Bayfield Drills 79.50m of 8.66 g/t Gold and 57.67 g/t Silver Including 11.2m of 60.05 g/t Gold and 362.96 g/t Silver at Rainy River, NW Ontario
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VANCOUVER, BRITISH COLUMBIA--(June 27, 2011) - Bayfield Ventures Corp. (TSX VENTURE:BYV)(FRANKFURT:B4N) (the "Company") is pleased to announce a major gold and silver intercept on its 100% owned Burns Block property in the Rainy River District of north-western Ontario. The Burns Block is situated adjacent to the east and on strike to Rainy River Resources multi-million ounce gold deposit.
Rainy River gold properties claims map:
Highlights:
Initial results from Far North Fence Drilling include 79.50m of 8.66 g/t Au and 57.67 g/t Ag (starting at a down hole depth of 15.5m) including a bonanza grade zone of 11.20m of 60.05 g/t Au and 362.96 g/t Ag in hole RR11-71 (see chart below).
This new bonanza grade intercept in hole RR11-71 falls within the up-plunge projection of the modeled mineralized shoot. The total linear plunge distance between the bonanza grade zones in holes RR10-18 and RR11-71 is approximately 600m.
The new drill fence, known as the Far North Fence, is an east-west exploratory fence that has been established in a position 60m north of the existing North Fence. The purpose of the new fence is to test the near surface portion of the mineralized zone that has only partially been delineated on the Burns Block to date.
The second Far North Fence drill hole returned 43.8m of 1.02 g/t Au and 28.15 g/t Ag including 9.0m of 3.25 g/t Au and 96.34 g/t Ag in hole RR11-70.
Additional drilling to the west and east along the new Far North Fence is progressing rapidly while the other two drill rigs continue to expand the South, Central and North Fences.
Assays are pending for fifteen additional holes.
Discussion of Results from Hole RR11-71:
The Far North Fence has been planned for several months and represents an aggressive drill exploration program focused in the near surface, up-dip portion of the partially delineated gold-silver mineralized zone at the Burns Block. The position of the high grade gold and silver zones discovered by Bayfield last year in holes RR10-15 and RR10-18 strongly suggested that the rich mineralization was confined to a SSW plunging shoot of very similar geometry to other high grade zones roughly outlined by Rainy River Resources to the west of the Burns Block. Previously released hole RR10-18 intersected 35.93 g/t Au and 359.65 g/t Ag over 10.0 metres while hole RR10-15 intersected 12.88 g/t Au and 39.26 g/t Ag over 9.0 metres.
The new bonanza grade intercept in hole RR11-71 falls within the up-plunge projection of the modeled mineralized gold-silver shoot on the western portion of the property thereby expanding the known high grade zone to the northeast. The total linear plunge distance between the bonanza grade zones in RR10-18 and RR11-71 is approximately 600 metres. The continuity of mineralization within this shoot has been difficult to establish but continued success strongly supports the presence of a discrete structural zone which hosts significant high grade gold-silver mineralization in a SSW-NNE orientation.
Updated Burns Block drilling exploration map:
The new high grade intercept in hole RR11-71 lies within a broad halo of sub-gram level to multi-gram level gold and silver mineralization that is contained within the well-established west-east trending zone of strong foliation, sericite alteration, locally intense deformation and highly variable pyrite mineralization. This pattern of high grade zones lying within lower grade mineralized halos has been seen at the Burns Block many times during the continuing exploration and delineation drill program.
Gold and silver assays from the wide mineralized interval in hole RR11-71 are presented in summary form in the table below. The true width of the zone in RR11-71 is estimated to be approximately 70%-80% of the listed down hole interval lengths.
