Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701...

21
16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Boundary less confident Magnetic trend Mapped geology 0 25 km Figure 13b. Grey scale image of the total magnetic intensity - reduced to pole of the eastern portion of the Mt Liebig 1:250 000 sheet. The locations of the outcropping and interpreted mafic-ultramafic intrusions are shown. Desert Bore Shear South Papunya gabbro Papunya ultramafic Papunya gabbro North Papunya gabbro West Papunya gabbro Kakalyl Bore intrusion

Transcript of Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701...

Page 1: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

16/NT/701

23°15'

131°30' 131°45'

Fault Boundary confident

Boundary less confidentMagnetic trend

Mapped geology

0 25 km

Figure 13b. Grey scale image of the total magnetic intensity - reduced to pole of the eastern portionof the Mt Liebig 1:250 000 sheet. The locations of the outcropping and interpretedmafic-ultramafic intrusions are shown.

Desert Bore Shear

South Papunya gabbro

Papunya ultramafic

Papunya gabbro

North Papunya gabbro

West Papunya gabbro

Kakalyl Bore intrusion

Page 2: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

16/NT/702

23°15'

131°30' 131°45'

0 25 km

Fault Boundary confident

Boundary less confidentMagnetic trend Modelled depth belowCover & dip of magnetic unit

100m70°

Mapped geology

Desert Bore Shear

South Papunya gabbro

North Papunya gabbro60°

Papunya gabbro

Papunya ultramafic

West Papunya gabbro

Figure 13c. Pseudocolour image of the vertical gradient of the total magnetic intensity - reduced topole of the eastern portion of the Mt Liebig 1:250 000 sheet. the locations of theoutcropping and interpreted mafic-ultramafic intrusions are shown.

Kakalyl Bore intrusion

Page 3: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

16/NT/703

23°15'

131°30' 131°45'

0 25 km

Fault Boundary confident

Boundary less confidentMagnetic trend

Mapped geology

Figure 13d. Ternary radiometric image (potassium - red, thorium - green, uranium - blue) of theMt Liebig 1:250 000 sheet. The locations of the outcropping and interpreted mafic-ultramafic intrusions are shown.

Desert Bore Shear

North Papunya gabbro

Papunya gabbro

Papunya ultramafic

South Papunya gabbro

West Papunya gabbro

Kakalyl Bore intrusion

Page 4: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

16/NT/704

Creek

Sample location

38 Strike and dip of foliation

147

Trend line

0

Zone 52K

74250

7630 7635

38

28

70

38

55

32

50

38

58145

146 147

148

Yaya Metamorphics

West Papunya gabbro intrusion

250 m

cc

c

Felsic gneiss and migmatiticbiotite orthogneiss

Gabbronorite, gabbro andmagnetite gabbro. Chill zone ( )

Figure 14. Geological map of the West Papunyagabbro intrusion. (from Hoatson &Stewart, 2001).

Page 5: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

Creek

Sample location

35 Strike and dip of foliation

Fault

Fault, concealed

136

Felsic dyke 16/NT/705

0 1 km

2274

2474

747 757 767 777

30

35

40

50

50

144 141

139

140

142

143

138

137136

135

134133

2374

2174

c

Alluvium, colluvium and sandy soil

Biotite-hornblende granodioriteYaya Metamorphics

Felsic gneiss, quartzofeldspathic biotitemigmatite, metapelite, metapsammite,mafic granulite and felsic granulite

Plagioclase pyroxenite, pyroxeniteand gabbro. Chill zone ( )

Trend line

Zone 52K

Papunya gabbro intrusion

Papunya ultramafic intrusion

c

Papunya ultramafic intrusion

Papunya gabbro intrusion

Gabbronorite, gabbro, magnetite gabbro and pyroxeniteScreens of banded felsic granulite and felsic dykes ( )

Colluvium and black soilon mafic and ultramafic rocks

Quartzose metasediment, psammite,pelite and felsic gneiss

Figure 15. Geological map of the Papunya gabbro and Papunya ultramafic intrusions.(from Hoatson & Stewart, 2001).

