DEPARTMENT OF MINERALS AND ENERGY
BUREAU OF MINERAL RESOURCES, GEOLOGY AND GEOPHYSIC·S 056180
RECORD
1975/55
TUGGERANONG Tam cmTRE WATBR FEATURE, A.C.T.: PRELIMINARYGEOWGICAL INVESTIGATIONS
( 1971-5)
by
D.C. Purcell and R. Goldsmith
BMR Record 1975/55
c.4
The information contained in this report has been obtained by the Department of Minerals and Energy as part of the policy of the Australian Government to assist in the exploration and development of mineral resources. It may not be published in any form or used in a company prospectus or statement without the permission in writing ofthe Director, Bureau of Mineral Resources, Geology and Geophysics.
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'v
RECORD 1975/55
TUGGERANONG TGJN CENTRE WAT8R FEATURE, A.C.T.: PRELIMINARY GEOLOGICAL INVESTIGATIONS
(1973-5)
by
I· I I I I I I I I
D.C. Purcell and R. Goldsmith
I I I I I I I I I I I I I I I I I I I I
C
SUMMARY IN'IRODUCTION
1
GENERA L GEe LOGY .
1
Rock unit Structure
1 1
ENGINEERING GEOLOGY
1
Engineering properties of dacite Rock quality of embankment foundations Rock quality in Spillw~-Stilling Basin area
1
2
4
CONUWSIONS AND RECOMMENDATIONS
5
REFERENCE
6
APPENDIX 11 APPENDIX 2: APPENDIX 31
Definition of terms Geological logs of drill holes Water-pressure test results and computations FlGURm
1• 2.
Locali ty map Geological log of costean PIATE:3
1. Geology - Dam and Spillway area 2. Seismic traverses
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SUMMARY
A preliminary geological inve~tigation was carried out of the embankment foundations and spillway site for the proposed water feature at Tuggeranong A.C.T., involving geological mapping, seismic refraction traverses, costeaning and diamond drilling. The rock at the site is a blue-grey dacite of Upper Silurian age • It is generally closely to moderately jointed and tight with occasional narrow sheared and fractured zones. At the embankment site no major defects are known to occur. A prominent lineation crosses the s.1 te in Tuggeranong Creek, but neither the costean nor the drill hole delineated any well defined shear zone. At the spillway site, approximately 20 metres of weathered rock overlies fresh dacite. Rock material suitable for embankment armouring purposes could probably be obtained at depths greater than about 15 metres.
FIGURE 1
LOCALITY MAP
SCALE 1: 100,000 8 Mil es
Llii!! f.J ! 1l::LFi I i H _, iH allElE:1 H H H 2 1 0
Record 1975 /55
8 ,
'l 10
J 2 Kilom etr es
155/AI6/1309
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INTRODUCTION Following a. request from the National Capital Development Commission (NCDC), preliminary geological investig-dtions of the embankment foundations for the proposed water feature at Tuggeranong, A.C.T. Were carried out. The area was geologically mapped, four seismic refraction traverses were shot, a costean was excavated, and two diamond-drill holes were sunk. The work was carried out intennittently from November 1913 to lI'ebruary 1915. The location of the embankment of the water feature is shown on Figure 1. GENERALGEOtoGY
Rock unit The rock at the dam site is a blu~grey daoite of Late Silurian age. The southem portion of the Tuggeranong Sewer Tunnel, about 600 m west of the proposed water feature site, was driven through this rock unit. J
Palaeomagnetio studies carried out on rooks obtained from the tunnel 0 indicate that the daoite flow dips at about 4 to the south. Plate 1 is an outorop map of the area and shows looationsof investigations. Exoavation of the nearby sewer tunnel shows that the dacite is hard and strone where fresh. The rock is generally olosely to moderately jointed and tight with oocasional narrow .sheared and fraotured zones. Outcrops are few at the embankment Site; most occur in the bed of Tuggeranong Creek and high on the north abutment. Some rubbly outcrop is present on the south abutment. Structure A stereographio projeotion of all jOints measured in the creek bed is presented in Plate 1. GoOd rook exposures in parts of Tuggeranong Creek show that the daoite is sheared or fraotured in plaoes. Most shears are fairly narrow (less than 20 om); the more prominent ones are shown in Plate 1. An· airphotolineament which crosses the oreek near the embankment axis is interpreted as a part ly sheared and fractured zone. nJGINEERING GEOLOGY
Engineering properties of dacite Excavation in the nearb.Y tunnel showed that the dacite is very hard and strong where slightly weathered or fresh.
Compressive strengths of
2.
2 samples from the tunnel were generally greater than 1500 kg/cm (21 obo psi). The strength of the rook mass (as distinguished from rock material) is reduced by jointing and some shearing; open joints are usually clay-filled, which reduces their permeability.
The tight joints are usually partly or
completely healed by calcite or chlorite. fairly high residual and peak shear
These healed joints may have
~trengths;
recorded values of up to 12 and 32 kg/crn
2
.
Tuggeranong tunnel samples
respectively.
Correlation between drilling and seismic refraction results is generally considered good; the following rough oorrelation were made: 600 - 800
mls
velooity represents soil
900 - 1200 m/s"
"
extremely weathered rook or soil with boulders
1300 - 1600 ~700
m/s . m/s
" "
" "
moderately to highly weathered rock mainly slightly weathered to fresh stained rook
For exoavation purposes, it oan be assumed that rook with a seismic velocity of greater than about 1200 m/s oould not be economically ripped without pre-blasting. The highest velocities obtained were in the order of 5000 mis, which would represent fresh, ver,y hard, and ver,y tight rock. Rock quality of embankment foundations The rock quality of the embankment foundation area was tested by seismic profiling (Plate 2), diamond drilling, and costeaning.
The investi-
gations were centred on an airphoto-lineament identified by a detailed interpretation (Plate 1 ),.
A lack of rook outcrop over the area was a
limiting faotor in the assessment of foundation rock quality. Correlation between seismio and drilling results show traverses A and B to be fairly reliable indicators of rock quality.
Results of
traverses C and D are thought to be less reliable. The intermediate velooity along traverse A (1000 - 1200 m/s) is Significantly lower than that in traverse B (1500 - 1600 m/s). This difference may result from more prominent jointing in the E-W direction than in the N-8 direction. Although the stereoplot in Plate 1 shows that joints striking N-B are the most prominent, data previously collected from the bed of Tuggeranong Creek but not confined to the immediate embankment site area suggest that jOints striking about E-W
m~
be the most prominent.
