Microscopic Observation of Thin Section · Appendix V-7 Result of Microscopic Observation of Thin Section Outcrop No. Sample Name Map Sheet Rock name Localty Formation Texture Grains,

App

endi

x V

-7 R

esul

t of M

icro

scop

ic O

bser

vatio

n of

Thi

n Se

ctio

n

　　

　　

〔O

ther

sym

bols〕

( )

: pse

udom

orph

Qz

: qua

rtz

Kf :

alk

ali f

elds

par

Pl :

plag

iocl

ase

Ab

: alb

iteM

us :

mus

covi

te B

i : b

iotit

e H

b : h

ornb

lend

eCp

x : c

linop

yrox

ene

Trm

: to

urm

alin

e Z

r : z

irco

n A

p : a

patit

eG

a : g

arne

t M

on :

mon

azite

Op

: opa

que

min

eral

Sph

: sp

hene

GR

: gra

nitic

rock

BS

: bas

alt

QSH

: qu

artz

schi

st

Ser :

seri

cite

Ge

: goe

thite

Oth

: ot

her m

iner

als

Ti :

titan

ite (f

ine

aggr

egat

e of

sphe

ne-li

ke m

iner

als)

Ky

: kya

nite

Ep :

epid

ote

Chl

: ch

lori

te A

c : a

ctin

olite

Il :

illit

e P

y : p

yrite

　　

　　

〔M

iner

als〕

SI :

silic

ified

rock

QR

: qua

rtz

rock

QG

: qu

artz

-goe

thite

rock

Sum

mar

y of O

bse

rvat

ionｓ u

nder

pola

rizi

ng

mic

rosc

ope

Lege

nd

　　

　　

〔Ro

cks〕

167

App

endi

x V

-7 R

esul

t of M

icro

scop

ic O

bser

vatio

n of

Thi

n Se

ctio

n

Outc

rop

No.

Sam

ple

Nam

eM

apSheet

Rock

nam

eLocal

tyForm

atio

nText

ure

Gra

ins,

prim

ary

min

era

ls a

nd

phenocry

stM

atrix,

seconda

ry m

inera

ls o

r gr

oundm

ass

A090202

RA

003T

1130N

EM

edi

um

-gr

ained

sands

tone

Luba

lesh

i R

.Kat

anga

Gro

up

Sedi

menta

ry t

ext

ure

with b

edd

ing

by g

radi

ng

(medi

um

to fin

e-gr

ained)

Qz(

40)･

Pl(20)･

Kf(18)>

Op(

2)･

Mus>

BS･G

R･

QSH

･Hb･

Sph

･Ky･

Ep･

Zr

Mat

rix

is m

inor

amount(

11%). M

ixtu

res

of

Il･Q

z･C

hl,a

nd

Ge c

em

ent.

LI0

7100301

RA

005T

1030N

EG

ranitic

pegm

atite

Tak

eB

asem

ent

Com

plex

Holo

cry

stal

line e

quig

ranula

r (pa

rtly

recry

stal

lized)

Qz(

25)･

Kf(25)･

Mus(

19)>

Pl(13)

Seconda

ry m

inera

ls：Q

z(16)･

Ser(

2)

Pg7

0R

A006T

1030SE

Gra

nite

Tak

eIn

trusi

veH

olo

cry

stal

line e

quig

ranula

rKf(42)>

Qz(

31)>

Pl(19)>

Bi(5)>

Mus(

1)

Seconda

ry m

inera

ls(2

%)：

Chl･

Ser･

Ep

Lh7100210

RA

007T

1030N

ED

ole

rite

(A

lkal

i do

lerite

)Tak

eIn

trusi

veO

phitic

Pl(60)>

Cpx

(17)>

Op(

3)

Seconda

ry m

inera

ls：Ser(

9)>

Chl(7)>

Ac(3

)･Q

z(1)･

Ti

Lh7090721

RA

008T

1030N

EV

ery

coar

se-gr

ained

sands

tone (ar

kosi

c w

acke

)N

ear

Kan

chib

iaKat

anga

Gro

up

Sedi

menta

ry t

ext

ure

with w

eak

bedd

ing

by m

inera

l al

ignm

ent.

Sort

ing

is p

oor

and

by r

oundn

ess

,G

rain

s ar

e s

uba

ngu

lar

tosu

brounde

d.

