Oromin Explorations Ltd.
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TSX : OLE

Oromin Explorations Ltd.

December 23, 2009 09:30 ET

Oromin Explorations Ltd.: Sabodala Property Results Continue to Expand New Discoveries and Extend Limits of Mineralization at OJVG’S Combined Open Pit and Underground Deposits

 VANCOUVER, BRITISH COLUMBIA--(Marketwire - Dec. 23, 2009) - Oromin Explorations Ltd. (TSX:OLE)(OTCBB:OLEPF) -  

HIGHLIGHTS

  • Drilling at the higher grade Epsilon (Kourouloulou) and Kerekounda Deposits continues to intersect mineralization with grades favourable for underground mining including:
  Kourouloulou   Kerekounda
- 16.83 g/t gold over 3 metres in DH-560 - 51.71 g/t gold over 1 metre in DH-582
- 29.64 g/t gold over 2 metres in DH-568 - 15.44 g/t gold over 3 metres in DH-591
- 14.50 g/t gold over 5 metres in DH-597 - 4.87 g/t gold over 10 metres in DH-596
  • Drill results from the Cloverleaf (Koulouquinde) Prospect suggest that it may become another higher grade gold deposit with considerable underground mining potential, with recent results including:
  - 13.13 g/t gold over 3 metres in RC-649
  - 96.45 g/t gold over 1 metre in RC-653
  - 14.24 g/t gold over 7 metres in RC-655
  • Successful trenching at a New Discovery of near surface oxide mineralization at Kobokoto South includes intervals of 1.25 g/t gold over 35 metres, 1.91 g/t gold over 9 metres and 3.42 g/t gold over 5 metres.

Oromin Explorations Ltd. ("Oromin") on behalf of the Oromin Joint Venture Group Limited ("OJVG"), is pleased to provide a drilling update and summary for the ongoing exploration program at its Sabodala Gold Project in eastern Senegal, West Africa. As at December 2009, OJVG has outlined 7 gold deposits and 18 gold targets within a 22 km long, 5 to 8 km wide, northeast trending structural corridor.

The 2009 drilling program has concluded and the 2010 drilling campaign will re-start in early January 2010.

Since the most recent OJVG resource update in August, 2009, 182 additional RC and core drill holes have been completed. The focus of the current drilling is the outlining of additional resources at the higher grade Golouma area deposits for their inclusion in a resource update due in Q2, 2010. These deposits include the most recent high grade discoveries at Epsilon ("Kourouloulou") and Cloverleaf ("Koulouquinde") and the high grade, down-dip extensions of the current indicated resources at the Kerekounda, Golouma West and Golouma South deposits.

All of these deposits host combined open pit and underground mining opportunity.

For more complete results and descriptions of these numerous gold deposits, please refer to previous news releases dated May 14, 2009, September 9, 2009 and October 7, 2009.

KOUROULOULOU DEPOSIT
Significant gold mineralization at the Kourouloulou (formerly named Epsilon) open pit and underground deposit was announced in May 2009. Since then 67 additional drill holes have been completed outlining a multiple quartz vein system over a strike length of 220 metres and to depths of 200 to 225 metres. The Kourouloulou mineralized zones remain open to expansion along strike as well as to depth. OJVG is drilling the deposit at closely spaced centres with the focus of outlining Indicated Resources for the planned Q2, 2010 resource update. All of the recent results and pending results for four additional holes, will be included in the Q2, 2010 resource update. Significant results include the following:

Kourouloulou Deposit

Drill Hole
Grid
Co-ordinate
Azimuth/
Dip
From – To
(m)
Interval
(m)
Gold
(g/t)
RC-170* 53568N/5486E 030/-50 76-79 3 50.39
RC-176* 53590N5454E 030/-50 51-56 5 19.97
RC-578* 53553N/5375E 030/-50 56-68 12 10.20
RC-579* 53501N/5345E 030/-50 192-204
209-217
12
8
23.53
16.54
RC-637* 53565N/5383E 030/-50 35-42 7 24.56
DH-456* 53528N/5337E 030/-50 104-106 2 13.09
DH-505* 53559N/5396E 030/-45 40-44 4 81.10
DH-520* 53553N/5410E 030/-45 48-51 3 27.79
DH-522* 53553N/5410E 030/-60 52-56 4 196.27
DH-524* 53553N/5410E 030/-75 161-162 1 58.02
DH-540 53563N/5435E 030/-50 93-95 2 29.26
DH-544 53568N/5417E 030/-45 77-79 2 14.13
DH-557 53777N/5527E 360/-45 41-43 2 7.04
DH-560 53601N/5515E 030/-50 78-81
incl.79-80
3
1
16.83
45.28
DH-568 53818N/5547E 360/-65 47-49
incl.48-49
2
1
29.64
50.91
DH-579 53582N/5408E 030/-70 24-30
incl.27-30
105-107
6
3
2
6.87
11.95
6.61
DH-581 53600N/5419E 030/-70 65-67 2 6.17
DH-588 53512N/5388E 030/-65 83-84
182-183
1
1
35.39
15.50
DH-592 53545N/5406E 030/-65 147-148 1 6.17
DH-594 53545N/5406E 030/-80 203-204 1 6.53
DH-597 53574N/5422E 030/-68 38-43
incl.42-43
103-108
incl.103-105
5
1
5
2
5.35
17.70
14.50
33.66

