Rockgate Expands High-Grade Plateau Edge Structure, Falea Uranium-Silver-Copper Project, Mali; Including 1m @ 2.01% U3O8, 420 g/t Ag and 1.73% Cu

Marketwired

VANCOUVER, BRITISH COLUMBIA--(Marketwire -04/26/12)- Rockgate Capital Corp. (RGT.TO - News) (the "Company") is pleased to announce assay results from twenty two infill and step-out diamond drill holes completed along five sections across the northern portion of the northwest-trending Plateau Edge Structure (PES). The PES is a major mineralized structural zone within the North Zone at Rockgate's 100% owned Falea Project. Drill holes and sections are spaced every 25 metres. Highlights of the program are presented in Table 1.

 

Table 1: Drill Highlights

----------------------------------------------------------------------------
Section Hole From To Length U3O8% Ag Cu
North Name (m) (m) (m) XRF (g/tonne) %
----------------------------------------------------------------------------
1 360 600N DF-442 197.2 200.2 3.00 0.90 182.3 1.00
----------------------------------------------------------------------------
incl 198.2 199.2 1.00 2.01 420.0 1.73
----------------------------------------------------------------------------
DF-445 194.0 197.0 2.91 0.10 368.3 0.43
----------------------------------------------------------------------------
1 360 575N DF-455 195.1 198.0 2.90 0.32 236.7 0.40
----------------------------------------------------------------------------
DF-458 197.1 204.1 7.00 0.22 55.6 0.45
----------------------------------------------------------------------------
1 360 550N DF-470 205.3 212.0 6.70 0.18 20.7 0.22
----------------------------------------------------------------------------
1 360 525N DF-474 197.8 200.6 2.80 0.08 184.9 0.36
----------------------------------------------------------------------------
1 360 500N DF-476 205.8 216.0 10.20 0.16 10.2 0.38
----------------------------------------------------------------------------

All reported intervals are true lengths.

The PES step-out drill program was designed to:

 

1. Extend the limits of the highest grade resource area at Falea.
2. Better understand the sedimentology and structural geology controlling
PES.
3. Provide detailed resource modelling for ongoing mine planning. PES has
been identified as a resource likely to be exploited early in any
potential mine plan.
4. Upgrade Indicated resources to Measured category.

Drilling stepped out to both the west and east of the identified high-grade mineralization, extending those high grades, particularly high silver values, and above average thicknesses. In particular, intersections to the west of PES indicate high grades extend at least 100 metres west of the boundary of the current measured resource. The "measured resource" being that defined in the Company's independent NI 43-101 resource calculation announced January 16, 2012. Step-out drilling along the entire PES continues to the east and south.

Section 1 360 600 N

Four diamond drill holes, DF-442, DF-445, DF-447, and DF-450, stretched from the western boundary of the "measured resource" almost 200 metres to the west. Just inside the boundary, DF-442 intersected uranium, silver, and copper grades over 3.0 metres that are far above deposit averages. (Tables 1 & 2) Fifty metres west of DF-442, DF-445 intersected 0.10% U3O8, 368 g/t Ag, and 0.43% Cu over 2.91 metres true thickness. Silver grades continue high in DF-447, at 115.5 g/t over 3.0 metres, another 50 metres to the west. Stepping another 100 metres west, DF-450 intersected 0.52% U3O8 and 40.0 g/t Ag over 1.2 metres.

 

Table 2: Section 1 360 600N

----------------------------------------------------------------------------
From To Length U3O8% Ag Cu
Hole Name (m) (m) (m) XRF (g/tonne) %
----------------------------------------------------------------------------
DF-450 214.7 215.9 1.16 0.52 40.0 0.11
----------------------------------------------------------------------------
DF-447 188.5 191.5 3.00 0.09 115.5 0.31
----------------------------------------------------------------------------
incl 188.5 189.5 1.00 0.21 328.0 0.75
----------------------------------------------------------------------------
DF-445 194.0 197.0 2.91 0.10 368.3 0.43
----------------------------------------------------------------------------
incl 195.0 197.0 1.94 0.12 331.0 0.29
----------------------------------------------------------------------------
DF-442 197.2 200.2 3.00 0.90 182.3 1.00
----------------------------------------------------------------------------
incl 198.2 199.2 1.00 2.01 420.0 1.73
----------------------------------------------------------------------------
DF-485 201.8 202.3 0.50 0.04 71.0 1.46
----------------------------------------------------------------------------
DF-487 194.9 198.0 3.10 0.03 86.3 0.10
----------------------------------------------------------------------------
incl 194.9 195.7 0.80 0.04 325.0 0.34
----------------------------------------------------------------------------

