REPORT ON THE MAGNETOMETER SURVEYOF THE SO0 MINERAL CLAIMS MERRITT, B. C.

Transcription

1 336 REPORT ON THE MAGNETOMETER SURVEYOF THE SO0 MINERAL CLAIMS MERRITT, B. C. To: The Directore Copper Soo Mining Syndicate OSO~OOS, B. C. R. C. Clough hglneering Ltd. Harvey H. Cohen, P. Pmg.

2 TABLE OF CCNTEWTS INTRODUCTION 1 Location and Access 1 Physiography Climate GEOtenOGY RESULTS OF GEOPHYSICAL INVESTIGATIONS GEXERAL PROCEDURES tialysis ACKHOWLELXMENTS RECOMMENDATIONS Department faines and btroleum Resources of AS~ESS;.:2:If REPORT NO. %%~ M&P

3 1. MAGNETOMETER SURVEY OF SO0 MINERAL CLAIMS MERRITT, B.C. THE INTRODUCTION The So0 property, consisting of 32 mineral claims is owned by the Copper Soo Mining Syndicate, a private syndicate incorporated in British Columbia. The period between the latter part of September and. October was spent largely on a magnetometer survey and establishing picket lines on the property. This report and map is compiled from results of this work. The purpose of the geophysical survey was to record or detect any magnetic anomalies on the propertyr- anomalies which would indicate the presence or absence of magnetic minerals primarily magnetite in the bedrock of the mineral claims. A magnetic anomaly located by this geophysical survey would indicate an area deserving detailed attention for copper mineralization has been found associated with magnetite on other claims in the Merritt area. LOCATION AND ACCESS The Soo mineral claims are situated approximately six miles east of Merritt, B. C., at an elevation of approx- V imately 3500 feet. The geographical location may be des-

4 2. cribed as Latitude 50 5'N by Longitude :i20 40'W. The property is readily reached by travelling on provincial highway No. 5 easterly for five miles then by dirt road north for one mile. The nearest supply centre is E4erritt which is' situated on the Nicola River some 130 air miles from the City of Vncouver, B.C. It is serviced by good highways to Kamloops, Princeton and Spence's Bridge, and is on the, Canadian Pacific Railway line. A sketch showing the claim location is enclosed with this report. PBYSIOGRAPHY Drainage of the property is into the Nicola River. The hills are generally rounded and lack the rugged ch;lracter of the mountains further west and south. The ground consists of open range country with occasional patches of alder and some fir on the upper slopes. Undergrowth is light and natural rock exposures are few. CLIMATE The average annual precipitation for this area is inches with somewhat more at higher elevations. The climate in general is considered agreeable with temperatures

5 3. during the summer months reaching looof and during the winter months OOF.

6 4. GEOLOGY According to the Nicola sheet (MAP 886A) of the Geological Survey of Cnada, the claims are underlain by the Nicola Group rocks of Triassic age consisting of volcanos and sediments. The Miocene Coldwater beds bound the claims on the west. Granitic intrusions surround the immediate area, but at a distance of some 4-6 miles. Copper mineralization appears in the area, broadly speaking, along the major fault structures that may be traced from Princeton to Nicola and beyond.

7 5. RESULTS OF GEOPHYSICAL INVESTIGATIONS The purpose of the geophysical survey was to determine the existence of any magnetic anomalies on the property and if so, what was their size and intensity and cause. An anomaly would result from the presence or absence of magnetic mineral magnetite in the rocks being investigated. It is known that copper minerals have been found associated with magnetite or adjacent properties in the Merritt area and for this reason a magnetic anomaly would be an area of interest for possible copper-iron ore bodies and worthy of more detailed attention. Factors which produce variations in vertical magneti.c intensity are:- 1. A concentration of magnetic minerals possibly associated wih valuable minerals. 2. A variation in amount of accessory magnetite in granitic or volcanic bedrock. 3. A variation in amount of magnetite distributed through or connected with the overburden. 4. A variation in depth of non-magnetic overburden on caprock over bedrock having a constant vertical magnetic intensity. 5. Variations in amounts of magnetic minerals in

