Geophys Mag Vlf-Em Line Cutting Surv
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GEOPHYSICAL REPORT ON A MAGNETIC r~~~lt HELENA LAKE PROPERTY DASH LAKE AREA (G-2671) KENORA MINING DISTRICT, ONTARIO LATITUDE: 49°06.7'N LONGITUDE: 93°33.3'W UTM: 459,500E 5,440,OOON Zone 15 NAD83 NTS: 52F/4SE by Dennis V. Woods, Ph.D.,P.Eng. Consulting Geophysicist for I KING'S BAY GOLD CORP• • 52 Gull Lake Road Winnipeg, Manitoba R , AUG 2 2 ?rr, G;~OSCIENCE ASSESSMENT _~fIiDE"_~ __ DATE OF WORK: 25-31 January and 9-11 February 2005 DATE OF REPORT: 1 May 2005 King'S Bay Gold Corp. Helena - MagIYLF TABLE OF CONTENTS PAGE INTRODUCTION................................................................................................................. 1 PROPERTY LOCATION, ACCESS, DESCRIPTION AND PHySIOGRAPHY ................... 2 SURVEY METHODOLOGy........................................................................ ........................ 5 Magnetics .................................................................................................................. 5 VLF-EM ................................................................................................................... 6 SURVEY PROCEDURES .................................................................................................... 8 MagneticNLF-EM Survey ........................................................................................ 8 DATA PROCESSING AND PRESENTATION ................................................................. 12 Magnetics ................................................................................................................. 12 VLF-EM .................................................................................................................. 13 INTERPRETATION PROCEDURES ................................................................................ 14 Magnetics ................................................................................................................. 14 VLF-EM .................................................................................................................. 14 DISCUSSION OF RESULTS ................................................................................................ 16 Magnetics ................................................................................................................. 16 VLF-EM .................................................................................................................. 16 CONCLUSION AND RECOMMENDATIONS .................................................................... 17 REFERENCES ........................................... " . ...... ....... .................. ..... ..... .... .. ................... ... 18 CERTIFICATE OF QUALIFICATIONS ............................................................................. 19 Discovery Geophysics Inc. ii King's Bay Gold Corp. Helena - MagCv1..F TABLES TABLE 1 - Helena Lake Property ........................................................................................ 2 TABLE 2 - MagneticNLF-EM Survey Coverage ................................................................ 12 ILLUSTRATIONS FIGURE 1 - Location Map... ............................................................................... .................. 3 FI GURE 2 - Property Map ................................................................................................... 4 FIGURE 3 - Survey Map ..................................................................................................... 11 APPENDICES APPENDIX A - Instrument Specifications APPENDIX B - Data Plots and Maps Map 1 - Total Magnetic Intensity - Profiles, Contours and Colour Grid Map 2a - Filtered VLF-EM Profiles· La Moure (25.2 kHz) - In-Phase, Quadrature, Total Field Map 2b - Filtered VLF-EM Profiles - Cutler (24.0 kHz) - In-Phase, Quadrature, Total Field APPENDIX C - Digital Data on Diskette Discovery Geophysics Inc. King's Bay Gold Corp. Helena - Mag!VLF INTRODUCTION During the period 25 to 31 January and 9 to 11 February 2005, Discovery Geophysics Inc. carried out a magnetic and VLF-EM survey on the Helena Lake property, in the Kenora Mining District, Ontario for King's Bay Gold Corp. The Helena Lake property consists of two claims (15 units) covering an area of about 234 hectares in the Dash Lake Area (G-2671), about 30 km east of the town of Nestor Falls, Ontario. The magnetic and VLF-EM survey was carried out over a cut and chained survey grid that extended over the entire claim block, including the frozen surface of Helena Lake. The survey was carried out to help map the geologic formations and structures on the property from their magnetic and electrical conductor signatures. The survey was also intended to locate conductors that might be caused by zones of gold and/or