Date Submitted: June General Nature of Report: Examination of Placer Samples
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1 General Nature of Report: Examination of Placer Samples Claim: Gold Channel, Record Number 3775!8 1 (Gold Channel Placer Property) Mining Division: Cariboo NTS 093 G 09 W and E Latitude N' Longitude ' 'W Owner: J. D. Graham Operator: J. D. Graham & Associates Ltd. Author: J. D. Graham, P. Eng. Date Submitted: June 200 1
2 Table of Contents Introduction Detailed technical data and interpretation Itemized cost statement Authors qualifications - Pas List of Maps Map 1 Map 2 Map 3 Claim Index Map Location of claim Sample Location Map
3 1 1. Introduction The subject claim, referred to as the "Gold Channel Placer Property", is located near Prince George, BC, 26 km east of Highway 97, along the Willow forestry road. The turn off on Highway 97 is 10.6 k m. south of Prince George city limits, as measured along the highway. The claim covers a 1 km section of the Willow River. It has been suggested that a paleo channel of the Fraser River may be cut by the Willow F5ver in the area of the claim. The claim (record number ) is owned by J. D. Graham. The operator is J. D. Graham & Associates Ltd.. The terrain in this area is moderate rolling timberland but areas close to the Willow River contain old alluvial terraces. Cutoff channels are noted. on air photographs, particularly down stream from the claim. The elevation at the centre of the claim is 820 metres above sea level. The placer potential of this section of the Willow River was studied and sampled in the 1930's and although the description in the M:inister of Mines Annual Report for 1935 was positive, there is no record of subsequent commercial production. Nevertheless, a small, rich placer deposit in a paleo channel may exist on the Gold Channel Property. The work described in this report is an initial test program consisting of the examidation of three placer samples. 2. Detailed Technical Data and Interpretation 2.1 Objective Gold can be recovered by panning gravel from various sites along the banks of the Willow River. The purpose of the investigations described in this report is two fold: (1) measure the value of the gold content at several locations and (2) seek indications of the source of the gold or location of possible c:ommercial deposits in the area through a study ilze recovered gold and associated minerals Geological Setting The BC Minister of Mines Annual Report for 1935 pages C26 to C26 describes this area. The report states that the bedrock geology in the vicinity of lhe property consists of schist, agillite, and quartzite intruded by several stocks of granodiorite. At a number of locations near the claim a schistose, steeply dipping bedrock is noted.
4 53deq. 45 N Gold Channel IPlacer Claim L metres J. D. Graham &Associates Ltd. GOLD CHANNEL PLACER PROJECT INDEX MAP - From Placer Titles Maps 093G09WREf SCALE: ICM = 500 M DATE: June i MAP NO. 1
5 2 The claim is underlain by extensive gravel benches. These benches are particularly well developed on the right hand bank of the river where they vary from 3 to 30 metres in height Samples Taken Three samples were collected from the Gold Channel claim. See Map 3 for the sample locations. Bank Sample 00-1 This sample was collected from the right hand bank of the Willow River at the point indicated in Map 3. Weighing 10.6 kg., the sample was a sandy gravel with the following size distribution River Bed Sample 00-2 Plus 1.2 cm. (plus?h inch) 18% Minus 1.2 cm. 77% Organics and silt 05% This sample was gathered from the water s edge, on the right hand bank, at the point indicated in Map 3. Total sample weight was kg., with a size range as follows: Plus 1.2 cm. (plus?h inch) 19% cm. Minus % Organics and silt 12% Bank Samp:le 00-3 This sample was dug from the right hand river bank near the centre of the.claim. Air photographs suggest that at this location a pale0 channel of the Willow River rejoins the present river channel. The sample weighed 11.0 kg., with a size range as follows: Plus 1.2 cm. (plus?h inch) 45% Minus 1.2 cm. 46% Organics and silt 09% Two constituents of this sample are notable. One cobble measured 15 cm by 7 cm by 7 cm with a somewhat angular outline. One fractwed face was coated with iron oxide and several other areas measuring 12 and 15 square cm were coated with an iron oxide cemented conglomerate. Fragments in the conglomerate were up
6
7 ~ ~ r Gold Channel Placer Claim 9 Final Post 0 \Ni,w* RN'3f Bank S'arnple 00-1 River Bed Sample 00-2 Bank Sample I 500 metres J. D. Graham & Associates Ltd. GOLD CHANNEL PLACER PROJECT " LOCATION OF 3 SAMPLES " SCALE: ZCM = 100 M DATE June c MAP NO. 3
