vil
CONTENTS—C ontinued
CHAPTER V

Pace
SERUC CUT Ale PEO LOR yemeeteyer caer ee ree oe a aes eee eet ree Ut 193
Generalistatementiceccak. {ohana pa. Sa ne I ee beans, Saye: 193
Order of development of the main structural features....................--- 193
Character and influence of the Rocky Mountain Trench.................... 194

Emplacement of the Sifton formation and older rocks in the Rocky Mountain
PESTON Chia soi st oec ease aise: «Sa eee es ENO EES Eee 195
Tomias Lake synclinorium and Pelly Creek thrust: the ‘Pelly Creek lineament’ 196
PTANSVETSC LAUNGS |. Fazax cee Raye RM ENS EE RUE hs So 197
Wongitudinal faulteieccca5 cisco eRe ee Poe eee ee 198

CHAPTER VI

ECONOMIC Reologyanscn Sethe ne ets VLR eT te RE AE A ee Re 199
Placerd epositsi ie sceces sulee eh ees hei osteode hs oe euetran a NT 199
Tod eid eposits! riteysy esses pea vd wee ee Beil Soir eA eee a a rae wane 199

Deposits in the Proterozoic and Lower Cambrian rocks, and in the late
Palseozoic limestonestistayac-ce veo ek Ce Ee 199
Deposits apparently related to the Omineca intrusions.................. 201
Deposits younger than the post-Paleocene faults....................... 203

CHAPTER VII

Description of properties and prospects............. 0... ccc eeeeeee cess eeeees 204
In genikAi rou pers seis athe, Sere sre sR: ata ne Su eae 204
HET PUSONE CLOUD sien carey NE TE oc PATE cauteete  ceaaecc Rohe geet sane 204
Onward group ye sscy crescent ce. crsca ses ccea Seas ss dg Mee sees ee os 208
BUIG Ene erOUD ee ie he ite ae i ie Ae ee 209
Swannell groupe eons. ct eet Ta eee ee a ie ee Bs cre 209
Oi hil fads des pamena ae snp es babs Oey Bee Be GOET Ie SEO kU ee eee 211
sRorphymyn Creeks workin Gs feats yi seas. tie kamen fone eiors os es Hou aucacue cacetissnepibors 211
Magnetite deposits near ‘Porphyry Creek’: Shell group...................-- 212
@roydontgroupy eee one cere fn, eee see A eye PR ary Wee fe 213
Granite Basin groupe ty eee tetas cone re ee ee eet es 217
Halquinniand ReduDyketgroupse, oops esac ose oh. ocean ssh 218
UpIters CLOUD ences cane ect ete ear eae p oa ee eae Eee cae 218
Polaris group........... Di eEeR SAREE chess ar toLETN Sprit ca Rerouscader ies Bie che ee es 221
V5 UGG) OES. {a OLY Op lets Ses CERN GOS Lia tes HR RGSS PEP EN Cree Ere mee SR Rs I rere 222
Sbtrangermeroup yc aot een e e e can EEE gee ee aE ec 222
Lead-copper showing near Tutizzi Lake................ 00.0000 cece eee 223
Chiefeihomasishowingascss Cee ne eee ee ee 223
Bilizabe Ghyerou p rergtcice ete rca reset Ona era ws aegis Serra crete 223
MatetloxcoppersSno wit eae: srysecio cn ie i Ee ey i Sees aleieee 224
LUCOSSTOUD espe sare carta ee tres trae Pee, neces egies a eee Tec ce ee aR ae oe Ue 224
AUJAVEWAYEY fea NOLD| O eieeeere pian es alee ett cer eres Rann AL eR tS ee ea cea Ree 224
WEES (a kOU SO) Secs buts oi Ge GG I OEE OS TGR ED Chace nr ne Trea RR 225
UU Va CLOUD ey ten pee ars ere cual ene eee CN eeee evn 226
Lead showing in Tenakihi Creek Valley.............. 0.00 ccc cece eee ee eeees 227
Beveleyserotp yeni eter sl ctere estes Tne epee nL ince ge mele eecus le eaavceage 228
IWieberserou pire acc case een rots o aoe en sic RARE RAE UIC Me cents 228

Table I. Modal compositions of intermediate and acidic rocks of the Hogan
batholith in Aiken Lake map-area.. SBOE te oe ee LES
Nay Ley ee crcpe ests cieecea Othe oo eet eRe re eet Ua itp nip re rR nase rae OT aN 241