Page 6: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

16/NT/706

0 1 km

Alluvium, colluvium and sandy soil

Yaya Metamorphics

Granite (strained) and leucogranite

Quartz gabbro, biotite gabbro, tonalite, dioriteand abundant granite dykes and net veins

Fault

Dolerite dyke

Felsic dyke

Creek

Sample location150

Trend lineFelsic gneiss, quartzofeldspathicbiotite migmatite, metapelite andmetapsammite

149

150

151

Zone 52K2174

2074

1974

877 897 917

PapunyaBeantree Creek

South Papunya gabbro intrusion

Unsealed road

Figure 16. Geological map of the South Papunya gabbro intrusion. (from Houtson & Stewart, 2001).

Page 7: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

Fau

lt

Fau

lt, c

once

aled

Cre

ek

Sam

ple

loca

tion

50

Fel

sic

dyke

Bor

e

Hom

este

ad38

Str

ike

and

dip

of fo

liatio

n

Mou

nt C

happ

le M

etam

orph

ics

Gne

issi

c gr

anite

, aug

en g

neis

san

d m

igm

atiti

c gr

anite

Maf

ic a

nd fe

lsic

gra

nulit

e

Inte

rmed

iate

gra

nulit

e an

d gn

eiss

Qua

rtzo

feld

spat

hic

gnei

ss, f

elsi

c gr

anul

itew

ith m

inor

maf

ic g

ranu

lite

Cha

rnoc

kite

Tre

nd li

ne16

/NT

/707

3074

1074

602802

003

Zo

ne

53K

010

km

Charley Creek

Milt

on P

ark

Anb

urla

Nar

wie

toom

a

Tanami Track

Ch

arle

y B

ore

Cu

rren

jack

ie B

ore

Kar

anji

Bo

re

Co

rkw

oo

dB

ore

Lim

esto

ne

Bo

re

Mit

chel

lB

ore

Mal

lee

Bo

re

Mo

un

t C

hap

ple

Bo

re

No

2 B

ore

No

9 B

ore

No

13

Bo

re

No

10

Bo

reN

o 1

6 B

ore

No

7 B

ore

No

11

Bo

re

No

4 B

ore

No

14

Bo

re

70

7574

86

8070

35

85

75

65 70

5051

5253

5556

5758

5960

6162

Mt

Ch

app

le

1206

m

40

54

Mic

row

ave

tow

er

Pap

unya

Alice

Sprin

gs

65

Allu

vium

, col

luvi

um, c

lay

and

sand

y so

ilU

ndiff

eren

tiate

d gr

anul

ite: m

afic

, int

erm

edia

tean

d fe

lsic

gra

nulit

e, g

neis

s an

d m

etas

edim

ents

Uns

eale

d ro

ad

Veh

icle

trac

k

Figu

re 1

7a. G

eolo

gica

l map

of

the

Mou

nt C

happ

le M

etam

orph

ics.

(fr

om H

outs

on &

Ste

war

t, 20

01).

Page 8: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

16/NT/711

Fault

23°15'

23°30'

133°00'132°45'132°30'

High magnetic intensitycoherent linear texture

Moderate magnetic intensity

Low and flat magnetic intensity

massive texture

Boundary confident

Boundary less confident

Magnetic trend

Mapped geology

Modelled depth belowcover & dip of magnetic unit

100m70°

Figure 17b. Solid geology interpretation showing full extent of the intrusion, including the results ofmagnetic modelling defining depth of alluvial cover and dip and strike of macroscopiclayering.

0 25 km

70°

45°

80°

50°130m

Page 9: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

0 25 km

16/NT/708

23°15'

23°30'

133°00'132°45'132°30'

Fault

Boundary confident

Boundary less confident

Magnetic trend

Gravity station locality

Figure 17c. Vertical gradient image of the Bouguer gravity field, including gravity station locations.

