1. Location, access, topography

Transcription

1 1. Lcatin, access, tpgraphy i ' S S\ l i Eby Twnship Larder Lake Minin Gelgical B Prvince f C ^aaeiseaaas EBY 010 The claim grup is lcated in Lts 7,8,9,10 and 11, Cncessin 5. Bby Twp. The prperty is accessible frm a tte rad that fllws the fifth cn cessin line westerly frm the Eby Twnship rad. It is als accessible frm the suth shre f Kengami Lake, a distance f ne quarter t ne half mile. Much f the surface f the claim grup is flat and swampy. There are a number f lw gravel ridges extending sutherly frm the nrth bundary* Elevatin f the utcrp areas des nt exceed 100 feet abve the swampy grund* 2. Owners, claim numbers, survey data The claims are wned by, and the wrk was perfrmed fr, the Dminin Gulf Cmpany, 3 Bay Street, Trnt. There are thirteen claims in the grup numbered L-5759& t L inclusive. The survey was rad e by C. G. Macintsh, Kirkland Lake, Ontari, assisted by D. Sprague, Larder Lake, Ontari and R. S. Savage, Swastika, Ontari. The wrk was perfrmed between May i/th. and June 7th,, Observatins are related t picket lines ut in a nrth directin at ft intervals and marked by pickets at 100 ft intervals. The picket lines are tied t cncessin and lt lines. 3. Tabl e f Frmatins Matachewan Diabase Dike-s Algman Basic Syenite Timiskaming Greywacke, argillite Cnglmerate Tuff (trachitic agglmerate) Keewatin Gabbr - (sins?) Andesite - pillw lava k. Descriptin f rck types Diabase ; Matachewan diabase dikes intersect the lder frmatin in a nrth t nrth easterly directin. They are fine t medium grained and massive. gaej,9 Syenite i A few small expsures f basic syenite were bserved* It is medium grained, massive and reddish green in clur. It is cmpsed f reddish feldspar (6C#j, pale gren ferrmagnesian (augite?) (4550 and bitite (550. It ccurs in narrw dikes r lenticular bdies striking nrtheasterly. Cnglmerate t Timiskaming cnglmerate and medium t fin* grained greywacke were fund in diamnd drill cre at the site f a drill hle n claim L The cnglmerate cntains pebbles f aany varieties, including jaqpar

2 - 2 - Ore*.eke. Cnglmerate nt'd, up t abut 3 inches In diameter. The greywacke is greenish grey and cntains grains f jasper and quart in the medium grained hrins. Grain gradatin indicates that the tp f the beds face suth (tward the cllar f the hle). JjlfXi Expsures f trachyte agglmerate r tff ccur n claim L It cnsists f angular t runded reddish fragments in a reddish green matrix. Light clured feldspar crystals r fragments are prminent. Trachyte fragments are usually less than l inch in diameter. Andesite, gabbri The Keewatin frmatins cnsist f fine grained, medium green pillw lavas. The lavas are interbanded with carser grained, medium t dark green frmatins which may la sme instances be a carse grained phase f a flw but cntact relatinships n sme expsures Indicate that they are intrusive. Pillw structures indicate that the flws strike nrthwesterly and that the tps f the flws face tward the suthwest. The carser grained frmatins cntain thin stringers f magnetite and hematite. The dip f the flws, thugh nt definitely established, appears t be steep tward the suthwest. 5. Structure The rck expsures are In general massive but there is evidence f faulting r weak shearing n claims L and The apparent ffset f a diabase dike n claim L indicates a prbable fault striking in a nrtherly directin. 6. Mineraliatin, Alteratin Th rck frmatin n claims and L have been carbnatied in the vicinity f weak shears r faults. Occasinal narrw quart stringers are sparsely mineralied with pyrite. 7. Summary f Wrkt Wrk during the present year includes i line cuttingj a grund magnetmeter survey and a gelgical survey. The cllars f six diamnd drill hles, drilled by frmer wners f the claims, were lcated. Drill cre was available frm nly ne f the hles. /d June 21, 1952 C* G. Macintsh

