Exhibit 99.1
OROMIN | ||
Suite 2000, Guinness Tower, 1055 West Hastings Street, Vancouver, B.C. Canada V6E 2E9 | ||
EXPLORATIONS LTD. | Tel: (604) 331-8772 | Toll-free(877) 529-8475 |
Fax: (604) 331-8773 | E-mail:info@oromin.com |
January 12, 2011 | Trading Symbol: TSX – OLE |
OTC/BB - OLEPF | |
Web Site: www.oromin.com |
ADDITIONAL GOLD RESULTS FROM OJVG’S RESOURCE EXPANSION DRILLING PROGRAM INCLUDE DEEPEST INTERSECTIONS TO DATE
HIGHLIGHTS
46.04 g/t Gold over 11 metres (396 to 407 metres) in DH-927 at Golouma Westrepresents one of the highest “grade x thickness” intervals drilled thus far
Two mineralized zones of 5.54 g/t Gold over 8 metres (558 to 566 metres) and 12.2g/t Gold over 8 metres (590 to 598 metres) in DH-928 at Golouma West representthe deepest drill intersections thus far
Additional New Drill Results include:
o | 8.79 g/t Gold over 13 metres at Golouma West | |
o | 8.90 g/t Gold over 7 metres at Golouma South | |
o | 9.52 g/t Gold over 6 metres at Masato | |
o | 3.95 g/t Gold over 15 metres at Masato |
Oromin Explorations Ltd. (“Oromin”), on behalf of Oromin Joint Venture Group Limited (“OJVG”), is pleased to provide a further update to its drilling program at the OJVG Gold Project (the “Project”) in eastern Sénégal, West Africa. Drilling in the latter part of 2010 focused on resource and reserve expansion with particular emphasis (1) on Golouma Style higher grade gold deposits, and (2) on initial definition drilling of higher grade gold potential beneath the proposed open pit at the Masato deposit.
Chet Idziszek, President and CEO of Oromin, stated, “Results from our deepest drilling to date at Golouma West have confirmed excellent continuity of robust grades and favourable widths. Drilling has confirmed mineralization in multiple zones to at least 600 metres in depth, which is more than twice the average depth of 250 metres to which the reserves were calculated in the July 2010 Feasibility Study. Based on our drilling to date, all of the mineralized zones at the Golouma Style deposits remain open to depth and along strike.”
The new drill results, along with those previously reported in Oromin’s December 1 and December 15, 2010 news releases are listed below and detailed with included intervals in Appendix A. These drill results further confirm the continuity of mineralization and increasing expansion potential for those higher grade Golouma Style deposits down-dip and below the limits of the resource/reserve block model used for the July 2010 Feasibility Study. The reserves from the Golouma Style Deposits in the July 2010 Feasibility totalled 960,000 ounces (7.4 million tonnes at 4.06 g/t Au) while indicated resources totalled 1.2 million ounces (10.5 million tonnes at 3.59 g/t Au) and an additional 149,000 inferred ounces (1.1 million tonnes at 4.15 g/t Au) – See our July15, September 22 and November 18, 2010 News Releases and our November 9, 2010 Short Form Prospectus for details.
Of particular note are drill holes DH-925, DH-927, DH-928, DH-932 and DH-935 which represent some of the deepest intersections to date at the Golouma West deposit. DH-927 intersected 46.04 g/t gold over 11 metres at 396 metres representing one of the highest “grade x thickness” intervals from drilling thus far. Hole DH-928 intersected two gold zones at depth, 5.54 g/t gold over 8 metres at 558 metres and the deepest drill intersection to date, 12.2 g/t gold over 8 metres at 590 metres. Assay highlights from drilling include:
New Results | Previously Reported |
Golouma South | Kerekounda |
8.90 g/t Au over 7 m in DH-929 | 4.13 g/t Au over 14 m in DH-896 |
10.05 g/t Au over 14 m at in DH-900 | |
Golouma West | 6.90 g/t Au over 7 m in DH-903 |
9.78 g/t Au over 3 m in DH-919 | 21.20 g/t Au over 2 m in DH-908 |
4.36 g/t Au over 16 m in DH-925 | Golouma West |
46.04 g/t Au over 11 m in DH-927 | 5.41 g/t Au over 19 m in DH-901 |
5.54 g/t Au over 8 m in DH-928 | 26.87 g/t Au over 4 m in DH-905 |
12.20 g/t Au over 8 m in DH-928 | 17.14 g/t Au over 14 m in DH-915 |
8.77 g/t Au over 5 m in DH-924 |
At the Masato Deposit, new results from mineralized zones below the proposed open pit continue to confirm and extend the zones of higher grade gold mineralization potentially amenable to underground mining. The Masato Deposit mineralization will be modelled as a combined Open Pit and Underground operation for the planned resource and reserve updates scheduled in Q1 and Q2 of 2011 respectively.
