010 EXPLORATION POR LBAD 7BIHS INTRODUCTION

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31C12NEM57 6 3.2089 MADOC010EXPLORATION POR LBAD 7BIHSBANNOCKBURN AREA - SOUTHEASTERN ONTARIOINTRODUCTIONAB a result of a lead property submission by the writeran agreement covering exploration for lead veins in the Bannookburnarea of Southeastern Ontario was entered into on March 17i 1966,with Penarroya Canada Limitee. In particular, it was decided toexplore by geophysical and geochemical means, supplemented by ageneral structural study using air photos and aeromagnetic data,a six claim group adjoining the old Hollandla Lead Nine propertyto the south. Penarroya obtained a six month option to purchasethis group.lThe presence of a number of calcite-barite-galena veinsoccurring in the Precambrian limestone sediments of SoutheasternOntario has been known for over 100 years* A large part of thework on these veins was done 50 to 100 years ago. There has beenvery little exploration in recent years. The writer believes thatthere is a good chance of success in looking for an economic leaddeposit in the Bannockburn area if an adequate systematic exploration program is carried out. There are a number of reasons forbelieving this (1) the prevalence of lead occurrences in thearea; (2) the opportunity to use modern techniques and equipment;(3) the economic possibilities suggested by the presence of associated silver 0 An analogous situation exists in the Northernpart of Portugal. After many years lying dormant mining hasrecently commenced on the Terramonte vein. This vein consists ofa vertical quartz-filled fissure containing 4# lead, 3# zinc, and6.0 ounces of silver per ton in a series of lenses. Stoping widthis held to 3 feet. The Terramonte vein has been known for overa century. It was partially mined to a maximum depth of 150 feetbefore 1890. Placer Development and Noranda Mines are two of theoperating partners.The present work in Southeastern Ontario, as described inthis report, was carried out at intervals over the past season.Some additional work is necessary to provide adequate informationfor evaluation of results.

- 2 -PROPERTY DETAILSThe property covered by the present detailed surveys isabout 140 miles by highway north-east of Toronto and almost anequal distance south-west of Ottawa. It is in the SoutheasternOntario region. It is readily accessible by Highway No. 62 adistance of 11 miles north of Madoc plus 2 miles of gravel roadtransects the property.The group consists of 6 contigious mining claims numberedEO-32372 to 32377 recorded Feb. 14, 1966. This group is locatedin the north central part of Madoc Township, Hastings County.Por clarification concerning property details and locationrefer to accompanying sketches"Property Sketch" and "Key Map",HISTORYIn Southeastern Ontario the principal producer of lead wasthe Kingdon Mine which, before ceasing operations in 1931 t produced over 60,000,000 pounds of lead from a 5' wide vein with anaverage grade of about 8.5# lead. Other producers of lesser extentwere the Front enac, Ho Hand ia and Long Lake Mines. All of whichare the fissure vein type of deposits with the possible exceptionof Long Lake Mines. The Frontenac Lead Mine produced 39*000 poundsof lead in 1916-17 from a 12' wide vein averaging somewhat inexcess of 4# lead. The Hollandia produced 2,700,000 pounds oflead from a 4' wide vein averaging 6# lead, in 1905 to 1906 and1916. The production from Long Lake Mines was principally zinc.The present work is mostly in the vicinity of the HollandiaLead Mine but takes in a general area about 6 miles in diameterwhich includes a number of lead occurrences 0 The most recentwork in the area consisted of a limited diamond drilling programby Teck Exploration on the Hollandia property, in the shaft vicinityonly, in 1956. The Hollandia vein was traced for a long distanceon the surface and was developed for a length of over 400 feetby four shafts ranging in depth from 50 to 132 feet, very shallowby present day standards e