Qz(

33)>

Kf(

25)>

Pl(6)･

SI(6)･

QSH

(5)>

QR

(3)･

Oth

(4)

Mat

rix：

Mai

nly

mix

ture

of

Chl,I

l an

d fine Q

z,an

d w

ith t

he p

rese

nce o

f C

b(cal

cite) cem

ent.

N072301

RB

001T

1130SE

Very

fin

e-gr

ained

sands

tone

(wac

ke)

Kan

chib

ia R

.Kat

anga

Gro

up

Sedi

menta

ry t

ext

ure

with b

edd

ing

by m

inera

l al

ignm

ent.

Qz(

16)>

Pl(5)>

Mus(

3)･

Op(

3)･

Chl(3)>

Oth

(3)･

Kf(2)>

Ep

Mat

rix

occupi

es

65%. It is

com

pose

d of Il(

32%),

Chl(8%) an

d a

com

plex

mix

ture

(25%).

N081101

RB

002T

1130SE

Mic

aceous

siltst

one (

～ve

ryfine-gr

ained

sands

tone)

Luitik

ila R

.Kat

anga

Gro

up

Sedi

menta

ry t

ext

ure

with b

edd

ing

by m

inera

l al

ignm

ent.

Mus(

14)>

Qz(

13)>

Pl(6)･

Kf(

6)>

Op(

2)>

Oth

Mat

rix

is 5

9% c

om

pose

d of

Il, G

e a

nd

oth

ers

.

N081203

RB

004T

1130SE

Fin

e-gr

ained

sands

tone

(wac

ke)

Luitik

ila R

.Kat

anga

Gro

up

Sedi

menta

ry t

ext

ure

with b

edd

ing

by m

inera

l orienta

tion a

nd

grad

ing.

Silt

stone o

f 0.2

to 0

.3m

m t

hic

k is

inte

rleav

ed

with t

he s

ands

tone.

Qz(

16)>

QG

(11)･

Pl(10)>

Mus(

8)>

Kf(6)>

Op(

2)>

Oth

Mat

rix(

48%) is

com

pose

d of Il,

Ge a

nd

oth

ers

.

N081306

RB

007T

1130SE

Silt

stone (～

very

fin

e-

grai

ned

sands

tone)

Local

ity

:Kan

chib

ia R

.Kat

anga

Gro

up

Sedi

menta

ry t

ext

ure

with b

edd

ing

by m

inera

l orienta

tion.

Qz(

19)>

Pl(10)>

Mus(

6)>

Kf(

4)>

Op(

2)>

Ep･

Oth

Mat

rix

is 5

8% c

om

pose

d of Il,

Ge a

nd

oth

ers

.

N081308

RB

008T

1130SE

Fin

e-gr

ained

sands

tone

(wac

ke)

Tak

eSedi

menta

ry t

ext

ure

with b

edd

ing

by m

inera

l orienta

tion.

Qz(

39)>

Pl(17)･

Kf(

4)>

>M

us(

2)･

Op(

2)

Mat

rix

occupi

es

32%, an

d it is

com

pose

d of

Il(9%), C

b(9%), s

econda

ry Q

z(8%), C

hl(4%) an

doth

ers

.

N091301

RB

011T

1030N

EO

rthoqu

artz

ite (qu

artz

ric

hm

edi

um

-gr

ained

sands

tone)

K-L r

oad

Mpo

roko

so G

roup

Sedi

menta

ry t

ext

ure

with w

eak

grad

ed

bedd

ing.

Qz(

96)>

>Pl(1)>

>M

us･

Op･

Zr

Mat

rix

is m

inor

amount

(3%), a

nd

most

lycom

pose

d of m

ixtu

res

of Il,

Chl an

d G

e. B

ut

the a

mount

of origi

nal

mat

rix

was

pro

rabl

ym

uch lar

ger, b

ecau

se t

he s

econda

ry q

uar

tzhas

gro

wn o

ver

origi

nal

quar

tz g

rain

s.

N091311

RB

012T

1030N

EC

oar

se-gr

ained

sands

tone

(ark

osi

c w

acke

)Luku

paSedi

menta

ry t

ext

ure

s w

ith g

rain

orienta

tion a

nd

with b

ad s

ort

ing.