8 6.. adjacent bands of volcanic and sedimentary rock such as may be expected in Nicola formations which would produce elongated magnetic highs and lows parallel to the formation strike. These variations are not expected to be great. 6. Any combination between variations in magnetic minerals in the rock and variaticsn in the thick- ness of the overlying magnetic or non-magnetic overburden or caprock. It will be seen from the above factors that the evidence of mineralization is not necessarily conclusive from a magnetometer survey one way or another.

9 7. GENERAL PROCEDURES On the 300 mineral claims, a grid was run on compass headings. The base line extended the entire N. S. length of the claims for 15,000 feet. Cross lines were run at intervals of feet depending on terrain, accessibility, results etc. Readings were taken at 100 foot intervals on the cross lines. 4' pickets - precut, were placed at each 300 foot st.ition and numbered - the designation being the cross line reference and the position or distance east or west of the base line. In this manner, any picket may be used to refer to any location desired. The cross line numbers were the actual distances from a mid-point reference. Readings were recorded in field notes together with any pertinent data such as obvious structural changes in the area, outcrops, rock types observed etc. Data plotted on the map was confined to the geophysical results. This was done in order to avoid cluttering. The other data was used in the analysis of the various features, anomalies and aided'in determining obvious causes of.nomalies (other than mineralization). The contour interval plotted was 100 gammas.

10 8. ANALYSIS Anomalies of interest that occurred were recorded on the map and are as follows:- 1. Northeast section of Soo 27 KC.: a high of 30,000 gammas (1902) was located on line A74 West and A69 West. A cross over to a low of 26,500 gammas in a southerly direction ind~icates an east-west trending structural feature along which possibilities of mineralization do exist..xt the southwest corner of Soo 29 KC., copper mineralization was observed at an outcrop. 2. Anomaly No. 2 is recorded at the northwest corner of Soo 32 M.C. Here a definite cross over does exist perpendicular to the general north-south trending structure. The zone covers an area of 400' x 400'. 3. Anomaly No. 3 is plotted on Soo No. 28: in the north central portion of the claim and is one of great interest. It is a combination of three crossovers indicating a north - south trending deposit or feature having strong polarity. The range is approximately 4,000 gammas between high and low. The features

11 9. I suggest very strongly a series of magnetite zones, possibly associated with copper mineralization, <ind resulting from the two major structural features or contacts - one along the north - south base line, the other along A64 west line. 4. H small anomaly No. 4 is insignificant in itself but is mentioned because it may prove to be related to No No. 5 anomaly, located on Zoo No has a high of 30,000 gammas, ind appears to be a structural feature. This is assumed for the time being in view of the physical shape, but does not eliminate any mineralization possibilities. Definite magnetic influence was experienced on,129 west to A34 west zone on the Brunton compass. 'The outcrops observed show volcanics. (rhyolites and tuffs). 6. Anomaly No. 6 bears investigating - a high of approximately 32,000 gammas, a length of over 600 feet, visl,ble iron sulphides - situated at the northeast corner of Soo 11 M.C. This area is just north of the zone on which w most of the "catwork" had been done during 1959.