3 Dminin Gull Assessment n Grund Magnetn isaetseesas'ea.aireby ' O2O Eby Twnship Eby Twnship Larder Lake Mining Divisin Prvince f Ontari INTRODOCTION Thirteen claims, in lts 7 t 11 inclusive cncessin 5, Eby Twnship* Prvince f Ontari, were staked by the Dminin Gulf Cmpany in July 1951* Rck utcrps are numerus in the sutheastern sectin f the claim grup, but very rare in the nrth and west. Previus hlders f the claims have drilled several hles n the prperty, mainly in the utcrp area in the sutheastern sectin, althugh ne lng hle was drilled near the western bundary f the claims. Interest in the area is related t the lcatin f the Larder Lake "Break* as interpreted by Jas. E. Thmsn, a Prvincial gelgist* A grund magnetmeter survey was prpsed, its purpse being t delineate the gelgical structure in the area, with particular emphasis being placed n the lcatin f the Larder Lake "Break" and any subsidiary faults in the claim grup. Since by far the greater part f the claims is cvered by verburden, it wuld be extremely difficult t recnstruct a structure map f the area frm gelgy alne. The presence f individual rck types, having varying amunts f magnetite assciated with them, suggested that a grund magnetmeter survey might prvide sme f the infrmatin required. An Askania Schmidt-type magnetic balance having a sensitivity f abut 25 gammas per scale divisin, was used in the survey. Basic cverage cnsisted f readings taken n picket lines 400 feet apart, using a statin interval f 100 feet. Where magnetic gradients were particularly steep, intermediate statins were added. In all, a ttal f 729 statins were bserved n miles f picket line. The magnetic data were bserved and reduced by a Dminin Glf Cmpany magnetmeter crew, and then transmitted t the Trnt ffice f the Dminin Gulf Cmpany fr further prcessing and interpretatin. The basic data, t gether with ismagnetic cnturs and interpretatin are presented n a map at a scale f l inch equals 400 feet, accmpanying this reprt. INTERPRETATION Gelgical mapping has indicated the presence f six distinct rk types in the area. Only fur f these rck types can be differentiated by the mag netic data; Keewatin andesite, Timiskaming sediments (cnglmerate and grey wacke), Timiskaming tuffs, and diabase. The Algman syenite ccurs in narrw dykes, and is nt reflected in the magnetic data. An additinal cmplicatin is the high degree f alteratin present. The eastern and suthern prtins f the claim grup are characterised by highly cmplex magnetics. Cnturing the magnetic data In this sne 10 very difficult since many sharp lcal anmalies tend t bscure the gelgical trend directins. Any number f cntur patterns may be develped, since the data btained frm the survey was insufficient t develp a unique system f cnturs.

4 H matter what cntur pattern is develped, hwever! ft harp discntinuity - exists trending nrtheasterly thrugh the lava series. Sutheast f the dis cntinuity many sharp lcal anmalies predminate, the verall effect being t lift the general magnetic level sme 300 gammas abve that t the nrthwest. Thus it wuld appear that sutheast f the discntinuity much secndary mag netite has been frmed while t the nrthwest little secndary magnetite has been added. A similar discntinuity exists between the lavas and the sediments, althugh here the magnetic level drpe nly abut 100 gammas frm the lavas t the sedi ments. The tuff hrin in the nrthwestern crner is indicated by magnetic values at abut the same level as the lavas. When the tuffs are altered hw ever, substantially higher magnetic levels are encuntered. A diabase dyke is represented by a cntinuus magnetic anmaly in the lava hrin, striking nrtheasterly. This dyke culd nt be interpreted if it were nt fr the infrmatin btained frm the Ontari Department f Mines Kengami Lake Area map sheet, which indicates a diabase dyke n strike with this mag netic indicatin. Several faults have been indicated as cutting the claim grup. In general, these faults are merely relcatins f faults interpreted by prvincial gelgists. Three main directins f faulting are shwn, nrtheast, nrthwest and nrth. The nrtheasterly trending fault is f cnsiderable imprtance. It is believed t represent the Larder Lake break in this area. The fault itself is represented by a discntinuity between the magnetic levels nrthwest and sutheast f the break. Immediately west f claim L-57608, the majr break appears t be ff set abut 800 feet t the suth by a minr nrth-suth break. The nrthwesterly fault is indicated by an interruptin f nrtheasterly trending magnetic events*, ne f which represents a diabase dyke. These in terruptins are s sharply defined that it is believed that they must be cut ff by faulting. In claim L-57606, west f a nrth-suth fault, the nrth westerly trending fault is represented by a sharp magnetic anmaly cutting acrss the sedimentary hrin. The ffset indicated alng the nrth-suth fault is vest side suth 600 feet. The mre easterly f the nrth-suth breaks is a cntinuatin f a break indicated n the Kengami Lake Area gelgical map. Evidence fr this break is nt particularly strng frm this survey, althugh it des appear t ffset a diabase dyke alng the nrth bundary f the claim grup. The mvement in dicated here wuld be west side nrth 0 feet, r abut the same as indicated by the gvernment gelgical map. N magnetic evidence exists that this fault ffsets the Larder Lake break by a similar amunt, hwever. The secnd nrth-suth break is lcated alng the western edge f claims L-57604, L and L The mvement alng this fault has been described previusly in referring t the Larder Lake break and the nrthwesterly break, as being west side suth sme 600 t 800 feet. Berth f the dal* grup this fault appears t be aligned with a tpgraphic valley indicated n the Kengami Lake area gelgical map. Tw ther breaks have been interpreted by gvernment gelgists In the nrth eastern prtin f the claim grup. N evidence f either f these breaks can be -2-

5 seen frm the magnetic data, hwever. This des nt suggest that the break* d nt exist f but rather that the magnetic data is Insufficient in this highly cmplex ne t indicate the faults as such* The grund magnetmeter survey has been quite successful in delineating several faults and cntacts between rcks f varying magnetite cntent* It is believed that this area is smewhat analgus t the Kirkland Lake camp, and that further wrk, prbably diamnd drilling is definitely warranted* -3- /de 3. H. Ratcliffe P. Eng.

