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Collaborative Research: Geochemical Consequences of Melt Channeling: Exploring a New Class of Models for Geochemical Variability

Collaborative Research: Geochemical Consequences of Melt Channeling: Exploring a New Class of Models for Geochemical Variability
合作研究:熔体通道的地球化学后果:探索一类新的地球化学变化模型
批准号:
0137327
负责人:
Peter Kelemen
金额:
$8.14万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2002
资助国家:
美国
项目状态:
已结题
起止时间:
2002-03-01 至 2005-08-31

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中文摘要
翻译
在这项拟议的研究中,PI将研究地幔中熔体的沟道化和多孔化流动之间的相互作用,以及可能在不同长度尺度上存在的化学不均匀。利用受地质学和岩石学观测约束的理论模型,他们将检验正在融化的系统的基本行为及其预测。研究将主要由一名研究生进行,由私人投资机构以分阶段的方式密切监督,从简单的模型发展到更复杂的(现实的)模型。预计新的模型可以用来检验各种熔融制度(山脊、弧状、羽流)中熔体和地幔残留物中化学不均一性的新想法和观察结果。
英文摘要
In this proposed study the PIs will investigate the interaction between channelized and porous flow of melt in the mantle and chemical heterogeneities that might be present at various length scales. Using theoretical models constrained by geologic and petrologic observations, they will examine the basic behavior of systems undergoing melting and their predictions. The research will primarily be undertaken by a graduate student, with close supervision by the PIs in a staged manner, progressing from simple to more complex (realistic) models. It is expected that the new models can be used to test emerging ideas and observations of chemical heterogeneity in melts and mantle residues in a variety of melting regimes (ridges, arc, plumes).
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