Section 1 360 575 N

Two diamond drill holes, DF-452 and DF-455, drilled at the western boundary of the "measured resource", intersected strong uranium, silver, and copper grades. (Table 3) At the eastern boundary, DF-458 and DF-460 intersected 7.0 metres and 6.3 metres of high-grade mineralization. Stepping at 25-metre intervals to the east, thicknesses are good with lower uranium and increasing silver grades. In Table 2, drill holes are listed from west to east.

 

Table 3: Section 1 360 575N

----------------------------------------------------------------------------
From To Length U3O8% Ag Cu
Hole Name (m) (m) (m) XRF (g/tonne) %
----------------------------------------------------------------------------
DF-452 197.1 200.7 3.60 0.27 50.7 0.37
----------------------------------------------------------------------------
incl 198.0 198.9 0.90 0.39 42.0 0.40
----------------------------------------------------------------------------
DF-455 195.1 198.0 2.90 0.32 236.7 0.40
----------------------------------------------------------------------------
DF-458 197.1 204.1 7.00 0.22 55.6 0.45
----------------------------------------------------------------------------
incl 201.6 204.1 2.50 0.40 54.4 0.80
----------------------------------------------------------------------------
and 202.5 203.5 1.00 0.66 52.0 0.89
----------------------------------------------------------------------------
DF-460 194.8 201.1 6.30 0.12 20.7 0.17
----------------------------------------------------------------------------
incl 199.9 201.1 1.20 0.29 44.0 0.58
----------------------------------------------------------------------------
DF-463 195.0 202.4 7.40 0.06 19.7 0.28
----------------------------------------------------------------------------
incl 197.0 198.0 1.00 0.12 65.5 0.47
----------------------------------------------------------------------------
DF-465 198.2 202.0 3.76 0.05 32.6 0.24
----------------------------------------------------------------------------
incl 201.4 202.0 0.59 0.16 78.0 1.04
----------------------------------------------------------------------------
DF-468 201.2 205.4 4.07 0.08 76.0 0.09
----------------------------------------------------------------------------
incl 201.2 201.7 0.47 0.09 635.0 0.02
----------------------------------------------------------------------------

Section 1 360 550 N

Four diamond drill holes were completed on the west side of section 1 360 550N. The westernmost hole, DF-492 intersected high grades including 262 g/t Ag over 1.9 metres. Fifty metres east, DF-490 intersected 0.09% U3O8 and 65.7 g/t Ag over 2.9 metres. 50 metres east, DF-472 intersected 0.7 metres of mineralization within 50 metres of the "measured resource" boundary. At the boundary, DF-470 intersected 6.7 metres of mineralization, suggesting local variability in both grade and thickness away from the core of the PES.

 

Table 4: Section 1 360 550N

----------------------------------------------------------------------------
From To Length U3O8% Ag Cu
Hole Name (m) (m) (m) XRF (g/tonne) %
----------------------------------------------------------------------------
DF-492 194.0 195.9 1.90 0.18 262.0 0.63
----------------------------------------------------------------------------
DF-490 196.6 199.5 2.90 0.09 65.7 0.22
----------------------------------------------------------------------------
incl 197.1 198.2 1.10 0.16 161.0 0.29
----------------------------------------------------------------------------
DF-472 198.6 199.3 0.70 0.06 48.0 0.49
----------------------------------------------------------------------------
DF-470 205.3 212.0 6.70 0.18 20.7 0.22
----------------------------------------------------------------------------
incl 207.3 209.1 1.80 0.42 25.1 0.31
----------------------------------------------------------------------------
and 210.9 212.0 1.10 0.29 60.0 0.26
----------------------------------------------------------------------------

Section 1 360 525 N

Only one diamond drill hole was completed on section 1 360 525N. DF-474 intersected very high silver grades concentrated in a one-metre interval, and 0.08% U3O8 and 184.9 g/t Ag over 2.8 metres. More holes are planned both to the east and west of the PES.

