beach sands investigation: report on a deposit three … · i *, tovar@1ho bualt-c~psd sandstclle...
TRANSCRIPT
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COMMONWEALTH OF AUSTRALIA.
DEPARTMENT OF SUPPLY AND SHIPPING.
BUREAU OF MINERAL RESOURCES GEOLOGY AND GEOPHYSICS.
REPORT No. Iql-f.~ /76 " ,
GEOLOGICAL SERIES NO. ';"9 -
PLAN N03. N60-2-l. N60-2-lA. N60-2-lB.
BEACH &NUS INITESTlGATION.
BEFORT ON A DEPOSIT 'IEREE MILliS NORPH-NORrHWEST FRCM LENNOX HEAD, .
NEW S<DTH WAIES.
by
T. D. DIMMICK
D. E. GARDNER.
Geologists.
F:iald Work by 'Ii. D. Dimmick
DOl J. McGarry (Student).
SOU'lHPOHT. QUEENSLAND. 5m NOVEM3ER, 1948 • • , 1 ...... ~. _ .,"
DEPJI..R'lMENf Oli' SUPPLY AND DEVELOPMil:Rr ..
Bureau 01' Mineral Resources, Geolog aud GcoPh'fSiCS.
Bepurt No. 1946/ {NOO-2-1.
Plan No. (l'a)-2-1A. (mO-2-lB.
BlUeR SANDS INVESTDAi'lOI' • ..... t." •
REPOO! ON A DEPOSIT mRD 1W..liS NORl'H-NOHl'BWl!ST F.R<!4 LENNOX HEAD, .' NEW soom WADS.
pJ.ans ond sections or tilEJ deposit are included at the back of this report.
1. IntroduC tion.
1'b$ depoe! ts at heavy-mineral. sande which are at presen t be~ exploited altmg tb.e East COQ,St occur on or within e: few humred teet Of the ocean beacheS. The OCCUl"rmce 01' this deposit at a distance of nearl:r 1* miles fran the beaoh eMSgesta the pOss!bUlt., tha t ot'ter depostta mrq be toum at (Jcm8 distance trca "the coast line. Of 1nc1dantal interest is the possibility that b dep)s1t. which pmsunabl,. was tOl"nled by 1I1ve or surf' action j ' may be a~ slightly higher leY81 ttIan the deposits adjacent to present aq beaches.
2. J:heLocelitz or thaD!R~sit.
A loeal.1t1 J08» e.i1d a plan Of the area within whieh the dep:>sit OIl cup:a are sboWn on Plate' 1 at tile bad( 01' tlli is reporl. 1he deposit 1s 4 mUes north-northWest from Len.no: lIead, am nearJ.r It mUes :f'l'Om seven Mile Beach. 'l'h6 aree within wh1ch 'the deposit occurs is boUDie4 on the east by the Se'ten MUe Be~h and on the west 'by a steep sCfUP of basalt,appr01tlmate17 3 mUea trail tbo beach. The area _ons1sts 01' several narrow northel1,-t:ren.cU.llg salld, tracts separated. by low-lylJJg and s1laD1P1' grou.nd. ~ sandy tracts are arcuate sbe;pfJd, 11kll SQven JlUe Beach, being concave towarda the east. The most easterlY &lld most Ell evatad sandy tract compr.1.sea the dune area adjacEnt to SeTEIl XU. Beach. The westal"ll1()$t aand7 traot, 1lh1cb. torms the eastern boundal"7 at the Ne1f1'Y'bar Swamp, rises ,.n 1ts northern portloIlS to about 16 feet above hjgh 1Vaterlevel: 'tba other sandy tracts are lm.lOh loer,being 1:1.1It» above Pl!lnp leval. The arouate shaped saq- tracts appear to hf{Ve been :fb1'Jl8d during an eastward recess1 on at the beach line. 'lhoy apparelt17 represSlt successive beaCh lines :lbl'JD.ed b1 -:00 developn:ent ot sandep1 ts no ltll1rtu'ds f'rc:m the sol14 rock area. adjaceo.t to Lennox Head aId the 1lIl3S11or area 2~ to 3 mUss northWest tl'Qm Lennox Read. The deposit of heavy minerals occurs in the IlOrtbo-western portion of the most weste111 sand tract. a.t the toot CIt a basalt-ce,pped sandst ale hill. agaiDs t vh1eb. the san<l¥ tr$ct t«rmina tes.
3. Examination or 'the AeR0nt.
Tm deposit was samplEXl dur 1Dg the week ending 13th February. 1948. b,. bol'1.ng to water level. with a post-hole digger, trOll1 tbe nortb.6rn GIld ot 1b.e dOlJOe1t to a point a:pprozinnte17 lZOO teet southwards. ?'hE; bore sites are shOll); on Plate :a at 'the baok ot this report,and sectiOns a.cross 'lbe blYl"e lines are ahom on Plate 3. 1be da"blm for levels 18 the h1gl. .. tel" ark on Seven MUe Beach at 10 a.m., 12th .Jrebrua17. 1948. It is probable tlvlt the high water maD: was a1:x;)u t a toot above aettal high water level. Sanples obtained trom bores were drl6d 8Xld weighed. and their 'VOlumes were determ.1ned. Heav mineral eo~ElI'ltrates were separate~ tran.1he samples by pann1.rlg. end the weights and volumes or 'the conoentrates were determ1ned. '!he percentage composition of a canposito aSI1ple of the concentrates was dotermiDed by gram ;;ountq.
4. !!sul1D.
