Metallogenetic, structural, metamorphic, stratigraphic and geochronological investigations on gold mineralization styles at the Great Bear deposit, Red Lake greenstone belt, ON

拟议的研究将集中在新发现的大熊矿床上，该矿床归金罗斯黄金公司所有，位于安大略省西北部红湖绿岩带红湖采矿营地以南约25公里处。大熊金矿床在东向地壳尺度大断裂——中侏罗断裂带的正附近，以3种不同的成矿风格赋存金：(1)中侏罗断裂带下盘中侏罗断裂带，(2)中侏罗断裂带，(3)中侏罗断裂带；后两者位于中低断层上盘。金成矿主要赋存于中太古代和新太古代变质变形的沉积岩和火成岩中。为了确定矿床的成因，研究人员采用了多方面的方法，将实地考察与尖端的微纳米分析技术相结合，重点研究了矿床的矿物学、地球化学、构造、变质组合、地层学和地质年代学。这些研究目标将由四名高素质人员（1PDF, 1PhD, 2MScs）在总共四年的时间内完成。研究结果将提高我们对大熊金矿床和红湖绿岩带金矿化的认识，以及LP断裂在金矿化和再活化中的作用，为红湖矿营的金矿化提供对比资料，重新定义现有的构造控制型金矿化成矿模式，有助于该区的找矿工作，并有可能找到新的金矿。这一研究结果也将推动我们在微观和纳米尺度上理解变形对金再活化的作用，这是地球科学中一个快速发展的领域。结果将对该地区正在进行的勘探产生影响，因此也有助于加拿大北部社区的经济增长。

The proposed research will focus on the newly discovered Great Bear deposit, owned by Kinross Gold Corp. and is located ca 25km south of the Red Lake mining camp in the Red Lake greenstone belt, northwest Ontario. The Great Bear deposit hosts gold in three different mineralization styles in the direct vicinity of a SE-striking crustal-scale major break, the LP fault zone: (1) LP fault in the footwall of the fault zone, (2) Limb zone, and (3) Hinge zone; the latter two are in the hanging wall of the LP fault. Gold mineralization is hosted in metamorphosed and deformed sedimentary and igneous rocks of either Meso-Archean or Neo-Archean age in all three mineralization styles. To constrain the genesis of the deposit, a multi-faceted approach is used combining fieldwork with cutting edge micro- and nano-analytical techniques and focusing on the mineralogy, geochemistry, structure, metamorphic assemblage, stratigraphy and geochronology of the deposit. These research objectives will be addressed by four highly qualified personnel (1PDF, 1PhD, 2MScs) over a total of 4 years. Results from this research will improve our knowledge of gold mineralization at the Great Bear deposit and the Red Lake greenstone belt, the role of the LP fault regarding gold mineralization and remobilization, provide comparison to gold mineralization in the Red Lake mining camp, re-define current deposit models applied to structurally-controlled gold mineralization, aid in exploration, and potentially lead to new gold discoveries in the area. Results will also advance our understanding of the role of deformation on gold remobilization on the micro- and nano-scale, a fast-emerging field in the geosciences. Results will have impact on on-going exploration in the area and hence also contribute to the economic growth of northern communities in Canada's North.