TORONTO, CANADA – May 29, 2013 – Mr. George A. Brown, President of MacMillan Minerals Inc. (TSX-V: MMX), is very pleased to announce that the Company has received the title documents for each of the five concessions being sought by the Company. Applications for these five concessions were originally filed by the Company through the normal staking process. Due to competing applications filed by other interested parties on the same day as these claims became available for staking, the concessions became subject to the regulatory lottery process. These five concessions have been awarded to the Company as the winner of this lottery process.
The five concessions cover an area of 1,036 hectares in the state of Nayarit. These concessions have been added to the Company’s Las Cucharas Project bringing the size of this project to eighteen concessions covering 4,679 hectares. The Las Cucharas Gold and Silver Project is situated in the northern part of Nayarit State in Mexico. Additional information regarding the Las Cucharas Project is available in a Technical Report dated February 27, 2012 written by R.A. Lunceford, M.Sc. CPG, titled “Geological Report and Summary of Field Examination, Las Cucharas Project” as filed on SEDAR on March 29, 2012. The Las Cucharas Project covers a series of generally northwest trending vein structures which occur mainly within a six kilometre long by two kilometre wide mineralized corridor.
The Company is pleased to report on four diamond drill holes completed on the concessions covered by these five new titled concessions. Figure 1 shows the location of the four drill holes. These four core holes were collared to test vein and structural zones on the La Union targets (holes EC-01 and LU-01) and on the Nuevo Cucharas Target (holes NC-01 and NC-01A).
Mr. George A. Brown, President, states: “We have anxiously awaited these titles and now have these very encouraging drill results which add further evidence to our concept that the six kilometre long by two kilometre wide corridor within our Las Cucharas Project is widely mineralized with excellent potential to host a significant resource of gold and silver. These four drill holes have provided us with individual sample results up to 28.879 g/t Au (1.0 metre sample ECB-129 from Hole EC-01), up to 141.6 g/t Ag (1.5 metre sample NCB-226 from Hole NC-01A), and up to 2.15% Cu (0.3 metre sample NCB-79 from Hole NC-01). The mineralization has shown itself to be widespread. (Example: the mathematical weighted average grade of all 19 samples in Hole LU-01 for the 23.7 metres between 64.30 metres and 88.00 metres, including several samples reporting minimal Au and Ag, is 0.651 g/t Au and 43.7 g/t Ag.)”
La Union Targets
This area is located near the central part of the Las Cucharas Project. At the La Union target, a historical 70 metre cross-cut was driven to exploit a quartz vein along a 25 metre drift within a quartz stringer vein system which strikes west-northwest and dips 70 degrees southwest. Wall rocks exhibit strong brecciation with quartz veining and silicification and with moderate to strong iron oxide and clay alteration. The zone has been traced with confidence over a strike length of 200 metres. Local wall rocks consist of andesite, rhyodacite and lithic breccias. Sampling from the workings reported 3.429 g/t Au and 233.8 g/t Ag over 1.7 metres estimated true width, as well as 1.58 g/t Au and 104.0 g/t Ag over 3 metres from the vicinity of the vein. Also a northeast trending, crosscutting structure encountered in the adit assayed 7.2 g/t Au and 624.8 g/t Ag over 1.7 metres.
The El Cardon vein is located approximately 100 metres east of La Union. It trends north-northwest, sub-parallel to the La Union zone, and dips steeply variably from southwest to northeast. Wall and country rocks are the same units as at La Union, and include andesite, rhyodacite and lithic breccia units. The zone consists of a quartz vein and fault splays generally less than one metre wide; however, alteration consisting of weak to moderate silicification and moderate to strong iron oxide and argillization extend 15 to 40 metres outward from the vein. The principal workings consist of a collapsed stope or shaft, now represented on surface by a depression about 10 metres in width which has been historically reported to reach depths of 115 metres, as well as a now inaccessible adit, located approximately 220 metres northwest of, and topographically below the shaft collar. Only wall rock remnants of the vein are exposed consisting of variably silicified fault breccias and argillized gouge. The zone has been traced for a distance of approximately 450 metres on surface, disappearing under younger volcanic cover to the southeast, where it may potentially intersect the La Union vein. The El Cardon vein was extensively exploited, and was mined as recently as the early 1990’s with the mineralized rock directly shipped to a smelter in Torreon, Coahuila.
Along an 80 metre strike segment, MacMillan geologists completed five chip sample lines (25 samples) across the El Cardon vein near the historic workings. Sample results yielded the following notable values (widths are estimated true widths).
-2.65 g/t Au and 120 g/t Ag over 4.75 metres
-6.18 g/t Au and 376 g/t Ag over 4.7 metres
-3.49 g/t Au and 329 g/t Ag over 4.1 metres
-2.15 g/t Au and 105 g/t Ag over 2.0 metres
-0.54 g/t Au and 134 g/t Ag over 1.2 metres
Drill hole LU-01 was collared directly under the La Union working to test the fault-vein zone at a vertical depth of approximately 70 metres (see Figure 2). The hole was drilled for 175.9 metres in length and it initially encountered porphyritic andesite and andesitic lapilli tuff. The hole ended in 53 metres of rhyolitic tuff. The depth extension of the La Union vein at surface was intersected from 64.30 to 78.60 metres and consists of quartz veins and breccia zones with minor pyrite, galena and sphalerite.
