Petaquilla Minerals Ltd.
TSX : PTQ
OTC Bulletin Board : PTQMF

Petaquilla Minerals Ltd.

October 19, 2005 15:43 ET

Petaquilla Minerals Ltd.: Additional Trenching Confirms the Geological Model Developed for the Northwest Zone

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - Oct. 19, 2005) - Petaquilla Minerals Ltd. ("PTQ" or the "Company") (TSX:PTQ)(OTCBB:PTQMF) reports on the on-going trenching program at the epithermal Molejon gold deposit in north-central Panama.

The trenching program was initiated to generate a geological model for the high grade gold intersections encountered in the 1994-95 drill program. The Company has now completed in excess of 5,000 meters of trenching, with over 3,000 samples collected and assayed in preparing the new geological model.

In order to confirm the geological model developed for the Molejon Project's Northwest Zone, 13 trenches were dug at the models projected eastern limits. Assay results indicate that the trenching intersected the zone where the model projected it should occur. With these results, the trenching program has exposed the Northwest Zone for a surface grid length of 425 meters.

The Northwest Zone is located in a high relief area, and trenching is exposing the zone along, hillsides and creek beds. Because the zone is a hard, silicified band, hand trenching is exposing the erosion surface of the zone. In most cases, the channel - chip samples follow the zone obliquely along strike or down dip. Trench sample length intersection are an indicator of gold mineralization continuity, and do not represent true widths of mineralization.



Trench Summary

------------------------------------------------
Line Trench Composite Length Assay (gr/t)
------------------------------------------------
10025N TR-003 27.0 meters 0.42 gr/t
------------------------------------------------
9975N TR-004 8.0 meters 2.37 gr/t
------------------------------------------------
9900N TR-007 9.0 meters 4.71 gr/t
------------------------------------------------
9750N TR-010 8.0 meters 3.60 gr/t
------------------------------------------------
9725N TR-011 10.0 meters 2.05 gr/t
------------------------------------------------
9700N TR-012 12.0 meters 6.01 gr/t
------------------------------------------------


Currently the northern limit for the Northwest zone is Grid Line 10125N. Auger samples containing high gold values have been obtained north of the line, but the first 2 trenches to test these anomalies (TR-001 and TR-002) did not expose mineralization. Exploration will continue in this area, to determine if the surface expression of the Northwest Zone extends north of the current limit.



Complete trench results - Northwest Zone

---------------------------------------------------------------------
Composite
Intersection Length and
Line Trench Length Interval Assay (Gold) Notes
---------------------------------------------------------------------
TR-001 32.0 No Intersection
10150N ------------------------------------------------------------
TR-002 38.5 No Intersection
---------------------------------------------------------------------
0.00 to 27.0 27.0 meters
@ 0.42 gr/t Trench started
10025N TR-003 37.7 -------------------------- in gold
including 13.5 meters mineralization
@ 0.51 gr/t
---------------------------------------------------------------------
9975N TR-004 46.0 38.0 to 46.0 8.0 meters Trench ended
@ 2.37 gr/t in gold
mineralization
---------------------------------------------------------------------
TR-005 50.5 Trench contains
anomulus gold
assays, with a
high of
0.391 gr/t Au
9925N ------------------------------------------------------------
TR-006 36.8 10.8 to 32.0 21.2 meters
@ 1.39 gr/t
---------------------------------------------------------------------
6.0 to 15.0 9.0 meters
@ 4.71 gr/t
9900N TR-007 25.1 ------------------------------------------
including 2.3 meters
@ 16.12gr/t
---------------------------------------------------------------------
9875N TR-008 21.0 0.0 to 16.5 16.5 meters Trench started
@ 0.46 gr/t in gold
mineralization
---------------------------------------------------------------------
9850N TR-009 48.3 0.0 to 1.3 1.3 meters
@ 0.866 gr/t
---------------------------------------------------------------------
0.0 to 31.0 31.0 meters
@ 1.86 gr/t
9825N TR-010 31.0 ------------------------------------------
including 8.0 meters
@ 3.60 gr/t
---------------------------------------------------------------------
2.0 to 24.0 22.0 meters
@ 1.24 gr/t
9750N TR-011 44.0 ------------------------------------------
including 10.0 meters
@ 2.05 gr/t
---------------------------------------------------------------------
21.0 to 33.5 12.0 meters
@ 6.01 gr/t
L9725 TR-012 53.5 ------------------------------------------
including 4.0 meters
@ 11.87 gr/t
---------------------------------------------------------------------
L9700 TR-013 45.7 4.9 to 7.9 3.0 meters
@ 0.52 gr/t
---------------------------------------------------------------------


David Nowak, (P.Geo.), has reviewed the technical data, and is the Qualified Person under the definition of Canadian National Instrument 43-101.

All samples were collected in accordance with industry standards, with a sample length of 1.5 meters or geological break, (excluding a few samples in overburden).

Preliminary sample preparation crushing is done on site, where a 500-gram sample is split, and shipped to Global Discovery Lab (GDL) in Vancouver. GDL completes final sample preparation and performs a 1-ton Fire Assay. Samples submitted included duplicates, blanks and standards, following industry established quality control practices.

On behalf of the Board of Directors of

PETAQUILLA MINERALS LTD.

Kenneth W. Morgan, CFO and Director


No stock exchange has approved or disapproved the information contained herein.

Contact Information

  • Petaquilla Minerals Ltd.
    Kenneth W. Morgan
    CFO and Director
    (604) 694-0021
    (604) 694-0063 (FAX)
    www.petaquilla.com