(a) !1'h9 O1'¥1nof the_DeRosl,s. '!he sandy tract on v.h1ch the deposit occurs developed as a sandspit in a northerly directIon fran 1he solid roCk: 8.l"ee. 2--~ in 3 miles north-west from LEnnox Head. The sandsp1t progressed
i
*,
tovar@1ho bUalt-c~psd sandstClle hill or spur s,pPlOX1matel7 tour miles nm-thnorth'C'ast trOll Umnox Read. and eventuallY' formed 0. sana ... bar men its northerl,., tip reaclle~ the sandstone hUl. HClV7 m1.llerals t1ero concentrated on the beach (the easterntlank at the ea.ud ... b8.r) by the action of 13.ves alld surf during 8to l!DJ' flee-the!', just as they are on present daY beacheS. The QVOS ~ surf e11ept in tran 1be ocean. not parallel to the beach bnt sli~tl" obllque.lJ'. v1zt~I\'11ittle south ot ~~tf and as a r($u1.t 'the baa"" mil'l3ral concentrates ~e1'8 gradual17 l1dlt:ed north\'lUds along the beach. Totards the nortb.f#'D. elUl 01' the beaeh. 1he northl'Jard movement of the hea'V7 minerals t:ae arrested partly by tbe hill or sandstCllC), and partlY because of the tact 'tbat. due to the curvame. the nortbem portlolL of tbe beach had a trend scmEJ't1b1t east of north, l.e. pal'all&l to the surf. en1 Ql'Ve. line. Sand ccnta~lng a ctllslderable propOrtion at ma1'Y mlmralstas apparentl,. mshed 0181' t.he crest of 1118 sand bar during storm;r Tleather into the quiet TJat6l' on 1i1e 11$stem slde ot the bar.
fhelWel at Wh~h _ deposit occurs BUlr88sts that 'ftle s_ level mar bave been a tev teet, but probab17 less than 5 teet, abcrre the present sea level men th$ depost t as tomed. The sect10ns (Plate 5) shoW that tbe mineral beariDg sands tie& trashed over the undEl'l"lyiD& cll1t t1h1ch skDis. in the northern plrt of the deposIt, at e. height ot at least 7 foot above presont mean hlsh t.ater level. Seasonal hiaht1des are up to :2 teet above men h1l#l t1ater.. 8ld. in etolmJ Weather, the leTel rises higher. '!hue. deposits ot beav .ra1.n&rals. hjghl7 c cncentrated as in the "Seta" at the deposit thich is be~ discussed, ectad 1'7etl be tormad at.a hejght ot a several. teet above m9$ h1gl. \'1Qter mark. It is quest 1on&bl.e,howver. nhethar 11/).7 au.d1 4e»os1t coUld torm w1th its basal port1on at lEast 7 teet abovo J!l$O.n hl~water level.
(b) A D!Scr1Rtion. of' the De~s1 t. The depOsit 1s tmierlainby a toot or so ot th ito sand •. and by cl.s:, or mud, presuna bly derived from telspath1e sandstones. 'Ohieh ou:t;C1'Op at tho no2'thern (D.d ot the sand ... bar am ''dllch prObably occur bonsath tb& mud. At the base at the deposit is a varying th1ckmsa at sond (from 0 to 12 1nehes) tihiCh contam.e a cCIIilparative17 high proportion of heavy m1n.erala. Qld is spoken at locally as the "seam". In tlJ!) tabllated date. SivEn beloTl, the tem "oesmlt haa been retained tor thin co~ rativ6l.y h28h .. grade portion of the deposit. Tha seam 18 overlain br a thickness or " to 7 teet of sand ¢1ch though 10\781' 1n gl'ade. ccntaiDs sutf10ient heavr minerals to 11a1"1'an~ their exploitation. In the tabulAted data belo". this is referred to as the "Sd OVerlying the samu • The d0p031t 18 tree from o'9'8rbut-den e.xce,pt tbr asnall area SUrl"oUD1.1ng Bore No.la.
The bo1'1tG bas not extmdE)d to the l1estern nor to tha southern boumaI.7 of' '!he depos! t. It 18 thOl1gb.t the. t the g:mde of the de.posi t tdll decrease in each of 'these d:trectiom. 'tnt 'this opinion neods to be tested bY' turther borl~.
(0) Estimates otQuantltieo. The qua12l:1ties ot hGav mintral concoIJtratel!J. end the grados at the mineral bear1~ sallds are tabulated as tollow,- .
Table 1. Tonnages t1 Rea,., 1ttn&ral cancentrates. Voltmles UIld ATera,ge Thlolmel!Jses at Wneral .... Be~tna sends and of O'9'erburdtm. end Average «rades of 1Uneral Bee.riIlg Sands:-
'lablo l(a) t In the Seam. Table l(b) , OVerlYing the Seam. ~e·~1c) : Total.
1b.b1e 2. Ton.1ll48S Cit Jiea'91 }!1neraJ. conc~ntrates,VolUJms and AveragG Th1c~ saee .ot M1neral-Bea$G Sands and off OVerburden. aDd Average grade at Hine:m.l Bearillg sands in strip 1 Yard t71do Along Boro Lines ,- '
!able 8(a) 1 In the Seam. iab1.e 8(b) :' OVerlyi~ the Seam. ~blo ate) : Total.
: ,I
Page 3.
~bl.e 3(0.) ; In the seam. 1.tlble 3(b) : OTerl11~ 'the Seam. 'l'c.ble 3( c) : Total.
The t~es of Tables 1, 8 end 3 were derived tr<m data tabula.ted in the App'nd1ces a& tollo\'l\3 ; ....
Table 4.QUantit ies Of Heavy Mine mJ.s Intflrseeted in l3cr ee: ...