 

Table 5: Section 1 360 525N

----------------------------------------------------------------------------
From To Length U3O8% Ag Cu
Hole Name (m) (m) (m) XRF (g/tonne) %
----------------------------------------------------------------------------
DF-474 197.8 200.6 2.80 0.08 184.9 0.36
----------------------------------------------------------------------------
incl 198.8 199.8 1.00 0.15 455.0 0.51
----------------------------------------------------------------------------

Section 1 360 500 N

Four diamond drill holes were completed immediately west of the "measured resource" boundary. All four intersected thick intervals of strong uranium and copper mineralization but moderate silver grades. Holes are planned to the east.

 

Table 6: Section 1 360 500N

----------------------------------------------------------------------------
From To Length U3O8% Ag Cu
Hole Name (m) (m) (m) XRF (g/tonne) %
----------------------------------------------------------------------------
DF-476 205.8 216.0 10.20 0.16 10.2 0.38
----------------------------------------------------------------------------
incl 206.3 207.3 1.00 0.22 24.0 0.41
----------------------------------------------------------------------------
and 215.0 216.0 1.00 0.97 40.0 0.90
----------------------------------------------------------------------------
DF-479 206.9 210.9 4.00 0.12 40.5 0.30
----------------------------------------------------------------------------
incl 210.1 210.9 0.80 0.41 9.6 0.62
----------------------------------------------------------------------------
DF-480 206.4 212.0 5.60 0.08 65.7 0.41
----------------------------------------------------------------------------
or 207.0 211.3 4.30 0.09 80.8 0.42
----------------------------------------------------------------------------
incl 209.1 210.1 1.00 0.18 239.0 0.48
----------------------------------------------------------------------------
DF-483 202.0 207.9 5.90 0.09 22.3 0.11
----------------------------------------------------------------------------

2012 Diamond Drill Program

Rockgate's 2012 drill program comprises four diamond drills currently exploring several areas outside the current resource boundary. Drilling has resumed as announced April 25th after a shutdown during the short period of political instability following the coup d'etat in Mali on March 22, 2012.

 

1. Northeast Plateau - to continue to expand and define this new area of
mineralization.
2. Bodi Area - to confirm and expand near-surface mineralization north of
the Falea plateau with the aim of identifying potential open pit
resources and access to underground at North Zone.
3. Drilling is planned on various targets including the southern step-out
and Northwest Extension of North Zone, Central Zone step-outs, and the
Bala area. Also, a drill will be assigned to drill PQ holes around the
deposits to collect samples for comminution and ongoing metallurgical
test work.

Christopher J. Wild, P.Eng., Project Manager for Falea, is the Qualified Person for the Company under NI 43-101. All core samples are cut in half on site and sent to ALS-Chemex in Bamako for direct shipment to ALS-Chemex in Johannesburg, South Africa, for ICP-MS and XRF analysis. The Company inserts a standard, blank and requests a duplicate sample be run in every batch of 20 samples. In addition, the lab inserts in-house blanks, standards, and duplicates with each shipment. Data that falls outside the control limits are checked and repeated as necessary.

Please visit our website at www.rockgatecapital.com.

ON BEHALF OF THE BOARD OF DIRECTORS OF ROCKGATE CAPITAL CORP.

Karl Kottmeier, President

To view the map accompanying this press release, please click on the following link: http://media3.marketwire.com/docs/rgt426.pdf

Neither Toronto Stock Exchange nor its Regulation Services Provider (as that term is defined in the policies of the Exchange) accepts responsibility for the adequacy or accuracy of this release.

Contact:

Rockgate Capital Corp.
Karl Kottmeier
President
604-678-8941
Rockgate Capital Corp.
Kirk Gamley
VP Corporate Development
604-678-8941
604-689-7442 (FAX)
www.rockgatecapital.com

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