6 APFEMDK "A* Areas f particular interest, which have been indicated by this survey are mainly cnfined t the western grup f claims. It is believed that a diamnd drilling prgram shuld be undertaken t examine several f the areas listed belw. These areas f interest, nt necessarily in rder f imprtance are: (a) The sharp lcal magnetic anmaly n the cntact between the sediments and lavas 100 feet suth f the Base Line n Line 52W. (b) The nrthwesterly trending anmaly attributed t a fault in claim L (c) The hrse she shaped anmaly in the sediments in the nrtheast cr ner f claim L (d) The anmalus magnetic highs suth f the sediment-lava cntact in claim L (e) Anywhere alng the pstulated Larder Lake break, in rder t prve r disprve its lcatin frm this survey. It is als suggested that a re-examinatin f the utcrp in the sutheast quarter f lt 10, cncessin VI, Eby Twnship, shwn as Timiskaming cnglmerate n the Kengami Lake Area gelgical map, be made. It is believed that this utcrp will prbably fall int the same categry as thse utcrps in the nrthwest quarter f lt 10, cncessin V, recently remapped as tuffs, r agglmerates. /de J. H. Ratcliffe

7 42A0ISE EBY 030 DOMINION GULF COMPANY INTERPRETATION OF DETAIL GROUND MAGNETOMETiSR SURVEY EBY TOWNSHIP CLAIMS GROUP I PROVINCE OF ONTARIO C. W. Faessler, March 13, 1953.

8 Dminin Gulf Cmpany Interpretatin f Detail Grund Magnetmeter Survey Eby Twnship Claim Grup I Prvince f Ontari. INTRODUCTION! A ttal f furteen claims were staked in Eby Twnship, Prvince f Ontari thirteen in June, 1951* and the nrthwestern mst claim in June, The interest in the vicinity was mainly due t its pssible lcatin n the extensin f the Larder Lake Break. The gelgical infrmatin at that time indicated Keewatin lavas, intermediate t basic in cmpsitin, striking nrthwesterly, with the tps facing suthwest; Timiskaming sediments, striking nrth 600 east; and diabase. An uncnfrmity was therefre indicated between the Timiskaming sediments and the Keewatin lavas. Tw fault directins had been established, the majr ne striking nrth 600 east and the ther being nrtherly. It wts als knwn that the Larder Lake Break generally fllws the cntact between the Timiskaming sediments and Keewatin vlcanics in the Kirkland Lake camp. A gelgical survey f these claims n 400' picket lines by the Dminin Gulf Cmpany gelgists, indicated that the five eastern claims were underlain by Kewatin vlcanics in varying stages f alteratins, and sme diabase. In the western crup f claims, tw utcrp areas were fund, ne f Keewatin vlcanics in claim L-57608, and ne described as Tindskaraing tuffs and carbnatied tuffs in the nrthwest half f claim L This utcrp area, n the Ontari Department f Mines Nap 19A&-1 (Kengami Lake Area), is shwn as Timiskaming cnglmerate, a diamnd drill hle dipping 450 t the N450W is reprted t have cut Timiskaniing greywacl and cnglmerate, with a few dikes f diabase and basic syenite. Lack f reslutin f the airbrne magnetics merely succeeded in blending the effects f the tw main rck types, lavas and sediments. Askania Schmidt-type magnetic balances having a sensitivity f abut 24 gamnas per scale divisins, were used in the survey. As a grund magnetmeter survey had already been made n 400' picket lines, readings were taken n 0' picket lines ver all f the claim grup, and n 100' picket lines n the eastern five-eights f the grup. The readings were spaced 100' apart ver lw magnetic gradients, the spacing being decreased t 50' and 05' where needed. The base statins f the riginalsurvey were used all ver s as t tie in bth surveys. The 400' picket lins were nt resurveyed but were incrprated int the final map. In all, a ttal f 2400 statins were bserved n 36.7 miles f picket line. The magnetic data were bserved and reduced by Dminin Gulf Cmpany magnetmeter crews, and then transmitted t the Trnt ffice f the Dminin Gulf Cmpany fr further prcessing and interpretatin. The basic data, tgether with ismagnetic cnturs and interpretatin, are presented n a map at a scale f l inch equals 100 feet, accmpanying this reprt. SUMMARYi It is knwn that the gelgical sequence, frm the sutheast t the nrth west is Keewatin lavas, uncnfrmity, Timiskandng cnglmerates and greywackes, Timiskaming tuffs. Due t alteratin in the frm f carbnatiatin, the Timiskaming- Keewatin uncnfrmity is nt defined accurately by the magnetic data. A ne f