Key results from Masato expansion drilling include: (see Appendix B for included intervals)
New Results | Previously Reported |
2.09 g/t Au over 11 m in DH-916 | 6.94 g/t Au over 31 m in DH-895 |
4.38 g/t Au over 7 m in DH-918 | 2.44 g/t Au over 41 m in DH-897 |
2.09 g/t Au over 21 m in DH-918 | 2.41 g/t Au over 16 m in DH-899 |
3.90 g/t Au over 16 m in DH-921 | 4.12 g/t Au over 37 m in DH-906 |
3.95 g/t Au over 15 m in DH-922 | 8.02 g/t Au over 10 m in DH-906 |
9.52 g/t Au over 6 m in DH-926 | 2.79 g/t Au over 15 m in DH-909 |
2.87 g/t Au over 9 m in DH-930 | 6.52 g/t Au over 5 m in DH-913 |
The 2011 exploration drilling program has commenced and the planned Q1 resource update is now underway.
Doug Turnbull, P. Geo., is a qualified person for the purposes of National Instrument 43-101, and has verified the data disclosed in this news release. William Bond, P. Geo., is also a qualified person for the purposes of National Instrument 43-101, and has supervised geologic field procedures. TSL Laboratories in Saskatoon carried out all assaying under industry-standard QA/QC procedures.
To find out more aboutOromin Explorations Ltd., visitwww.oromin.com.
On behalf of the Board of Directors of
OROMIN EXPLORATIONS LTD.
“Chet Idziszek”
Chet Idziszek, President
Cautionary Statement |
Appendix A
Golouma Style Deposits | ||||||
Deposit | Drill Hole | Grid Co-Ordinate | Azimuth/ Dip | From - To (m) | Interval (m) | Gold Grade (g/t) |
GOLOUMA SOUTH | DH-929 | 53129N/14953E | 114/-65 | 240-247 incl.245-246 254-256 | 7 1 2 | 8.90 29.70 6.11 |
GOLOUMA WEST | DH-919 | 53307N/14654E | 015/-80 | 383-386 incl.384-385 394-400 | 3 1 6 | 9.78 22.70 3.40 |
DH-925 | 53280N/14625E | 015/-70 | 386-402 incl.386-392 | 16 6 | 4.36 8.14 | |
DH-927 | 53279N/14625E | 015/-75 | 396-407 incl.396-399 incl.398-399 | 11 3 1 | 46.04 161.31 434.60 | |
DH-928 | 53819N/14379E | 215/-65 | 204-210 incl.204-205 558-566 incl.561-564 590-598 incl.593-596 | 6 1 8 4 8 3 | 2.43 7.82 5.54 7.78 12.20 26.91 | |
DH-932 | 53290N/14614E | 015/-75 | 412-425 incl.412-417 incl.414-415 | 13 5 1 | 8.79 16.78 45.76 | |
DH-934 | 53803N/14333E | 208/-76 | 224-229 | 5 | 6.72 | |
DH-935 | 53290N/14314E | 015/-80 | 429-438 incl.429-434 incl.433-434 | 9 5 1 | 5.90 9.10 24.14 | |
RC-817 | 53682N/14298E | 099/-67 | 155-171 incl.157-166 incl.157-159 and 163-165 | 16 9 2 2 | 6.52 9.87 15.79 15.46 | |
DH-905* | 53784N/14202E | 128-62 | 55-56 142-144 280-284 incl.280-281 and 283-284 | 1 2 4 1 1 | 7.15 5.01 26.87 50.05 55.23 | |
DH-910* | 53239N/14646E | 015/-70 | 413-418 | 5 | 2.53 | |
DH-911* | 53262N/14699E | 015/-70 | 373-378 | 5 | 2.20 | |
DH-915* | 53307N/14654E | 015/-75 | 354-368 incl.354-356 and 361-363 | 14 2 2 | 17.14 39.15 63.52 | |
Appendix A (continued)
Golouma Style Deposits | ||||||
Deposit | Drill Hole | Grid Co-Ordinate | Azimuth/ Dip | From - To (m) | Interval (m) | Gold Grade (g/t) |
DH-915* | 53307N/14654E | 015/-75 | 354-368 incl.354-356 and 361-363 | 14 2 2 | 17.14 39.15 63.52 | |
DH-924* | 53753N/14368E | 213/-69 | 196-201 incl.196-198 337-344 411-438 incl.411-422 incl.414-419 incl.414-415 451-454 | 5 2 7 27 11 5 1 3 | 8.77 15.74 1.78 7.68 15.27 26.95 50.70 3.58 | |
DH-901* | 53781N/14204E | 144/-64 | 195-199 incl.198-199 315-350 incl.324-343 and 324-330 | 4 1 35 19 6 | 2.90 6.86 4.03 5.41 7.66 | |