SECTION (south wall)
E
w -- ~~';' . ~ .-, .(:j ..
7cm wIde sheared zone at 45° N/2900
Prominent joints spaced 2 to 5 em. Atlitudes from 57°-74°5/243-277°
Moderately to highly weathered APPROX . LOCATION OF PEG 18800
SHEARED ZONE, StJbhorizonla~ wIdth lIorioble, mOlrlly 15-20cm Tends to dip S E in ports. High cloy conten!.
\
:
:. ~
..
5-15cm shears 0130°£/ I 70°
NOTE . Rock on trench floor is mos.t ly moderately" weathered (Slightly or highly weathered in ports), closely jointed . Jomts mainly limonite-stained, some cloy-coated. ., '
\
P L\ A N SHEARED ZONE; approx 34cm
;~edC:; ~~~~~;7:8 ~~~%;:/27//
E
./
w
5cm WIde verltca l SheOr(Ones '-".,.,
Cloy content high.
.. A · D... • : :.
D. ..
A
.,:,.
5cmwlde, cloy
t::..
~,
D ~
C:.d
,
Sheared near 5 cm wIde cloy shears north wall. Altitude uncertain.
Oocif~
rur;GERANONG
SOi l, alluvium , scofl.,.d bould.rs
Bulldozer spoi l
Fig.2. Record 1975/55
5 em Wide shears dip NE at 30~ .
A
A
, , , , , r , ,- , '~-y.,-,~,-'-'.....,r--y:.-.-T1,-,.--y--.r-..-:-..~~ , , ,, , , ,, , , , ~
(;)
f.:.: ~ .j
Prominent joints
DOZER SPOIL
A
N (Truel
A.
--53
.
A
A
...
..
.
TJ-r--~-
CREEK
ShtlOrtld or Irocfu"d rock MOIn orlJOS of lJ'oundwolflT mflow
Joinf, s/loll1i"9 Offi fud.
0 I 0
10 i
20 lee I i
2
4
~
6m.trH
: 1
Geological log of costean (left abutment) t Tuggeranong Town Centre Water Feature . 155116/1325
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If so, then the lower intermediate velocities obtained in traverse A (which runs roughly N-S) can be explained. The dacite exposed in Tugeeranone Creek is to sliehtly weathered.
~enerally
moderately
Jointine is prominent and closely spaced.
Some of
the most prominent joint sets are partly open and clay-coated, especially near the surface.
N~rrow
sheared zones are
fair~ common,-m~
being parallel
to the major joint sets although in places they are randomly oriented (see log of costean, figure
2).
Three prominent airphoto-lineamenta occur in the embankment area. The most prominent, which crosses thE,! embankment axis in Tuggeranong Creek is not obvious in the field, but is indicated by quartz-epidote veins in
I
some weathered outcrops. A costean excavated on the south abutment (Figure 2) close to the creek bed did not delineate any well defined speared zone;
I I I I I I I I I I I I
the costean showed that2
I
1.
the dacite on the costean floor is more weathered, jointed, and fractured than the surrounding rock exposures;
2.
while the dacite exposed in the costean
m~
represent a
broad fractured zone, the direction, dip, and width of the zone could not be determined accurately on the results of the costeaning; no preferred orientation of individual shears or fractures ia apparent; the sheared zones generally contain a large percentage of
3. cl~; 4. the dacite is generally closely jointed and limonite-stained and was easily ripped by the DB dozer (even though some of the dacite could be classified as being slightly weathered);
5. water inflows into the costean were mainly through open joints and fractures; most shears were fairly impermeable owing to high cl8¥ content. Water inflows entered the costean throueh the floor - which was about 1 m lower than water level in the creek - not the sides.
The rate of water
inflow into the costean was about 1 m3 per hour over a 48-hour period immediately after excavation. The seismic results (excluding those of traverses C and D) suggest a considerable depth to fresh rock on the right abutment2 below about 16 m of soil and highly weathered rock.
generally
Depths of weathering
on the left abutment are less variable, and fresh rock is indicated
between about 6 and 8 m below ground surface.
Fresh rock cccurs
about 3 to 4 m below creek level although moderately to slightly weathered dacite occurs at or near the surface a few metres upstream and downstream of the embankment axis. Drill hole WF1 (see log, Appendix 2) is located on the south .
0
abutment and was angled at 42 defect zone (Plate 1).
from the horizontal to intersect the indicated
The drill hole did intersect some minor sheared
and fractured zones (some of which were healed), but no major defect was found. The entire length of WF1 (75 m) was drilled through blue-grey dacite which was s1iehtly weathered to fresh from about 15 m (10 m vertically below ground surface).
Apart from a few narrow shears and fractures (see
also core-loss zones indicated on the geological loge) the rock was hard, strong, and generally ver.y tight. Correlation
drilling and seismic results was good.
betwe~n
Drill hole WF1 intersected embankment centreline at about chainage 18860, about 40 m along the drill hole or about,30 m beneath surface (see Plate 2), where bedrock velocity is indioated'as 3800 m/s. The rock at the point of intersection is hard, fresh, widely 'jointed, and ver,y tight (no water losses when pressure tested). The only significant core
los~
occurred between 25 and 26 m in a
sheared and crushed zone, which was responsible for the fairly large water loss of 27 lugeons.
The drilling results apparently suggest that
the defect zone, indicated by previous investigations, is not as significant as expected. The 3800 mls velocity zone (compared with other bedroCk velocities of around 5000 m/s) would now seem to indicate a zone of slightly poorer quality rock that has close jointing and minor shearing in places 0
and probably dips at about 60 to the west. Rock quality in the Spillway-Stilling Basin area Seismic profile B and diamond -drill hole WF2 (see log, Appendix 2) were located in the Stilling Basin area, with the eastern end of the . seismic traverse intersecting seismic traverse A at about chainage 18580 (embankment centerline). A good correlation exists between rock recovered in drill hole WF2 and velocities obtained in seismic profile B.
The seismic profile
shows that rock condition does not appear to change significantly along
I I I I I I I I I I I I I I I I I I I I
II . I I I I I I I I I I I I I I I I I I I
5.
the section.
The only change noted was that of a general lowering of
bedrock velocity from west to east.
On average it could be expected that
about 20 m of weathered rock overlies fresh dacite.
