Stable Isotopic Studies of the Voisey's Bay Copper-Nickel-Cobalt Deposit, Labrador, Canada: The Role of Externally-Derived Sulfur in Ore Genesis

这笔赠款支持Ed Ripley和印第安纳大学的一名研究生对与加拿大拉布拉多Voisey‘s Bay块状硫化物矿床相关的岩石进行稳定同位素、痕量元素和成分分析。Voisey‘s Bay矿床是当今世界上经济上可行的最大镍矿床之一。国际和平研究所以前与Tony Naldrett(大学)合作进行的初步研究。多伦多)表示，尽管硫化物饱和，但该矿床的矿化似乎是由围岩对岩浆侵入的污染造成的。尽管如此，还没有找到确凿的证据。这项研究将在以往研究的基础上，增加多个全岩和矿物的高分辨率稳定同位素分析，从低硫围岩和矿床的未矿化和矿化部分分离样品，以阐明导致矿床内硫化物饱和的硫源。

0086538RipleyThis grant provides support to Ed Ripley and a graduate student at the University of Indiana to conduct stable isotopic, trace elemental and compositional analysis of rocks associated with the Voisey's Bay massive sulfide deposit in Labrador, Canada. The Voisey's Bay deposit is one of the largest economically viable nickel deposits in the world today. Previous preliminary studies by the PI in collaboration with Tony Naldrett (Univ. Toronto) have indicated that mineralization of this deposit, though sulfide saturation, appears to have been caused by contamination of the magmatic intrusion by country rocks. Nonetheless, a smoking gun has not yet been found. This study would expand on previous research by adding high resolution stable isotopic analyses of sulfur, oxygen and carbon from multiple whole rock and mineral separate samples taken from the low-sulfur county rock and unmineralized and mineralized portions of the deposit to elucidate the source of sulfur responsible for sulfide saturation within the deposit.