42D13NE MIDDLE FOX LAKE

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1 42D13NE MIDDLE FOX LAKE 010 ived 1973 GEOLOGICAL REPORT ON ASARCO CLAIMS GRAVEL BAY FLUORITE PROJECT SUNSET VEIN TOWNSHIP 87 THUNDER BAY MINING DIVISION -j DISTRICT OF THUNDER BAY BY ASARCO EXPLORATION COMPANY OF CANADA LIMITED TORONTO, ONTARIO NOVEMBER 1973

2 GRAVEL BAY FLUORITE PROJECT SUNSET VEIN INTRODUCTION This report describes the geology and mineral showings of the Sunset Vein claim group owned by Asarco Exploration Company of Canada Limited and covers claims TB , TB , TB , TB , and TB in the Thunder Bay Mining Division. This claim group is approximately two and a half miles west of the Pays Plat Indian Reservation on Trans-Canada Highway 17. The property may be reached by motor car from either Thunder Bay or Sault Ste. Marie. The property straddles Highway 17 and further access is provided by a communications tower access road branching off from the main highway. A geological reconnaissance mapping, silt and water sampling pro gramme was conducted during the month of July on a large claim group to delineate fluorite bearing areas. Then later in the season two grids were cut over two reduced claim groups to map and sample in detail the two most promising areas. The western most fluorite bearing structure was named the Sunset Vein. The grid covers the above claims with lines at 400 foot intervals from a base line 3000 feet long and was cut by Thorex Ltd. of Thunder Bay. TOPOGRAPHY AND VEGETATION The claims are located near the top of a large gently sloping hill which is dotted with many rounded-hummocky outcrops. There are numer ous small streams draining the property and a few lakes are scattered around the property. The hills are covered with glacial boulders and gravel till with isolated pockets of sand. The outcrop areas are covered with moss

3 - 2 - and numerous birch and scrub fir trees. surround the streams and boggy areas. Numerous alder patches TABLE OF FORMATIONS MAP UNIT ROCK TYPE Mafic Dykes Quartz -Fluor ite- Barite Veins Pegmatite Granite AGE Proterozoic? Archean GENERAL GEOLOGY The claim group is underlain by an igneous complex made up of two major rock types/ granite and pegmatite. This complex is cut by two types of minor structures. The earliest is a quartz-epidote veining and the later is a system of mafic dykes. Granite; The granite is a fine to medium grained pink rock which ranges in composition from a true high silica K-feldspar granite to a granodiorite. Many portions of the granite contain inclusions of mafic material that have been picked up and altered by the intruding granite. Some of these inclusions have a gneissic pattern which may represent a primary feature of the intruded rocks. Inclusions vary in size from a few inches to tens of feet in diameter. Some inclusions show sharp contacts whereas others gradational contacts. Pegmatite; The granite is cut by numerous narrow pegmatite veins comprised of quartz and coarse grained feldspar. The veins vary in width from a few inches to 2 or 3 feet and strike N70E across the property. The pegmatites have not been individually mapped, however there are large areas on the property that are underlain

4 - 3 - by coarse grained pegmatite-like material and these areas have been delineated on the detailed geology maps as "pegmatite". These areas probably represent coarse grained phases within the granite massif and since they differ texturally from the granite they have been mapped as a separate unit. Fluorite Veins; There are -umerous fluorite occurrences on the property. The majority of these are found on the surfaces of the joint planes, as films of purple fluorite cubes. This type of showing is difficult to trace and is not considered to be of economic significance. Three major fluorite bearing veins and a few minor ones have been located. They contain large granitic fragments cemented together by quartz, barite, and fluorite. The quartz is usually a milky variety although some cavities are lined with amethyst crystals. The breccia fragments contain epidote, giving the breccia zones a greenish yellow coloration on fresh surfaces. These fluorite bearing veins range from four to sixty feet in width and may be traced in one instance for a strike length of at least 3000'. Some sections of these veins are believed to have economic potential. Mafic Dykes; A series of north-east and south-west trending mafic dykes have been located along with a few north-west, south-east trending dykes. The former are narrow fine grained vertically dipping structures with minor sulphide mineralization while the latter are broad, medium to coarse grained diabasic structures, inclined steeply to the north-east and carrying up to 2 % pyrite near the hanging wall contacts. These sulphides are not significant economic minerals. SURVEYS The initial phase of the work done on this property consisted of

5 - 4 - reconnaissance mapping and sampling of water and stream sediments for fluorine analysis. The object of this work was to determine if the fluorite showings, seen in the rock cuts of Hwy. 17, could be mapped along strike for any distance and to locate new fluorite showings away from areas of previous work. It was hoped that the geochemical survey of the area would aid in locating new fluorite bearing structures. The results of these surveys were not too encouraging, however it was felt that more detailed work was needed before we could be sure of the true potential of the property. The reconnaissance geology survey indicated a series of isolated fluorite showings that.appeared to line up as a mineralized zone, each outcrop having similar characteristics. It was decided that a grid be cut over this area having a base line of 3000 feet with cross-lines 2000 feet long or extended to the claim boundaries, spaced ^00 feet apart and that this grid be mapped in detail. Similarily it was decided that another grid be cut to cover two other vein-like zones with 20' and 60' widths in the road-cut. This latter grid was 4000 feet long by 2000 feet, however since the bush was more dense and the terrain was rougher it was decided that the interval between cross-lines should be at 2QQ foot intervals. However/ at 400 foot intervals, the lines were extended to the claim line boundaries. The geochemical survey results did show some isolated anomalous areas. These anomalies were all believed to have come from known fluorite showings. Since no new fluorite areas were indicated by the survey it was decided that detailed geology was the best tool to use in prospecting for geology in the area. DETAILED GEOLOGY Sunset Vein; As was previously mentioned the western most grid was cut to cover a possible continuous zone of fluorite. Detailed mapping proved that this zone is continuous for more than 3000'. It varies in width from 4' to 44'. The zone is made up of a