9 carbnated rcks r "dlmite", striking NE-SW in the Keewatin lavas, is interpreted in the eastern blck f claims. Its extensin in the western blck is nt magnetically defined. It is suggested that the extensive carbnatiatin ends near the fault strikingsiightly east f sutheast which displaces a band f altered tuffs hrintally by 100' in a right-handed mvement. Tw dike-like features, striking NW-SE, with ne curving sharply t the NE, are suggested as being f syenitic material. INTERPRETATION* The crrelatin between magnetics and the different types f rck is well established due t the presencef utcrps f almst all types f rcks n the claim grup. Over utcrp, the Keewatin lavas appear as fairly high (3,000 gammas average, as high as 14,876 gammas), discntinuus and irregular anmalies, t feature-less magnetically, The Timiskaming sediments all appear featureless except fr the ne f altered tuffs in the nrthwest crner f the claim grup which is indicated by tw parallel superimpsed anmalies. The knwn diabase is fund t be nn-magnetic. Further nre, nes f carbnated rck, smetimes called "dlmite 1*, are fund half a mile east f the claims; these nes are expected t be magnetically featureless. Frm this crrelatin it is apparent that the interpretatin will have t be raade mainly n magnetic trends^ T *he five eastern claims are knwn t be underlain by Keewatin lavas. Claims L-57599, L57609 and L-57610, have a variety f trends with a slight prepnderance f the NW-SE directin. 'Aie nrthwestern half f claim L-57598, shws a definite trend N-S ending quite abruptly against a lw and flat ne which extends suth int claim L Althugh the nrthern limit f this ne is fairly sharp, the suthern ne is very indistinct in claim L The ne is interpreted as a main carbnatied ne, striking NE-SW, the suthern limit being based n a very elicit magnetic lineament, and the carbnatiatin extending sutheast in claim L with a gradatinal cntact with the lavas t the east. Diabase is knwn t exist in these claims but it des nt appear magnetically. The carbnated ne cannt be traced definitely int the western blck f claims. On strike with it are knwn recrystallied lavas in claim L These shw up magnetically as high parallel anmalies with a definite NW-SE trend. These anmalies stp at the nrthwest crner f claim L-57608, at a sharp straight cntact which strikes ENE and which becmes very indistinct befre reaching the eastern bundary f the western claim blck. T the nrth f this cntact, in claims L and L t L incl., the magnetics are quite featureless, but in the vicinity f the NE cmer f claim L-57607, slight indicatins f NE-SW trends are fund, which persist until the anmaly ver the altered tuffs Is reached. On the accmpanying map, a cntact is shwn where the NE-SW trend becmes apparent in claim L-57607, and is swung nrth t reach the nrtheast crner f claim L-5760A n the basis f the dike-like feature discussed later. This cntact wuld separate the ' imiskaming cnglmerates and greywackes frm the Keewatin lavas, r frm carbnated rcks. The lcatin f the cntact as shwn is based nly n slight indicatins f the NE-SW trend and culd just as well be lcated t the nrthwest in which case it culd jin up with the cntact shwn n the suthwest side f the fault, r even pssibly t the sutheast, althugh in this case it wuld be hard t explain the sudden thickening f the cnglmerates and greywackes. The cntact

10 -3- between the tuffs and the greywakes is lcated suth f, r is indicated by, the suthern limit f the altered tuffs. A fault is suggested by the apparent displacement f the altered tuffs and is shwn n the map as striking east f sutheast. Its suthern lcatin is mainly based n a magnetic lineament and a small carbnate ne, in the r eery stall! ed lavas f claim L The apparent hrintal mvement is right-handed f abut 100 feet, pssibly as much as 500', as indicated by the altered tuffs. It is suggested that the fault crrespnds mre r less with the westernmst limit f the area f extensive and intensive carbnatiatin t explain the apparent greater displacement f the magnetically similar cntacts shwn in claim L and L-57602j in ther wrds, the Timiskaming-Keewatin uncnfrmity, separating the greywackes and cnglmerates frm the recrystalllaed lavas n the suthwest side f the interpreted fault, wuld separate cnglmerates and greywakes frm carbnated rcks n the nrtheast side f the interpreted fault. The apparent displacement f the altered tuffs culd als be explained by a small fld which wuld be reflected by a similar fld f the Timiskaming-Keewatin uncnfrmity if this cntact were lcated abut three hundred feet t the nrthwest f where it is shwn in claim L , Tw magnetic features remain t be described. They are lng and narrw anmalies. One extends, frm the nrthwest crner f claim L-57606, sutheast halfway int claim L-57605, weaving slightly. The ther ne is lcated in claim L-57604, and is in the frm f an X, striking NW-SE and N-S, the nrth branch curving t the NE near the nrtheast crner f this claim, and the sutheast branch lining up with a similar anmaly in the suthwest crner f claim L Three pssible interpretatin are presented here; 1) Faults r shear nes v^ith magnetic alteratins. This seems imprbable, as the ne fault interpreted with this trend des nt shw any such alteratin* Further mre, there is n evidence f mvement r displacement in either case. Als, in the eastern blck f claims, wherei sme shear nes have been mapped, their main trend is E-W, and nne prduce a magnetic picture similar t the ne being interpreted. 2) Diabase dikes. The magnetic picture is such as wuld be expected frm diabase dikes. Hwever, diabase utcrps were mapped n the eastern claims, and appear t be nn-magnetic 0 Further mre, in the whle f the Kengami Lake Area (Map 19^6-1) and the Twnship f Teck (Map ), f the great number f diabase dikes mapped, nne trend in this directin. 3) Dikes similar t thse mapped n the line between lta 6 and 7 in cncessin VI, Eby Twnship, as Algman "Syenite, syenite prphyry, quarts-feldspar prphyry, alaskite". N bjectins are knwn, but als there is n evidence that such rcks wuld be magnetic. If the interpretatin f dikes, whether syenite r diabase, is accepted, thenthe sharp curve t the NE f the eastern dike can be interpreted as an indicatin f the lcatin f the Timiskaming-Keewatin uncnfrmity. This wuld seem t crrespnd t the uncertain cntact that was interpreted n the basis f the HE-SW trends. It wuld als crrespnd t the extraplatin frm the gelgy t the nrth and east as shwn n the Kengami Lake sheet (Map ) Attach i Map f Detail Grund Magnetmeter Survey, Eby Twnship Claims, Grup I C. W. Faessler Scale l" a 100' February 9, 1953