. ApJI$nii1z 1. iabl.e A s Seam. Ap»mci1X 2. Table A , Send OVerl:yiDg seam .•
.. !l.'a;,;;;;b'l ....• f' ........ :s. We1gb.t at MmGL"aJ. in 1 Yard strip Along .801'0 lAne e-
Ap:£8ndiX 1. Ta.bl,e B; Seam. ApJ;enat.x 2, !Cable B ; Sand O'\I'er.J3ingSeam.
Taht e C. VoltUD and Average ThiCknesa CIt M1neral ... Beari.llg sa#! Alone Bo~e L1na :.
AppendlX 1, ~bJ.e C I Seam. Apperu:l1x at Tab18 C; sallA oYel'ly1ng Seam.
Table D. Vol'Qnle QUd Average ThiclmeDSot OVerburden Alo1l8 Bom Lins. . . ,. 1'h9. deposIt 18 tree tr('JSl overburdon. except t($ a smell 8X'ea
tJIll'l"oundillg BoJ':$ No.;Le. This is referred to 1Jlt-
Append1% 1, Table D = Seam. Appendix 2. Table D ; Sn~ OVerlying Seam.
~bl.e ll. Average \7e1gb.t at Baav 1.t1ll$:na.1. Concentrate per 1 Yard strip Betl:men Bore Lines, am Average Area of Longitudinal Section 01' Mine:ttll Bearing Sands aId ot OVar'Wl'den 13etwen Bozo IJ.nes;-
Appendix 1 t ilabl;e E , Seem. Appmd1z 2, $'able 1Il I S8.Xld O'Ve1"l11ng Seam.
Table 'H. Total Wei81 t ot Heavy IJiD.$ml OOllOent~te. Tdt;al. Volume ot· . Mineral. ... Bealina Same, a To 18.1 VolUllle ot Overburden bett7etn
Bore J.iiles ~... .
AppUldix l, Table F., Seam. Appmal% a. Tab~ F t Send OVer lf1ng See.m.
iJhble .0;.; , AV6~: T'nicknesees 0 t lrttnerel-l3earing SB1lds and o1J OVe:tbU>don % .....
Apl&lI41x 1. ~b1.e G t Seam. App9nd1X e. ~bleG ~ sam OTer~ Seam. Appen4~ 3, TAble G s Total, Se8D1. and OVerl,-1ng saM.
Ibble HfiI: Porcentago Ctun.PositioXlB at Goncentmtes and \'Ieie'Jl,ts or Eaoh of the Heavy LUnerals :-
. '.
Append1X 1. Table B 2 Seam. .' APten diltS, !l'able :a : Sand ~171Dg Seam.
T. D. DlWIOlt.
D. E. GARJ:[i/ER GeolOGist. in chArM-
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TABLE 1. (a). ~--=--
"and 5 l278.7
5 and 6 1526.0
TABLE 1. (b). ---
I I I I
I I I I I I I
--~~=-l- ~- -----~~-----__+--- ----t--TOlA.L f 3m?1 J ..,.61.9.8 I J •• ____ -- --- -:---_--'__ _--1_ --L ._~_
I I J I I J I I f , J
-
I I ll.r I ~-7.~--- .------
_ _____ J"'--_____ ._. _ •• ---1 --- ;-__
TABLE 1. (e). ---
TOTAL. MINIriw., BEAll· AND 'IVERtfIRlSAND.
nat. r:ran 'l'ab~ .. ~(a) am l(b)
--TO'1'AI. ~GES OF HEAVY MINERAL C.QNCENTRilT~OLUMES AND_ibVERAGSL.TIll;CKNES§Jill...OF MINERAL.=J?EARING .;,,;:o,;=---=~·iND§..._ilND 0],' OVERBURDEN..2. ~'~JlJ1LAVERii.GE...QRI\,DES OE-MIBERJ:"L-BE!ARIN~j.NDS..· - - .
(J A.p})8lldicea ~ and 2.
)
-SRAlL
TONNAGES OF HEAVY MINERAL CONCENTRATE, VOLUMES AND AVEllilGE THICKNESSES OF 'MlNER~ ~mG ~.2..~~~~NLANDAVER.AGE . G&USE...QF. l'IIIN]gzU.-BEiJBINQ:..StlNDS-;- IN· ..... · ............. SxlUll 1 YhRD WIDE .t'iLONG BORE LINES. - -- ------
------,-fv2IClliTop-BEffi--1 . y"Q..L-U-1!I~ __ ~T2i~-==-r_-:b_v E lLAG E LlLIOR NE§=-J: . ( ----I ~UNld . .i~L CONCEN- I MI:NERhL-BE;~RING I OVER- 1. MlNERAL-BEliRING~OVER- . ~:;'VERA.GE GRADE OF lVIlNERriL-
LINE b.T.d.t;'~'E &"J'JDS I BURDEN ± ., S.l:~I\lJ)S BURDEN ( ( .' BEARING SfdIDS. T.JiLlJ!. T'B.-=--L lTh~LE C.r::-TTTABLE D:;:r _:::IT;.BrB·l=_:::.... (TT.BLED:T t LBS;" OF HEAVYMlNEIlAL .CON-
3
T -B8.. I TOWS- I CUBIC YDS. -roUBIC YDS. I FEET INCHES. '. FEET INCHES CENTRATE PER CUBIC YARD.
