Coordination Funds

协调基金

• 批准号: 146699563
• 负责人: Professor Dr. Mario Trieloff
• 金额: --
• 依托单位: Institut für Geologie
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/146699563?language=en
• 关键词: Coordination; Funds

Our solar system formed 4.6 Ga ago from a collapsing cloud of interstellar gas and dust. Questions about the very origin of our Earth and planets - and the prospect of detecting Earth-like, potentially life-harbouring planets - are of tremendous scientific and public interest. The most important and critical step in building the Earth and other planets was probably the coalescence of planetesimals out of dust in the first few million years of our solar system’s existence. The mechanisms and rates involved in this step can be revealed by analysing material left over from this growth process and accessible as meteorites or cometary and interstellar dust samples returned by the STARDUST mission. The SPP aims to initiate and provide the means for comprehensive and interdisciplinary studies on key aspects of planetesimal formation in the early solar system. The SPP is particularly timely due to the new research opportunities provided by the availability of extraterrestrial materials and new analytical technology. A key future technique to study elemental and isotopic compositions on a micrometer level with high precision is SIMS (Secondary Ion Mass Spectrometry, “ion microprobe”). In the 2nd funding period, an ion microprobe CAMECA 1280HR was granted and will be installed in the 3rd funding period. As a national facility, this instrument is going to serve the whole SPP, and will provide high quality data on long terms for both the cosmochemistry and geoscience communities. In the 3rd funding period, further central coordination measures shall establish the new dynamics by the special priority programme.

我们的太阳系形成于4.6 Ga前，由星际气体和尘埃的坍塌云组成。关于地球和行星的起源问题--以及探测类地行星的前景--具有巨大的科学和公共利益。在形成地球和其他行星的过程中，最重要和关键的一步可能是在太阳系存在的最初几百万年里，由尘埃中产生的微行星的聚合。这一步骤所涉及的机制和速率可以通过分析这一生长过程中遗留下来的物质来揭示，这些物质可以作为陨石或彗星和星际尘埃样品从星尘使命返回。SPP的目的是启动和提供全面的和跨学科的研究在早期太阳系的星子形成的关键方面的手段。SPP是特别及时的，由于新的研究机会提供了外星材料和新的分析技术。 未来在微米级上以高精度研究元素和同位素组成的关键技术是西姆斯（二次离子质谱法，“离子微探针”）。在第二个资助期，获得了一个离子微探针CAMECA 1280 HR，并将在第三个资助期安装。作为一个国家设施，该仪器将为整个SPP服务，并将为宇宙化学和地球科学界提供长期的高质量数据。在第三个供资期，进一步的中央协调措施将通过特别优先方案建立新的动力。