6 - 5 - milky quartz vein which dips vertically and is flanked on the north west by a breccia, the matrix of which is made up of fluorite, quartz (milky), amethyst, and barite. Breccia fragments are de rived from the surrounding granites and have been altered by silici fication and epidotization. Fluorite grade is erratic throughout the vein. Due to the epidotization, fresh surfaces show a greenish yellow hue. Unfortunately, weathered outcrops do not show this colouration, thus making mapping of these zones difficult. Although the quartz vein is continuous there does not appear to be any consistant pattern with regards to mineralization in the breccia zone as assay values have been highly erratic. The assays do not indicate a mineable grade, however it is hoped that more detailed work will improve this picture. SUMMARY AND RECOMMENDATIONS A strike length in excess of 3000 feet has been traced on this vein with some encouraging assays, but work is necessary to determine the true nature and extent of this vein. This work-should consist of trenching, sampling, and pack-sack drilling. ^*~ ' **^ submitted, Eng.

7 49 000' 67045' FOR STATUS R^ER Td, PLAN t M.\ I935 \ i*i GRAVEL RIVER-M SO' 49000' AREA OF MIDDLE FOX LAKE TWR87 DISTRICT OF THUNDER BAY Buckotfoy TWR 88, 89 a AREA NORTH ^v 59 THUNDER BAY MINING DIVISION SCALE: l-inch 1=40 CHAINS LEGEND /o/" -..-s* ft l 58 PATENTED LAND CROWN LAND SALE LEASES LOCATED LAND LICENSE OF OCCUPATION MINING RIGHTS ONLY SURFACE RIGHTS ONLY ROADS IMPROVED ROADS KING'S HIGHWAYS RAILWAYS POWER LINES MARSH OR MUSKEG MINES CANCELLED c. TWFJ/88 FOR STATUS REFER TO TWP PUAN f'o aay CVJ CVJ LO CVJ l LU NOTES 400' Reserve around all lakes and rivers to Dept of Lands a Forests Land under water m Lake Superior withdrawn from staking by Order m Council dated April 30, < All lands within the Indian Reserve are controlled by the Dept of Indian Affairs m Ottawa X \VR 87 CO l MINING LANDS, DATE OF ISSUE NOV MINISTRY OF NATURAL RESOURCES 55' ' I 5IBZ47 l " - - -* *~ " ' l T" l l l l t SI924* l 54 *?. ' IB i TB i TB ITB M i VSt41 Nipigon Bay Sup t r tor L ^JBB94B *ISI(W j,,b bf BIB-110 RES N95I '30'i-1 TWP 86 S1ATUS RtFER TO TWP PLAN l 4b 052'30" NATIONAL TOPOGRAPHIC SERIES 42 D 13 PLAN NO. M O' MINISTRY OF NATURAL RESOURCES 42D13NFMie7 Z MIDDLE FOX LAKE SURVEYS ANb BKANCH

8 ND f /ne to medium graced cortto/n ing quartjt f- fejdspar, ana* minor ma f re nunerafs. Maf/c xenof/tfis are found tfie Grant te. a/ong ws&t gneissic / Med to coarse- pratned 'pegmatite w/cfe mass/re tsnrt* cut t/te aran/te, Quart} and p/apocfase are the major mmerafs ^ rnrnor m t/ S COW tt ffuorite. tfighty braccrated and a/brad w'n 4 'to Sharp contacts wit* granitic rocks - Ep'~dote is form ofa/terab'&n. fern carr/es fnttey yuartj inp/aces). a/nythyst., fiar/te and f/uor/te. J are after&a' wqu/ar p/ece s ofprartf&c ma6erw/ Quart? V"' l ^ - f/uorfa ve-... ~ ^f ~ -y*r~- IJJ^ -, ; X '. * ^ l * * i "A/ H -^wagr. - \; SYMBOLS ASSAV TA&L& /me. Cfarn post W r* Witsie s s post SAMPLE \VIDTHOF3AMPLE e' 13 8Uy)\ SIWSJ i i * ^ Scconctary road ' tfrg/iway 1 7 Stream J* Swamp (alders) Q. Mr'nor quartj ^^ Fault Theoretical geo/og/c. C'bs6f'ncd yeo/og/c contact \ "'"-** Outcrop, suboutcrop PV fyrtte, K f f Mineral //i, inc/in&d) (vert/cat. 7(62 i o. t? 40 Character sawp/e &4 O. GO fin GeAVEL RAV WKWiNCI O KITA BJ O OIUIICT NTI 42 D-I4- TOQONTO OFPICE DETAILED GEOLOG-V SUNSET VEIN GRAVEL BAY- FOJOeiTH PROJECT ICAll ^ 2CX5 MAWN SEPT. ATTACHMENT NO 4*- D -U.

Nickel Division - Sudbury Operations

* *-.. FALCONBRIDGE NICKEL MINES LIMITED Nickel Division - Sudbury Operations Falconbridge, Ontario 002261 GRAHAM 010 GEOLOGY OF TllE NORTH QUARTER OP LOT 2, CON. IV, GRAHAM TOWNSHIP, DISTRICT OP SUDBURY,