~~- I :~B.G=T--= r--::-"· J-sa --1-;- 0 ---~ -: -1 1903.--;-- --2 if 1742.5 I ,I 1.42 • I . I 0 3 I 12!11 -
! I AH'lIt1mX 1: I I A11'.IimllX 1, -
13.0545.4 I 21.4 I NOD ,. 1 0 I NarE I I AT I I AT i-I -----
4 6;6 •• 85 I I 0 1.5 .r I I 1074
------~f------~-----+----------.-rf ~ L I T~ 1-------------5 I 4.4a3 I 3.113 I OII!rAllLB D. I 0 6 JJ I at i'ABIS D. I 1327
---,---~I'-~-M-.-6-+----~1---------41 I. f 1------------6 I I I 10M I IOU I I 1196
-TABLE 2. (b)-. ----
r ~1.Brr G.T- + tTABLE C. TABLE D;J :Cr:nu:E::q:;:t==- -1~i~BLE l1I: LBS:' OFHEAVYMI . , "
B~ .. -j'-TON"S - -CUBICy~ I" 2.!§.!2.. ~.§ .. I FEET INCHES FEET ' INC~ CENTRt1TILEE-E CUBlQ
=:--I:.~&.oT~'08· r-:: .t= ... ----.......-----
I I I NU J o· lO.5ff Nil. 2OS.0 ,
I ,. ~
LINEa ~, 867.21 8.42 121.6l. ml 5· ??ft I Rtl. 155.l. J I II
,.- I I I I -ml..
I ! LlNE3 ' 21,169.4 9.45 112.91 See Appmd.. 2 I 4' Oft I see Apps:ulb:2, 127.4
I I f !'sUe D. a td l1"able D. am I Addond_to I Jlddmdmn to I Table B. . ' IJhble L
I I I I, II I I
I I I ----:-_'_____ J .. _________ -.--1 ___ 1 _________ , ____ J ________ , ________ _
----
--(
~arAL !fINERA.h' S1WI AND OVE!?LYIfiG SAli) •.
Data .tl'an!8b1. E6 2(a) aDd alb). / 'l'C1l'At. TONNAGES OF HEAVY MINERAL CONCENTRATE, VOLUMES AND AVERAGE THICKNESSES OF MINERAL
BEARINQ.. SANDQ..l~T]):OF OvERBuRlSE'N:;:::iili'i5AVERAGE-:9JyPSE OE..lVIIN]Rl~BEIi1.RJlJg:&INDS t _IN==: . STRIP 1 YhRD WIDE l~LONG BORE LINES. \ -- - -------- \
I I I I I I _J __ _ __ J -.L.__ __..l ____ ,_,-a...i. ________ "_
... ~
, ' 1 1-\
S 11.1 It. t. ;
TABLE 3. (a). TOtmAGES OF EACH OF TI-T~ REA VY .,MlNERALS -
ESTIMATEQ....EEOE PEHCENT~QE COtIPOSITIONS DETER}'.:IJ.llJ.m_BY GRAIN COUUTnra
EONNAGES OF t PERcENTAh:m c0w;osYTI5Rs ~--4OlrnAGE~~S~OF~H~EA~VY:;-;:-;:-M=IN=ERP=-r:_~L:;:":=S:-.-, -'~-, ~' ----.-AREA BETWEENI ' VY MTIffiRALM ° N D I :T E Z I R C Oli.l..R U T:rr:-E I L MEN' I T E i' cr A R N," E T I OTHER MINERALS _BORE LI!!mS, , ONCENTRATES. _ ,%.-1- TOlI1'S I Jb. [ONS I. % TONS % pON B , ~, ""TTONS,! Ef TONS _
I I, " , , , ',1' -TOl'AL'AREA (SlWl 0Ntf).
I
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II i I I I I ' i ! I I, I
I I I I 11
" II I I 'I' 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 1 I I I
I
SAND OVERLYLW SEAM. I .• ' ]
TABLE 3. (b). TONl:~AGES OF EACH OF THE IlEA VY MINERALS
!STIMATE~OE PERCENTAQE CO~.1POSITIONS DETER}':rnr~~ GRAnr OOUUTnrG
BETWEENI BORE LINES.
TO 1.1
TAL Al1EA. 1m 1 TO LINE 8
rrONNAGES OF IHEA VY MnrEP.AL PONC~.'TAATES •
,.
3.57? .1
f I
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I
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PERCENTAGE CO!lil'OSITIONS & ~ONU]~GES OF HEAVY MINERALS. M 0 N A ZIT E Z I R CON R U T.r L E iI L MEN I T EGA R NET
% TONS ~ !!::.ONS % TONS I lb TONS .~ TONS I
I I
I I t
I
I . I
33.1 ..
0.3 10.7 4a.?1· I'll 1.194~ a 1'1.0 I 6CS.1! 0.2 7.1 I I I
I I I I I
I
I . t I .\
,
I I I 1 , I I I I ! I r --- '- .. -
I j
I' •• 'O
I I I I
;
! I I I I ,
I I I I i ! I
I ·1 ! I I I . I I I
I I 1
I I I I I I I I I I \ I I I I , I I j , I I I
I I I
I I I ! I 1 I
I J
. .-..
OTHER MINERALS %
I TONS --
,
10.41 14.3
~ '.'
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i
I , . -. I
-.
I
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TABLE 3. (c).
AREA. BEiWEEN! ._~RE LINES.
TO!fAL .aREA. LINE 1 TO LI1lB 6.
SnAM
. -T OlI.L. MImBAl.SEAM AND. OVER lY.lm . SAND.
a
Data :rem iabl.&8 ~(a) am 3(b).
TONNAGES OF EACH OF THE flEA VY MlNERALS
ESTIM.A~OI:i PEHCENTAGE Cm.1P0,§1!IONS DETERj':TnrED_BY GRAn~ COUHTn~G
TONNAGES OF I . PERCENTAhE"co !IPOSYT'I6NS §:-40mrAGES O~ HEAVY MINERALS. aEAVY Mn~ERAL 1 M 0 N A ZIT E Z IRe ° N R U 'J:1 I L ElL M E IT I T EGA R N ~E=-,T",-+-__ O.::;;.;:THiiF'ER=- MlNERJi.LS
I ..1 I I ~ i 148.'1 !411.1· !3304 .lllS2,O !f.O. ~06 I 0.11 1.'1 2.5
i
" • 608.1.
