Major-, minor-, and trace-element geochemistry of sulphide indicator minerals from surficial sediments, southwestern Northwest Territories / R.D. King, S.J. Piercey, R.C. Paulen, and J.A. Petrus. : M183-2/8547E-PDF

"Till sample surveys were conducted near the headwaters of the Mackenzie River in 2007, 2008, and 2012, as part of the Northwest Territories Geological Survey's Protected Area Strategy surveys. Numerous sphalerite, galena, chalcopyrite, and arsenopyrite grains were recovered from many of the till samples. No proximal, up-ice mineralized bedrock source for these sulphide grains has been found to date, with the nearest known outcropping bedrock source of sphalerite and galena being the Qito Pb-Zn showing (~274 km to the northeast) and the Pine Point Mississippi Valley-type (MVT) Pb-Zn deposit (~400 km to the east). The sulphide indicator mineral grains were analysed via electron probe micro analysis and laser ablation-inductively coupled plasma-mass spectrometry to determine their major, minor and trace elemental composition to elucidate their potential bedrock source and to characterize the potential host mineralization type"--Abstract, page 1.

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