G. A. Curtis J. Gaudry D. McDonell D. Grahnti H. Sarsfield ]). J;araKin C, Granger A. Martin P. Tellyhoe. - Project Manager

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1 i REORT ON AIRBORNE GfcSpllYSICAL CARSCALLEN TOKSHJf AUKA, ONTARIO...,...,..,,,,,,..,.,..^-.,^,....^...,-...,... MKFI MlMRS LTD. ik3 J?v3 1?AC5NE035e CARSCALLEN 0 10 This report pertains to the combined airborne EM and magnetometer survey flown on behalf of Mespi Mines Ltd. over a block in Carscallen Township, Ontario. Tho survey wae performed March 7, 1965 by the Canadian Aero Mineral Burveya Limited geophysics l ly- equipped Otter aircraft (registration C-JGM) based at Lines v.'ore flown east-west and wore spaced at 1/8-mile interval!?. The noan terrain clearance of the equipment during purvey was etpproximately 150 feet. The mileage flown in this area to tain 33 lino miles. Canadian Aero Mineral urveys Limited personnel associated with thie project wore as follows: G. A. Curtis J. Gaudry D. McDonell D. Grahnti H. Sarsfield ]). J;araKin C, Granger A. Martin. Tellyhoe - roject Manager - ilot ~ Navigator - Operator - Mechanic - Data Compiler - Draftsman - Draftsman - Data Chief T.hc project was supervised by A. R. Rattev?,. Eng., author of thio report. 1.

2 The KM data and all magnetic anomalies in excess of 100 gammas are plotted on a plan map at the scale of l inch equals 1/4 mile. An airphoto laydown provided the base for this map. Appendix I ie a complete listing of all EM anomalier. detected. Appendix II describes the equipment, the records, the survey and map compilation procedures, and the data presentation system, II. GEOLOGY The Ontario Department of Mines preliminary geological map 118, published at the scale of l inch - l mile, gives a generalized picture of the western third of the survey area. The survey covers the east-west trending contact of basic volcanic rocks to the south with a vast area of basic intrusive material to the north. Some acidic volcanics are indicated in the north-central part of the block flanked by an acidic intrusive to the north. North-south diabase dikes are prevalent. ill. RESULT^ Three zones of bedrock conductivity have been located by the airborne EM survey. Two questionable EM anomalies are also plotted. Eone l contains extremely strong EM response directly associated with strong magnetic highs. These characteristics 2.

3 indicate a substantial occurrence of maeeivo sulphides with a largo pyrrhotite content. Unfortunately the zone occurs outside the boundary of the area n o the positions way not be accurate. Neither the BtrJke direction nor the number of conductors can b determined clearly. Kone 2 is albo an excellent prospect for massive sulphides, especially in the vicinity of anomaly 4C. The dimensions and strike of this conductive yiono are not positively established; we have tentatively correlated the Rtrong anomaly, 4C, with the weak anomaly, 5A, and the questionable anomaly, 6A. There are coincident magnetic highs on all those EM anomalies. Conductor 3 vap detected by ei single EM anomaly. It ie a clearcut feature but not pttrony. It occurs on what appears to be e long north-south trending zone of magnetic activity. This may mean that it is associated with, or close to, one of the north-south striking diabase diken, Both the questionable anomalies are weak, out-of-phase blips. Anomaly 8A is considered a doubtful feature but IDA hoe a fair chance of being legitimate. TV. RECOMMENDATIONS All three zones of bedrock conductivity merit careful ground exploration ae sulphide prospects. In aones l and 2 the geophysical data uuggest large occurrences of 3.

4 sulphides carrying BubBtantial amounts of pyrrhotite. Bone 3 is interesting due to its isolated nature and its relationship to the north-south magnetic eone. Respectfully submitted A. R. Rattew,.ng Geophyuicist Ottawa, Ontario May 10, 1965

5 AENDIX J ROJ1CT HO AREA Anomaly Firtuciole In-hnee Kate Comments 2A 9957/C-O SO/GO 150 Dir on Broad 3 700y 0009/ / Dir 2000 Y (?) 1A EJroafl 4A 0239/45 620/ Dir Broad 1A Broad-Double l- C 0233/7 0221/5 420/ / Di ir loooy 2A Dir G50y 2A Broad Double Ouacl ~ Strong Broad Double Sh 0265/fi 30/ Dir 150y 3 V.eak 6A 0439/42 10/ Nil X W*ak 0670/4 0/ Nil X 0978/81 0/ X

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7 TURNBULL T-10 T-12 MAGNETIC LEGEND CARSCALLEN S - SHAR VS- VERY SHAR B - BROAD VB - VERY BROAD F - FLAT M MULTILE 200 SYMBOL 42A05NE CARSCALLEN 210 LEGEND l A ANOMALY B ANOMALY A ANOMALY..... MEAN TERRAIN CLEARANCE FEET FLIGHT LINE SACING l/ 8 MILE RIVERS AND LAKES AIRBORNE ELECTROMAGNETIC SURVEY CARSCALLEN TOWNSHI AREA ONTARIO CANADIAN AERO LTO 2 B ANOMALY., ANOMALY..... X type ANOMALY..... HORIZONTAL CONTROL......BASED ON HOTO LAYDOWN MESI MINES LIMITED SCALE: i INCH - 1/4 MILE (approx.) OTTAWA ft TORONTO, ONTARIO (AIROX.) C.A.U.S.5044

T, F 47 CINCINNATIPORCUPIN! NINES LIMITED CANADIAN AERO MINERAL SURVEYS LIMITED REPORT ON AIRBORNE MAGNETOMETER SURVEY FOR. Project No

T, F 47 CINCINNATIPORCUPIN! NINES LIMITED CANADIAN AERO MINERAL SURVEYS LIMITED REPORT ON AIRBORNE MAGNETOMETER SURVEY FOR. Project No OTTAWA, Ontario, Ralph D. Palconer August 8, 1966 Geophysicist. tnj Woz T, F 47 REPORT ON AIRBORNE MAGNETOMETER SURVEY OP THE TOWNSHIP AREA FOR CINCINNATIPORCUPIN! NINES LIMITED BY CANADIAN AERO MINERAL