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File Created: 29-Dec-1991 by Chris J. Rees (CRE)
Last Edit:  08-Mar-2022 by Garry J. Payie (GJP)

Summary Help Help

NMI
Name NEWMAC 1, C GRID, ROAD GOSSAN, L.B. SHEAR, BLUFF Mining Division Clinton
BCGS Map 092N077
Status Prospect NTS Map 092N15E
Latitude 051º 45' 34'' UTM 10 (NAD 83)
Longitude 124º 40' 08'' Northing 5735601
Easting 384821
Commodities Gold, Silver Deposit Types H05 : Epithermal Au-Ag: low sulphidation
Tectonic Belt Coast Crystalline Terrane Cadwallader, Stikine
Capsule Geology

The Newmac 1 occurrence is located 17 kilometres south-southwest of the community of Tatla Lake. It combines mineral showings in the "C" Grid area with those about 1 kilometre to the east in the Lower Butler Creek area, both in the Newmac property (Assessment Reports 17080, 18036, 20860). These showings are somewhat subordinate in significance to other showings on the property, covered by the Bu (MINFILE 092N 030) and Mac (MINFILE 092N 054) occurrences.

The area around the Newmac 1 occurrence is underlain by Middle to Upper Triassic volcanics and sediments of the Cadwallader Group, intruded by quartz diorite of the Late Triassic Cadwallader plutonic suite. The area lies between two major northwest-striking faults, the Yalakom and Tchaikazan faults, along the northeastern margin of the Coast Plutonic Complex. A splay of the latter, the Niut fault, occurs just south of the area of interest (Geological Survey of Canada Open File 1163).

The volcanics are mainly andesitic tuffs, with minor breccia and porphyritic flows. These are interbedded with rhyodacitic flows and tuffs. The quartz diorite and diorite intrusions are medium grained and porphyritic; one large body can be traced intermittently between the two areas of mineralization. The volcanics are also intruded by dikes, including monzonite porphyry and quartz-feldspar porphyry.

Fracturing, where present, has a predominantly northerly trend. Alteration is commonly associated with these structural zones, particularly silicification and pyritic (sericitic) alteration; it is locally intense and may extend for several metres.

The "C" Grid area consists of an oxidized (goethite) zone of silicified and pyritized volcanics and diorite. Rock and soil samples contain anomalous precious and base metal values over an area at least 600 by 200 metres, such as up to 0.37 gram per tonne gold and 58 grams per tonne silver (Assessment Report 17080).

Probably the most significant zone is a 6-metre wide, northeast-striking shear zone in andesite and diorite in the Lower Butler Creek area (L.B. Shear). It is marked by argillic and pyritic alteration and local silicification, and includes a quartz vein with pyrite and arsenopyrite, one grab sample of which was analyzed to contain 2.35 grams per tonne gold and 1.3 grams per tonne silver (Assessment Report 17080).

Placer gold has been found in Lower Butler Creek to the west (downstream) of this showing, consisting of fine gold and one nugget 6.5 millimetres across (Assessment Report 18036).

WORK HISTORY

Previous to the 1960's and possibly into the 1940's precious metal veins were discovered on "Butler Mountain". The knowledge that there was precious metal potential on Buffer Mountain is supported by the fact that the Butlers, owners of the cattle ranch on the lower reaches of Butler Creek, had panned small amounts of gold and recovered at least one "pea sized" nugget from Butler Creek. The Butlers seasonally grazed cattle in the alpine meadows and herded their cattle to higher open range on a cow and horse trail that crossed clay altered and gossanous exposures below the MacDonald (Cow trail) veins.

Sometime in the 1960's American Air Force personnel based at Puntzi Lake, became knowledgeable about the precious metal veins on the flank of Butler Mountain and placed claim posts following American federal staking laws. It is doubtful whether these claims were actually recorded in British Columbia.

In 1966, Puntzi Lake Resident, A. McDonald staked the St. Teresa Claims to cover the veins. Sometime after 1966 and for the better part of fifteen years, MacDonald laboured with a small bulldozer to build a pickup truck road to the veins. MacDonald reached the veins about 1982, and died shortly thereafter. The Title to the St. Teresa claim was transferred to his nephew Don Rose.

During the early 1970's, Noranda Exploration Company Limited staked the B.U. claims in the Butler Lake area after regional sampling indicated anomalous values for copper, molybdenum and gold. Noranda completed geological, geophysical (IP) and geochemical (soil) programs (Assessment Report 4540).