base metal sulphide mineralization. The survey was carried out by Tim Kulchyski: manager of central Canada operations. The survey grid was established by King's Bay prior to the commencement of the survey. UTM locations of the ends of survey lines and at stations along the baselines were recorded by the operator during the course of the survey using a hand-held GPS receiver, so that the grid, which was somewhat irregular, could be plotted accurately on the final data maps. The survey was carried out using an EDA Instruments Inc. (now merged with Scintrex Ltd) Omni Plus magnetometerfVLF-EM system and an Omni IV base station magnetometer. A total of27.24 km of magnetic and VLF-EM coverage was surveyed on 20 lines and 7 tielbase lines over a period of 6 days. VLF-EM data were recorded from two separate transmitters: La Moure, North Dakota (25.2 kHz) and Cutler, Maine (24.0 kHz). This report is a technical description of the surveys, and the data processing and interpretation procedures, followed by a discussion of the results and their implications for the continued mineral exploration program on the property. The total magnetic intensity data are presented on a 1 :5,000 scale, topographic base map showing the profiles, contours and colour gridding. VLF-EM data are shown as stacked profiles of the total field, in-phase and quadrature components on 1 :5,000 scale topographic base maps. There is a separate map for each VLF transmitter. Interpretations ofVLF EM conductors are made on each VLF profile map, and are then combined onto the magnetic map. Discovery Geophysics Inc. 2 King's Bay Gold COl}? Helena - MagIVLF PROPERTY LOCATION, ACCESS, DESCRIPTION AND PHYSIOGRAPHY The Helena Lake property is located about 30 km east of the town of Nestor Falls, north-western Ontario (Figure 1). The geographical centre of the the property is 49°06.6'N and 93°33.3'W (UTM NAD83: 459,500E, 5,440,000N, Zone 15) in the southeast corner ofNTS map sheet 52F/4. The town of Nestor Falls offers all of the amenities necessary for persons working in the area. The property is readily accessed from town via the Pipestone Lake Road, and a series of logging roads that turn off to the southeast at 17 km. During winter months, the Pipestone Lake Road is ploughed and maintained, but from the junction at 17 km it is necessary to use snowmobiles on the secondary logging roads for an additional 15 km into the property. During summer months it is possible to drive a 4x4 truck to within a kilometre of the survey grid (see Figure 2). The Helena Lake property consists of two mining claims (15 units) covering an area of about 234 hectares over Helena Lake and immediate lands to the west (Figure 2). The magnetic and VLF-EM survey was carried out over an imperial survey grid that covered just about the entire property. (The grid was mistakenly turned a few degrees from true north-south, which resulted in slight gaps and overlaps with the surrounding claims). Details of the mining claims are listed in Table 1 and the claim map is shown in Figure 2. Table 1: Helena Lake Property Claim Recording Date Due Date Unit Size K 3012329 2003-May-08 2005-May-08 3 K 3012330 2003-May-08 2005-May-08 12 Total 15 The topography of the region is typical of the Canadian Shield: lakes, creeks and swamps in low lying areas, glacial deposits and occasional rocky outcrops forming higher ground. A prominent northeast-southwest trending ridge dominates the area and forms the northwest side of Helena Lake. The slope down to the lake is very steep in places, making line cutting and geophysical surveying difficult. The boreal forest cover is dominantly black spruce in low areas, and jack pine and popular occurring sporadically in higher ground. Discovery Geophysics Inc. Wi n1sk ..w-jln'ln L.nding . C A 'N A 0 1>, ' ,.Ijlfjd t:.D; .•.a tir.i$(fn L jk~" "~ iQ 1roll1 L.,. SJ ndy:UI<e 0 ~ TA R I .0 Alt . .. .. Popl., Hi ll C.t Lake elJlJmm it Llkt •. ¢' . rort Ho p. ta , S-",In' Post P~g lN _ ¥.4r1nipag.,' Sioux loi)k o~t . • N i; ld n~o ,,f~jV .f ... S~v~nt .,.,.Idton", C.. umllt K.I)~r'· -20ryden L ake ! ~ J " Be I t~m o;@ K.; -.-.- aootl"Q U.,nitouwAcg.· P.t. afto n. <10 .... ~ tt Fr.JI nCQ$. EO STATES "'In. MHf, -"- -- "'- .... ·7 · ' INDEX MAP .... 0 T . "'- ( ~ .."W .,.." Bla H.allt.k de o i ...( ood - .-"" r'" Burriss I • .t " _ . BarV\?ck chos e .- -- .- -..... - . ~ mc, ___----.. ~.., anito LJ - ~-==- SOT A 11 ·'1 ,er~z ie r I. I l Scale 1 :450,000 Figure 1 Location Map Helena Lake Property o 10 20 30 King's Bay Gold Corp. - - UTM Zone 15 NAD83 Scale 1 :20,000 Figure 2 Property Map o 400 800 1200 1600 m Helena Lake Properly ---- King's Bay Gold Corp. 5 King's Bay Gold Corp. Helena - MagNLF SURVEY METHODOLOGY Magnetics The primary objective of magnetic surveying in mineral exploration is the identification and characterization