vi
CONTENTS—C ontinued

CHAPTER IV—Concluded

General geology—Con.

Ultramafic and related rocks (Trembleur intrusions ?)—Con.
Structuralerelations eye EE OO
Hixtermalistructuralerelationsees. oaccaens renter oceans
Internal'structural'relations...-. << «sino eras ae eae
Originfandsmoderofuintrusione. ee. orci eee eee
Age and CONTE] ALON.) <10..25 2s corsyass souovsbets cescysecciehny kt bede aitgnls fon sed siedr ee ee EES
Pre-Jurassic acidic intrusive (?) rocks..............0. eee c eee e cece rete eees
Pakla groups ssc oP EE TE aay ae eae |S ee
Distribution esse ee ee Ea ne oe eve
a tthologyjeseecipsccns cas eee RE iene ee er Tae NE ee Cea
Field occurrences and megascopic description....................--
Petrographic:deseription™.. - accrue seis ee ee eee
Volcanic rocks: ..— Stissee sees Be OE ee
Sedimentary,-rocks 73. ..c,.s ete eae ee NE Cae os
Structural: relations 35a ycen ee er Se as

UN. <a er ery Ce On Pa SCRE renin ese Oc cae eer eer Sein 2 rece yeaa eR

Melanocratic, quartz-free rocks............. 0.00 cece cece eee eee eee
Distribution se sspscsaceaix cs ne so eR Soo ee ee
PithOlogyecriege vosceec arse Oe teres ea eh er ee ee

Constituent: minerals 3s-a0 a i ee
Composition of various rock types......................000-.
Description of individual bodies.....................0..0.000 eee
Croydon @reekibodyi25.22 = : visit es) eee
Kiliyule@reek bodies 22: 2350. sc Gs ce ee
Albraham: Creek body. caccs aim ciny caine ac ee
Body west of Mount Hlsie.............000.00..00 520.0 e ee eee
abUtiZ zi AnakesbOd vias ssnrc cq cece ee as
LOT ales e a eae oes eee een Ore oS Goo Acar Secs | eee Beek

Leucocratic, mainly quartz-bearing rocks.....................0.00000..
Disthibutionssnascte ete ake ee Ee Re A SR i
TNIth Ol Siyppice nee ews nea he gapearsce td ee VN orcas sc.

Petrographic description.............. So ea) ee
Structuralirelations,.2 52s Feed esos Bees ee aes

Age
Uslika formation

Inthologyan-eomerecsar ee oe
Structural relations