of the Ferrar Magmatic Mush Column, McMurdo Dry Valleys, Antarctic

南极麦克默多干谷费拉尔岩浆柱的 3-D 动力学

• 批准号: 0440718
• 负责人: Bruce Marsh
• 金额: --
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-15 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0440718&HistoricalAwards=false
• 关键词: Dynamics; Ferrar; Magmatic; Mush; Column

This award supports studies of the Ferrar magma system in the McMurdo Dry Valleys of Antarctica. Its goal is to understand magma transport and differentiation, the primary processes by which continental crust and volcanic magmas form, as well as a key way that planets and meteorite parent bodies differentiate. The old model envisions straws and chambers of molten liquid that pond and differentiate through a rain of crystals. This view has been challenged by the Dry Valleys, where deeply incised valleys produced by tens of millions of years of erosion crosscut an enormous magma body. Deep recesses of the magma body expose stacked, crystal-laden sills that indicate much more complex magmatic processing than previously thought. This project is deciphering the complex processes recorded in these sills.The broader impacts of this work include undergraduate and graduate student education, contributions to museum exhibits, lectures for the broader public, and dissemination of the results in a book.

该奖项支持对南极洲麦克默多干谷费拉尔岩浆系统的研究。它的目标是了解岩浆运输和分化，大陆地壳和火山岩浆形成的主要过程，以及行星和陨石母体分化的关键方式。旧的模型设想了吸管和熔化液体的室，这些液体通过晶体雨聚集和区分。这种观点受到了干谷的挑战，干谷是由数千万年的侵蚀形成的深切口山谷，横切着巨大的岩浆体。岩浆体的深凹处暴露出堆积的、充满晶体的岩壁，这表明岩浆过程比以前认为的要复杂得多。这个项目正在破译这些技能中记录的复杂过程。这项工作的更广泛的影响包括本科生和研究生的教育，对博物馆展览的贡献，对更广泛的公众的讲座，以及在一本书中传播的结果。