I .
I
I oft 1'l51.6 , tf
I I I I -I I J
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! t
------- ......... _ ... ~I ' ... " .. -
3. I i ~ .1.2&8 j
14.0" I a UUn.4 I
I s 1 L2m.t5
9. I 1 lIaS. I·
13." a .1.tg58& I I
j
1&. 1 i 1,25.
I I
9." a 1.2630 s_ 3
•
1'- 1 PLAlI.
14,4:' • a I I.2lI32 I
lS. I
10.2" I .a .:L2539 I 20 i 1 !'r§fY.'I 1 12.9' 2 L254a i al. I. ~ I
I .l a 1L254e5 I I , ) • •
S J: A." ,gQ!!:J!£l!J~.§_OF.JiE~~~INERAJl,S IN~~CTED ,IN_BORJl1.§. ~ SlWl.
Q·O· iatg
6'9 l .. .;ltt,3.
7'3 18t g
0'0 ISt9 !
5t
' f 6'$
0'0 t 4'6
"'0 1&'0
I ?t6
I 5'3 5'&
oto 6"0
6'0 9t O I
0'0 6 t 6
6'6 V'S
,
I ! , I t
I I
l
am. 6IJ8
·2320
a38
1229
519
680
815
118
5'10
10'1.
am
1329
3Q1.
laUi
;
g~ 1604 .-
22.9 316
65.0 3480 , 9.0 • . 13&.
3V.6 615-
I ll.f J le
I 22.2 !
990 ... ~
143
4,5
f I I 34.0 2S
9.9 lf3&.
I 43._.' 138'1
11.1 195'1
J 41.0 9ft •
--~
I I
I I
-,
SlWL
SlU1L
SlWI. -
S'" SDa.
SBUt. .
---<
. APPENDIX.l '.L'J'.BLE E. ~ ... .. --- •. , - ~AQ ...... s
...
I S ,
1 .. I
'fallL FOR LID 11-i ..
ao5 JmB 2. 615 • g -:r TOl'AL FOB LISlI a.
LINE 5. . I 1:J58 - 3".5 - . S 12 to~. 1 JBom 1.5 CII:ll;fl.
13. I lJ32 • .. '.3 $' 1'. I $6 • l21.3 -3
1'to lS. I ~ - 1.81.&
J '(~l' ~). Tom. FOR LID~~.
1
I
4981:' I a
1 !
s :&.& .. WEIGHT OF MIl\TEJ1i'i.L IN 1 Yl-..RD STRIP ALONG BORE LINE .. --- ----- ------.......--~----........ --
(I'm sUt) •
,
~
102.15 I
I l.EB.& I
" 249.3 •
to.6
I
f
. .
-
1'1
8
33.z
12
53.:5-
. .
I 1
I
J
! t 1 I I t
eUi8.&
1,,41.5
1'142.5
1008.8 . .
S309.9
'l?lIJ!
l.Ot54S." -
liPPENDIX. -~---
"'-
'.1.'P.13LE • ,.P~ PAGK a.
I , I t
SEA II.
WEIGHT OF MTNEllAL IN 1 YIJtD STRIP ALONG BORE LINE" __ -.. _______________ " ... ____ 4 ____ 1 ____ -" ____ _
I I I
I t I I I \
. <
APPENDIX- . ------_i.t'_l' .. BLE _B. ~a" .. iii: ~a ~.
WEIGHT OF MIWdUI.L IN 1 YJiliD STRIP l .. LONG BORE LINE. .............---..........----....;...------ ---_ ..... -------_~___. _ ..-.-. . _ ...... _.......... __ __ .n,.,: ------ - -.... ------.-------------
-- ) ~BS. OF ~~IINERl,L PER I .li.VER;i~E LBS. WEIGHT OF, I ~~ixSOOiik WEIGHT OF .MINERAL BORE NOS., 1 s~. YD. i,.T BORE.- I MINERil.L PER SQ. YD. lUI. (YDS) In 1 YD. STRIP BE-___ _ _l----1JiliOM 1bIDtE 1\:'1 w _ Q1i LID mMtJitiDh _ .:- r---LEliQM...UBLE~..k..1- _J\~ .BQ.EES i..Ll1ID __ , __
,Wm ~. ,
88' I ;78 _ 381
Is
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VOL!JlYlE....iLNILti VE~E .'llli~1E s S-OJLMI~RAL-1LE.i:lUN~df.G BORE LIllE. ___ (.&Lorn BOBS I..INE.) urTTml' t'IP C!1IIAV __________ .______ _ _______ '
-- ~-~ ---~CKNESS IT;,BI.E 1;.. ~ ~~~ AREA. OF LONGITUDIN..'.L SECTION ~".CO~ RilliJLLINE. ORE NOo 1_ ~_BORE lAV. __ ,__ !I: __ !!r.tIBO Vr".B.1E ,1.. .....sMI ~ . __ .!lY...~E1G}J:'!".Q.(l.lliL~!llt.Q1L:Jl.:Q, iriB 1.--, 12CH}:;S '1IBQ..HEELI--EEEL ___ ~ET_~:.____ __9~-EE.ET ---':'-~S£t·-YD.s.'l.-··1t~]:1'iNCllES~YDJL.
BOze S. 24. I 11 I 1.0 ! 40 -I e ' 4. M 1.0 i 18.0 4.44_
B
LINK S. i I t i 1 I' i i J
BoH 9. 6 3 0.86 & 12'.8 1.42 0.25 i. 3.0~ " I 1.4 i . I ...
.. I , i I I l.INE 3. I I 'Bomb ....