Rock material suitable
for embankment annouring oould probably he obtained at depths greater than about 15 m (slightly weathered and fresh daoite).
Rook defects in drill
hole WF2are generally closely spaced, but become more widely spaoed near the base of the hole; this trend would be expected to continue with increaSing depth. Several sheared and fraotured zones were intersected in the first 16 m and these are represented on the drill logs as blacked-in strips.
As
defects (main~ joints) are olosely spaced down to aboUt 16 m it is expeoted that rook fragment sizes greater than about 0.014 m3 (0.5 cubic f~et) would generally not be obtainable. Below about 16 m, ~ck fragments up to 0.03 m3 (1 cubio foot) could be expected; below about 25 m fragment~ up to 0.5 m3 would be obtainable in places. Attitudes of joints in the dacite in the Stilling Basin area oould not be detennined from outorops other than those in Tuggeranong Creek (see stereoplot, Plate 1). WF2 showathat:
Infonnation obtained from drill hole
(i) joints are generally open and stained with limonite,
and (ii) most joints are near-vertical, but many are horizontal jOints; their strike could not be determined from the drill core.
The predominance
of near-vertical and horizontal jOints interpolated from the drill core is generally in agreement with attitudes detennined from the creek bed (see stereoplot) • Referring to seismic section B, rook in and below the intennediate velooity layer of 1300 to 1600 m/s is unlikely to be economically ripped or otherwise excavated without pre-blasting. CONCUTSIONS AND HECOJ,1.':ENDflTIONS
1.
Construction of an earth embankment at this site is geologically feasible.
2.
No major defects which would endaneer the stabi 1i ty of
the proposed embankment are known to OOCUr at the site. Depths to relatively fresh dacite are eenerally much ereater than the proposed foundation level; the depth of stripping required will depend on the nature of the weathered rock and overburden. The foundation will be located in the intennediate seisn:ic velocity l~er of 1100 to 1600 nt/s (moderately to extremely weathered dacite).
This layer could be investigated by several baqk-hoe pits, and the degree of weathering and tightnesR of the rock generally .assessed.
6.
The results of these proposed back-hoe pits will help to determine the depth to a suitable foundation and whether foundation grouting will need to be considered.
PURCELL, D.C., 1974 - Tuggeranong - Weston Creek Sewer Tunnel, A.C.T.s Geological Investigations, 1971. 1974/11 (Rest) ~
Bur. Miner. Resour. Aust. Rec.
I I I I I I I I I I I I I I I I I I I I
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APPENDIX 1:
DEFINITION OF TERMS
Grain size Coarse-grained fttedium-grained Fine-grained
- 1 mm to 4 mm in diameter mm to 1 mm in diameter - less than t mm in diameter
- -i
Bedding Laminated Thinly bedded Thickly bedded
less than 10 mm thick 10 mm to 100 mm thick b~eater than 100 mm thick
Hardness of Rock Hard to very hard Moderately hard Soft
impossible to scratch with knife -blade shallow scratches with knife blade deep scratches with knife blade
Percussive Strength of Rock Core Strong to very strong ~oderately
strong
Weak
J oint Spacing Very close Close Moderately close Wide Very wide
cannot be broken by repeated blows with a hammer rock breaks after 3 or 4 heavy blows with a hammer rock breaks after 1 blow with hammer (includes brittle, fissile, friable, plastic, and flaky rocks)
jOints jOints joints jOints jOints than 3
spaced spaced spaced spaced spaced m)
less than 2 inches (5 cm) 2 inches to 1 foot (5 cm to 30 em) 1 foot to 3 feet (30 em to 1 om) 3 feet to 10 feet (1 m to 3 m) greater than 10 feet (greater
Joint Aperture lI'his describes the amount of separation of the joint surfaces. Joints may be open or tieht. If two joint faces fit perfectly, the joint in the rock mass was probably tight (or closed). However, if they do not fit it probably means that the joint was open, or possibly filled with clay that ha.s been washed aWB:JT during drilling. Weathering of Rock Fresh Fresh stained
no discoloration or loss in strength - lill'(mitic staining along fractures, rock noticeably lower in strength than the fresh rock.
Slightly weathered J.'oderately weathered
Highly weathered Extremely (completely) Weathered
- rock is sliehtly discoloured, but not noticeably lower in strength than the fresh rock - rock is discoloured ann noticeably weakened; N-eize drill core generally cannot be broken by hand across the rock fabric rock is discoloured and weathered; l·!-size drill core can generally be broken by hand across the rock fabric rock is decomposed to a soil, but the original rock fabric is mostly preserved.
I I I I I I I I I I I I I I I I I I I I
I I I I I I I I
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APPF.:NDIX 21
GEOLOGICAL LOGS OF DRILL HOLES
BUREAU OF MINERAL RESOURCf S, GEOLOGY 8 GEOPHYSICS
Rock
Tl pe
CrcU<.
ANGLE FROM HORllONTAL (9) ..
IS'T~o
.13.
COORDiNATES
-42.
_ _ _ _..1. _. __. __
~
_
':of '
0
~
Wf"l
FEAlURE
... . ( .T .
HOLE NO
----- -r --
12..b- (""~~&l .. ,~
DIRECTluN
_ N nS:70
F< L OF COLLAR
.i_.' 3'2' ('Pf:=~.).
Frequency
De o;,:".r '~:lon
.tholut;h', CC"II')'lt I
l ~~
TU~~c. .. _~
LOCATION
GEOLOGICAL LOG OF DRILL HOLE
WATER
TUGGE.RANON&
PHO" EC1
__ _ _ _ _ . . _ _ _ _ _ __
Structures
opt A "910 60 80 90' vOlnh ,valns, seams,foultS,etc
er·g· h I etr
,
.L:...L':::"'-~---"'-'---"--*"""
, --:--j ,--..; ~ .
..
i
2 -
!
,I !
,
'1"
I.
OF
4-
G'it oter Pressure ~ Test Losses ,,-, (Logeon,)·
o
-
.
I-
-. -- _. ,- _ - l -
J
SHEE T
.-
I
1,- ---
I
I t
I
i, ;
,
I
4-
It
i
UJ
i
\) ;)
.;
(
;
!
:
i
,
j
,
,
,
:
-
-1' -
1.-
, :
!
. ;
I
3" ~ ' 7;1 IL-I
10· 1'l.·7.
(b~ ..
i
•• ,11;..,
i
..---------~
, I
, ..
