News from pgdSep 24, 2007 09:01 ET
Peregrine Discovers New Diamondiferous Kimberlite Lithologies at DO-27
VANCOUVER, BRITISH COLUMBIA--(Marketwire - Sept. 24, 2007) - Peregrine Diamonds Ltd. (TSX:PGD) ("Peregrine") today announced that caustic fusion results of drill core from two, newly discovered kimberlite lithologies at the nine hectare DO-27 kimberlite pipe, WO Diamond Project, NT, Canada, are diamondiferous.
The new lithologies were intersected in two horizons in a vertical, NQ (47 mm diameter), core hole (DO-27-06-32) drilled into the Northeast Lobe of DO-27 to test the extent of various kimberlite lithologies below the main diamond bearing pyroclastic kimberlite (PK) unit of the Northeast Lobe, which grades over 0.78 carat per tonne. Underlying the PK in the Northeast Lobe is a complex volcaniclastic kimberlite unit and what was interpreted as hypabyssal kimberlite, which was considered to be the base of the Northeast Lobe stratigraphy (see press release dated March 16, 2006). Core hole DO-27-06-32 has encountered these new additional kimberlite lithologies beneath the previously interpreted hypabyssal unit.
The first new lithology, described as a resedimented volcaniclastic kimberlite and designated RFW (A), was intersected from 204.7 meters to 256.4 meters of depth. The second new lithology, described as a possible magmatic kimberlite breccia and designated RFW (B), was intersected from 302.1 meters to the bottom of the hole at 343.6 meters of depth. This discovery could have positive implications to the overall size of the kimberlite at DO-27 as the area below 204 meters of depth in this location was previously expected to be principally granitic host rock.
Caustic fusion results of these new kimberlite lithologies, shown below, prove that they are diamond bearing: