Plate reconstruction context for variations in geodynamic, magmatic and mineralisation processes

随着时间的推移，通过“超大陆”旋回，大陆地壳的反复合并和分裂影响和/或控制了地球进化的大多数方面。不同矿床类型、火成岩岩石学组合和沉积盆地的幕式发生受到各种地球动力学控制的影响，所有这些控制似乎都是相互关联的，但我们对过程、空间和时间变化的理解是有限的，特别是当我们回顾过去时。我们现代生活方式的生活质量依赖于自然资源的持续可用性，这就需要发现更多的矿藏，包括以前没有勘探过的地壳域（“绿地”地形）。因此，需要更好地描述地球动力学背景、矿化作用和沉积沉积环境的相互作用。****我和我的学生将利用目前在各种国际数据库和GIS数据集中可用的主要数据汇编来解决重建目前最不受限制的时间间隔，并评估处理数据的新方法，以便改进板块重建。我研究的最终目标是建立一个从现在到晚太古代的重建模型。未来五年提出的具体组成部分是：****目标1)通过将新开发的测量重建质量的标准应用于选定的现有钢板模型来评估它们。2)研究火成岩岩石地球化学的地理、时间和地球动力学背景，以更好地描述变化的来源和过程，这应该有助于为板块重建模型提供信息。****目的3)通过对几条古生代主要造山带的展开，建立中亚造山带部分地区的改进板块重建模型。目前的板块模型过于简化了该区域板块的几何形状，这限制了我们重建早期时间间隔的能力。4)建立改进的中-新元古代板块重建模型，将现有的古元古代Nuna模型与显生宙地球演化模型联系起来。****在这些主题范围内整理的数据将通过现有的国际数据库（如StratDB和DateView）进行汇编，供今后的研究使用，这两个数据库以前都是我自己设计和开发的。成功完成将需要与几位具有区域或特定学科专业知识的国际研究人员进行广泛合作。已经建立了一个协作网络来协助这项工作，并将在必要时进行扩展，特别是在最近批准的IGCP 648项目的背景下，我是该项目的共同负责人

Repeated amalgamation and splitting apart of continental crust through time via the 'supercontinent' cycle have influenced and/or controlled most aspects of earth's evolution. Episodic occurrences of different mineral deposit types, igneous petrological associations and sediment basins are influenced by a variety of geodynamic controls, all of which appear to be interrelated but our understanding of the processes, spatial and temporal variations is limited, particularly as we move back in time. Quality of life in our modern lifestyles is dependent on the continued availability of natural resources which requires the discovery of additional mineral deposits, including ones in crustal domains not previously explored ('greenfields' terrains). A better representation of the interplay of geodynamic setting, mineralisation and sedimentary depositional environment is thus required.****I and my students will utilise major compilations of data now available in various international databases and GIS data sets to address time intervals for which reconstructions are currently least well constrained and to assess new ways to work with data so as to refine plate reconstructions. An ultimate objective for my research is the development of a reconstruction model from present day to the Late Archaean. Specific components proposed for the next five years are:****OBJECTIVE 1) Assess newly developed criteria for measurement of reconstruction quality by applying them to selected existing plate models.****OBJECTIVE 2) Investigate the geographic, temporal and geodynamic setting of igneous rock lithogeochemistry to better delineate changing sources and processes which ought to help inform plate reconstruction models.****OBJECTIVE 3) Develop an improved plate reconstruction model for parts of the Central Asian Orogenic Belt by unfolding' several major Palaeozoic oroclines. Current plate models over-simplify the geometry of plates from this region which limits our ability to reconstruct earlier time intervals.****OBJECTIVE 4) Develop an improved plate reconstruction model for Meso- to Neo-Proterozoic time to link an existing model for Palaeoproterozoic Nuna' with models for Phanerozoic earth evolution.****Data collated within the context of these topics will be compiled and made available for future research via existing international databases such as StratDB and DateView, both previously designed and developed by myself. Successful completion will require extensive collaboration with several international researchers with regional or discipline-specific expertise. A network of collaborators has been developed to assist with this and will be extended where necessary, particularly within the context of the recently approved IGCP 648 project of which I am a co-leader.**