KEREKOUNDA | DH-903* | 54445N/15344E | 055/-71 | 326-333 342-344 | 7 2 | 6.90 7.17 |
DH-908* | 54416N/15349E | 055/-71 | 328-330 incl.328-329 | 2 1 | 21.20 41.36 | |
DH-896* | 54484N/15298E | 055/-78 | 124-125 363-377 incl.363-369 | 1 14 6 | 13.75 4.13 8.26 | |
DH-900* | 54461N/15311E | 055/-71 | 334-348 incl.337-341 incl.339-340 | 14 4 1 | 10.05 29.85 67.76 | |
*Previously reported. Mineralized intervals are based on 1-metre samples utilizing 1.0 g/t gold cut-off levels with a maximum internal dilution of 2 metres. The interval from 411 to 438 in DH-924 has 5 metres of interval dilution below the 1.0 g/t gold cut-off level. The attitude of mineralized intervals varies and reported mineralized intersections may not represent true widths. | ||||||
Appendix B
Masato Deposit Results | ||||||
Deposit | Drill Hole | Grid Co-Ordinate | Azimuth/ Dip | From - To (m) | Interval (m) | Gold Grade (g/t) |
MASATO | DH-916 | 59618N/14428E | 115/-67 | 161-172 incl.168-171 235-244 incl.241-244 | 11 3 9 3 | 2.09 4.02 1.73 3.40 |
DH-918 | 59581N/14447E | 115/-67 | 191-198 206-228 incl.206-214 | 7 22 8 | 4.38 2.01 3.30 | |
DH-921 | 59613N/14451E | 118/-67 | 204-220 incl.206-212 incl.206-208 | 16 6 2 | 3.90 6.41 12.69 | |
DH-922 | 59593N/14425E | 115/-67 | 170-177 incl.171-173 227-242 incl.227-236 incl.227-228 | 7 2 15 9 1 | 2.70 6.19 3.95 6.23 30.28 | |
DH-926 | 59568N/14513E | 115/-67 | 50-52 66-72 99-109 incl.99-101 | 2 6 10 2 | 4.00 9.52 1.73 4.79 | |
DH-930 | 59562N/14530E | 115/-67 | 55-64 incl.55-59 | 9 4 | 2.87 5.63 | |
DH-902* | 59452N/14436E | 115/-82 | 186-196 incl.186-189 202-205 267-280 incl.267-270 | 10 3 3 13 3 | 2.49 4.24 1.78 2.27 4.25 | |
DH-904* | 59432N/14420E | 115/-60 | 157-161 184-193 incl.184-186 | 4 9 2 | 2.28 2.16 4.70 | |
DH-906* | 59432N/14420E | 115-70 | 207-244 incl.211-229 incl.223-229 incl.226-228 264-274 incl.271-272 | 37 18 6 2 10 1 | 4.12 7.04 14.57 35.53 8.02 55.21 | |
DH-909* | 59432N/14420E | 115/-76 | 237-241 249-268 incl.252-255 | 4 19 3 | 1.70 2.00 4.02 | |
Appendix B (continued)
Masato Deposit Results | ||||||
Deposit | Drill Hole | Grid Co-Ordinate | Azimuth/ Dip | From - To (m) | Interval (m) | Gold Grade (g/t) |
and 266-268 282-297 incl.282-292 incl.282-285 | 2 15 10 3 | 4.49 2.79 3.38 4.18 | ||||
DH-913* | 59648N/14465E | 115/-77 | 169-174 180-182 220-228 | 5 2 8 | 6.52 4.60 2.42 | |
DH-894* | 59530N/14422E | 115/-80 | 190-209 incl.204-208 252-268 incl.253-256 | 19 4 16 3 | 1.06 2.06 1.94 4.18 | |
DH-895* | 59509N/14422E | 115/-73 | 110-123 incl.115-119 incl.115-116 163-194 incl.163-167 and 178-194 incl.181-189 incl.182-183 | 13 4 1 31 4 16 8 1 | 1.80 3.29 9.12 6.94 9.71 9.95 17.11 49.04 | |
DH-897* | 59444N/14490E | 115/-68 | 62-65 103-112 incl.109-112 125-166 incl.129-130 and 137-143 incl.139-141 | 3 9 3 41 1 6 2 | 5.49 1.84 3.60 2.44 36.11 4.84 10.50 | |
DH-899* | 59444N/14490E | 115/-82 | 114-120 Incl.118-119 185-201 Incl.185-189 216-242 Incl.222-231 Incl.223-224 | 6 1 16 4 26 9 1 | 1.76 6.05 2.41 4.61 2.04 3.64 16.87 | |
*Previously reported. Mineralized intervals are based on 1-metre samples utilizing 0.5 and 1.0 g/t gold cut-off levels with a maximum internal dilution of 4 metres. The attitude of mineralized intervals varies and reported mineralized intersections may not represent true widths. | ||||||