8 3 to 1.5 cm across grading down to a coarse sand. One section of conglomerate had a smooth face, formed by a neighboring cobble, indicating that the cobble was part of a bed containing similar sized cobbles. The other unusual component of the sample was an angular 6 cm by 4 cm by 3 cm piece of dark gray clay showing evidence of bedding. This piece was heated but showed no sign of organics Sample Preparation and Processing Each sample was panned to produce a concentrate which was dried, weighed, then treated with a magnet to remove magnetite. The remaining concentrate sample and the magnetic fraction were examined by microscope in direct sunlight Results Bank Sample 00-1 This sample produced 2.4 grams of concentrate. Weight after removal of magnetite was 2.1 grams, Appearance to the unaided eye, after removal of magnetite: The concentrate appeared as a gray-brown colour fine sand. Five rock fragments measuring 2 mm to 5 mm and opaque garnet fragments of the same size were present. Occasional clear but smaller garnet grains were also seen, Microscopic examination: The concentrate was composed as follows: Rose coloured clear quartz grains 10% to 15% Magnetite 10% to 15% Orange to amber coloured clear garnet 05% to 10% Amber opaque garnet 10% 15% to Unidentified mineral and rock grains 65Y0 to 45% Gold 2 colours, measuring 1 mm in diameter, and lmm x 0.5 mm, and 2 specs. The magnetic portion was composed as follows: Magnetite 90% Rose coloured clear quartz grains 015% Unidentified mineral and rock grains 05% Gold: none
9 4 River Bed Sample 00-2 Weight of total concentrate sample: 6.8 grams, weight after removal of magnetite: 5.0 grams. Appearance to the unaided eye, after removal of magnetite: The concentrate appeared as a black gray colour fme sand, containing magnetite not removed by the magnet. Sunlight reflected off the magnetite crystal faces. Microscopic examination: The concentrate was composed as follows: Magnetite 80% to 90% Rose coloured clear quartz grains 05% Unidentified mineral and rock grains 1.5% to 05%8 Gold: 2 colours, 1 mm in diameter, and 2 colours lmm x 0.5 mm, 12 smaller pieces and 4 specs.. The grain size was slightly smaller than the Bank Sample 00-3 and 13ank Sample 00-1 samples. The magnetic portion, produced by passing a magnet through the sample, was composed as follows: Magnetite 90% Unidentified mineral and rock grains 10% Gold: 4 specs Bank Sample Weight of total concentrate sample: 1.4 grams, weight after removal of magnetite: 1.O grams. Appearance to the unaided eye, after removal of magnetite: The Concentrate appeared as a brown colour, with a green cast, composed of fme sand, with grains mainly measuring 0.1 to 0.5 mm. The sample was composed of 10% to 15% each of black and reddish colour grains. Three gold colours measuring 0.5 mm in diameter were noted, as listed below. Microscopic examination: The concentrate was composed as follows: Rose coloured clear quartz grains ls?h to 20% Magnetite 10% t0 15% Green mineral (olivine?) 058% t0 10% Orange to amber coloured clear garnet 05% to 15%
10 5 Unidentified mineral grains 65% to 40% Gold, 3 colours, 0.5 mm in diameter, one rod shaped piece, lmm long, 0.1 mm in diameter, and 7 specs. The garnets occasionally retained a dodecahedron shape. The magnetic portion was composed as follows: Magnetite 80% Rose coloured clear quartz grains 10% Unidentified mineral and rock grains Gold: one spec 10Y0 3. Interpretation While all samples returned gold, the quantities were small. Both the River Bed Sample 00-2 and Bank Sample 00-3 showed a greater quantity of gold than Bank Sample The character of the gold and of the mineral grains from Bank Sample 00-3 suggests that this material was subject to less transport erosion than the other two samples. The presence of the rusty conglomerate cobble and the clay fragment in this sample suggests that the material in Bank Sample 00-3 traveled a sorte:r distance thm the material at the other two locations. While the size of each sample was too small to permit statistically valid conclusions, the area represented by Bank Sample 00-3 is probably the higher grade. 4. Conclusions In order to lacate a possible gold-bearing channel, the right hand bank of the Willow River near the location of Bank Sample 00-3 should be further studied. Methods should include sampling the bank at intervals and test pits dug in the bench. 5. References 1. M:hister of Mines Reports, British Columbia for the year 1935.
11 6 Itemized Cost Statement days at $350/day, being portions of July 19 to 22, 2000, J. D. Graham, P. Eng., travelling to the Willow River, sampling and return trip $,1, days at $350/day, of being portions of October 1 and 2:, 2000, Janu~ary 22, 31, February 2, and June 6, 2001 preparing, pann.ing, and examining samples and report writing $ Expensee.(net of GST) Field accommodation, food $ Field supplies, equipment rental $ Transportation $ subtotal $ Total: $2,859.41
12 ~ """_ Author's Qualifications I, John Donald Graham, certify that: 1. I am a graduate of the University of British Columbia, holding the following degrees granted by UBC: B. Appl. Sc., Geological Engineering, and M. Appl. Sc., Mining Engineering, and 2. I am a member in good standing of the Association of Professional Engineers and Geoscientists of British Columbia, and 3. I have practiced my profession continuously since 1964.
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