12 10. v 7. Anomaly No. 7 extends from the existing trenches on Soo 11 KC. on the Soo 9 KC. The "high" (plus 32,000 gammas) is located to the south of the main trench by 500 feet. A recce in the vicinity revealed copper mineralization in a bluff on line 94 West. The anomaly indicated is quiteprominent, and extends over a distance of SO0 feet north - south. 3. The series of anomalies on Soo 9, 18, 2 are due, in the writer's opinion, to structure w and may be disregarded. 9ome attention mly be given to the anomaly on Soo 1 KC. (No. 8) whose behavior is rather interesting in that a change does take place between the north and south extremities of the anomaly. The high reading is 31,500 gammas. 9. No. 9, located on Soo 3 41.C. was traversed by the road, and indicates.a zone 400' x 400' in area that c uld qualify as a potential sulphide zone. Overburden prevented any geological study to ascertain the cause of the anomaly. 10. Anomaly No. 10 is on Soo No. 5 M.C. just

13 11. east of the dirt road. It appears to have a possibility of sulphide mineralization. however, the writer feels (due to the surface expression) that structural contracts are partly responsible for the readings recorded.

14 12. ACKNOWLEDGMENTS The writer wishes to express his gratitude to the directors of the Copper Soo Mining Syndicate, in particular Mr. T. 0. Wilson of Osoyoos, B.C., for the opportunity to investigate the Soo mineral claims, and to Messrs. Shutz, Soltice and Ewers, for their assistance and co-operation in the field.

15 13. RECOMMENDATIONS In view of the high readings recorded by the magnetometer survey of the area, the more important or more prominent anomalies are worthy of further investigation. Several instances of new copper mineralization have been discovered while traversing the area, and there is a possibility that the anomalies located magnetically, are associated -w;:a the copper mineralization, and may lead to uncovering bodies of ore grade mineralization. It is recommended that a program be instigated whereby at least the major or more prominent anomalies be investigated further. This may be accomplished by:- 1. Employing a diamond drill to investigate at depth, the characteristics of Anomalies Nos. 7, 6, 1 primarily, and others at a later date, depending upon the results of the first drilling stage. No less than three holes should be drilled on each anomaly, and the depth of penetration should aggregate possibly 1,000 feet (3 holes). k total of 3,000 feet of drilling, therefore, should be a minimum~reguirement and the data obtained would dictate any future program. If "ore" is discovered to be responsible for the anomalies, then a major

16 14. drilling program would be instigated in com- bination with a further geophysical (electrical method) examination. Drilling is favored at the present in preference to an electrical survey. The electrical survey would duplicate any anomalies due to magnetite, and indicate others due to non-magnetic sulphides, and too, would be influenced by the underlying coal seams at the west boundary of the claims. The drilling would reveal immediately the rock types and structure of the anomalous areas. 2. A limited amount of "catwork" can be carried out on the other anomalies - a trench - readily cut through the shallow layer of overbu:rden may indicate the "cause" of the anomaly and'assist in supplying valuable structural information. The cost of this stage of exploratory work is estimated as follows: Diamond drilling, 3,000 feet 3 $80 $ 24,000 Catwork - 1 week 1,000 Supervision, engineering, core logging Assays, misc. core boxes, supplies 1,500 1,500 $ 28,000 Contingencies 2,000 TOTAL $ 30,000

17 t COPPER SO0 31INING SYNDICATE 1. Nature Of Report: Geophysical 2,Names Of Claims: 3.Author: 1-32 M.C. 1-4 M.C. Nicola brining Division Latitude 50' 51 N Longitude 120' 351 w 11. C. Clough En&ineering Ltd. Harvey H. Cohen,?.2ng. 4. Ownership: T G.I*(ilS*tq ) %ustce, (Copper Soo Mining Syndicate) Osoyoos, B.C. 5, Dates: August 31 - September 5 September 19 - September 26 October 3 - November

18 DETAILS OF EXPENDITURES August 31 - November 9 GEOPHYSICAL REPORT: Soo 1-32 Mineral Claims Bear l-4 Nicola Mining Division RECONNAISANCE, ESTABLISHING BASE LINES lind CROSSLImS SETTING PICI(ETS AND STATIONS: XAGNETOM~TER SURVEY: J. Schutz X. Ewers F. Soltice H. Cohen J. Schutz II. Ewers F. Soltice IS. Cohen * Mappine REPORT: Fees: H. Cohen J. Schutz H. Cohen

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