——————————————————————-
|La Union Hole |From (m)|To |Intercept |Estimated |Au |Ag |
|LU-01 175.90 | |(m) |Width (m)|True Width|g/t |g/t |
|metres (m) | | | |(m) | | |
|—————————————————————–|
|Intercept 1 |14.05 |15.50|1.45 |NYD |0.088|40.2|
|—————————————————————–|
|Intercept 2 |24.75 |25.75|1.00 |0.8 |0.224|46.4|
|—————————————————————–|
|Intercept 3 – |64.30 |78.60|14.30 |14.0 |0.858|44.3|
|Main Vein | | | | | | |
|—————————————————————–|
| Which |64.30 |73.50|9.20 |9.0 |1.252|57.4|
|includes | | | | | | |
|—————————————————————–|
| |64.30 |69.00|4.70 |4.6 |2.154|46.0|
|Which in turn | | | | | | |
|includes | | | | | | |
|—————————————————————–|
| |64.30 |67.50|3.20 |3.1 |3.093|36.5|
| Which in turn | | | | | | |
|includes | | | | | | |
|—————————————————————–|
|Intercept 4 -Main|83.00 |88.00|5.00 |4.6 |0.601|77.7|
|Vein | | | | | | |
——————————————————————-
*NYD represents estimated true width not yet determined
Drill Hole LU-01 reported mineralization in numerous of the one hundred twenty nine (129) samples covering the 175.90 metres drilled. Twenty six (26) of the samples reported 0.100 or higher g/t Au including fifteen (15) samples reporting 0.200 or higher g/t Au. Twenty eight (28) samples reported 5.0 or higher g/t Ag including eighteen (18) samples reporting 10.0 or higher g/t Ag.
Drill hole EC-01 was designed to test the vein structural zone approximately 220 metres north-northwest of the principal El Cardon shaft and was drilled to 280.85 metres in length (see Figure 3). Disseminated sulfides associated with a hydrothermal breccia were encountered in the interval from 101.3 metres to 129.3 metres. A second interval from 203.05 metres to 269.5 metres consists of quartz veinlets in moderately silicified andesite with occasional disseminated sulfides.
——————————————————————
|El Cardon |From |To |Intercept |Estimated |Au |Ag |Zn % |
|Hole EC-01 |(m) |(m) |Width (m)|True Width|g/t |g/t | |
| 280.85 | | | |(m) | | | |
|metres (m) | | | | | | | |
|—————————————————————-|
|Intercept 1|119.80|127.20|7.40 |NYD |0.398|35.8|NSV |
|—————————————————————-|
| Which |121.30|125.70|4.40 |NYD |0.459|53.3|NSV |
|includes | | | | | | | |
|—————————————————————-|
|Intercept 2|149.75|151.95|2.20 |1.7 |0.823|15.3|NSV |
|—————————————————————-|
|Intercept 3|157.50|165.00|7.50 |5.7 |4.427|8.4 |0.243|
|—————————————————————-|
| Which |157.50|161.00|3.50 |2.7 |9.116|16.4|0.422|
|includes | | | | | | | |
|—————————————————————-|
|Intercept 4|210.50|212.95|2.45 |NYD |0.825|79.2|NSV |
|—————————————————————-|
|Intercept |246.00|253.00|7.00 |5.3 |0.471|1.2 |NSV |
|5- Main | | | | | | | |
|Vein | | | | | | | |
|—————————————————————-|
| Which |246.00|247.50|1.50 |1.1 |1.266|4.8 |NSV |
|includes | | | | | | | |
|—————————————————————-|
| And |251.65|253.00|1.35 |1.0 |0.555|NSV |NSV |
|also | | | | | | | |
|includes | | | | | | | |
——————————————————————
*NYD represents estimated true width not yet determined
**NSV represents no significant values to report
Drill Hole EC-01 reported mineralization in numerous of the two hundred six (206) samples covering the 280.85 metres drilled. Fifty two (52) of the samples reported 0.100 or higher g/t Au including twenty eight (28) samples reporting 0.200 or higher g/t Au. Sixteen samples (16) samples reported 5.0 or higher g/t Ag including eleven (11) samples reporting 10.0 or higher g/t Ag. The intersection from 157.50 to 165.00 metre which yielded 4.427 g/t Au and 8.4 g/t Ag over an estimated true width of 5.7 metres correlates with a surface sample which reported 32.870 g/t Au and 76.0 g/t Ag over a true width of 1.1 metres.
