24 INVES TIGA TION INT O HIGH GRADE S OURCE 2 An i mpor t ant aspect of this st udy of t he Marat hon deposi t i s t hat condui t sty l e envi ronm ents are capabl e of producin g such ex t rem e PG E enr i ched ore bodies simil ar t o that of Noril sk di sseminated ores an d l at e st age reef deposi t s i n t he shal l ow part s of l arge l ay ered i nt rusions e g Skaergaard Bushve l d T he f orm at i on of t hese enr i ched ore s l i kel y res ult ed fr om ear l y sul fi de segrega ti on i n a deep reserv oir D E Ames et al O re Geolo gy R evi ew s 2017 Con cl us io n