Rpt on Airborne Test Geophys Surv Nipigon Plate Prop
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A Report on Airborne Test Geophysical Survey on the Nipigon Plate Property, of MAPLE MINERALS CORPORATION Burchell Lake Claim Group, Kashabowie Area Thunder Bay Mining Division, Ontario Province of Ontario for Maple Minerals Corporation, Suite 2810, 130 King Street West Toronto, Ontario M5X 1A9 October 7th , 2003 Roger J Caven, BASc, P Eng, Consulting Geophysicist RR# 5, 479 Ocean View Drive, Gibsons, British Columbia, CANADA VON 1V5 Tel/Fax: (604) 886-0479, e-mail: roge^[email protected] (Sunshine Coast) 52B10SE2021 2.27254 BURCHELL LAKE 010 TABLE OF CONTENTS Summary Page 3 Introduction 3 Location and Access 3 Previous Work 3 Property - Description and Location 4 Geology of the Claim Group and area 4 Airborne EM - Magnetic Survey 5 Discussion of Results 5 Distribution of Work Performed 6 Conclusions and Recommendations 6 References Reports 7 Maps 7 Certificate of Author 8 Table 12.5 Metamorphic mineral assemblages of the Shebandowan greenstone belt, 2 pages. Report of a Helicopter-borne Time Domain Electromagnetic Geophysical Survey, Norton Lake, Linsey Bay, Deaty Creek Blocks, Thunder Bay Area, Ontario, for East West Resource Corporation, by Geotech Ltd. Location Map Claim Map Geology Map Reduced Airborne EM Profile Map with claims Scale 1:50,000 Reduced Airborne Magnetic/EM Profiles Scale 1:40,000 In Pocket Airborne Stacked EM Profile Map with claims Scale 1:20,000 Figure l LOCATION MAP Burchell Bloc Deaty Creek Block SUMMARY Maple Minerals Corporation, holds a group of claims south of the Kashabowie area in the Shebandowan greenstone belt, about 88 km WNW of Thunder Bay, Ontario, the Burchell Lake 220 claim units in 17 claims. The claims are located between and south of the Burchell and Greenwater Lakes, and south of the Kashabowie area. The survey is reported on as Deaty Creek Test lines by Geotech Ltd and flown together with the surveys over the East West properties to obtain preliminary information on the claim block area. This report deals with the recent airborne geophysical survey over the Burchell claims group. On February 11 th to 16th Geotech Ltd flew the Burchell property with the Helicopter-borne time domain electromagnetic/ magnetic survey system. This survey was intended to outline electromagnetic conductors and to obtain some magnetic information on the subsurface geology. Results of the survey are appended as a map with survey lines and profiles of the EM. Also presented are individual profile maps, which include the magnetic response with the EM. INTRODUCTION The Kashabowie area and the present Burchell property are in the Shebandowan greenstone belt in the Wawa subprovince. The Archean age Superior Province includes several greenstone belts with iron formations and sulphide occurrencies, many with economic basemetal mineralization. The greenstone belts have been subject to exploration for many years, however, newer geophysical techniques have improved the discrimination of conductive features as well as providing a better depth penetration. Although helicopter borne geophysical surveys have been used for many years, they have been based on frequency domain systems, which have limited depth penetration, but generally good resolution of near surface features. The move to time domain electromagnetic systems began in the 1960©s with the Barringer Research INPUT system. INPUT improved depth penetration, although resolution was less. Several time domain systems have been developed since, among them the Fugro (formerly Geoterrex) Megatem system with high power and very good depth penetration. Recently Geotech Ltd has developed and tested the helicopter borne Dream Catcher Time Domain Electromagnetic system. Test flights by Megatem and Dream Catcher TDEM have shown comparable depth penetrations but better lateral resolution for the latter. East West Resource Corporation decided to use the Dream Catcher TDEM system for a detail look at the Kashabowie area of the Shebandowan greenstone belt and extended the survey to the Burchell Lake property on behalf of Maple Minerals Corporation. LOCATION AND ACCESS The property is road accessible via Hwy 11 to Kashabowie situated -88 km WNW of Thunder Bay. Local and forestry roads branch off the highway south to the property. PREVIOUS WORK Previous work on the property and surrounding areas are described in the references. Additional work is to be found among assessment work reports. PROPERTY- DESCRIPTION AND LOCATION BURCHELL LAKE PROPERTY The Company has acquired a 1000Xo owned 220 claim unit group covering parts of the area between Burchell Lake and Greenwater Lake and south thereof, at 480 34© N latitude and 900 35© W longitude (~ centre), about 20 km NE of the Deaty Creek block, approximately 88 km WNW of