Nuevo Cucharas Target
This target is located approximately 2.25 kilometres south-southeast of the La Union Target described above. The target zone is not exposed, as the old underground workings have caved-in. The surface expression currently consists of a 10 metre wide depression trending north-northwest which has been traced over a strike length of 250 metres; however, the underground working reportedly connect with the El Jocuixtle target located 300 metres further south-southeast. Consequently no samples of the actual mined vein have been obtained, but four samples collected from a hand dug trench reported 0.156 g/t Au and 256.5 g/t Ag over a width of 3.6 metres. Approximately 75 metres north-northeast of this trench near the main part of the old workings, two samples of wall rock yielded 0.709 g/t Au and 807.1 g/t Ag over 1 metre and 18.994 g/t Au and 317.3 g/t Ag over 0.3 metres.
An initial drill hole (NC-01) was collared in the central part of the Nuevo Cucharas target but was lost at a depth of 122.65 metres in highly fractured andesitic tuff. Since this hole was not completed to the depth of the target, it was only sampled and assayed from 63.00 metres down to the end of the hole at 122.65 metres.
——————————————————————–
|Nuevo |From |To |Intercept|Estimated |Au |Ag |Cu % |Zn % |
|Cucharas |(m) |(m) |Width (m)|True Width|g/t |g/t | | |
|Hole NC-01| | | |(m) | | | | |
| 122.65 | | | | | | | | |
|metres (m)| | | | | | | | |
|——————————————————————|
|Intercept |93.80|94.20|0.40 |NYD |0.033|61.8|1.787|0.232|
|1 | | | | | | | | |
|——————————————————————|
| Which |93.80|94.10|0.30 |NYD |0.030|71.5|2.150|0.225|
|includes | | | | | | | | |
——————————————————————–
*NYD represents estimated true width not yet determined
A second hole, NC-01A, was drilled from the same drill pad and penetrated andesitic tuff and andesite, with the last 1.25 metres representing rhyolitic tuff to a final depth of 179.4 metres (see Figure 4). Commencing at 97.2 metres, an interval of highly fractured and brecciated andesitic tuff with weak silicification and clay alteration, and local quartz fragments and veining with occasional moderate pyrite and weak chalcopyrite mineralization was intersected. This material was followed by a fault zone with poor core recovery starting at 121.65 metres. This fault appears to represent the down-dip extension of the Nuevo Cucharas target main vein as defined at surface.
———————————————————————-
|Nuevo |From |To |Intercept|Estimated |Au |Ag |Cu % |Zn % |
|Cucharas |(m) |(m) |Width (m)|True Width|g/t |g/t | | |
|Hole | | | | (m) | | | | |
|NC-01A | | | | | | | | |
|179.40 m | | | | | | | | |
|——————————————————————–|
|Intercept| |100.20|3.00 |NYD |0.079|34.2 |0.450|0.214|
|1 |97.20 | | | | | | | |
|——————————————————————–|
|Intercept|141.00|146.00|5.00 |4.0 |0.286|26.2 |NSV |0.220|
|2 – Main | | | | | | | | |
|Vein | | | | | | | | |
|——————————————————————–|
|Intercept|168.50|171.50|3.00 |NYD |0.192|75.8 |NSV |NSV |
|3 | | | | | | | | |
|——————————————————————–|
| Which |168.50|170.00|1.50 |NYD |0.338|141.6|NSV |NSV |
|includes | | | | | | | | |
———————————————————————-
*NYD represents estimated true width not yet determined
**NSV represents no significant values to report
The core was split and samples of the core were shipped to Inspectorate Assay Laboratory, for preparation in Durango, Mexico and analysis in Reno, Nevada. Analyses were carried out for gold (30 gram sample fire assay with an AA finish), as well as a multi-element ICP analytical package. Under this standard assay package, if any gold values report over 10 g/t or if any silver values report over 100 g/t, then those samples are assayed by fire assay with a gravimetric finish. A rigorous quality assurance/quality control program is in place, with certified standard and blank samples inserted in every batch of 20 samples.
Mr. William Hamilton, P. Geo., Manager of Exploration, is a Qualified Person under the meaning of National Instrument 43-101 and is responsible for the technical information contained in this news release.
MacMillan is an exploration company with a focus on gold and silver exploration on numerous properties in Mexico. Additional information on the Company can be viewed at www.sedar.com
For additional information, contact: Tel: (416) 867-1101 Fax: (416) 867-1222
Email: [email protected]
Neither the TSX Venture Exchange nor its Regulation Service Provider accepts responsibility for the adequacy or accuracy of this release
Figure 1 – Sketch map showing locations of drill holes EC-01, LU-01, NC-01, and NC-01A
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http://thenewswire.ca/client_files/2013-05-29-0.pdf
Figure 2 – Vertical section of drill hole EC-01 with intercepts projected to surface
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http://thenewswire.ca/client_files/2013-05-29-1.pdf
Figure 3 – Vertical section of drill hole LU-01 with intercepts projected to surface
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http://thenewswire.ca/client_files/2013-05-29-2.pdf
Figure 4 – Vertical section of drill hole NC-01A with intercepts projected to surface
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