Qz(

39)>

Pl(15)>

Kf(11)>

SI(4)>

GR

(2)･

Oth

(2)･

QSH

(1)

Mat

rix

is r

ich (26%) an

d com

pose

d of Ser, C

hl,

fine Q

z an

d oth

ers

.

N091505

RB

015T

1030N

EO

rthoqu

artz

ite (qu

artz

-rich

medi

um

-gr

ained

sands

tone)

Kas

ama

Form

atio

n

Sedi

menta

ry t

ext

ure

with w

eak

orienta

tion o

f qu

artz

gra

ins.

Seconda

ry fin

e-gr

ained

quar

tz fill

sth

e n

etw

ork

of fr

actu

res.

Qz(

92)>

>O

p(1)>

(Pl)･H

b･M

us･

Zr

Vein

fill

ed：

Qz(

4)

Mat

rix

is m

inor

amount

(3%) an

d com

pose

d of

mai

nly

Op

and

min

or

amount

of C

hl.

But

the

amount

of origi

nal

mat

rix

was

bro

babl

y m

uch

larg

er, b

ecau

se t

he s

econda

ry Q

z gr

ow

s on

origi

nal

Qz

grai

ns.

( )：m

oda

l %

Tab

le

Sum

mar

y of

Obs

erv

atio

ns

unde

r po

larizi

ng

mic

rosc

ope

(1)

168

App

endi

x V

-7 R

esul

t of M

icro

scop

ic O

bser

vatio

n of

Thi

n Se

ctio

n

Outc

rop

No.

Sam

ple

Nam

eM

apSheet

Rock

nam

eLocal

tyForm

atio

nText

ure

Gra

ins,

prim

ary

min

era

ls a

nd

phenocry

stM

atrix,

seconda

ry m

inera

ls o

r gr

oundm

ass

N091602

RB

016T

1030N

ETonal

ite (sh

ear

ed

and

recry

stal

lized)

Bas

em

ent

Com

plex

Holo

cry

stal

line e

quig

ranula

r w

ith

feat

ure

s of sh

ear

ing

and

recry

stal

lizat

ion.

Pl(19)>

Bi(16)>

Qz(

5)>

Kf(2)

Seconda

ry m

inera

ls：

Qz(

25)>

Chl(14)>

Ser(

10)>

Ep(

5)>

Ab(

2)>

Ga(

1)･

Mon･O

th(1

)

N091603

RB

017T

1030N

EP

sam

mitic

gneis

sB

asem

ent

Com

plex

Gneis

sose

Qz(

36)>

Bi (2

4)>

Pl(15)>

Mus(

9)･

Kf(

8)>

Op(

1)>

Hb･

Trm

Seconda

ry m

inera

ls：C

hl(5)>

Ser(

2)

N091607

RB

019T

1030N

E

Fin

e-gr

ained

sands

tone

(ark

osi

c a

renite w

ith

recry

stal

lizat

ion =

sem

ish

ist)

Bas

em

ent

Com

plex

Sedi

menta

ry t

ext

ure

with

orienta

tion o

f gr

ains

and

with

recry

stal

lizat

ion feat

ure

s.

Qz(

53)>

Pl(26)>

Kf(

7)>

Bi(5)>

Op(

2)･

Mus(

2)C

hl(2)

Mat

rix

is m

inor

amount

(5%) an

d re

cry

stal

lized.

It is

com

pose

d of B

i, M

us

and

Chl.

N091502

RB

020T

1030N

EM

edi

um

-gr

ained

sands

tone

Bas

em

ent

Com

plex

Sedi

menta

ry t

ext

ure

with

orienta

tion o

f gr

ains

and

with

recry

stal

lizat

ion feat

ure

s.Q

z (4

9)>

Pl(28)>

Kf(14)>

Bi(8)>

Op(

1)

Mat

rix

is in m

inor

amount

and

exh

ibits

recry

stal

lizat

ion. It is

proba

bly

com

pose

d of

biotite

, se

conda

ry Q

z, c

hl an

d O

p. B

ut

the

amount

of origi

nal

mat

rix

is n

ot

cle

ar.