Gold and Silver Assay Results from Far North Fence Hole RR11-71:
Drill
Hole
From
(m)
To
(m)
Interval
(m)
Au
(g/t)
Ag
(g/t)
AuEq
(g/t)
RR11-71
15.50
95.00
79.50
8.66
57.67
10.03
including
38.00
90.60
52.60
13.07
85.70
15.11
including
46.00
61.00
15.00
45.24
281.03
51.93
including
47.80
59.00
11.20
60.05
362.96
68.69
Individual Gold and Silver Assay Results from the High Grade Core in RR11-71:
The table below displays the consecutive individual samples which together comprise the 11.2 metre core section of the high grade mineralized zone in hole RR11-71.
Drill
Hole
From
(m)
To
(m)
Interval
(m)
Au
(g/t)
Ag
(g/t)
AuEq
(g/t)
RR11-71
47.80
48.60
0.80
224.00
86.90
226.07
and
48.60
50.00
1.40
6.49
52.20
7.73
and
50.00
51.00
1.00
19.90
82.10
21.85
and
51.00
52.00
1.00
114.00
830.00
133.76
and
52.00
53.00
1.00
105.00
1220.00
134.05
and
53.00
54.00
1.00
59.20
211.00
64.22
and
54.00
55.00
1.00
43.10
35.00
43.93
and
55.00
56.00
1.00
27.20
46.50
28.31
and
56.00
57.00
1.00
38.30
308.00
45.63
and
57.00
58.00
1.00
68.10
1100.00
94.29
and
58.00
59.00
1.00
9.47
90.00
11.61
* g/t = grams per metric tonne
* AuEq (g/t) values calculated at the current 42 to 1 (gold price vs. silver price) ratio and metallurgical recoveries and net smelter returns are assumed to be 100%
Detailed Mineralogy of the RR11-71 Intercept:
A detailed description of the mineralization in RR11-71 has been excerpted from a summary log made during the initial stages of logging of the discovery:
"A ten to twelve metre wide zone of high grade mineralization is apparent in hole RR11-71, maybe 40 to 50 electrum sites seen thus far in a bonanza looking zone of intense sphalerite-galena-chalcopyrite mineralization of the foliated dacite host rock. Zone runs roughly from 47m to 58m down hole, maybe wider. The noted electrum sites consist of easily visible crack fills, clusters of grains and as ladder veinlets cutting across grey quartz veinlets. Most electrum seen so far is occurring in numerous centimetre to decimetre-scale grey to white quartz veinlets, both lying in and cross cutting the foliation. The veinlets are deformed and highly discontinuous but are numerous enough to give the impression of being breccias infill silica rather than true veinlets. The electrum bearing intervals are surrounded by dense webs of dark brown sphalerite and associated galena and chalcopyrite. The noted electrum is very pale to nearly as white as native silver. Rarely, it has a bronze sheen when smeared but is never bright yellow."
The logging of the pale, smeared material as electrum is fully supported by fire and total metallic gold assays of the zone. The details of the mineralogy of the silver mineralization have not been confidently established. The logged amounts of electrum can likely explain the silver values that are less than 300 g/t. The much higher values seen in several of the individual samples in this zone strongly suggest silver is also occurring as a sulfide, either within argentiferous galena or as a primary silver sulfide. It is also likely that some of the bright white native metal logged as electrum could be nearly pure native silver.
Other Results from the Central, North and Far North Fence Drilling:
The following table summarizes a series of holes which have been received since the last news release. Note that the list of hole numbers in the table contain gaps due to delays in assays being completed.
Drill
Hole
From
(m)
To
(m)
Interval
(m)
Au
(g/t)
Ag
(g/t)
AuEq
(g/t)
Drill
Fence
Dip
(Deg.)
Az.
(Deg.)
RR11-43
114.90
122.55
7.65
0.49
12.17
0.78
North
55
1.5
RR11-44
371.00
374.00
3.00
0.42
0.80
0.44
Central
80
358
RR11-45
134.70
154.55
19.85
0.39
10.62
0.64
North
70
1.5
including
153.00
154.55
1.55
1.28
2.50
1.34
RR11-53
267.50
269.00
1.50
1.92
65.50
3.48
Central
80
0