Thunder Bay, in the Thunder Bay Mining Division. The property is accessed from Hwy 11 via roads to the south. Claim no Claim Map Units Recorded Due Date 3011095 Burchell 15 Jan22-2003 Jan22-2005 3011096 Burchell 15 Jan22-2003 Jan22-2005 3011097 Burchell 15 Jan22-2003 Jan22-2005 3011098 Burchell 15 Jan22-2003 Jan22-2005 3011099 Burchell 12 Jan22-2003 Jan22-2005 3011100 Burchell 08 Jan22-2003 Jan22-2005 3011101 Burchell 16 Jan22-2003 Jan22-2005 3011102 Burchell 16 Jan22-2003 Jan22-2005 3011103 Burchell 08 Jan22-2003 Jan22-2005 3011104 Burchell 16 Jan22-2003 Jan22-2005 3011126 Burchell 16 Jan22-2003 Jan22-2005 3011127 Burchell 16 Jan22-2003 Jan22-2005 3011128 Burchell 12 Jan22-2003 Jan22-2005 3011129 Burchell 12 Jan22-2003 Jan22-2005 3011130 Burchell 12 Jan22-2003 Jan22-2005 3011131 Burchell 12 Jan22-2003 Jan22-2005 3011456 Burchell 04 Jan22-2003 Jan22-2005 Total 17 claims 220 units = 3520 ha GEOLOGY OF THE CLAIM GROUP AND AREA The Burchell claims in the Kashabowie area are in the Shebandowan greenstone belt of the Wawa Subprovince of the Superior Province. The age is Archean. The Shebandowan greenstone belt is arcuate in shape reflecting the curvature of the Quetico - Shebandowan greenstone belt boundary, approximately WSW - ENE as shown by the magnetic trends. The Shebandowan greenstone belt is subdivided into the Burchell and Greenwater assemblages, with a third suite of rocks, the Shebandowan assemblage, consisting of sedimentary and volcanic rocks which overlie unconformably the Burchell - Greenwater boundary, locally straddling it. The Burchell assemblage is divided into three cycles, with cycle 1 intruded by the Shebandowan Lake intrusion. The lower part of cycle 1 comprises massive basalt flows locally altered to chlorite schist. Pillow lava underlies the dacite and rhyolithic units in the upper parts of the cycle. Near the base of this cycle are tabular, serpentinized, peridotite units that contain copper - nickel mineralization. Cycle 1 contains the most extensive basic intrusions in the greenstone belt. Cycle 2 also contains numerous mafic intrusions, but also distinguished by a thick unit of rhyolite to dacite which extends along the northern part of the belt. The main mass of this felsic unit located in and south of the Burchell area is displaced and separated from the more tuffaceous eastern part by right-handed transcurrent movement on the Crayfish Creek fault. (The geology information has been abstracted from "Geology of Ontario; OGS Special Volume 4, Pt1, 1991.) Appended is a two-page table: Table 12.5. Metamorphic mineral assemblages of the Shebandowan greenstone belt. Geology of Ontario; OGS Special Volume 4. Metosedimentary Late to posttectonic granitoids Mafic to ultramafic intrusions XXX Tonalite— granodiorite gneiss Intermediate to felsic metavolcanics Metasediments Mafic to ultramafic metavolcanics HHJ^] Metasediments— metavolcanics Fault and Shear zones (Timiskaming— type) Mineral occurrence Study areas (1991-1994) Figure 43.2. Generalized geological map of west-central Shebandowan greenstone belt. Abbreviations are: BFZ^ boundary fault zone; BIJ^Burchell Lake fault; USSZsUpper Shebandowan shear zone system; LSSZ^ower Shebandowan Lake shear zone system; PF=Postans Fault; SGFZ=Squeer Lake- GreenwaterLake fault zone; TLFZ^into Lake fault zone; CCF^rayfish Creek fault; OS^badinaw stock; MLS^Moss Lake stock; BLSsBurchell Lake stock; HS^ermia stock; HLSrrHood Lake stock; GLS=Greenwater Lake stock; LGP^ittle Greenwater Lake pluton; PCS^Pinecone stock; K^ Kekekuab stock; SMUCr;Star Lake mafic to ultramafic sill complex; PS=Peewatai stock; SS=Shebandowan stock; and HGOHaines gabbroic complex. Mineral occurrences include: 1. Huronian Mine (past producer), 2. Snodgrass Lake prospect, 3. North Coldstream Mine (past producer), 4. Vanguard prospects, and 5. Shebandowan Mine. 01 ro Table 12.5. Metamorphic mineral assemblages of the Shebandowan greenstone bell. en Area; Rock Type Observed Assemblage C References l Burchell Lake; Burchell assemblage . Giblin 1964 felsic to intermediate volcanic rocks quartz, albite, white mica, chlorite, carbonate; C mafic volcanic rocks chlorite, hornblende, iremolite-actinolile, carbonate, albite, epidote quartz; hornblende is largely replaced by chlorite I (typical of D2 domain); narrow chlorite schist bands with i carbonate, white mica, albite and quartz gabbro (north of Skimpole hornblende, saussuritized plagioclase, quartz, carbonate, epidote, chlorite, Lake, east of Burchell Lake) apatite, magnetite, pyrite, pyrrhotite Greenwater assemblage quartz and minor plagioclase alternating with biotite, minor magnetite and pyrite banded tuff (northwest of Grouse Lake) and tuff in Quetico sedimentary rocks iron formation (north of Squeers Lake) magnetite, quartz, amphibole carbonate epidote gabbro (north side of Hood Lake hornblende,