Copper/Cobalt strata-bound systems; A Basin Analysis approach to the tectonostratigraphic evolution of the Central African Katangan basin of Zambia an

负责大陆(冈瓦那)地壳生长的中非新元古代沉积盆地的地球动力学、构造和地层过程是什么？它们如何影响中非铜钴省铜和钴的动员、运输、聚集和沉淀？非洲和巴西的西冈瓦那地区的地球动力学和构造地层发展涉及新元古代盆地地层和结构中记录的一系列地体的发育和沉积。理解这一超大陆增长过程的关键是这些盆地的下沉和变形历史，作为构成冈瓦那的碰撞前历史和后来的吸积过程的指示器。这些盆地记录了新元古代冰期，并在中部非洲的加丹干盆地，成为世界上最大的层控铜/钴矿床的储藏地。该项目将采用第一原则和综合方法来分析新元古代加丹干盆地，目的是确定盆地形成和随后的变形过程，导致冈瓦纳的生长。主要铜矿床的成因是这一过程的一个组成部分，对盆地的热、流体和地球化学演化产生了重大制约。在著名的岩石地层格架的基础上，将建立区域层序地层模型，绘制古地理图，并利用构造恢复来建立盆地的演化模型。将创建单独的下沉剖面并将其剥离，以建立下沉历史。这将借助热年代学数据进行反向剥离，以了解下沉驱动机制并量化随时间的热流。将其与盆地的岩浆和变质历史结合起来，将对流体流动的时间和机制施加限制。在此动力学基础上，建立了新元古代盆地演化变形和大规模铜矿成矿模式。这种动态盆地分析对于加丹干盆地和中非新元古代盆地的形成和变形问题来说都是新的。由于年代学控制不佳，这将是具有挑战性的，但无疑将为新元古代地壳生长、盆地形成、构造和成矿过程提供新的视角。支撑地球科学的工作将主要是基于岩心的地层分析和矿田区段的建设和恢复。除了这些基本的地质来源外，还需要对锆石U/Pb来源的研究提供资金，还需要进行锆石、磷灰石和流体包裹体测年以及古生物学研究，以支持盆地的动态沉降分析。

What are the geodynamic, tectonic and stratigraphic processes of Central African Neoproterozoic sedimentary basins responsible for continental (Gondwana) crustal growth? And how did they influence the mobilisation, transportation, concentration and precipitation of copper and cobalt in the Central African Copper/Cobalt province?The geodynamic and tectono-stratigraphic development of Western Gondwana, in both Africa and Brazil, involves the development and accretion of a series of terranes recorded in the stratigraphy and structure of Neoproterozoic basins. Key to understanding this process of Supercontinent growth is the subsidence and deformational history of these basins as indicators of the precollisional history and later accretionary processes that constructed Gondwana. These same basins record the Neoproterozoic glaciogenic periods and, in the case of the Katangan basin of Central Africa, became the depository of the world's largest strata-bound copper/cobalt deposits.This project will take a first principle and integrated approach to the analysis of the Neoproterozoic Katangan basin, with the intent of defining the processes of basin formation and subsequent deformation resulting in the growth of Gondwana. The genesis of major copper deposits is an integral part of this process, adding significant constraints on the thermal, fluid and geochemical evolution of the basin. Building on the well-known lithostratigraphic framework, a regional sequence stratigraphic model will be built, paleogeography mapped and structural restorations used to build an evolutionary model of the basin. Individual subsidence profiles will be created and back-stripped to establish a subsidence history. This will be back-stripped with the help of thermochronological data to understand the subsidence driving mechanism and quantify heat flow through time. Integrating this with the magmatic and metamorphic history of the basin will place constraints on the timing and mechanism of fluid flow. From this dynamic base a model of Neoproterozoic basin evolution and deformation and large scale copper mineralisation will be developed. Such a dynamic basin analysis will be new to the Katangan basin and the issue of Neoproterozoic basin formation and deformation in Central Africa generally. It will be challenging due to poor chronological control, but will undoubtedly provide new perspectives to the process of Neoproterozoic crustal growth, basin formation, tectonics and metallogenesis. The underpinning geoscience work will be largely core based stratigraphic analysis and mine and field section construction and restoration. In addition to these basic geological sources, funding will be required for zircon U/Pb provenance studies, zircon, apatite and fluid inclusion thermochronometry and palaeontology will be required to support the dynamic basin subsidence analysis.