T~c.
Dc:r.dtc.,
va,,.;....10\7
eo..
Wt.o:+ L. ....c.cl
roc.k
..,\.ole.
_So'!> ......
'\!o " " ' - " .
f>~~~
b ..t
~""
~w
fr..,_~ ","c k.A-~
Co.....,.sc ~,.......:-~ ..
~,....". c..o\_rd ""L.......... ~ .
C 10.... '1
;'o;",+c.l .... owl
of........... ",...J. ,_k_ +'..c _ " ~ I &:n., " . -fr"",o ........1-c:..l . L"__ ~+" ~
GWoo
-~+
-l0_+
f--..c ...~ . cI ....y....lt Il · 7-n·'~
C-
""p
I " '...... ,
((
v \ l ,
bOrrel IyP.Wt'\\"c', N)C . f~.I\;LJ ·
t--0
r-;< ...
D.H ·( . ed '30 -11-7~ ompl.'ed o QQed by
\\
-11. -7'1
'R .~o\c1~ ... ,~
Vorl,col.cal.
I ..... : Ie.---
Froclur8 1.0 f} -
Number 01 fractures per 25 em 01 cor" Zones 01 COrtt 10$S blOCktl(j In
Bedding ond JO i n! PlontJs DB fecI Frequency -
Angles or. mtJosursd 1""10111,18/0 0 pIon. normollo Ifl. core O~I
NumlUIr 0 1 nalural dtJ/ecfs (ShfJO r'SIIQJn ls,frOCIUrtls) per 25cm 01 co re o ccurring
Of
,-.
<.~,
I~ .
Warer Pressure Tests
No t~'
~)(
"'ypo F 80d
~
I'l . ..,-,~ .
"ae.... ';)_. ,-7c.-
• VatutJ! ", 'U980ns stsou/a b, reod
,n conjunction
wi'" compul.:Jl i on
,hHIs Ttl" stlcfio"s orB Indicated by blocked In .trlPS .
sptJcdUJd mlIJrctJp' ongls rongs
Core PI'O IOgr oph Negal, ... No . W alel L fit/Ill AieosurBmllnls -
....I....~
t-BvtJ f III/'len haiti
L eve/
In
In
pr l)gr8ss 01 sPllei/l tld depth
ca mp/Bled hulo on sp.cd,tld dof8
Depth (m)
Block
a
While
Coloor
Co..... pI e+~\y w __--«.~~ 4~~\)'
... ~ ....~~r .. J we.Q,t-\..._ ...~ """ bl..+l)' ~ __tl.er..J. . 1"I.oc:itU'...-tQly
Fr4.S. \.~ FrQ"'~
l o+...."'....,l
- - - --- - -------------=:'---.---..-:--=----------' 11:1: I A1~/1"l..,C 1 _~ I
BUREAU OF MINERAL RESOURCES. GEOLOGY GEOPHYSICS
PROJECT IVOGEIl.~NONC, LOCATION __ .T";~~_~~~
a
GEOLOGICAL LOG OF DRILL HOLE
ANGLE
WATI?It,
~~~ .
FeATUIl.E
___~·.+f!~ ; _· _·.-_ ~-_-. -. -_. · : _-.-_:: ~ : : .. _.
W F 1. HOLE NO. __ ___
FR;~ ~O~;;O~T~·L- (~i ~ ~~ .ft~~O : : ~ ._-. ' ~I~E~';'~-N- : .·.·f ~:4~~~(:t;·~ ~}.- ~ _E _ l~ 7!ao. _ ~ .~~7_Q. .. .... R .L or COLLAR! P~;J. ·. (!f~ : ~_..,.). SHEET~
COORDINATES .
OFst-.
Detect Frequenc,;, Inf.rcepl Anole ~o 60 80 90
Structurel JOlnh ,V'lnt t leamt,faultl ,Ire
_.'-----'----L..-....l_ --- -- . ------1--~:-=--____l
~ ~, ~.- .. k ~~ -a'i.l
H_J.
F..
_Fr . ~t
.,/&oy CA"Y·~· P~ . TeY..f'"'" w\..~te.
Iloc.k \......a 0.. "".~I"''' ~ fI'LAA"-.cA.
v v loo·l II
v V /001.
V p,."k.. .. "!)~"'Y.. $",\~J . .v.~ ..
V ..;
... ~.
.
,
~
u-:· ;..
v ~
-.
V
~
-
.z+"}:; : 50~
.: . -
lS
V
V 1/
V
~(.
'iJol
,
I[.
.j .
,
!
I
F'r - F'r~-\: .
F,.- fr s-t V. k.-l ..... ff-~ b\4J" - '=> ....y . ......h· c.~ c.~
-+0
b...+k.t
~
loo?:
I
~7 ~
"11,,,1'* Y
,.';-°60"".
.a
v
i
I', ,
r .
,r
"V
V
V
..Jt ' i' '. ,
' I ,
.
,
v
..... - .--.- ..- - - - - - - - , - - - - - - - - - - - - 1 ;~·I·~r ". _d . \.. C:ore borrel fype
FroClurtl lOI} -
r:"'nmenced
I
"O~bJ
OS/SCI FrllQuBtlcy -
by
Number 01 nolv'ol de/e c ls (shtJars. jomlS ,fracturtJs)
pt"
2~cm of
cars occur l"ll1 (} 0 .' s P tJcd,tJd InftJrctJr ' angle (ange
D H~
Water level MtJD$Urllm",,/S -
10 -II - '''-
\ ' '' '''l'loI.~
Numbsr olfroc/ures per 2~ em 01 corti Zones 01 core/oss lJ/OCktu:l In
BlJddlng and JOlnl P/onlJs - - AngltJs ore mtlOS I.J r6ci r"I0111l6 10 a p l an. "o'mo/ 10 ' ' ' . cor, 061
N')
~ · f)i: ;.· ~" 11 "~:' ;'v"~ 1),,110'
Water Pressure Tesf5
Nores
l.l" II Iype
_ Y_ .1J
_ five : wfl"n hole f Ih't! !
,(I
In
•
VOlutJS In lugllons sl10u/d btl r80d
,n conjunction
"""f) computatIon
,fUJSIS resl sse/io n s :}rtJ ,ndlco/ed by bloclrild in $f"ps .