11 42A01SE EBY 040 DQMINIOH GOLF COMPAHT PETROLUGIGAL STUDIES EBI TOWNSHIP CLAIMS GROUP I PBOVINCE OF ONTARIO R. V. Jhna July 16, 1952

12 INTRODUCTION A petrgraphic examinatin has been made f the thin-sectins frm the Kengami Lake area including ur Eby twnship claims* Abut half f the samples cllected vere sent fr thin-sectin. 44 vere chsen as the mst representative. The -whle suite was nt sectined because f the time element required. N infrmatin has been derived frm the thin sectins vhih will alter the field classificatin f the rks nr change the mapping n the Kengami Lake sheet nr the mapping by Grdn Macintsh as he described it t me in the field. Therefre there is n need fr lng petrgraphic descriptins f all the samples. Only thse features which serve t shw the degree f alteratin in the rcks will be listed. GEOLOGY A band f Temiskaming sediments cntinues westward frm the Kirkland Lake area but with diminished width. It cnsists f a nglc rate verlain by a peculiar rk called) lally, trachytic agglmerate* These frmatins are nt tightly flded. The flded syncline f sediments is uncnfrmable with underlying Keewatin lavas vhih are mapped by gelgists f the Ontari Deparment f Mines as striking nearly at right angles t the sedimentary band (Kengami Lake Area, Map , Ontari Department f Mines, by Vra. Gerrie and J* E. Thmsn). A prminent band f faulting believed t be the westward cntinuatin f the "Larder Lake Break" ccurs principally in the lavas just suth f the inflded sedimentary band. Sme indicatin that the fault may be branching is shwn by quite heavey shearing at the cntacts, within the sedimentary band, and at the sedimentary-lava cntact. The heaviest shearing, hwever, appears t be in the lavas a shrt distance suth f the sediments. All f the sheared rks have been intensively altered* Lcally the alteratin has been especially intense and the rk has taken n a massive reddish appearance and is called syenite. FINDINGS As previusly mentined, n evidence was fund, frm the thin sectins, t justify changing the names r extent r any f the principal rck types - lava, cnglmerate, agglmerate and granite. Small irregular bdies mapped as lamprphyre and syenite hwever shwed gd evidence f being highly altered lavas in the case f the lamprphyre, and highly altered sediments in the case f the "syenite" frm the drill hle sectin*

13 -P*** 2 H carbnate nr 'dlmite 11 rks were included in the thin sectins as it vas quite bvius frm visual examinatin that these rck* were altered beynd uuh chance f recgniing the riginal cmpsitin* Thus it vas rather surprising t fine 40 t 50* f sme f the slides t be carbnate. A much greater extent t the carbnated ne is indicated than culd be distinguished visually. Sample N. B1002 R1006 B1011 I3L013 R10 KL022 K1032 KIOTO R1072 KL075 R1076 Br-1080 The lcatin f carbnate samples is aa fllwsi Lcatin and Field Descriptin 0* Nrth f V n M. Base line Vest side f lw utcrp in swamp 500' Nrth f 15400V. Carbnate stringers. Heavy carbnate at Nrth end f utcrp S n line V massive basalt 14-50* Suth f Suth end f line. Large utcrp* Andesite Trachytic agglmerate V n cncessin line 300' Nrth f drill hle Vest end f prperly Outcrp f dacite (Macintsh) just nrth f 3rd cncessin Lava frm Suth shre f Kengami Lake at base f pint Trachytic agglmerate Trachytic agglmerate Cnglmerate, sheared, at cntact with trachytic agglmerate Cnglmerate Cnglmerate Estimated % Carbnate 10* * 5* 30* * 15* 5* 5* * 15* 50* 40* *

14 Sample H. Lcatin and Field Estimated Descriptin - KL084. Lamprphyre 15+30S 26+30V 5S6 R1085 Lava, fine-grained 23*003 (t) n * 2O*OOLine ^ E1086 Carse diriti material frm same utcrp as R1085 R1045A Altered cnglmerate frm drill hle 3056 R1046B Highly cd tared cnglmerate 4* frm 40# KL046A near "cntact" vith syenite R1046C "Syenite" - 4" frm KL046B 60* In additin the fllwing were carbnate rcks and were nt sent fr thin sectin* R1005 Nrth side f utcrp near B1004 and B1006 R1015 2^4703 +OOW R1021 East side f trachytic agglmerate utcrps n cncessin line HW part f prperty near KL0 The trachytic agglmerate is a peculiar rck cnsisting f quarts and feldspar fragments in a hematite-stained matrix. The fragments are nt runded r fractured and appear mre like phencrysts than fragments. There is extensive carbnate which ccasinally penetrates a feldspar fragment but is largely cnfined t the matrix. There des nt appear t be any trachytic texture which wuld accunt fr the name given t this frmatin in the Kirkland Lake camp. Samples &10, B1072 and RIO?A are all frm the s-called trachytic agglmerate band and all cntain abut the same amunt (15-51) f carbnate* '1'his might suggest that 15 t * is a primary percentage f carbnate in this sediment. The very high (-40*) amunt f carbnate in the rather fresh lking cnglmerate sediments is unexpected, R1076-KL080. Mst f this carbnate is intrduced and extends the heavily carbnated ne int the sediments t the nrth. This makes it mre surprising that R1083 between these heavily carbnated cnglmerates and the heavy carbnate ne in the lavas t the suth, is nt carbnated. R1083 des cntain a mineral which may be epidte and may als be Aegirine, the sda pyrxene. Sme f the