I I I I I 15 1.:5
14 14
15
MAL
I
I
I I
M 24
18 12
- J i
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I
1.2
18
6
I 1.0
i 1.5 I i 0.5 I
1
I u I
M
I I 100 1m i
I ae I 18
I I 160 192 I
--1--- - .. ------ - --,-"_. --,------
2.'
I 16.9 t i 8.0 I
I 21.4
. -.. --.. -
I I
J
t
I
1.0
I· I I ...
I i l i I I J J ! I I 12.0 21..4.
I )
I
20.
I I "I I
I J
f
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II II I· I 6.1:) I 0.11 I 110 1 00.0 I 3.$ . 0.6 I 6.0 I 3.3
I I I I I I t I I I, 1
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t I I I I
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I 1
I -+- .-~ ---------1----- _ .... _--
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S 11: A. !Ie
Y:.QLIllY.lE....il.ml.~..:&E lli.I~~.-QlLMrJ.m&L-lLEiilimQ...~ e.LQlill BORE LlI:!E.
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II I I I f
! I! I I I I I '
I·
----------, ·-1-1 ........... .....,.· _ .......... _._----.. -.----------.-----.------------------------~-'- ---_ ........ _-
••.• _ • ~.~ ..... ~. ~-' ,_ •• - ____ •. , .--. -- "' .. ~.-----:--- _-·- ___ r __ ·~·_. -~... • ,.-~
MOST or tho saDd O't'E1rl.~ tb$ seam contabla mav minerals 1D snttic1ent qt1Ulttt;ies to ft1"rettf;, exploitation. Calc14at:bDS at 1;11& qo.antt.1ee of this .. d, and ot ihe be&V7 minerals contaSned 1n it at'8 gtren in Append1z 2.
BORE NO ..
I I
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I J'
I
I t I I I t I I I
I I J I t t I I
I I I I
VOLUME AND h.VERl~GE THICKNESS OF OVERBURDEN ;..LONG BORE LINE. ------------ ---------.........
I . i~ I
I 1 --------------.--------------~---------~------------ ----------- ------------------~
{ I I l
'.
I , I I
APPENDIX', TADL:ni. E. -----_ .... ----- ...
I I .. •
I I I 2 1'48.5 1.4 II I
I 6143.9
I ll.4
8 10546.4 I 21 •• I ,
I .
I smt '
5 10f.S45.' 21.."
I'
I BOB' S7l'D.f
f 11.8
• 896: • .0 0.:6 1I:t I I •• 696.0 0.8&
!rCP 2659.0 am 6 4422.0 3.33
I OJ'
Ii 4422.0 5.33 ... I
J I IfAllLE n. 5aee.3 8.4B
e 2.ll)4.6 1.64
I f I I I I I I I I II
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I
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OF
TABLE D.
S BAll.
£PENDIX.l..
--.-.----~---.. -------'-"""'!'------- -- siiiL ' BORE LIl'ES .( T.J.BLE l's. ) WT. OF HEAVY MIN •. CONCa .~ VOL. 'OF MINERAL-BEARING &VM
DESIG- IIIlIIl. DIS['ANCE !I AREA - Ij.V.PER"i'"YD. I TarAL BE-- I AV,:AREh OF LONGI- V.OL-BETWEEN"" NATION :i'm, .em }{~T\liEE,N I BETv'IEEN I STRIP TWEEN LINES TUDINAL . SECTION. BORE LINES.
1'17 Q,.lI'. ( TAB, LE E.1..=1:' ,I f'TABLE E.'. . -trH£·"~"" F : i on- -- -Ai\ii5 =-r ~ .L Y =: YDS..YD~. ~.!-Y]§..t 'LB.S. ~2\ TQN§_, ~~ --:-m. YDs. au. YDS.
~ms II' 13.3 ", I '. ,I I . - . , 67 i 1015.0 5100.5 152.5 2.9
~a __ ~~D~' --~--~I----~~--~--~--~-;----------Tr-------l
II 1'1 U3 151112•0 I 111.0&5.11 509.11 I 11" I llleS.l! 3 53.3
4: 20.0 11«0.0 1 . t I 2.08 .151.8 I I '13 2$$9.0 a&.a
5 2,0.0
3 U.2
1 I I 20.0 59
I I ,.
i , I i 5 20.0
1 I 99 l648 •• I 3288.3 I 145.3 2.48 245.5 6 13.3 I
Tal'AJ. I f I I , 11OllIW.'l 844.a 2540.6 f I I
I I I __ L-. L. --& -
-
VOL. OF OVERBURDEN A'V:7JlEA OF 1 VOL. BETWEEW-LONG. SECTION I BORE LINES. iTABLE E.), .t- _____ ___
_SQ. YD3. ' t GU~1J!s.· -_
I
I I I sa Bar,
Nt mp I or ~'I D.
t I I
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S :& A"!,
----- - . A •. --T- --- ---------. -------------------,-----~-,- " BORE LINES (TABLE F.) . I VOLU1IJIE (Tj~BLE F.) _' "I AVERAGE THICKNESS;
-;';SIGN.>;;;; . .' I iJ:r.F ~~ LlNEti~~~~BEt,RING~-=-~VE~ AII~AL-iiEAR~: OOiDS_L~ OvE~URDE~ ,
2, I .. I 1-------- .1
2. f- I I' I 3972.0 I J2S!!.a I ll.7"·
. ,3. t I I ·15: I !U68.8 • .. 600.8 . i SliB 1l.O~ J . SlI3
4. I I I :NOm. ,t t mm 4r. I Nt Art
I 14eo.O i'
149.6 3.6" 5. TOP TOP
i I
~ w
I 242.5 ., 5.3"
.1 I TABLE D. - - . .- " as L
_I 1Oa;'l.' ) 2536·.)1 8.9"
I I -II
I I I I ______ .,....-___ --IJI------~-.------_1 _____ ...,--___ --:*---'-____ --'" ___ - -----,-----to
-SEA IJ.
