Area, region | Rock | ΣPGE, ppm | Reference |
Skiros, Greece Milia, Pindos, Greece Rhodope Massif, Bulgaria Mawat ophiolite, Iraq Oman ophiolite Kempirsai Massif, Urals Kempirsai Massif, Urals Polar Urals Polar Urals Eastern Desert, Egypt Turkey ophiolites Eskişehir, Turkey Loma Caribe, Dominican Republic West Raglan, Cape Smith Belt, Canada Avalon terrane, Canada Thetford Mines ophiolite, Canada Advocate ophiolite, Newfoundland, Canada Bird River Sill, Canada Dovirensky layered complex, Siberia Blue Ridge Province, North Carolina Avan Hills, Alaska (Pt + Pd) Rabbit Creek, Alaska (Pt + Pd) Quartz Creek, Alaska (Pt only) Emerick prospect, Alaska (Pt + Pd) Caribou Mountain, Alaska Salt Chuck Mine, Alaska (Pd only) Red Mountain, Alaska (Pt only) | chromite chromite chromitite chromitites chromitite chromitite chromite sulfide-chromite sulfide-bearing dunite envelopes Cr-PGE chromitites chromitites - - chromitite (Only Pt) - chrome property (Pd only) chromite (Pt+Pd+Rh) - - serpentinite serpentinite chromite (Pt only) - - | 2.3 ≤1.059 ≤1.6 ≤1.094 ≤1.5 ≤1.0 ≤1.0 - 2.0 0.7 - 0.8 1.0 - 1.5 up to 0.738 ≤1.305 ≤0.533 1.82 - 2.04 2.54 ≤2.4 ≤2.0 ≤1.028 ≤0.7 ≤1.4 ≤0.746 ≤1.029 ≤2.298 ≤1.2 ≤1.966 ≤1.337 1.96 2.27 | [35] [286] [287] [145] [274] [138] [288] [289] [289] [274] [290] [291] [292] [293] [294] [295] [137] [231] [296] [297] [285] [285] [285] [285] [285] [298] [298] |