Mikroskopsystem zur Spaltspuren-Analytik

用于裂变痕量分析的显微镜系统

• 批准号: 449546326
• 金额: --
• 依托单位: Universität Bremen
• 依托单位国家: 德国
• 项目类别: Major Research Instrumentation
• 财政年份: 2020
• 资助国家: 德国
• 起止时间: 2019-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/449546326?language=en
• 关键词: Mikroskopsystem; zur; Spaltspuren; Analytik

Fission track analysis is widely used in Geosciences and is applied, amongst, others, for quantifying erosion and exhumation of the upper crust, bracketing timing of fault movements, dating large-scale tectonic processes, determining sediments provenance in source-to-sink studies, and constraining thermal evolutions of sedimentary basins, often in association with hydrocarbon exploration. The section "Geodynamics of Polar Regions", University of Bremen, uses fission track analysis as its core expertise, and has successfully run a fission track laboratory for the last decades. The current equipment of the laboratory consists of two stage systems dating from the 1990´s. We aim to replace them by two state-of-the-art stage systems allowing for (semi-)automated fission track analysis. (Semi-)automation and digital image analysis will enable us to (i) facilitate and speed up data generation, (ii) improve counting statistics, both in terms of number of dated grains and number of measured lengths, (iii) provide digital records of analysed grains, which in turn enables us to change from the External Detector Method to the micro-destructive Laser-Ablation Fission Track Analysis (iv) improve training opportunities for PhD students and other early-stage researchers, (v) supports documentation, archiving, and exchange of basic and raw data used for thermal history reconstructions.

裂变径迹分析广泛用于地球科学，除其他外，还用于量化上地壳的侵蚀和折返，断层运动的时间划分，大规模构造过程的年代测定，在源-汇研究中确定沉积物的来源，以及限制沉积盆地的热演化，通常与油气勘探有关。不莱梅大学的“极地地球动力学”部分将裂变径迹分析作为其核心专长，并在过去几十年中成功地运行了一个裂变径迹实验室。实验室目前的设备包括两个阶段的系统，可追溯到20世纪90年代。我们的目标是用两个最先进的阶段系统取代它们，允许（半）自动裂变径迹分析。（半）自动化和数字图像分析将使我们能够（i）促进和加快数据生成，（ii）改善计数统计，包括日期谷物数量和测量长度数量，（iii）提供分析谷物的数字记录，这反过来又使我们能够从外部探测器方法转变为微观破坏性激光烧蚀裂变径迹分析（iv）改善博士生和其他早期研究人员的培训机会，（v）支持用于热历史重建的基本和原始数据的记录，存档和交换。