Core ' Pt,otOI3' oph Ne~ot've No
/J" IS/r6SS 01 speed1tlll dtJplh
Oopth (m)
c umpld1tuJ " "' s on s~cd,tJt1 dONI
Block 8 Wh.le
COlour
11-12-',,-
Q • S.\cl s ....~ I _ : \-=-
Vo-t.col.cole
"'.h "r.'.~
we 1{.(,r\..iJ.A.. .\
by
"
'\1
ecora-·T9757 -S'S--
155
? nf l.
I I
BUREAU OF MINERAL RESOURCES, GEOLOGY 8 GEOPHYSICS
Tv (,. (,. ER~N O~ (, Tu'l>~~~
PROJECT LOCATION
COORDINATES " c , !~, III
~0 0~ It~
r;,.
*
._u ~
80
~ CJ
:
-r~" -.-
Frot: ttJre
o.·u
g'Q
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,. . o
6
--- - - , -l-..
-(
,
-.
.
! t I
1
49 -:- '
pi 0.1«. - 1:)C". .y col.-.c'1" ..
.... Hl. ..... -. _
Fr.
:7-..... ...\ (~"'focl ... ,\~ ...
'~
II
4g·",-
V
f---
I
!.
I
~
: _r .
~l~-r- -t=~ 1_ __
:
v
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"
lo.o'Y.
S'
~k
a :' i
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,
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I! j' j'
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up ,or.a.
br~
.
'-: .
fJr"."I ~ o~~ a.r ~ ~t~ ~~W u" ..... 11 y ,---,,&1 ~
v........
I.
t'\4I~ ........ b-(~
_
c..u.-c. .. .2.O-S"O
~y
4.fWl.-t:.
tc.1~
"_"'I
~ v~
"..:.....a "0·" c..-. trr""~ ,,~ ,
-~j -- ,.
.
~ ~~ · (,,-6o-.
.
-'- - -+--1-I· ,_ •
i
:
•
,
T - - t -=-:: '- I -- j - l--l 1
:---;.-
·; ' : f - - - - - - - - l - - - - - - - - - ~..l____Lf---I~O "'~1..L!_l.u.._ _
'3 _.
•
I l~-~
l
'
t'W...y ~.......Jl '1~ .;.......... ~ "'"- ""dc..
- . -
I
5"'
S7
. -
i
V 'OO~ '5O.Jlot', ' ~ !
f---
oJ~ \c:.---i--- -. ~~7~.
I
II
V
c.~
Et',cl.-t ..
I .-':, - T:
'
i
: I
~
_ .. . -_. -+---~ '-~_I~, I '
S'+- J
;
,
I
' --~-t I ---: I
I
v
V~ SP-A,.J,. ~c. " r "-+I'Y ~ 4 t, ~ ~ ~h.~ .J-
t- .. :' ~PYact-IIf'U -"".....4~:l: __ y D.c. _ "
--'--II
.
i
i: '1.1. ' , I ..
70-10·
!
'
/od'L ~2
_. c..lc.lt4
I
.. -1--, ,
: '
~~
.
i , _----: _.
_
I
-.J.
to-
. '+S"-4"~ E,.:Jo-t...
.
V
~.-.l
6-p'~o+'"
:--tt:
. .-.---t, ; --LI. ---' j I
:
V
I
_\~,,~
~
'
~
N",
-I i
4-B
v •
Test LOS&85 (Lug8on.1 -
i.,
474
v
<$
oter Pre $sur.
,-- -, I'
--_.._,
100,
V
r"",.,. ... .,.c:
...
44""! :
I--
9~
.- tl :~i--1"'\.6.--,,-~-;-O\..&--b-r-~--~---l
44-
~
V
"I)....:.-~
"
fool 'rS-
V
,eorns,faults ,ett
:--~.r--:II~- -~~-~ ,,~ ~
41,
tJ
G'i
S'ructures ';Olntl ,'1eln. oj
- - i - - - r---:--: ",A..u
II
1/
90
..__-_·t-·__ +~ _-} _-__-; or~. . .... c:.-4...
I I • I f-----t---~(-I I " I I I=',,,,,,r '+-e. I -" v_ I "1 ... i I .F i I 4-",,,. r: I 1.;, I " j , I v i; I I
80
--- .- -·-=l=I·-- . . -~+ TT : l';~j~ O~.~
..,-
1/
'~
OF4-
ca ·
12
1./..1. ~
vI--
HOLE NO
COLLARJi'j;~ I...'~ 'f'_"<'_/ _ SHEET .~
Inf.rcept Anoia
Log
·· 12~40r! r·f-
v
F..
RL OF
~l:iS,ecl F'8QU8~CY
.c: _ :.. - b
~ ~
-- --
- -- D'REC'T·' ~N · - .' .i :i _6 ~ ~.c~_:~
~ - 42.~. E 1S'7~Q , ~ ~~.S'.7b ..
ANGLE FROM HORIZONTAL (91
GEOLOGICAL LOG OF DRILL HOLE
WF~
FE:ATuR.E
A .C-:T.
.• - . , .
. ..:.: . _1_
·r -
...
t-·
....l..._ _ _ _ _ _ _ _...L---l.._ _ _-1
I~,II'~- ·~----,--~-------------------~-,e-.--------------~---w-o-~-r-p-r-"-.-~-e-T-.-.-'.---~ "
Feed
I I I
H"7rt ((\
u i i (.. N~
Core borrel t ypa
~' ~I \
r I,u'!' t
Driller
tv}.,.?-
.. _..
DH~
Commenced Comple,ed L oQQ8d by
loo .. " .. 7,,-
'IL ' \J.'T"-itl
Stidd,,,,; and Jom! PlontJs Oeltlc! Frequency -
2~ em
01 CDre
ZontJ~
01 cora
lo~s blocked m
Angles are meosured rttlOllllfJ fa a plo"e normal 10 !he CON' o~,
Numb.r of n01urol d..tlftlCIS (shears. jomfs,lrocf"r6S) per 2$cm 01
core occurring 01 Wofe, LevlIl Meosur6m.nfs -
~
$p(Jcd/~d Inl.rcep' ongl. ronge
,-evel when 1'101. In progress of soecifled .depth
-2- Ll1vtJI In compl.'tldhol e on
~~c"i.ddofe
,~ :::~~~~;,~~9:~~SC:'::;~~:,~.::ad ,htHIf.
j
Ttls' sec/ions ortJ ;nd/cofed
!~~!::.~~-.! ~~~'rIP •
.