APPEND IX J,., ,T.t\:BLE H.' PERGENT./'"GE COMPOSITIONS OF CONCENTRATESAND WxmHlJS OF DCR OF mE BEllY SIHI!RAIS.
- fo. Fl'orn Table E.
LABORJi.TORY~TERM:rnAT10NS " ,', II '~ ..
,&': ;~fl¥BM6M~B'P.J'~W}J~t¥_'5 L.INE . . Zircon -1lfon. I Zir.' Rut .. , Ilrnen. Gar.', TOthers, Total Conc.;f Monazite Rutile 1 Ilmen. fGarnet t others
I ,- ' -
I /' I I ,
OOl:lJP)s1te
I r ~.40 't,(W A:rea..
14f
.V
' I, 8442 2.5 '1 4n•1 282.0 143.5 1.90 (Seam Onl,J'). , 0.3 33.4 1'1.0 0.:8 0.4
I
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SAND OVEIUnm SlUH. -QUANrITIES OF HEAVY MINERALS INTERSECTED IN BORES. -------------------------..- -
1694
326 .. ) ) SMl.
65.0
I . J I I ' I 0' I 'I' l35 I 3.5 9'6 I 1
I I I I J o~ I 6'6" I a'18 I 10.2 j laO? I 6'6" I 'I' I Ma I
23.1 I 331 I I I I I
St I a'3" I eSdO '13.5 . J 7a3 I ,"" I t . I
f I I I ,,~ I I I 0' I 6 t j 119 I 4,0 496
t J I I t - • I . I 0' 4' t;'9 '144
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SAID OVllH. Y.mG SlWL
APFEl\lJ)IX. B. TAb..L A. PAGll 8; ------ ---- QUANTI'l'IES OF HEAVY MINERALS INTERSECTED IN BORES. ------------------ ~ .. --
ll. 1 'I 1.2526 0 219 8.l. 1095 I lO.~ I -
I 1.252'1 5' 483 1'1.4 610
I I I I r ! 16. I 1 I 1.2)35 I 0 I a-g" 4t5 I 1.8 I ~3 1'1.'1- I ! J
I I J I 2 L2556 I atg- 9 99- 21t. 16.4 21.6
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-
APPEJ\T[)IX. 2. TAbJ A. PAGE 3. ----~- ---~
15.2' i 1 i L253'1 j
18. i 1. I 1.2538 I 10.~ ! I I I a iL2S»
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I - L2546 I
- j - - i 1.266' i I f L2M8 I - I - - I I
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QUANTITIES OF HEAVY MINERALS INTERSECTED IN BORES. -------._-------- -..-
0 ; " 0 I 5'3"
5'3" ! 5'6"
r 0 '1'&" I
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I -20.3 .- J 3013 I 34.0 869 -- SEAlI.
2.9 I 5f5 -. .'"
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41.7 1327 ---- -SEa .. _-
10.0 1840
11.1
41..0 978 --- SlWl.
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at 1IOl'k1Dga.
Seem at ",ark1.,.
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lil'PENDIX. I. ;J.'f.DLE,_:S. PJ.G:I 1. ----- WEIGHT OF MIW'.d?AL IN 1 YliliD STRIP I:"LONG BORE LINEo ------.....----- -------------
.- lSI I· s 'I ~ = a511 aao ·1 \
3 I· 440 I 50 '1333.3
4 IT·:n1l I'" I T I
, 8
8 Is • 2'15.3
9 \lfo ~.3 •
'9 45&.3 I 1369 • ,-10 I ~43 - 314.3 -
b
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.APPENDIX.' a. i.l'l'.DLE _ B. -----
--15
14
14 76'1 -3
PAGE as .
, I 15 I Low giade.
.. . . -
T~AL FCB LIN_
LINE 6 • • I 21 l840 - &.13.3 - -~
sa I 195' 653.3 -- -3
28 19B1 a- = 652.5
83 1313 r-' • QW.6
--sun ov.mrunm SEAM.
WEIGHT OF MIl\1ERAL IN 1 YARD STRIP l-',;LONG BORELINE~ -------------- ---------. . .
asS.6 w.e I 100 I 4000.0 - , .. =
a ,--I
21169.4.
1255.6 • eav.s so IM63.S a -3
J I I 1089,g • ~.9 I 50 9081..& -a
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.
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9 9
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·&l.U
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I 75.0
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75.0
_._----------_ .. _---------------------_._----------
\
B ORE NO.
L'LN&"I. 2 s 8
" lfa'AL
L:I1JR 2. 6 , , a
a 9
9 lO
TG'lJ.L
--'
......... . F2l9§:!llS (T;,m;,E ;,. •. l~ DIST;,NCE BETI~EN ;..HE.;, OF LONGITUDIN.'.L SECTION COMPLETE BORE LINE. . 1-1: BOl....i: I .i.\"'ERd.GE RE- BORES (T.I~BLE ;,.. ) BETv'\fERN BORES. ~RAGE . THICKNESS JVoLUl\IIE OF liDS
.t:Er---- . T'lIEEN..,]ORE'4--.------ ----~-- --- -----
- "' --I--------·--~ ---.-------.-----
TRIP
F: :§.!.._ REET -=1 __ FEET ""-- ..., l. ;§9Ui)!J!" }'EEL f1)"RE ~"rms . ;:.~ I .
O·ott 1 . . 1.. . .., ., ~
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a
II.PPEIIDIX -------
1.8
T<I!AL
LINE &.