* Previously Released

KEREKOUNDA DEPOSIT
To the end of the OJVG's 2009 drill program, a total of 28 additional holes have been completed at the Kerekounda open pit and underground deposit beyond those included in the August 2009 resource update. The majority of these holes were deep step-outs targeting higher grade mineralization both down-dip and laterally from previously defined Indicated Resources. Successful drilling results from these holes, including the most recent, will expand the mineralization beyond previous resource outlines which should further enhance the underground mining opportunity at Kerekounda.

Furthermore, these successful drill holes confirm that the higher grade zones comprising the Kerekounda deposit remain open to expansion both laterally and to depth, providing a future resource expansion opportunity. All of the recent results and pending results for two additional holes will be included in the Q2, 2010 resource update. Significant results include the following:

Kerekounda Deposit

Drill Hole
Grid
Co-ordinate
Azimuth/
Dip
From – To
(m)
Interval
(m)
Gold
(g/t)
RC-458* 54677N/5409E 060/-60 112-122 10 7.15
RC-463* 54701N/5457E 060/-70 66-73 7 25.34
RC-535* 54627N/5458E 060/-60 86-98 12 15.33
DH-415* 54616N/5441E 060/-60 116-121 5 12.22
DH-424* 54665N/5415E 060/-60 112-116 4 14.89
DH-426* 54588N/5255E 060/-60 287-300 13 10.12
DH-468* 54584N/5209E 060/-50 311-318 7 12.45
DH-488* 54541N/5204E 060/-54 360-369 9 7.17
DH-578 54552N/5242E 060/-60 322-324 2 12.59
DH-582 54461N/5396E 060/-68 274-275 1 51.71
DH-589 54513N/5288E 060/-59 308-311
335-336
3
1
8.35
9.00
DH-591 54484N/5298E 060/-60 312-315
incl.314-315
340-344
incl.342-343
3
1
4
1
15.44
43.09
7.89
23.89
DH-596 54584N/5191E 056/-53 325-335
incl.328-331
10
3
4.87
7.89
DH-605 54577N/5232E 059/-62 319-321
incl.320-321
2
1
28.05
53.10

* Previously released

GOLOUMA WEST AND GOLOUMA SOUTH DEPOSITS
At the conclusion of OJVG's 2009 drill program, a total of 33 additional holes had been completed at the Golouma West and Golouma South open pit and underground deposits, beyond those holes included in the August 2009 resource update. The majority of these holes targeted higher grade mineralization as deep step-out holes both down-dip and laterally from previously defined Indicated Resources. Successful drilling results from these holes, including the most recent sequence of holes, will expand mineralization beyond previous resource outlines, enhancing underground mining opportunities at both deposits.

Based on the favourable results from recent drilling at Golouma West and Golouma South, expansion opportunities both laterally and to depth have been confirmed. All of the recent drilling results, plus additional pending results for four additional holes, will be included in the Q2, 2010 resource update. Significant results include the following:

Golouma West Deposit

Drill Hole
Grid
Co-ordinate
Azimuth/
Dip
From – To
(m)
Interval
(m)
Gold
(g/t)
DH-434* 53265N/4706E 015/-60 304-313 9 13.39
DH-517* 53355N/4658E 015/-70 275-279 4 6.27
DH-526* 53355N/4634E 015/-70 302-305 3 9.94
DH-539* 53299N/4673E 015/-67 311-321 10 17.54
DH-587 53574N/4408E 016/-60 120-137
Incl.128-132
146-149
17
4
3
2.84
5.41
3.10
DH-590 53510N/4370E 016/-62 237-242 5 4.07

* Previously released

Golouma South Deposit

Drill Hole
Grid
Co-ordinate
Azimuth/
Dip
From – To
(m)
Interval
(m)
Gold
(g/t)
RC-555* 52593N/4999E 110/-64 159-168 9 12.79
RC-557* 53058N/4955E 110/-59 257-263 6 8.01
DH-519* 53163N/4959E 110/-60 262-273 11 8.26
DH-523* 53138N/4959E 110/-67 275-280 5 5.55
DH-528* 53095N/5008E 110/-60 200-204 4 12.52
DH-545 52958N/5135E 110/-60 38-46
incl.38-42
8
4
4.29
6.04
DH- 548 52949N/5108E 110/-60 51-55
incl.54-55
4
1
4.71
13.99

* Previously released

KOULOUQUINDE PROSPECT
Recent drilling at the Koulouquinde Prospect (formerly named Cloverleaf) is indicating that this prospect may become the newest gold deposit offering a higher-grade open pit and underground mining opportunity for OJVG.