- 3 -GENERAL GEOLOGY IN RELATION TO LEAD VEINSPrecambrian sediments, primarily of limestone composition,underlie the south-west quarter of Tudor township and part ofthe south-east quarter of Lake Township, also immediately to thenorth of the village of Bannockburn near the north boundary ofMadoc Township, in Southeastern Ontario. According to recentgeological compilation* these sediments form a basin-likestructure roughly eight miles in diameter, folded in the formof a syncline, the synclinal axis extends in a sinuous mannerfrom north to south and plunges to the south* It appears thata number of lead-barite-calcite veins formed in tension (primarily)fractures at right angles to the axis of synclinal folding. Thisis similar to structural conditions indicated at the ViolamacMine in the Slocan district of British Columbia. Here " orebodiesformed in the axial regions of folds, in tension fractures thatcut the fold axes almost at right angles".** The Violamaclead vein was located in calcareous sediments and had an averagewidth of 2 - feet. There are no figures on grade of ore.Genetically, there is a strongly suggestive relationshipof the lead-barite-calcite veins of the Bannockburn area togranitic cupolas in the immediate area surrounding the sedimentarybasin structure. Essentially, all metals are zoned about summitcupolas. Some veins change in composition as they are followeddownward or toward the cupola, in the order from lead to zinc tocopper.*** The relatively aaall size of these granitic massesor cupolas indicates the most favourable stage of erosion of thebatholith for exploration. Refer to sketch *Bannockburn DistrictLead Occurrences'1 . It should be noted that in the general regionto the west erosion has reached a stage where the barren core isexposed and very little sulphide mineralization is foundoA study of stereoscopic air photos indicates a strong faultor fracture system connecting the Gawley Creek granite cupola,near Bannockburn, to the Hollandia lead veins. Refer to sketch"Geological Structure from Air Photos". Preliminary work showsthis to be the case in regard to the Catherine Lead Mine also.These structures are partly indicated on Ontario Department ofMines geological maps of the area. They could have providedchannelwaye for the mineralizing solutions which formed the leadveins.The principal features indicated from a study of air photos(see sketch) are: (1) prominent north-south trending linears*Lumbers, S.B., Pig. No. 7 Bancroft-Madoc Area, Ont,, Dept of Mines,1964.**Ambrose, J.W., Violamac Mine, Slocan District, B.C., StructuralGeology of Canadian Ore Deposits - Pp.88-95 - Vol. II, 1957.***Emmons, W.H., On the Mechanism of the Deposition of CertainMetalliferous Lode Systems Associated with Granite Batholethe:Ore Deposits of the Western States Pp. 327-349 - A.I.M.E. 1933*

- 4 -representing bedding in the limestone; (2) weaker linears atright-angles to the bedding representing structures thought tobe associated with lead-bearing veins; (3) a prominent linearrepresenting the limestone-andesite contact; (4) some transverselinears of unknown origin.A study of aeromagnetic contours (Refer to sketch "Aeromagnetic Contours") indicates the greatest thickness ofpredominately limestone sediments to occur in an area just tothe south of a line connecting the Hollandia and Katherine leadveins. A point to note is that the most prominent known leadveins occur in the vicinity of the 800 to 900 gamma contours,along with a number of lesser occurrences.A number of lead occurrences of various degrees of interestwere located and examined in the field and are shown on thevarious sketches accompanying this report.GENERAL GUIDES TO EXPLORATION FOR LEAP - BANNOCKBURN AREAThe present work consisted primarily of a detailed geochemical soil survey supplemented by a ground magnetometer surveyover a six claim group covering the strike of the Hollandia LeadMine to the south. Other methods used in the present work areitemized as follows:(1)Compilation and analysis of available geologicaldata(2)Study of structures from air photos(3)Study of the distribution of lead occurrences inthe Bannockburn sedimentary basin(4)Correlation of lead occurrences and structure withaeromagnetics