N091707

RB

021T

1030N

EP

sam

mitic

gneis

sB

asem

ent

Com

plex

Gneis

sose

Qz(

59)>

Pl(21)>

Bi(10)>

Kf(

7)>

Ga(

1)>

Mus･

Op

Seconda

ry m

inera

l：C

hl(2)

FC

20080702

RC

002T

1130SE

Car

bonat

e-qu

artz

-m

usc

ovi

te s

his

tR

iver

Kat

anga

Gro

up

nem

atobl

astic t

ext

ure

with s

hear

band

cle

avag

eM

us(

43)>

Qz(

21)>

Cb(

14)･

Chl(11)>

Kf(

4)･

Pl(4)･

Op(

3)

FC

20080803

RC

003T

1130SE

Coar

se-gr

ained

sands

tone

(ort

hoqu

artz

ite)

Riv

er

Kat

anga

Gro

up

Mas

sive

sedi

menta

ry t

ext

ure

with

recry

stal

lized

mat

rix.

Qz(

57)>

>O

th(5

)･Kf(

4)･

Pl(4)>

Mus(

1)>

Oth

The m

atrix

is c

om

pose

d of se

conda

ryqu

artz

(21%) an

d m

inor

amount

of se

ricite a

nd

opa

que m

inera

l(8%).

FC

080705

RC

005T

1130SE

Very

fin

e-gr

ained

sands

tone

Riv

er

outc

rop

Kat

anga

Gro

up

Sedi

menta

ry t

ext

ure

with b

edd

ing

by m

inera

l orienta

tion.

Qz(

20)>

Mus(

8)･

Pl(7)>

Kf(

4)･

Chl(4)>

Oth

(2)･

Op(

1)

Mat

rix(

54%) is

com

pose

d of Il,

Py-

like m

inera

l,G

e a

nd

oth

ers

.

FC

081315

RC

010T

1130SE

Mic

aceous

very

fin

e-gr

ained

sands

tone

Riv

er

outc

rop

Kat

anga

Gro

up

Text

ure

: S

edi

menta

ry t

ext

ure

with

min

era

l orienta

tion.

Qz(

17)>

Mus(

11)>

Pl(7)>

Oth

(5)>

Kf(

3)>

Op(

2)･

Bi(2)

Mat

rix(

53%) is

com

pose

d of Il,

Py-

like m

inera

lan

d oth

ers

.

FC

090420

RC

011T

1130N

EM

edi

um

-gr

ained

sands

tone

Riv

erb

ed

outc

rop

Kat

anga

Gro

up

Mas

sive

sedi

menta

ry t

ext

ure

. The

sort

ing

is g

ood,

and

the g

rain

s ar

esu

brounde

d to

rounde

d.

Qz(

63)>

Pl(15)･

Kf(

13)>

>SI(2)>

Op(

1)>

Hb･

Sph

･O

th

Mat

rix

is m

inor

amount

(5%). It

is m

ainly

com

pose

d of qu

artz

cem

ent, a

nd

part

lyopa

que m

inar

als.

FC

091929

RC

012T

1030N

EG

ranodi

orite

(de

form

ed

and

recry

stal

lized)

Riv

erb

ed

outc

rop

Bas

em

ent

Com

plex

Holo

cry

stal

line e

quig

ranula

r w

ith

defo

rmat

ion a

nd

sign

s of

recry

stal

lizat

ion. B

iotite

has

prefe

rred

alig

nm

ent

due t

ode

form

atio

n.

Pl(31)>

Qz(

10)>

Bi (1

5)>

Kf(

7)･

Hb(

7)>

>Sph

(1)･

Trm

(1)>

Opq

･Zr･

Ap

Seconda

ry m

inera

ls：Q

z(15)>

Ser(

10)>

Ep(

2)>

Chl(1)

FC

092228

RC

013T

1030N

ER

hyo

lite (re

cry

stal

lized)

Riv

erb

ed

outc

rop

Dyk

eP

orp

hyr

itic

. G

roundm

ass

isholo

cry

stal

line.

Phenocry

st： P

l(2)>

Qz(

1)･

Mus･

Kf

Gro

undm

ass：

Qz(

65)>

>B

i(15)>

Kf(8)･

Pl(7)>

Op(

1)>

Mus

AP

D080801

RD

001T

1130SE

Medi

um

-gr

ained

sands

tone

Wat

er

well

Kat

anga

Gro

up

Text

ure

: S

edi

menta

ry t

ext

ure

with

weak

ly d

eve

lope

d m

inera

l al

ignm

ent.

