Georges Beaudoin

TL;DR: In this paper, electron microprobe analyses of minor and trace elements in magnetite and hematite from a range of mineral deposit types (IOCG), Kiruna apatite, magnetite, chromite, and spinel series, and ulvospinel as a result of divalent, trivalent, and tetravalent cation substitutions) are used to construct discriminant diagrams that separate different styles of mineralization.

TL;DR: In this article, the distribution of 25 trace elements in magnetite (Mg, Al, Si, P, Ca, Sc, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Ga, Ge, Y, Zr, Nb, Mo, Sn, Hf, Ta, W, and Pb), using laser ablation ICP-MS and electron microprobe, from a variety of magmatic and hydrothermal ore-forming environments and compared them with data from the literature.

TL;DR: The mid-Miocene Gangdese orogenic belt in southern Tibet contains porphyry Cu deposits that developed after the Indian-Asian continental collision in the early Cenozoic as mentioned in this paper.

TL;DR: In this paper, the trace element concentrations of Fe-oxides in massive sulfides that form Ni-Cu-PGE deposits at the base of the Sudbury Igneous Complex in Canada were determined.

TL;DR: In this paper, the sulfur and oxygen isotope compositions of altered peridotites and gabbros from near the 15°20′N Fracture Zone on the Mid-Atlantic Ridge were analyzed to investigate hydrothermal alteration processes and test for a subsurface biosphere in oceanic basement.