- 5 -PRELIMINARY DETAILED EXPLORATION - "HOLLANDIA" GROUPGrid: A grid system was established to cover the property withpicket lines at 400 foot intervals at right-angles to the strikeof the Hollandia lead vein along its projected extension to thesouth-east. Pickets were set at 100 foot spacings along alllines.Geochemical Surveyt Soil samples were taken at a depth of l footwhere possible and at a maximum spacing of 100 feet along all lines,Sampling covered the entire property except in a. few marshy areas.Additional samples were taken in anomalous areas throughout.Tests were made of each sample for cold-extractable total heavymetals (zinc, copper, lead) by a modified "Bloom" method usingammonium citrate buffer and dithizone. Colorimetric estimateswere made of the total heavy metals* This method is more sensitive to zinc than copper or lead. Zinc is also more mobile butits mobility is reduced in a calcareous environment such as this*The veins sought are known to contain predominantly leadwith sometimes associated zinc and possibly very minor amountsof copper, in the form of galena, sphalerite, and chalcopyriterespectively.The results of the geochemical survey outlines irregularcold-extractable heavy metal anomalies along the projected strikeof the Hollandia lead vein to the south-east. As the lead inthe veins occurs in irregular "pockets" and lenses there willbe no anomaly if lead is not present where a vein suboutcrops.Thus it is quite possible that an anomalous zone will be farfrom continuous as in the present case.In order to obtain more conclusive data some additionalwork involving analysis for "total" lead following a hot 25#nitric acid digestion should be carried out on a number ofsamples in the anomalous zones.Magnetometer Survey; A magnetometer survey was carried outwith a Sharp Model MF-1, fluxgate magnetometer over all lines at50 foot intervals, and the results contoured. There was somecorrelation between high magnetic trends and total heavy metalgeochemical anomalies.

HOLLANDIALEADMINE Vi4Concession9V!EO - 32372EO-32373EO-32375Lot32Lot31EO-32376EO PT.1966

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- 6 -PRESENTATION OP RESULTS OP GEOCHEMICAL ft GEOPHYSICAL SURVEYSThe contoured results of the Geochemical Soil Survey andMagnetometer Survey are shown on Maps 637-A ft 637-B respectively,in the pocket of this report at a scale of l" 200'.CONCLUSIONS ft RECOMMENDATIONSThe results of the present work are promising but inconclusive. A limited amount of additional work will be necessaryin order to form definite conclusions. Specifically, analysesfor "total" lead in anomalous heavy metal areas should be carriedout and the results interpreted and correlated with the presentwork. Also, the silver content of the lead veins should be investigated by assaying samples from the Hollandia for comparison.Appreciable silver could have a substantial effect on economicpossibilities of lead veins. The Katherine lead vein, in thisarea, was said to average 10 oz./ton silver.The above work including sample analyses, assays forsilver on lead ore, and report with interpretation, would costS 500.Brighton, OntarioSeptember 24, 1966Campbell Pox, P. Eng,

/ftt T/l l\ \\BANNOCKBURNDISTRICT LEAD OCCURRENCESHASTINGS COUNTYSEPT. 1966x-SOUTHEASTERN ONTARIO eoL09t F no* M*r USTI. OUT. Df n.or M IN

TudorTwp. (M. 156)VJTHE TOWNSHIPGrimsthorpe ARIODIVISION\SCALE'l- INCH * 40 ATEDLANDLoc.LO.M. R. O.S. R O,LICENSE OF OCCUPATIONMINING RIGHTS ONLYSURFACE RIGHTS ONLYROADSIMPROVED ROADSKINGSHIGHWAYSRAILWAYSPOWER LINESMARSH OR MUSKEGMINESNOTESThis Map I s Not To B e Used-FOR SURVEY P URPOSES400' SURFACE RIGHTS RESERVATION AROUNDALL LAKES AND RIVERS.Marble Reserved under section 42 of MiningAct for areas marked thus : vy,. ' /viip FOK-GHECKlNCi lY M tfrHNiftLD.i t*LiO)00T OF MlNt.LANDS Bk,fjQ.DATE OF ISSUEFEB 4 1967(DJVJLUONTARIO DEPT. OF MINESPLANHuntingdon Twp.(M.106)Twp3)Hungerford Twp.(M. 105)N O.-M.I20DEPARTMENTOF— ONTARIO—31C12NE0057 63.2689 MADOC200MlfJES

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After many years lying dormant mining has recently commenced on the Terramonte vein. This vein consists of . J.W., Violamac Mine, Slocan District, B.C., Structural Geology of Canadian Ore Deposits - Pp.88-95 - Vol. II, 1957. ***Emmons, W.H., On the Mechanism of the Deposition of Certain . MINING DIVISION \ SCALE' l- INCH * 40 CHAINS LEGEND .

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