Qz(

63)>

Kf(

10)>

Pl(5)･

Oth

(4)

Mat

rix(

12%) is

com

pose

d of se

conda

ry Q

z, Il

and

oth

ers

.

( )：m

oda

l %

Tab

le

Sum

mar

y of

Obs

erv

atio

ns

unde

r po

larizi

ng

mic

rosc

ope

(2)

169

Appendix V-7 Result of Microscopic Observation of Thin Section

Scale 0.1mm

Crossed nicols

Photomicrographs (1)

Sam.No. ：RA003T

Lacality ：Lubaleshi R.

Open nicol

Rock name ：Medium-grained sandstone (arkosic arenite)

Qz

Qz

Qz

Pl Op

Kf

(Pl)Pl

Il

Mus

Mus

170



Sam.No. ：RA005T

Lacality ：

Rock name ：Granitic pegmatite

Open nicol

Crossed nicols

Scale 1.0mm

Mus

MusQz

Qz

Kf

Mus

Qz

Ser

Kf

171


Open nicol

Crossed nicols

Scale 1.0mm


Sam.No. ：RA006T

Lacality ：

Rock name ：Granite

(Pl)(Pl)

(Pl)

Pl

(Bi)

Qz

(Bi)

Kf

Qz

Kf

Pl

Kf

Ser

Mus

172


Open nicol

Crossed nicols

Scale 1.0mm


Sam.No. ：RA007T

Lacality ：

Rock name ：Dolerite

Pl

Op

Op

Chl

Pl

Cpx

Cpx

Chl(VS)

Cpx

Cpx

173


Open nicol

Crossed nicols

Scale 1.0mm


Sam.No. ：RA008T

Lacality ：Near Kanchibia

Rock name ：Very coarse-grained sandstone

Kf

Kf

SIQz

QR

Pl

KfOp

QzKf

Kf

174


Open nicol

Crossed nicols

Scale 1.0mm


Sam.No. ：RB011T

Lacality ：K-L road

Rock name ：Orthoquartzite (quartz rich medium-grained sandstone)

(Pl)

Qz

(Pl)Qz

Qz

Qz

QzQz

Ser

Qz

Ser

175


Open nicol

Crossed nicols

Scale 1.0mm


Sam.No. ：RB012T

Lacality ：Lukupa

Rock name ：Coarse-grained sandstone

MS

SI

Kf

Qz

SI

(Pl)

Op

KfKf

Ser

176


Open nicol

Crossed nicols

Scale 0.1mm


Sam.No. ：RB015T

Lacality ：

Rock name ：Orthoquartzite (quartz rich medium-grained sandstone)

Op

Hb

Qz

Qz

Qz

Qz

Qz

Op

Qz

Hb

SQz

SQz

SQz

177


Open nicol

Crossed nicols

Scale 1.0mm


Sam.No. ：RB016T

Lacality ：

Rock name ：Tonalite (sheared and recrystallized)

SQz

(Pl)

(Pl)

SQz

Qz

Bi

(Pl)

Bi

Ser

Ep

178


Open nicol

Crossed nicols

Scale 1.0mm


Sam.No. ：RB017T

Lacality ：

Rock name ：Psamitic gneiss

HbQz

Bi

Bi

Qz

(Pl)

Kf

Mus

Qz

Mus

Kf

179


Open nicol

Crossed nicols

Scale 0.1mm


Sam.No. ：RB019T

Lacality ：

Rock name ：Fine-grained sandstone (recrystallized)

Pl

Qz

Qz

Pl

Bi

Qz

Pl

Pl

Bi

Mus

Mus

Bi

Qz

Qz

Qz

Pl

Pl

Pl Qz

180


Open nicol

Crossed nicols

Scale 0.1mm


Sam.No. ：RB020T

Lacality ：

Rock name ：Medium-grained sandstone

Bi

Op

Kf

Kf

Qz

(Pl)

Qz

Qz

Kf Kf

Ser

QzPl

181



Sam.No. ：RB021T

Lacality ：

Rock name ：Psamitic gneiss

Open nicol

Crossed nicols

Scale 1.0mm

Qz

Ga

Qz

Ga

(Pl)

(Pl)

(Pl)

Qz

Chl(Bi)