Core Photo9 r opn Neootivi No . Deplh (m)
Black
a Wh,'.
Colour
II-I'" .r.
It..c;.. , ~, . _...
v"r'tcalocole
I:h.r.kod by
FraClur. Log - . Number 01 fractures per
___ .._
I ~: Ie- ,
"
~~ wt£U~ .
Re-co-'-(IT975l·~-...L...--- '--------·- ------· - ------I-t\~--:/-A.L..1-F\-/:-1.,-<-7-F\--<-n-f--L-.....J
I I
BUREAU Of MINERAL RESOURCE!,;. GEOLOGY 8 GEOPHYSICS
GEOLOGICAL LOG OF DRILL HOLE
HOLE NO._ .
ANGLE fR~M HORIZONTAL COORDINA TES \ . ~ . 7!.c?
.e
ce) -_-4.2°· ~ _"\~~70
c'i
oter Pressure
~
Test LosI8s
~ oJ
(Lug8ons).
"0
I I I I I I I I I I I I I I I I I I
-- ------------- - - - - ---_._---,.-------, -..JF 1
PRO..iECl LOCATION
v
·I --;- I .
v v II
·- 1 - -
.- -
v
Fr
--. -T~t ~ - -
--;_._-,
v
.
v
f 1 - :~~-f- :l~
v 1004
· - -t
v
i
--4
..•
... --
-~
I --'
!
I
Mor& "~k_ ~
__ ____-+-...!-~ ""-e ,J~ ~ \.~
6' •.'-
.•
•
.
-100
i
. - .!
·
•
j
i · . ~o""'~
,
i
---.- .. - .,-
_",_-t'>, -.:.1..;....
.. bre .. Its
_·_~--:-_--.-...,-__ I . Epi.,l oT4- •
~',t-4."~
el- ~ .....u.
r..dc._ · F~~.ev~.
· "ii •••
v
· ep ......T&~ ~,G,'f... + . c.~"lcOfy ...t4L ,,-....
V
v v 70
_w I
!
i\
--to
12 _WI
-+_.
v
f
I
v 1004
V
I
.. --- .. - --t.- -...
7)-
V
v
Co,a pl~ I .... l~
7/r -
\I
1004 )( "Z
V
~--------~------------------~~~--~7~~--~----------~------------------~--+-----~ 7S-0-·
I
t
:!!
I
·
:
I
.
_- _ - - - 1 -T
J1- ---
-~~-
1- -
i ..J
..-i
f--------L------------ ":"...L_...L_ _...L_-"-,lJ...!.;: i
Feed Core
it-T~ "'-~._ . ,?orrel type N- 'K
"~':i'~J
,\,\,.\;:\. r_,·l.v_ t::>. H. c. .
Illdlor
"Qg~~
VIlI
'lcOI
oy
"roc/ure Log -
Number 01 fracfures per 25 e m Of corti
B(Jdd""1 and JOlnl PlontJs -
OefBC.' Frequency -
Water PreS8ure Test!
Zon",
An~/tJs are msosur8d ftJIolfV8 to
I'
• Volues m IV9t10ns Should lUI rsod In conJunClion wllh COmpulollon DIane normal 10 lhe core a,XI" Tesl Stlclions artllndlcofed of corti lOSS b/oCKBdm
COl'S occvl 'r/f'lg <71 5PIJClf,tld In'eret/p ,' (.!ng/e rongtl
_~
by blocked In sl,.,pJ .
I
Core Pt1otOgfOptl Negotlvf} No
/NUfsr L tll."el Mao surtlmiJnls -
Oap'h (m)
Block B White
Colour
1I-'~-11,-
~. ~ol d.,> ...~
scola
I ""'" ! '.'M
._---_._---,,-
-.-
._------_ .._ --_._._---
II
'""'$
Number of nolvral defeels (s!ltJors ,}(1 · " .' 1 .froClvres) per 2~cm of
30- 11-"1,-
r:""'lnencod ,.1''"1'1018'' I
Notes
':0)(
Droll 'vpe
1E:E:
, A.1C /1"l '7C
I
_~
I
BUREAU OF MINERAL RESOURCES, GEOLOGY a GEOPHYSICS
I I I I I I
PROJECT
rVCzG.ER ANONr, lAJA,eR FeATURE IN F .2 Nort<;~~~ .- TY..~~...:~.;~~~~ .cr.•.~·.~~ :'--~.·: f:_··f·,'.·. : ~.'. ~ .~ ~~.-_. HOLE NO . ..
LOCATION'
GEOLOGICAL ' LOG OF DRILL HOLE 1 ype
ROCk
OeSCriptlon
Structure,
and
Oeoree or Weothefln;
";Olnt. ,weins, •• ams.foulta ,Itc
LitholoOY. colou r •• treng.h, efc
TOp<;>OIL
SOIL AHC>
cw
goc.K.
..,
t-
_ 4 . " " '.... -t; .... o~Tt)' sull.l._'-z.-+.J b$
H""-
I~
-=-1
c.w
7-=-
I;
DAc.rre -
~----------------~ Jo,"..b.f&'" ~ ... ~...,!
T\Jf'~
<;"4), --\:>......... " n>oIc
~ ... L..,+Cl.,
I
_
i
~~'44")" J.4p~ .:
:T~!>~ .2.-~~ .
"- . ~~o~~p~ Ir..:.t -i' ~ \ S- c:..i 6:". ~,~ . .
..2.~
S>!!'y ...w..y __
\-4-!..
-.a:. ,""o.,lg.....n.t)'
W~ b.zt- "-.not a..-J. ~/~~3-'1 _. .
I I I I I
+.\.4p~ wh.h -, "Jz ,,\~...t\)' ....1ky .
DAc.rr£ .-
S....y......t
It\tiODAC.ITE.
W~+
I.I\~
_.-&.J. ,,~;~. P\'-:OU'(' ~ l-E;. ....- /
),-"lto../
~.\t o-f 'f"aAz b,,*~. 1'1A~;od...... > or-t('o~ fln..-J. ~ ~~ r ....)' Natic.""-Iy ~~ ~~ +n.- Ilt·S ........... ko ~,..:...Ic..-~4.,
q-id.ah..... b ... ~.
I-- - - . - - - - - i
s·~,~~s~ \I . .........
~ &f.6 o+c. .
\I
V
1/
~7.
1/ II
I I I I I
V
BIII& -~ ,.4.')", ~~
sw
V
o-#~~ .
