w w w M acD on al dM i n e s co m 16 Scadding Dep osit Modi fied IOC G Deposit 16 Iro n o x id e co p p er g o ld d epo s its IOC G a r e one o f the depos it ty pe fo rm ed in cont in en ta l ir o n and a lk a li a lt era tio n s y s t ems IOC G de po s its a r e de f in ed as Ec o no mi c Cu wi t h or wi t h o ut Au a s w el l a s po t en tia ll y o ther econo mic met a ls tha t in cl udes co b a lt ni ck el s il v er ra r e e a r th el ements a nd ura ni um S t r uct ur all y co nt r o ll ed a nd f o rm ed in l a r ge h y dr o therm a l a lt era tio n s y s t ems mine ra li za tio n zo ne s co nta in s 15 low Ti iro n o x id es w ith s econda r y ir o n sil ic a t es Th e Scad din g Depo s it s har es k ey a tt ribut es w ith s y s t ems hos ting IOC G de po s its Zo ne s o f mine ra li za tio n ca n co nta in o v er 15 ir o n but ir o n i s hos t ed in sili ca t es w ith v a ria ble ir o n o xides a nd ir o n sul f ide s Gold i s the ma in co mm o dity En richmen ts in s il v er co b a lt co pp er ni ck el REE a nd ura ni um S tr uctura ll y co ntr o ll ed a nd fo rm ed in a n IO A A sy s t em Th e S cad d ing De p o s it was cl as s ifie d as a modifie d I OC G d epo s it Sch a ndl a nd Gor t o n 2007 Th e IOC G pote ntial o f the W a nap it ei a r ea w a s r ecognized in 2007 by the G eolo gical Su r v ey o f C a nada