Evolution of the North Caribou terrane in the northwest Superior Province of Canada: tectonic setting for gold mineralization

该项目是一项多学科研究，旨在了解位于桑德湾北部约500公里处的North Caribou地块bbbb3亿年演化过程中金矿化的时间和地质背景。北美地体是北美大陆最古老的地壳域之一，在加拿大地盾构造过程中，通过众多地体的吸积和碰撞，一直保持着核心地位。大约30亿年前，在浅水沉积物沉积在其边缘之前，该地区形成了一个稳定的陆地块。这些古老的沉积岩在随后的构造碰撞过程中变质变形，现在在Musselwhite矿中赋存金矿。我们将进行详细的基岩测绘，并对现场采集的样品进行地球化学分析，以解开这些事件，并确定导致金矿化的关键事件。

The proposed project is a multidisciplinary study to understand the timing and geologic setting of gold mineralization during the > 300 million year evolution of the North Caribou terrane, about 500 km north of Thunder Bay. The North Caribou terrane is one of the oldest crustal domains in the North American continent and remained as the nucleus during the assembly of the Canadian Shield through accretion and collision of numerous terranes. A stable land mass developed in the area prior to deposition of shallow water sediments on its margin ca. 3.0 billion years ago. These ancient sedimentary rocks were metamorphosed and deformed during subsequent tectonic collision processes, and now host gold in the Musselwhite mine. We will conduct detailed bedrock mapping and carry out geochemical analysis of samples collected in the field to unravel these events and identify the critical event that resulted in the gold mineralization.