15 - page ther nn-carbnated samples frm the area als shw this mineral* The significance f this mineral will have t await mre psitive identificatin by x-ray. If it is Aegirine, a cnsiderable area f sda metasmatism is indicated which is unique in ur present experience in being mre extensive that the carbnate ne. Grdn Macintsh was puled, in mapping, by the frequent changes frm fine t carse grained material in the lavas* The prblem was whether the different grain sies were indicative f different flws. Tw samples R1085 and R1086 were taken a few feet apart* There was n visible cntact between them nly a gradatinal change* The principal difference appears t be that KL085 has 2(ft carbnate. The matrix i* very fine grained but appears t cntain similar minerals t R1086 which is prbably a lava but is cmpletely recrystallied t a mixture f chlrite, amphible and the epidte-like minerals, mentined abve. If this is Aegirine it seems prb able that tiie carse phase f the flws crrespnds t recrystalliatin due t sda metasmatism and the fine-grained indicates carbnate metasma tism, Neither f the samples culd be cnsidered as indicative f the riginal rck. The fact that pillw structure has been nted in bth carse and fine-grained phases indicates that these rcks were riginally lavas* Previus peratrs n the grund had drilled a lng drill hle (10') in the sediments near the west end f ur prperty. The cre was stacked at the drill-site and sme interesting samples were taken. Three samples were taken 4" apart acrss the apparent cntact between cnglmerate and a reddish featureless bdy which Macintsh said appeared similar t many f the syenite bdies at Kirkland Lake. The cnglmerite 4" frm the cntact cntained abut 30# carbnate but the quart and feldspar fragments are nt affected. *here is sme develpment f Kalin-like shreds in the matrix. At the cntact the Kalin can be sen t spread thrugh the whle rck, the carbnate cntent increases and the quart and feldspar fragments are etched. Finally 8" away frm the bvius cnglmerate the rck is higly altered with abut equal parts f Kalin-like material and carbnate with scattered patches f quart (chalcednic) indicating the lcatin f the fragments in the riginal cnglmerate. Bather than syenite this is a replacement by ptash-carbnate slutins* Pyrite has replaced the magnetite in the cnglmerate. A similar rigin was suggested fr the syenites in the Kirkland Lake camp (Research Reprt, March 7th, 1952). there they are intimately assciated with re. Nne were nted in the surface expsures f sediments nrth f the prperty and nly a few narrw sectins ccurred in the drill cre. There may be a distinct lack n the prperty, f this type r replace ment s intimately assciated with re in Kirkland Lake. S much f the prperty is cvered that cnsiderable bdies f replacement *syenite" culd be present*

16 - page 5 The heavy alteratin in the lavas appears t mre clsely resemble the carbnatiatin in the lavas f the ^arder Lake area than the alteratin in the sediments f the Kirkland Lake area* A sample was taken frm an unidentified fine-grained sectin f the diamnd drill hle. This rck cnsists f 6056 albite, 15/C chlrite, and 2556 quart. AU the minerals appear t be recrystallied and n textural evidence remains. The albite may be secndary. If it vere an intrusive r replacement bdy the name albitite wuld be used. Under the circum stances it can nly be called a quarta-albite rck. MAGNETIC INTERPRETATION Nne f the slides shw a cnspicuus amunt f magnetite. There is mre magnetite in the carse lava specimens, ^ematite and sulphides are quite widespread and shw n particular preference fr the carbnated rcks* There des nt appear t be any reasn fr much magnetic relief in the area* In tlie sediments there is mre leucxene, pseudmrph after magnetite, than there is magnetite in the lavas* Thus riginally the sediments vere prb ably the mst magnetic. CONCLUSION The "syenite" alteratin typical f Kirkland Lake is present n the prperty in small amunts. The carbnate alteratin typical f the Larder Lake area is present extensively in the lavas. The prperty is within 'the metasmatic area which hwever, des nt extend as far as the granite t the suth. The prperty is thus near the suth west margin f the metasmatic area* Strng structural cntrl wuld be necessary t prduce re*

17 RSGISTKRKO Hr. H, C. Rickaby, Deputy Mirr" str f Mins, Ontari Department f Mines, Parliament Buildings, Trnt l, Ontari. Dear Mr. Rickaby: Enclsed with this letter I ara frwarding t yu a reprt in duplicate cvering gelgical and gephysial wrk perfrmed n 13 claims rncabred 1^-575^ t L-57^10 inclusive lcated in Eby Twn ship. On July 9, 1952 the first year's assessment wrk was submitted n these claims. It cnsisted f a grund nagnetie nap with reprt written by Mr. J. H. Ratcliffe and a gelgical reprt and map prepared by Mr. C* G. Macintsh. Assessment wrk credit was cnfirmed in the fllwing anvmts as a result f these surveys: Plain Number Gephysical Gel/la^ Ttal L Z J12-56 Ttal Man-days

