Natural Resources

Open File NFLD/3171 - Neutron-Activation Analyses of Till Heavy-Mineral Concentrates from Six Locations in Newfoundland

S.D. Amor

St. John's, Newfoundland, July, 2012

Abstract

Instrumental Neutron Activation Analysis (INAA) has been carried out on heavy-mineral concentrates (HMC) extracted from till samples collected at 78 sites in the Bay de Verde Peninsula, and south of Red Indian Lake. The samples were collected from hand-dug pits, and after processing using a 'Goldhound' rotary panner, were subjected to heavy-liquid separation in bromoform (SG 2.89). Because of the paucity of HMC in many of the samples it has been necessary to composite some samples to accumulate sufficient material for the analysis, and for subsequent mineralogical examination.

The attached data file includes analyses of 97 composited and uncomposited samples for Sb, As, Ba, Br, Ce, Cs, Cr, Co, Eu, Au, Hf, Fe, La, Lu, Mo, Rb, Sm, Sc, Se, Na, Ta, Tb, Th, W, U, Yb, Zn and Zr. Some samples were also analyzed for Ca, Ir, Hg, Nd, Ni, Ag and Sr.

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