PAGE !s 2. TABJJ)~ D. ------.-:- VOLUME AND AVEH.i·~GE THICKNESS OF OVERBURDEN ; .. LONG BORE LINE. ------.... ............ __ ::.:. _______ . ___ ..ao _~__.._ __________ _
..
Low gad •• r I .
I 10000lJIIIlII:II CNLi A'f Ilm>S (JJ1 !lOBE LlUlI.
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/
ADDEWtDI
CAISJOLATION C1I OVERBURDEN.
.As8UJ18 a CCIlStant1ll.dth or werbarden between ~1ne 3 ani line a, and between line 3 and line 6. '
Fmm Tah1.e D.
Area of longltud1nal sect1an. at l:llJe 3 • Average area at long1 tudinel section between Unes 3 and a, and between l1ll&s 3 and' 6 ..!:.! sq.)<is •
2
Tota~ length
VolUllle
III 990 te~.
990 -r .. '1\118 1s p1'Obabl,. too h,. a figure, dld 1IOU1d be reauc ell i:t
turtmr bor1X8 _~ done between lbs 3 aJd 2, and between lines 3 end e.
I I 70 3430.0 17'3'71.J. 2. 64.67 I i
J i 2. 64.67 103 1 7691.0 I 20018.3
3. 84.67
I I I 3. 84:.6'1
I 230 1357'0 20357.1 6 ... S3.33 I i
"1 I j 'lWAL I 24691 I I I
t J I 1 1 I'
t I I I
I I I I
I I L_--L" L. ...... , -- . I -
.. :--
IQ1&WElillfl' OF HEAVY:-.MlNE-BA~Q!ITTR!.~ 2 TOTAL_lliQ1'vlE....Q-E .... M .. U:§lli1kBEAR.lliQ SANDS AND TOTAL VOLUlVlE OF OVERBURNI:N BETvVEEN BORE LlNESft --------------------- ---... --
sg.8 9a. i •
I
I SER ~ D
~ 112)'18·8 I 92:> • .& U'1.2V -
AS) ADnamuM f .- t .. , 121&1301 2ll.3.9 93.9'1 TO 1J.'A13L E I 11.
t I
I 357'1.1 I 40619.8 I I I , I I
I I I I J
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~.
.
-liPPENDIX. 2. TJ .. BLE G • ..... - ---
,-- .-- BORE LINE~ ('I'11liIJ!: F. -;--T-"'·· - '--~L1JME (Ti.BLE F.) ---1- AVERAGE THICKNESS.
.............. 1--""--= ~-
-CUB~IC~Y~A~RD~S~----~-_ .............
,.
fa ......
I I I i f II .
I I __ -_-+-.1 ____ ._, .I ___________ ---'-l. ___ --------------,.----+
...
l~PENDIK.SJThBLE G. ........... - - AVERAGE THICKNESSES OF MINERAL-BEARING SANDS AND OF OVERBURDEN .. ~- ----- ~- ... - ~~-- ----- ........ --..
. - ~ ...
- - --T - --- - - ----- - ---- --1,·-- BORE LINES (TABLE r.) (I . VOLUME (TitBLE F.) . ~ rJ ·1 AVE.RAGE THICKNESS.
-;SIGNl';~;~' ~ . 11~ m.~ LINE~-=-MI~~~iliING~-=:'~RBu~ . MI~~~~_ ShNDS_' "-~ovE~unDEN · ----- · -:- r.--2QU~. Yi!~1 '_....2!@IC YA...'IDS ~ ~ CUB19...I£LRlli! t ~ET IN2HES. ~ r FEBT,.· INCHES
1 an'l 2. I .3430.0,· ,194.a ~l12S 6927.9 ' I, ,I ." , ~ :: 7l22.2 I 6· 2.7" I -I I - -I sa I«lI.'llSl an roms I '1691.0 J l2a8.2 plus 12,0"18.8 . . I I J: 13367.0 I fJH:B 5· 2.61f !PHIS
2 am 3.
J f Cou.nm: c CLtlI4N
.I! 13570.0 660.8 plus 149.6 plus 2U.5 I
I plus 21.,613.1 . ,.. APPENlU OES t APPENDICES
I" I - 1lI!.666.0.. I 1 .QiI 2. I 5' 0."'. 11 Am 2.
24691. 43,le5.a 5.2.0-
5 and &.
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I I APIfeD1Ut 2. rJ App;nd:1cea p. and 2. I I I /
I I f I . I J
-L t I I I I 1 - -- - ----------- ------------ - _ ...... -- -
-APPENDIX. a. ,Tl'i.BLE 1I .. PERCE!L.T.AGE C'OMPOSITIONS OF CONCENTRl'i.TES Am mea OF EACH OJ' 'is
BaVY JmBBALS .• . , . . 1:. From Table E. --LTI-\j-'E~-..o..r-. --LAB-O-RA----TO..;...R-Y--D-E-TEmOO:--Il-rn-A-T-IO-N-S--~[~I ~.;';;;"_";;;'IJi~~·;";;I--GH-';T---(.---) --O-F-M-;-JERA-L-~-" -·um---I-xR.Ii?-· -1HTt-. -il-.~-' ---.-l1ftk--. -_.
I Mon. fir. IRut'T
I
I IJlnlen" Gare rthers··t Total Gonc;;;l' Monazite Zircon I RutJ.lc Ilmen; rarnet I Othcr,,_
I
I
I
I
0.3 I 48.' 33.4 ," 1.,.0 I o.a 0.4 I" 3577 .I 10."
I . I II ..
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I
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I I,
r I I I I
r I
I
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1,4,.2.0 U94.S· 608.1 7.2 14.3
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#=
LOCALITY MAP
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