18 Page Mr. H. C, Rickaby Ontari DBpartment f Mines Parliament Buildinga Trnt l, Ontari The grund magnetmeter survey had been perfrmed n lines cut Rt 400* intervals. In th fall f 195? we decided that cverage n lines at ' intervals was desireable and the additinal linecutting was started in Nvember* The field wrk was npleted in January, 1953 and the inter pretatin was carried ut in February end M*trch. We are submitting the new reprt end raps prepared by Mr. C, V. Faessler, a member f ur gephysical staff, fr additinal assessment wrk credit* Mr. R, V. Jhns, a raembsr f ur gelgical staff, spent 30 days during June and Jul r t n a petrlgical examinatin f rk samples cllected in the vicinity f ur claims. Twenty*tw samples were selected fr study f which 12 wre taken frm within ur claim bundaries. Mr. Jhns' reprt n this study is being submitted nw fr additinal gelgical assessment wrk credit. We are asking that 15 days 1 wrk be cnsidered as the sharp applicable t ur 13 claims. A breakdwn f the man-days required fr the wrk described abve with their assessment credit values is shwn in the fllwing Bchednlet Grund Magnetmeter Survey Actual Man-days Assess- Assessment ment Credit In Jfefrr Mafl-davs Lineutting (K. Klttilsn, C*ref) Instrument Operatrs and Assistants (E. G. Millnr, Chief) Drafting (C, W. Faessler, Supervisr) Reprt (C. W. Faeselr, Gephysicist) Subttal (Ptrgial Petrlgical Studies (R. W. Jhns, Gelgist) Reprt (R. W. Jhns, Gelgist) Subttal Ttal 186 U m

19 Page 3 Mr. H. C. Rickaby Ontari Department f Mines Parliannt Buildingg Trnt l, Ontari We shuld like t use the abve wrk credit t cmplete the 40 days' maximum allwance per laiia fr gelgical and gephysical wrk. Therefre, ve request that assessment credit be granted aa fllws n the bail* f this naw wrk nw beint; reprted j Number L-575 f.' Ttal CfqnhysiQal Gelgical 4 L, k k Ttaj, Yu will nte that a 14th claim, N, L-58757t appears n the gr\ind magnetic map and that the reprt actually is written t cver 14 claims, This claim was staked and recrded after ur riginal Magnetic survey was cmpleted and thus all data cncerning it were btained in the secnd survey. This claim was drpped n June 3, 1953, the first anniversary f the recrding date. I am enclsing a cpy f ur schedule A which accmpanied each wrk reprt filed with the Mining Recrder. This schedule shws the cmplete listing f the men emplyed n the gephysical survey and the dates d\irinfi which Jh wrk was Drfrmed Very truly yurs, ORIGINAL SIONIB W E. W. Westrick RSF/JV E. W. Westrik, Attachments fllw in this rders 1. Schedule A 2. Grund magnetmeter reprt written by C, W. Faeasler 3. Cntured and interpreted map f grund magnetic data, saale 100* t the inch 4. Petrlpjical reprt written by R. W, Jhns

20 Schedule A Lineutting Q. Bretl Q. Fryrak R. Hdgins E. Kittilsn Q. D. MHaughtn H. Nilan C. Smith NT f Pay, Jan r Febp Mar 1 Z X Grund Magnetmeter field Wrk J. H. Ratliffe C. W. Faessler R. Hdgins G. Breti 0. Masn Z. Q. Millar D. Peters R. McDnald V. Nichlls Z Z Drafting C. W. Faessler H. Riketts U. Arbanas J. Wilsn ntrretatin J. H. Ratliffe C. U. Faessler Rert The address fr all the abve persnnel is 3 Bay Street, Trnt, Ontari.

21 6&Y T WP.CLAIfVlS TWP -PROVUSCe OF ONTARIO ti A01SE EBY

22 9 Ci O nvj t ^s(t K l 00 ^"l c V ^ _Oi- J OOW,L. V ^/w L 1 r^ -TT,r ' f 1 t? II CD..s \ "O ' ft V; R ^^r O S -H fe ii fr ^? \.0 N ^ R -^ ^N O x ^ ^ r^ " ^N ^ * l " r\j ^ fe ^ ^ s. H vi O N ^ 5 ^: (n (^ \\ 2 H ^ X N Cx bs-?1? la S O S! ^V} N) x

23 ^ff-fkf.- sues*'' g*ti!f - --tf*- ' ' "' " ~ 1 ; i,, ^ 1^ S f C x0 fosx -lisa f LOT M^HMK^diMMiMft 1 ^ CD t 1 -J O f Vt c t i i s- 4- r- r 1 -J * t in (P (0 1 i -J -l CARBON O t t 1 tt t 1 1 O -f OJ t i j O * r 1 -i O O * lo 1 1 O t en CO O O i- c OJ 4. c- OJ ~ ID (M If) OJ i -l- CM r CM CJ (M OJ Li CD h- in LOT 8 LOT r O * OJ * 1. en i i O 4 CO 1 4 f * ID 1 i in ro CM 1 Bie Lin^O+00)... CON. VI -t ± B*t Lint (0^00) 1.1 -vi 5 JH? -f

24 J (l) DOMINION GULF COMPANY O) ix y -y x i/v/va/ BURT Jfrfl jr* l l J- L H 'f y /" Q m i. GROUND MAGNETOMETER'SURVEY EBY TWP. CLAIMS ' GROUP I PROVINCE OF ONTARIO Scale l"* 400' Date June 36, A01SE EBY S30