The intent of the recent drilling program at this prospect is to have enough drill information to be included in the Q2, 2010 resource update.

Oromin has recently completed 16 reverse circulation holes at the Koulouquinde (Cloverleaf) prospect to follow up previous favourable results of 41.98 g/t gold over 1 metre in RC-642 at the North Koulouquinde zone and 6.78 g/t gold over 5 metres in RC-644 at the Main Koulouquinde vein system. Available results from the recent drilling listed in the accompanying table are all from the Main Koulouquinde vein system, except for RC-653 (96.45 g/t gold over 1 metre) that is from the North Koulouquinde zone. Drilling has now tested the Main Koulouquinde vein system over a strike extent of approximately 200 metres and to depths of approximately 125 to 150 metres below surface. Both the Main Koulouquinde and North Koulouquinde zones remain open to expansion. Results are pending for six of the holes recently completed at the Koulouquinde prospect.

Significant results from the recent drilling at the Koulouquinde prospect are summarized in the following table:

Koulouquinde Prospect

Drill Hole
Grid
Co-ordinate
Azimuth/
Dip
From – To
(m)
Interval
(m)
Gold
(g/t)
RC-648 52365N/4485E 340/-68 16-19
125-126
3
1
5.18
7.00
RC-649 52380N/4525E 340/-50 74-77
incl.74-75
3
1
13.13
29.46
RC-653 52705N/4418E 220/-50 156-157 1 96.45
RC-655 52382N/4480E 015/-50 48-55
incl.48-51
incl.49-50
71-72
143-144
7
3
1
1
1
14.24
30.92
66.53
9.19
30.86

NEW DISCOVERY

KOBOKOTO SOUTH PROSPECT
Kobokoto South (formerly named Gamma) is an open-ended NE-SW trending, > 50 ppb gold-in-soil Geochem anomaly measuring a minimum of 1,300 metres in strike extent containing a high value of 1,990 ppb gold. Rock sampling results include values of up to 6.33 g/t gold and 7.48 g/t gold within the soil anomaly.

Oromin recently completed a series of twelve excavator trenches covering a 1,000 metre strike extent of this Prospect. Field observations indicate that hosting geology, alteration, structure and mineralization are very similar to the near-surface oxide mineralization previously observed in trenches and drilling at the Masato, Niakafiri and Maki Medina deposits. Favourable trench results from this phase of exploration include:

  • 1.85 g/t gold over 4 metres in TRX-329
  • 1.21 g/t gold over 11 metres, including 2.39 g/t gold over 3 metres in TRX-330
  • 1.91 g/t gold over 9 metres, including 3.59 g/t gold over 2 metres in TRX-332
  • 1.85 g/t gold over 5 metres in TRX-334
  • 2.03 g/t gold over 5 metres in TRX-335
  • 1.25 g/t gold over 35 metres, including 23.53 g/t gold over 1 metre, 3.64 g/t gold over 1 metre and 2.58 g/t over 3 metres in TRX-336
  • 3.42 g/t gold over 5 metres in TRX-337

Additional trenching and drilling evaluation is planned for Kobokoto South in next year's exploration program.

Technical supervision
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. 

Mineralized intervals for reported drill hole intersections are based on 1-metre samples utilizing a 1.0 g/t gold cut-off level. No cutting of gold assays has been employed for reported intervals. The attitude of mineralized intervals varies and reported mineralized intersections may not represent true widths. 

TSL Laboratories in Saskatoon carried out all assaying under industry-standard QA/QC procedures.

To find out more about Oromin Explorations Ltd., visit www.oromin.com. Please refer to the Corporate Presentation in the "Investors/Presentations" section of the website and our previous news releases, for additional project information.

On behalf of the Board of Directors of
OROMIN EXPLORATIONS LTD.

"Chet Idziszek"_________
Chet Idziszek, President

Cautionary Statement
This document contains "forward-looking statements" within the meaning of applicable Canadian securities regulations. All statements other than statements of historical fact herein, including, without limitation, statements regarding exploration plans and our other future plans and objectives, are forward-looking statements that involve various risks and uncertainties. Such forward-looking statements include, without limitation, estimates of exploration investment and the scope of exploration programs. There can be no assurance that such statements will prove to be accurate, and future events and actual results could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from our expectations are disclosed in the Company's documents filed from time to time via SEDAR with the Canadian regulatory agencies to whose policies we are bound. Forward-looking statements are based on the estimates and opinions of management on the date the statements are made, and we do not undertake any obligation to update forward-looking statements should conditions or our estimates or opinions change. Forward-looking statements are subject to risks, uncertainties and other factors, including risks associated with public markets, mineral exploration, price volatility in the mineral commodities we seek, and operational and political risks. Readers are advised not to place undue reliance on forward-looking statements.

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