Mapped geology

Page 10: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

16/NT/709

23°15'

23°30'

133°00'132°45'132°30'

0 25 km

Fault

Boundary confident

Boundary less confident

Magnetic trend

Modelled depth belowcover & dip of magnetic unit

100m70°

Figure 17d. Grey scale image of the total magnetic intensity - reduced to pole.

Mapped geology

70°

45°

50°130m

80°

Page 11: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

16/NT/710

23°15'

23°30'

133°00'132°45'132°30'

0 25 km

Figure 17e. Pseudo colour image of the vertical gradient applied to the total magnetic intensity(reduced to pole).

Fault

Boundary confident

Boundary less confident

Magnetic trend

Modelled depth belowcover & dip of magnetic unit

100m70°

Mapped geology

70°

45°

50°130m

80°

Page 12: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

?

?

?

??

?

?

??

?

?

?

?

?

?

??

?

??

??

??

?

?

?

Fau

lt, in

ferr

ed

Fau

lt

Dyk

e

Line

amen

t

Cre

ek

Mas

sive

roc

km

m

m

mm

mm

mm

m

m

mm

mm

mm

m

m m

m

m

mm

m

m

m

mm

m

mm

m

m

mm

m

m

m

m

mm m

mm

mm

m

m

m

mm

m

mm

m

m

mm

m

m

m

m

m

m

m

mm

mm

m

m

m

m

m

m

m

m

m

mm

m

m

m

m

m

m

m

m

m

mm

m

m

mm

mm

m

m

m

50

60

447562

65 70

29 2726 25 24

22 21

20

19

18 1716

15

13 12

41 40

3839

36

35

34

33

m

Mt

Hay

Plu

nge

of li

neat

ion

Str

ike

and

dip

of p

laty

alig

nmen

t

Fau

lt; in

ferr

ed, c

once

aled

Alte

ratio

n zo

ne w

ith d

ip

T

TE

arth

tank

70

72

6065

75

7585

65

65 70

80 72

70

70

54

75

40

4345

63

31 30

48

32

45

47

Apl

ite

Ano

rtho

site

Gab

bro

Maf

ic g

ranu

lite

Maf

ic g

ranu

lite,

gar

net g

neis

s

37

70

6570

4443

4245

68

46

80

75

35

75

75

Tre

nd, w

ith d

ip

Str

ike

and

dip

of fo

liatio

n

Syn

form

Ant

iform

Sam

ple

loca

tion

Bor

e40

Ove

rtur

ned

antic

line

Syn

form

al a

ntic

line

62

16/N

T/7

12

05

km

1074

0074

003

103

203

Zo

ne

53K

Val

ley

Bo

re

14

m

23

28

A

C

E

G

H

F

D

B

J

I

Cla

y, a

lluvi

um a

nd s

andy

soi

l

1252

m

Mou

nt H

ay G

ranu

lite

intr

usio

n

Anb

urla

Ano

rtho

site

Page 13: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

of mapped and inferred Anburla Anorthosite, and the interpreted eastern extent of theinterlayered mafic granulite and garnet gneiss. The results of magnetic modelling definingdepth of alluvial cover and dip and strike of macroscopic layering is also shown.

Figure 18b. Solid geology interpretation showing the full extent of the Mount Hay Granulite, the extent

FaultHigh magnetic intensity

coherent linear texture

Boundary confident

Boundary less confident

Magnetic trend

Mapped geology

Modelled depth belowcover & dip of magnetic unit

100m70°

Low and flat magnetic intensity

Moderate to high intensity

Moderate intensitysub linear texture

Anburla Anorthosite

High magnetic intensitymassive texture

Mount Hay Granulite

Interlayered Mafic Granulite & Garnet Gneiss

16/NT/716

23°30'

133°45'133°30'133°15'133°00'

23°15'Zone

Deformed

Creek

Harry

0 25 km

80° 70°

80°

45°

45°

60°

50°

55°

<120m

<120m80°

<120m

<120m45°

<120m

Page 14: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

Figure 18c. Vertical gradient image of the Bouguer gravity field, including gravity station locations.