In 1984, Imperial Metals (JW Morton) investigated up the MacDonald Road and a total of 250 soil samples were collected. Imperial located a set of quartz veins exposed in three hand trenches. They subsequently optioned the claims from Don Rose and staked additional claims. The claims were MAC, Mac 2, St. Teresa 6 and MC 1-3. A strong vuggy quartz vein occurs within the alteration zone and has been exposed by hand trenching. The vein is up to 1.5 meters wide in surface exposure and is banded. A central core of white quartz (0.3 metre) contains 1 to 2 per cent galena and contains 240 to 377 grams per tonne silver and 2 to 4 grams per tonne gold (Assessment Report 12422). Work completed occurred on the MC#2, MAC and St. Teresa #6 claim.

In 1984, Imperial Metals staked the Mac claims after acquiring an option on the St. Teresa claims (Bu prospect (092N 030) Assessment Report 12422,13780). Work was completed on the MAC and St. Teresa 6 claim. After collecting 79 rock samples, grid soil sampling the Cow Trail vein area and conducting some bulldozer trenching. Soil grid sampling and bulldozer trenching in 1984 yielded sporadic assays within the Cow Trail veins up to 12.17 grams per tonne gold and 1138.3 grams per tonne silver, 0.24 per cent, 21.2 per cent lead and 3.7 per cent zinc; values are typically from 1.37 to 2.74 grams per tonne gold (Assessment Report 13780) Imperial Metals drilled two holes from 1 set up on the vein structure before cold weather ended the program. Imperial Metals was reported to have followed up with two diamond drill holes from 1 set up on the vein structure on the Cow Trail vein (to 61 metres and 66.1 metres respectively). The assay results from the drilling were further reported to have been disappointing and Imperial Metals subsequently dropped its option on the property.

In 1987 Canevex Resources Limited purchased the St Teresa claim from Don Rose and staked the Newmac claims around them. Newmac was a contraction of New MacDonald. The property was optioned to Jaqueline Gold Corp that same year. Subsequent work revealed porphyry style mineralization and alteration in Butler Creek bed. During October 1987, a senior geologist and three geotechnicians spent fourteen days on the property conducting geochemical soil grid surveys, mapping, and backhoe trenching. Jaqueline Gold Corp. expanded their grid and completed an IP survey preparatory to drilling two diamond drill holes later that year. A total of 139 rock aand 878 soil samples were collected for analysis. As a result of the 1987 work, three discrete anomalous trends were delineated. The previously known Cow Trail vein, located on the "A" grid, was enlarged and a new quartz-sulfide stockwork zone, the Goat Trail zone, was outlined in the "A grid" area. Samples from this new zone returned values up to 480 grams per tonne silver and 1.03 grams per tonne gold (Assessment Report 17080). A third zone, known as the Road Gossan, shows a north-south trending gold, silver, copper, zinc anomaly with dimensions exceeding 600 metres in length and 200 metres in width. Further rock and soil sampling was done on the B grid, C grid, McDonald Road, the Bornite showing and Lower Butler Creek.

In 1988, Jacqueline Gold Corp.'s exploration program focused on the B Grid/Butler Lake anomaly (Bu Prospect area (092N 030)) and comprised: fill-in and extensions of the geochemical sampling; line cutting; Induced Polarization surveying; geological mapping and; core drilling. A roughly coincident copper-gold geochemical and geophysical chargeability anomaly measures approximately 1200 meters by 200 meters along a northerly trend and appears to remain open to the south. Two diamond drill holes were completed at 45-degree dips to test the coincident anomalies. degree dips to test strong chargeability and soil geochemical anomalies. Strong accumulations of sulphides were encountered in both drill holes while hole NM-88-2 intersected significant copper and anomalous gold values throughout its length (Assessment Report 18036). Molybdenum values are low, with a peak value of 0.018 per cent, reflecting the sporadic, though visible occurrence of molybdenite. Jaqueline Gold subsequently returned the property to Canevex.

In 1989, Canevex optioned the property to Noranda Mining and Explorations Inc. who (from 1989 to 1990) completed 30 kilometres of IP survey, 37 kilometres of ground Magnetics survey, analyzed 1203 soil samples, 158 rock samples, and completed 700 line-kilometres of helicopter airborne geophysical survey (Assessment Report 20860). Work was conducted on B grId and Butler Creek area of the Newmac Group and the and Newmac East group of claims. The Bornite zone is contained within the northwest corner of the grid area where a weak copper-gold anomaly exists and is open to the north. The Bornite zone is about 3 kilometres north of Butler Lake.