V
'O{.
""-6 -*~)" ~
''I
\o~~
1/
~- "....;....a.
1/
Oroll type
Not ••
MOLE ..
Numb., of f,ocfu, . . per 2!J em of cor • . Zan •• of co'. 10 •• blocked In
Feed ."AA~lry
Frocfur. Log -
Cora borraltypa "~1.(. . (4·1..
Bedding and Joint Plone. - Angles or. meosured r.'""",. fO "plone normal 10 ,,,. cor • .
- '1·:lS"')... I'I.~(~~3S. -:-. ~~.~ Oriller D·H :C . (w.lf.-)
OtlftlCf F'tlqutlncy -
Commenced
I-;L . II '. 7 If: .
Completed
''' : ! I
' 7.1f
R, : C()01.~~ ..:~ scale 1c;:. ..... :=.1 ......
LOQged by Vertical
Checked bv
.. , ./ l ! " ,., (\. .
,
Walt"
•
• • 4.
_ .
.
Numbtl' of na/u,ol deltlCf, (.htlors,jornf',f,ac/u,u) PtI' 2$cm 01 cor. o~currtng 01 .pec,f'tJd Intercept on,'. range
Le"elllleasurement' -
cw
Co~e.te.1y w...:Jt.uc.t 1t~\.1y wO'. .~Qn.. M.oc:lU....+41)' wu="-w S\~I.-tl;>' w_4t.uClll Ft'UI.. 'is'lD.i .. ~
-
f=r.uL..
I'\W
SW F'St
F,..
-L.... Leve' "'.hen hole In prog, •• s 01 specified depth ..ll...- Ltlvtll rn COmbltlftldhaltl an .Ptlcilitlddaftl
-
1-1""
....w
-.J. \~ . ""~ , ...
Wafer Pr... ure
• Valuu
In
r •• tt
lug"ons Should bll 'tlod
In conJunct'on wi'lt computation .". ., • . T•• , ••Clion. or. i ndIcated by blacked In .'"p•. Core Photograph NagaI, •• No . Oapl" (In) .
Block 8 While
COlour
IIIjUREAU GEOLOGY
OF MINERAL RESOURCES, a GEOPHYSICS
PROJEC T ___ :1:\)~t:_n..~~~_~C{ __ ~_~~ . __F='i-Jrryg __ . ____ _____ ______ _ W F.l. LOCATION ___ ~Rct'l _ e>f__ T~~....:-~ w~ _r_~_·f.:::t:." ______ . ______ "___ HOLE NO . __ .. _
GEOLOGICAL LOG OF DRILL HOLE
It
Rock T,pe and Degr.. 01 Weolhering
LitholoGY, colour, .treng.h,.tc
II . ........,. .. !o~l'blv.- ~t~
Ir~D~ctrE
~c- .. -
F-~-t:
el..lor-i ,,~
.
~
u
.!: ~o ~
De.cription
'!I' ........r. '
0
0
~o
~.,..
a_ ~
U!
.. ~~
(1-
::#.'4 "''2J ~ 0 0 0
~..J
<:)
-
V
Fr
II
is
II
~ ~, Dive. tr-y I
II It
....o-.Iy
..
~'~"'Y~~ '
S"-'
"
. !
10
"
" -
F"- ~-t:
.......,
I.t.~. ~,o"
~..t'o~I4.U .
,_I
IlcHD
~j V
i
21-
95 '--/00 -
.2'}-
.l.oI+
i.--'"
!' I !I i
'3
:2
I
I
,I ~ I
\
y
I I
1
.2. I
"'ool"~!.:1 ~~r.l ~.
\-Icia
~c-. Io~ .
I
~ ;, •.·..t
"-" I-,
1
~ ~, " ........ :s -1~'" ",&.t. \1 • •_
-.J.
,,)o....... ~ .
t
;I
.
AAA"'~ ",t ""f ~.J .a.,o.&-Zo ·' ;2o'l'S ~ 2.0.... '0 bi""~
,
2-
<.
,~ &-a, 'J'"+ ~A4
'2
I
.. .)+.1.
~I"...... S~. Cr" .... 'y ...
I
I
_~~Iy .~ .
Ccrr\f' ~
~
-::a.
2-
T•• , Losael
:>
i~ (L~goona) •
~~~:1!iIo-t~ '-'O~o ~ e-( .. ~+o~)
"""-
'2
[ 4-
I ' i-
0,.-.,
::>
;
.2S
OF HO/..E
t-
r
I I
4 ·" -.
11
---
"' "'
-
"1": ......~ ,,~"-...a o Cfl". -t"it~,:r......,
,I
' Z ' 3.
Of.r Pressure
~-
Structure. Jo int. ,veina ••• oma,foult. ,.tc
80 '0
50
c.
II
f---
II
_,.I. -
v..yLw..--' ",1 .. 4. '.)re.y. p~O",.(~~ ~~ . .. --.
' I;
f---
$0
II-
!
R.L . OF COLLAR_l:1/_ ~_: ~\~.)--:-.J.'l. SHEE T :~ OF~.
~~.'.Cl~•.~.~nc:!_ In'ercepl Anale
oeuel Log ROD
.2.1
~oc•
- -- --- ---- -- ---- -- --------- ---- -- DIREC TlDN __ . ______-:: __ •. __ • ___
. ANGLE FRO"; ~'O~;;O~~~-L-(~; ~ ~ ~_-~c?:O.::.' COORDINATES _ J; __ !~_HQ . ____ _N __:l4~Q
,! II
II . II II II
~ r--
II'
I
~-
,>--. -- t------ f-.-
II
I--+-
I
i-
II
I
II I
!I
I, 'i !I I
JI
Ii,I
II I
! - .1'-,.I ,
.-
. '-T-' - -
: _.-t--
-
---- f-:- t--
- r- - --
~
~~-+--
, ;
l
i~
: . - ~-
f-- -
'!-~ I
>---
f----+-' '---!.--
f--i- - r----'- -- l-=j - -'1--
1---1--
-
1 ,,
i
-
II
[~I;;YP.
_ 11
OL. _f;:
- ---
Feed . Cr~W!y_
I r e bor.el'ype -'~x
.
--
. . --- --
~:(;L~ ~ _,-l'~:_\_"~ !-. _~~: ~;, .~ ___
Drille.