25 .;-.f -" ^as. LOT 9 v. t. V-. -,; v fr- - ^ ^ " "~. ^ ' CARBONATED ^JjfcJV^.*^--,.',-^-^-^'- ^rfe^^r?^ AS AND Cntact Fault LOT LEGEND Cntur Interne*/ / (?O Tie Line DOMINION GULF COMPANY GROUND MAGNETOMETER SURVEY EB.Y TWP. CLS - GR.l PROVINCE OF ONTARIO J j"- 'jn'^^lf^' *^-'t"^ G rey w -il,0 Cnglmeri Tie Line LOT l l t-**w8ftt.*4-ili*fe'^* *J -4*..' '' ~'--^--, ii^te^ld**"^ --"' r.iaa'.';" tf ~-*f'#-'fgtr?-*-"- e - 'v-'^/c

26 r- 42A81SE EBY 300 DOMINION GULF COMPANY ASSESSMENT WORK REQUIREMENTS

27 REGISTERED Hr. H. C. Rickaby, Daputy Minister f Mins, Ontari Department f Mines, Parliament Buildings, Trnt l, Ontari. Dear Mr* Rickaby: Enclsed with this letter I OB frwarding t yu a reprt in duplicate cvering gelgical and gephysical wrk perfrmed n 13 claims numbered L t L inclusive lcated in Eby Twn ship. On July 9 * 1952 the first year's assessment wrk was submitted n these claias. It cnsisted f a grund magnetic map with reprt written by Mr. J. H. Ratcliffe and a gelgical reprt and map prepared by Mr. C. G. Macintsh. Assessment wrk credit was cnfirmed in the fllwing amunts as a result f these surveys: Gephysical Ttal L Z Ttal Man-days

28 Page Mr. H. C. Rickaby Ontari Department f Mines Parliament Buildings Trnt l, Ontari The grund magnetmeter survey had been perfrmed n lines cut at 4-00' intervals. In th fall f 1952 \re decided that cverage n lines at 0* intervals was deaireable and the additinal linecutting was started in Nvember. The field wrk was cnpleted in January, 1953 and the inter pretatin was carried ut in February and Mnrch. We are submitting the new reprt end naps prepared, by Mr. C. V. Faesaler, a member f ur gephysical staff, fr additinal assessment wrk credits Mr. R. W. Jhns, a member f ur gelgical staff, spent 30 days during June and Jul -, 1952 n a petrlgical examinatin f rck samples cllected in the vicinity f ur claims. Twenty-tw samples were selected fr study f which 12 were taken fria within ur claim bundaries. Mr. Jhns' reprt n this study is being submitted nw fr additinal gelgical asessment wrk credit. We sre asking that 15 days' wrk be cnsidered as the share applicable t ur 13 claims. A breakdwn pf the man-days required fr the wrk described abve with the5.r assessment credit values is shwn in the fllwing schedule: Grund Magnetmeter Survey Assess- Assessment Actual raent Credit In Man-days Factr Man-days Linecutting (E. Kittilsn, Ch^ef) 186 Instrument Operatrs and Assistants (E. G. Millar, Chief) U2 Drafting (C. W. Faessler, Supervisr) 23 Reprt (C. W. Faessler, Gephysicist) _2 Subttal Gelgy (Petrlgical Wrk) Petrlgical Studies (R. W. Jhns, Gelgist) 13 i* 52 Reprt (R. W. Jhns, Gelgist) _2 Subttal 15 Ttal 368

29 Page 3 Mr. H. C. Rickaby Ontari Department f Mines Parliament Buildings Trnt l, Ontari We shuld like t use the abve wrk credit t cmplete the 4.0 days 1 maximum allwance per claim fr gelgical and gephysical wrk. Therefre, ve request that assessment credit be granted as fllws n the basis f this new wrk nw being reprted! Claim Humber Gephysical Gelgical Ttal L SI 3 24 Ttal Yu will nte that a 14th claim, N. L-58757, appears n the grund magnetic map and that the reprt actually is written t cver 14 claims. This claim was staked and recrded after tur riginal magnetic survey was cmpleted and thus all data cncerning it were btained in the secnd survey. This claim was drpped n June 3, 1953, the first anniversary f the recrding date. I am enclsing a cpy f ur schedule A which accmpanied each wrk reprt filed with the Mining Recrder. This schedule shws the cmplete listing f the men emplyed n the gephysical survey and the dates during which the wrk was erfrmed. Very truly yurs, ORIGINAL SION82) gf1 E. W. Westrick RSF/JV E. W. Vestrick. Attachments fllw in this rder: 1. Schedule A 2. Grxind magnetmeter reprt written by C. W. Faessler 3. Cntured and interpreted map f grund magnetic data, scale 100* t the inch 4. Petrl^ical reprt written by R. W. Jhns

30 Schedule A LLnecutting G. Breti G. Fryrak R. Hdgins E. KIttilan G. O. MNaughtn H. Nilsn C. Smith Nr. Dy P Jan fl Feb, Mar. Z Z Grund Magnetnster Field Wrk J. H. Ratliffe C. V. Faessler R. Hdglna G. Breti G. Masn E. G. Millar D. Peters R. McDnald W. Nichlls Drafting C. W. Faesaler H. Ricketts U. Arbanaa J. Wilsn Interpretatin and, Reprt J. H. Ratcliffe C. W. Faessler Z Z The address fr all the abve persnnel is 3 Bay Street, Trnt, Ontari.