Coordination Funds

协调基金

• 批准号: 439826057
• 负责人: Professor Dr. Sumit Chakraborty, Ph.D.
• 金额: --
• 依托单位: Institut für Geologie, Mineralogie und Geophysik
• 依托单位国家: 德国
• 项目类别: Research Units
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/439826057?language=en
• 关键词: Coordination; Funds

Geological processes occur in and on the Earth over a range of timescales that form a nested, hierarchical structure. Determining the durations of processes that occur on the shorter end of this time-spectrum has been a challenge. The tools of diffusion chronometry have emerged as a very promising method to provide solutions in many situations. High temperature magmatic systems provide an excellent natural laboratory for developing and calibrating these tools because various kinds of observations from monitoring volcanoes are able to provide cross checks on the results. Subsequently, the newly developed and refined tools may then be applied to a much wider range of geological and planetary settings. This project aims to bring together field geologists, experimental scientists, theoreticians and modellers from geosciences as well as neighbouring fields of physics and materials science to advance this development. Some of the main objectives of the first phase of the proposal for this research unit are: the measurement of missing diffusion parameters in pyroxenes and plagioclase, exploring the recently discovered role of isotopic fractionation at high temperatures due to diffusion, calibrating phase relations to enable the setting of boundary and initial conditions in high resolution diffusion models, exploring the role of textural evolution, and field tests in a divergent as well as at a convergent plate margin magmatic setting (Oman and Kamchatka, respectively).These will be accompanied by the development of user-friendly codes that incorporate the advances. The software would be distributed to the general community free of cost. Future plans include extension to more complex magmatic (e.g. explosive, caldera forming events) and melt-fluid- rock systems (migmatites, mantle metasomatism, ore formation). These would necessitate studies of diffusion in more complex minerals and polycrystalline systems (e.g. amphiboles, micas, water-bearing systems).

地质过程发生在地球和地球上的一系列时间尺度，形成了嵌套的层次结构。确定在此时间谱的较短末端发生的过程持续时间是一个挑战。扩散时间表的工具已成为一种非常有前途的方法，可以在许多情况下提供解决方案。高温岩浆系统为开发和校准这些工具提供了出色的天然实验室，因为监测火山的各种观察结果能够对结果进行交叉检查。随后，新开发和精制的工具可以应用于更广泛的地质和行星环境。该项目旨在将地质学家，理论家和建模者以及邻近物理和材料科学领域的领域地质学家，实验科学家，理论家和建模者汇集在一起​​，以促进这一发展。该研究单位提案第一阶段的某些主要目标是：测量在辉石和斜长石中缺失扩散参数，探索了由于扩散而校准的阶段，在高温下，在高温下，在高温下，在高温下，在高温下校准了阶段的范围，在高温下，探索了高温的范围，探索了高温的范围，探索了高温范围的范围，该范围的范围是在高温下的作用。就像在收敛板边缘岩浆设置（分别是阿曼和坎奇特卡）一样。这些将伴随着结合进步的用户友好代码的开发。该软件将免费分发给普通社区。未来的计划包括扩展到更复杂的岩浆（例如，爆炸性，火山口形成事件）和熔体岩石系统（Migmatites，地幔交代，矿石形成）。这些将需要研究更复杂的矿物质和多晶系统（例如闪石，云母，含水系统）。