0 25 km

16/NT/713

23°30'

133°45'133°30'133°15'133°00'

23°15'

Fault

Boundary confident

Boundary less confident

Magnetic trend

Gravity station locality

Mapped geology

HarryCreek

Deformed

Zone

Page 15: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

Figure 18d. Grey scale image of the total magnetic intensity - reduced to pole.

16/NT/714

23°30'

133°45'133°30'133°15'133°00'

23°15'

0 25 km

Fault

Boundary confident

Boundary less confident

Magnetic trend

Mapped geology

HarryCreek

Deformed

Zone

Page 16: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

16/NT/715

23°30'

133°45'133°30'133°15'133°00'

23°15'

0 25 km

Modelled depth belowcover & dip of magnetic unit

100m70°

Fault

Boundary confident

Boundary less confident

Magnetic trend

Mapped geology

Figure 18e. Pseudo colour image of the vertical gradient applied to the total magnetic intensity(reduced to pole).

80° 70°

80°

55°45°

<120m

80°<120m

<120m60°

50°

45°<120m

45°<120m

HarryCreek

Deformed

Zone

Page 17: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

16/NT/717Enbra Granulite intrusion

70 Strike and dip of foliation

Vertical foliation

Creek

6 Sample locationFault

Felsic granulite and minormafic granuliteMafic granulite and minorfelsic granulite

Alluvium, colluvium andsandy soil

Trend line

Vehicle trackCalcrete over shearedmafic granulite

0 2 km

Zone 53K

80

72 85 73

85

80

5

6

7

118 9

10

80

Burt

Creek

23

4

72

757075

Snake Well

3174

3474

3774

803 853 903Yambah Hstd

1

Hills

Enbra

Anorthositic gabbro andrare anorthosite

Figure 19a. Geological map of the Enbra Granulite intrusion (modified after Shaw et al., 1983).

Page 18: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

layering is also shown.

Figure 19b. Solid geology interpretation showing the full extent of the Enbra Granulite. The resultsof magnetic modelling defining depth of alluvial cover and dip and strike of macroscopic

16/NT/721

23°15'

133°45' 134°00'

Harry

Deformed Zone

Creek

0 25 km

FaultHigh magnetic intensitycoherent linear texture Boundary confident

Boundary less confident

Magnetic trend

Mapped geology

Modelled depth belowCover & dip of magnetic unit

100m70°Moderate to high intensity

massive to sub linear texture

Low to moderate intensitymassive texture

70° 70°120m

Page 19: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

Figure 19c. Vertical gradient image of the Bouguer gravity field, including gravity station locations.

0 25 km

16/NT/718

23°15'

133°45' 134°00'

Fault

Boundary confident

Boundary less confident

Magnetic trend

Mapped geology

Gravity station locality

HarryCreek

Deformed Zone

Page 20: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

Figure 19d. Grey scale image of the total magnetic intensity - reduced to pole.

16/NT/719

23°15'

133°45' 134°00'

0 25 km

Fault

Boundary confident

Boundary less confident

Magnetic trend

Mapped geology

HarryCreek

Deformed Zone

Page 21: Figure 13b. Grey scale image of the total magnetic intensity - … · 2020-07-07 · 16/NT/701 23°15' 131°30' 131°45' Fault Boundary confident Magnetic trend Boundary less confident

16/NT/720

23°15'

133°45' 134°00'

0 25 km

Modelled depth belowCover & dip of magnetic unit

100m70°

Fault

Boundary confident

Boundary less confident

Magnetic trend

Mapped geology

Figure 19e. Pseudo colour image of the vertical gradient applied to the total magnetic intensity(reduced to pole).

HarryCreek

Deformed Zone

70°120m

70°