In 1991, Noranda completed 1939 metres of diamond drilling in seven holes before returning the property to Canevex (Assessment Report 21967). At the conclusion of Noranda’s work, an apparent horseshoe-shaped induced polarization response was identified and interpreted to reflect a pyrite shell surrounding a potentially significant mineralized core. Noranda also concluded that essentially all of the drill testing had occurred within the pyrite shell.

In 1998, Canevex optioned the Newmac property Ascot Resources Ltd. who undertook exploration for a porphyry copper-gold-molybdenum target, referred to as the “B Grid” or Butler Lake target. Ascot completed 4 holes (875 metres), designed to test the inside of the pyrite shell but found that the holes had intersected rock with a total sulphide content the same as that previously found within the pyrite shell (Assessment Report 25766). The Ascot program, while failing to identify economic mineralization, did establish that the porphyry system was potentially very large. A small amount of work was completed approximately 3 kilometers to the north of the B Grid in an area referred to as the “Bornite Showing” target. This target is also a copper-gold (molybdenum) anomaly that, while probably originally discovered in the 1940’s, was re-identified by soil geochemistry and induced polarization surveying by Noranda while working on the Butler Lake target in 1991. The Bornite showing was completely overburden-covered and at this time had never been drilled.

In 2004, Newmac Resources Inc. acquired the claims from Canevex and conducted 17.8 kilometres of IP and magnetic surveys along the Macdonald Road ("C" grid, Newmac 1 (092N 055)) where altered and pyritic rocks had been noted (Assessment Reported 27543). Several well-defined induced polarization anomalies were revealed. In 2005, Newmac completed a total of 6 widely spaced drill holes for a total of 1130.4 metres (Assessment Report 28547). Work was done on the Bornite showing-Noranda Pits area, the MacDonald Road and the Butler Lake area. The widely spaced drilling failed to refine or direct the exploration beyond the knowledge base already at hand. Two of the holes were collared in close proximity to hole 88-2 but at different dips. In 2006, diamond drill hole 05-2, located near the former drill hole 88-2, was drilled to a depth of 310 metres and yielded 0.18 per cent copper and 0.07 grams per tonne gold over 214 metres (Assessment Report 28547).

In late 2006, Newmac Resoures Inc. completed an option agreement for the Bluff Claims and were followed closely by a geophysical survey totalling 28.2 kilometers of IP and magnetics. The geophysical program delineated several targets to be followed up by diamond drilling.

In early 2007, a diamond drilling program was initiated by Newmac which completed 2389.4 metres of NQ coring in 14 holes (Assessment Report 29526). Drilling was done in the Rolston Ranch (“C” grid) area. Results of that program were inconclusive. Drill core was not systematically sampled and that core which was assayed was reported to not be significant. However, un-split core stored on site at the Rolston Ranch shows varying degrees of copper mineralization, particularly in holes 2, 3, 4, 7 and 8, which were drilled on the “C” grid and on setups to the west-southwest and southwest of drill hole 07-07. (Figure 4, Assessment Report 29526). Holes 07-09 to 14 tested IP changeability anomalies and failed to locate economic mineralization. Sufficient quantities of pyrite were encountered to explain the IP effects. Refer to year 2013 work history for drillhole 07-08 re-analysis.

In 2012, Susan Rolston formed Tchaikazan Resources Ltd. to manage the expanding land holdings. Work since that time, has been undertaken on behalf of the company. The 2012 geochemical program consisted of rock sampling on three areas of the Bluff claim block. Notable samples were taken below the Bluff Lake Road in the area of Painted Bluff showing. Samples Blu1, Blu2 and Blu3 (adjacent Bluff Lake) returned copper values including 0.319 per cent, 0.233 per cent and 0.625 per cent respectively. Sample Blu1 also returned 2.02 grams per tonne gold, 0.226 per cent arsenic and 0.09 percent zinc (Figure 6. Assessment Report 33785). Eight of twelve samples located in the area of the Bornite showing (NEW MINFILE in Dec. 2021) were anomalous in copper with sample Bor007 returning assays of 0.217 per cent copper, 0.09 grams per tonne gold and 3.5 grams per tonne silver (Assessment Report 33785). Bor007 was taken from a broad, 20 metre, shear zone that crosses the west branch of upper Butler Creek.