Qz

Qz

(Pl)

(Pl)

Mus

182



Sam.No. ：RC011T

Lacality ：Riverbed outcrop

Rock name ：Quartz rich medium-grained sandstone

Open nicol

Crossed nicols

Scale 1.0mm

Kf

Qz

Op

Qz

QzHb

Kf

KfQz

Qz

Hb

Kf

Qz

183



Sam.No. ：RC012T


Rock name ：Granodiorite (altered)

Open nicol

Crossed nicols

Scale 1.0mm

(Pl)

Bi

KfBi

Qz

Qz

Qz

Hb

Kf

(Pl)

(Pl)

SphOp

(Pl)

Hb

Kf

Bi

184



Sam.No. ：RC013T


Rock name ：Rhyolite(recrystallized)

Open nicol

Crossed nicols

Scale 1.0mm

PlPl

Qz Bi

Op

Mus

Pl

Qz

Kf

Qz

Mus

Ser

185



Sam.No. ：RB008T

Lacality ：

Rock name ：Fine-grained sandstone (wacke)

Open nicol

Crossed nicols

Scale 0.1mm

Qz

Il

CbPl

Qz

CbOp

Qz

Pl

Mus

SQz

SQz

IlCb

Qz

Kf

KfCbCb

Pl

186


Open nicol

Crossed nicols

Scale 0.1mm


Sam.No. ：RB001T

Lacality ：Kanchibia R.

Rock name ：very fine-grained sandstone (wacke)

Mus

Mus

Mus

Mus

Ep

Mus

Op

Pl

Qz

Chl

Qz

Pl

Il

Mus

Il

Il

187


Open nicol

Crossed nicols

Scale 0.1mm


Sam.No. ：RB002T

Lacality ：Luitikila R.

Rock name ：Micaceous siltstone

Pl

Qz

Op

Qz

Qz

Pl

Mus

Mus

Mus

Mus

Kf

Mus

Mus

188


Open nicol

Crossed nicols

Scale 0.1mm


Sam.No. ：RB004T

Lacality ：Luitikila R.

Rock name ：Fine-grained sandstone (wacke)

Qz

Il

Pl

Qz

Kf

Op Kf

Kf

Pl

Il

Il

Il

Il

189


Open nicol

Crossed nicols

Scale 0.1mm


Sam.No. ：RB007T

Lacality ：Kanchibia R.

Rock name ：Siltstone

Mus

Il

Mus

Il

Op

Pl

Pl

Qz

Mus

Qz

PlIl

Mus

190


Open nicol

Crossed nicols

Scale 0.1mm


Sam.No. ：RC002T

Lacality ：River

Rock name ：Carbonate-quartz-muscovite shist

Qz

Cb

Chl(Mf)

Chl

Qz

Op

Cb

Qz Chl

Cb

Cb

MusMus

Cb

Mus

191


Open nicol

Crossed nicols

Scale 1.0mm


Sam.No. ：RC003T

Lacality ：River

Rock name ：Coarse grained sandstone (orthoquartzite)

Qz

SQz

Kf

Qz(Pl)

(Pl)

Qz

SQz

Qz

Qz

Qz

Qz

Kf

192


Open nicol

Crossed nicols

Scale 0.1mm


Sam.No. ：RC005T

Lacality ：River outcrop

Rock name ：Very fine-grained sandstone

Op

Pl

Qz

Chl

PlOp

Qz

Pl

Qz

Pl

MusMusQz

Il

Pl

Mus

Il

Il

193


Open nicol

Crossed nicols

Scale 0.1mm


Sam.No. ：RC010T

Lacality ：River outcrop

Rock name ：Micaceous very fine-grained sandstone

Mus

Mus

MusMus

Il

Op

BiQz

Bi

Ep

Il

Op

IlQz

194


Open nicol

Crossed nicols

Scale 1.0mm


Sam.No. ：RD001T

Lacality ：Water well

Rock name ：Medium-grained sandstone

Qz

Qz

Qz Pl

Qz

Pl

Op

Trm

Kf

QzQz

Kf

KfKf

Qz

Qz

195

Microscopic Observation of Thin Section · Appendix V-7 Result of Microscopic Observation of Thin Section Outcrop No. Sample Name Map Sheet Rock name Localty Formation Texture Grains,

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