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