The 2013 work program of Tchaikazan comprised geochemical sampling of 22 rocks, 86 drill core intervals and six soils from various locations on the Bluff claims and the newly acquired land package. The “Noranda Pits” were located on the Butt1 claim in late May by Susan Rolston. Five soil samples were taken from five pits by Susan Rolston and geologist Roger MacDonald. Six samples of un-split core were taken from boxes stored at drill platform DDH 85-1/85-2 on the west side of the creek adjacent to the Cow vein.

In 2014 work program the Tchaikazan Resources Inc (Susan Rolston) comprised geochemical sampling of 27 rocks and 5 C-horizon soils from the Butler Lake area, Bornite Zone and Noranda Pits (Assessment Report 35049).

In April-May 2015, the Tchaikazan Resources Inc work program included prospecting in the West Butler Creek area just upstream from the confluence of East and West Butler Creeks (Assessment Report 35754). Fifteen samples, six grabs and nine chips, were collected for assay from gossanous outcrops exposed along the deeply incised cliff faces bounding West Butler Creek. In addition, a review of mineralized structures in the “Pretty Pile” area, the Painted Bluffs and the Slide area was undertaken to more accurately locate and orient the local copper/gold and molybdenum mineralization.

In October 2015, Tchaikazan established the Pie Grid with the cutting of 8.3 kilometres of gridline and trail in preparation for 5.8 kilometres of induced polarization (I.P.) and 4.6 kilometres of magnetometer surveying that later defined a moderate chargeability/resistivity anomaly (Assessment Report 36102). The newly acquired Math claim was prospected and two rock samples were sent for assay. Two rock sample locations in the vicinity of West Butler Creek were resurveyed using GPS.

The 2016 geochemical program Tchaikazan Resources Inc. consisted of the collection of 33 soil samples and produced a coincident copper/arsenic/antimony geochemical anomaly over the geophysical anomaly defined in the 2015 program (Assessment Report 36772). Mapping along the Hayfield Bluff (BL7-3 (092N 071)) indicated a possible mineralized system in the vicinity of the Painted Bluff copper showing and diamond drill hole BL07-08. Mapping was also done on the Pie Grid.

In 2017 and 2018 Tchaikazan Resources Inc. conducted a field program comprised the collection of 14 rock samples and 234 soil samples in the are just south of Butler Lake, about 1 kilometre southeast of the Bu prospect (092N 030) (Assessment Report 37746). The soil geochemical program identified two moderate copper/arsenic/antimony anomalies. One over 100 metres and a two-station anomaly on the southwest end of the talus traverse TT18002 and TT18003. A weaker copper/arsenic/antimony anomaly is located at the west end of line 95+00N.

In 2019, rock geochemical and geological mapping was completed on the BLUFF, SOUTH BUTLER, BUTTS2, BLAKE S and BLAKE EXT claims by Tchaikazan Resources Inc. A total of 25 rocks were sampled of which 21 were sent for assay. Geologic mapping was carried out on 18 locations as the samples were collected. The program was successful in extending a copper-rich tourmaline breccia from its discovery outcrop to 500 metres to the north-west along a 330-to 340-degree trend along the Hayfield Bluffs. Sampling in the area of the Painted Bluff extended that mineralized zone some 150 metres to the south-east along a 135-degree trend. Also, 550 metres to the east of the Painted Bluff, the Slide zone sampling returned a 0.136 per cent copper, 22.9 grams per tonne lead, and 1.15 grams per tonne silver assay from outcrop that previously returned anomalous molybdenum tenors (Assessment Report 38580). On the BLAKE EXT claim, staked in 2019, rock sample # 36 returned an assay of 0.186 per cent copper and 2.44 grams per tonne silver indicating similar mineralization to the Math showing located 1300 metres to the north-northeast (Assessment Report 38580). Sampling along a gossanous ridge in the St. Teresa area, located approximately 550 metres west of Butler Lake, returned two samples anomalous in copper; RM19005 at 0.0461 per cent and RM19007 at 0.0433 per cent copper (Assessment Report 38580).

In 2020, Rolston had a geophysical interpretation report completed on the Bluff Copper-Gold property (Assessment Report 39146). S.J.V. Consultants Ltd. was retained to evaluate historical geophysical data, including an airborne magnetic, VLF-EM and EM survey data, acquired by Aerodat Limited in 1989 and several vintages of induced polarization data gathered by various companies and contractors from 1990 to 2006.

See MAC (092N 054), Newmac (092N 054) and BU (092N 030) for related geological and work history details.

Bibliography
EMPR EXPL 1988-C129,130
GSC OF 1163
GSC P 68-33
GSC MAP 5-1968; 1713A

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