,
O.N .. ~. _ (-~-.~. ,)-
12. .: J1: _,'" ____ _. /6. ,.11 : -7~ . -.-
Commenced .
l~mpl.t.d
OQQed by .. R·-SaLU~~-Verlical Icale _ Jc-..=--l. ___
IheCked by
tL~~U. iCJt_
Record 1975/55
I
j " - - 1--- .
--
~
Note. FraClure Lag - Numb.r of fraclur •• p.,-
2~
Waf.r P''''''''I T.lt.
cm of cor • . Zon.s of core 10 •• blacltttd in
B.dding and Joinl Plone. - A"g/e. or. meo.ured relOllv e 10 a plone normol 10 '''' cor. (}J(;' Oefecl Frequency -
Number 01 nOlurol de/eci. r."eOr$,jo in ls,IracluresJ per 2~cm of core occurring 01 .pecified inlercepl angl. ran~_
Wal.r Lell.' M.asurement. -
..L.- L ...., ""hen "ole In progre •• 01 .p.cif,ed depl" ...lZ...... L."el in compleled hole on _cilied dol. -_
"""'" pc-ess.,.-c. -t.estl~ : , .. _sec....J. \...lc. d.r·,'\..L T~ !..ole. .... ckiU
Co.rr;..J. Clut
n · O ... cTfC!o
'2--"......
"'__
~
1")-'., 11"/7~J a.L~;1: .-t wF:l..
'0" ~c.k- rol'~ ~ '.-t ./
• Va/"M In lug.ons should b. ,.od in conjunctIon wi fh compufation
."..,• . r.., ..clion. by blacked in .'rlpS _
are indicoled
-_ .
__._--._ - -
Core Photograph Negative No _ Deplh (m) ~-- ---- ---
--- ---- --- _. --- --_. -- - _. -- --- - - - - - _... -- - - - ------ ------ -
Block 8 Whil• . Colour - -- - _.. -- - --- - _. . -.--- ----- -- - -_. - _ . .. - _. --.
-
-
•
_A••• _
-
' - - ' 0,-·- ·
-
--- - - ---
- -- - -- --- - --- - _. -
A1fi1'~77
-- -- - -- --
0
________
-- _. - _.. _ ..
-- --_.
? nf ?
I I I I I I I 'I I I I I I I I I I I I I
APPENDIX 3:
WATER-PRESSURE TEST RL'SULTS AnD COMPUTATIONS
--------------------
BUREAU OF MINERAL RESOURCES,GEOLOGY8GEOPHVSICS [
WATER PRESSURE TE STS REDUCTION OF FIELD RESULTS I; Time I Gouge I i Sec' !on Tested Wot.r M,ter Reodino 'I
I
I I
l
:lole
I 01 T o : Tes' (n\IJ\l
From
(""
(m)
Pre55ure
(lpa.)
' ~
Start
(ll
i
Finish
,
(tl
-I
rVv:<;e;~~NQN(,--.J)~V:'-~lTE., . ____ FEATURE . "ROM HCRIZONTAL (e) _ . -:-.4 ~~. .. DIREC TION . _. -' _~ _~ .~ . _ .
PROJECT .. . ANGLE
Tv_~~~~ .~~_C!~_6 . _ ~~f:'~_ _ ,; LeOkOQ@ :' Length IC()I;v;. _ . · Slope .SlopeHf
LOCATION __ ._ Water La..
'
(ll,
Te,1 . . 01Section ("')
Re'.
PACKER TYPE ..
ol"d",
(m'
.Llne'",'.
..L.~fT . _~&~T_~~.~.T
I;' -'.;:'(\:r' .,_"-'s,ZE 0"
R L OF COLLAR
_HY.D_ R~!J..4l~ ___ . - _
:LellCiJt1'I8jWoter I ~""'fOcl - [).Plh lo :Gouge 10 SlZeof Column or(.em -Stondr!g . Collar Supply II Pressure
(llml
_ ..
'~Pa)
friction Los •• s
'J Line :',
,lPa)
(~~£'~1A1'/"-
Water
Pre.sure
LOIS
llmj,n/m
(lPal
I
-
SHEET.J_OF
_I.
Woter Pr.asure Te.t Lou in 11"""1,,,
Te.1
Pocker
'''Pa)
DRILL LOG REFY_'='_
Effective
___ .. __ . ___ _ I HOLE NO~1.f] HOLEN'~'-4~.I!'JX
:, -
o-S"'- " ,-:~-
,2-7 LV(,EON
, i
I, ,
o
, i
i
I
ii
',;! I I j :
!, I
I i
-- ' """1
, r-----~----~----~--~--------- --~------~----~
____
~~
__ ____ ~
-1
.
I
I
I
I'i i I Ii: I ! i
i
.!
L __ _~_ _ _ _L __ _~_ _ _ _~_ _ _ _ _ _L __ _ _ _~_ _----~----~~~~~~~~~~~~--
• Va/u.s ore r.of1 'rom tjPfroprtot. corr.cl,on graphs Calculoled by Checked by .
'R -So\Gl~~ .
Reco r 1 1975/55
~~
, _ ' ~ I ..........
.:
·l l
__ . . - -
- - - - - - -- _..
.-
-_.- .... __ .-._ - ---_...
_. _-- _._._----------
- - - - --.--.- ---.------ _. __ ._
...
T55/AI6/1378
•
. TU~V.e -~~~~-{,~O.
PROJECT ANGLE FROMHCRIZONTAL(61 .. _ . .
REDUCTION OF FIELD RESULTS ?ole
Time 0'
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Cilainage silown in metres.
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PLATE
!~~~~~~::iS~'1
COMMONWEALTH OF AUSTRALIA
BUREAU OF MINERAL RESQURCES CANBER~A. A.C.T
A.C. T.
Al
r-A2-t--~---::=--:;:~~~t---t~---,---·t-i-:~~~GE~OLO~GY~By~~--JP;;;OT§T~U=G-=G-=E-=R~A-:-N:-:::O:-:-N:-:::G:-:T=O~W-::N~.-=C::E:-:-N=T=R-=E- r I WATE
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1'1
FEATURE
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~~-+____~____~__~______-4____~__
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METRES
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P.
GEOLOGYDAM AND . SPILLWAY AREA TO ACCOMPAI':;IY
-
E.G.,"" 'SUPERVIS ING
RECORD
DRAWN BY
R,C ,GoldsMilh
DRAWING NUMBER
I5.SJA!(',l/311
