newsCurrie Rose drills 0.5 m of 6.12 g/t Au at Mwamazengo
2009-11-30 16:09 ET - News Release
Mr. Harold Smith reports
DRILLING RESULTS FROM MWAMAZENGO DISCOVERY AND MWAMAZENGO WEST PROSPECT
Currie Rose Resources Inc. has released the results of drilling at the historical Mwamazengo discovery and at the Mwamazengo West prospect, both within the Mabale Hills project in the Lake Victoria goldfields of Tanzania.
The Mabale Hills project is situated within an Archean granite-greenstone belt that forms part of the Tanzanian shield. The Mabale Hills are characterized by a steeply dipping, tightly folded supracrustal stratigraphic package comprising oxide facies banded iron formations (BIF), chert, felsic to intermediate pyroclastic rocks (tuff) and clastic metasedimentary rocks. The supracrustal rocks are intruded by granodiorite plutons and quartz porphyry. Known gold mineralization occurs as disseminations within BIF and within quartz veins that crosscut BIF brecciated chert and sheared quartz porphyry.
The recently completed drilling program was designed to test new targets that were identified by inversion modelling of recently acquired induced polarization (IP) geophysical data (chargeability, apparent resistivity). The IP data which were generated in September, 2009, by Spectral Geophysics identified a number of targets. Two anomalies were selected for drilling. The first targeted anomaly is situated about 800 metres to the west of the previously drilled Mwamazengo discovery (Mwamazengo West) and extends for approximately 500 metres in a north-south direction. It is characterized by high chargeability values and very low apparent resistivity values (conductive anomaly and represents an entirely new area of interest for gold exploration). The second targeted anomaly is interpreted to be the downdip extension of the Mwamazengo discovery and is characterized by high chargeability values and high apparent resistivity values.
The program was initially planned to include 4,500 metres of reverse circulation (RC) drilling. However, excessive water flows prevented the RC holes from reaching target depths defined by the IP models resulting in management's decision to add diamond tails to reach target depths. Ten RC holes were drilled for a total of 971 metres with five of the RC holes extended by diamond tails to the target depths totalling of 586.5 metres of diamond core.
Whilst ore grade intercepts have evaded the company's current program, disseminated sulphide mineralization was identified within sheared and silicified lithologies identical to that of the Mwamazengo discovery. Key assay results are indicated in the table.
Eight RC holes with four diamond tails (MBNR-D060, MBNR-D061, MBNR-D064, MBNR-D066) were drilled at Mwamazengo West. Gold assay results are in the table.
Two RC holes with one diamond tail (MBNR-D063) were completed on the downdip extension of Mwamazengo. Assays returned a grade of 6.12 grams per tonne (g/t) gold for the last half-metre of the diamond drill core (MBNR-D063) indicating that the hole should be deepened by future drilling.
The company considers the results of the drilling campaign to be promising. A probable downdip extension of the known mineralization at the Mwamazengo discovery has been identified and requires follow-up drilling in 2010. The four diamond holes that penetrated the newly identified Mwamazengo West prospect yielded encouraging results and further drilling on that large geophysically defined target will be required in order to evaluate its potential to host economic concentrations of gold.
All on-ground exploration has now ceased for the wet season and the company will be further assessing the results of this work in preparation for the 2010 field season.
DRILL RESULTS 2009 From To Interval Au Hole No. (m) (m) (m) (g/t) LithologyMBNR-D060 81 82 1.0 0.42 Sheared diorite containing pyrite and arsenopyriteMBNR-D060 146 150 4.0 0.12 Sheared microgranodiorite cut by pyritiferous quartz veinsMBNR-D061 69 76 4.0 0.15 Sheared diorite containing pyriteMBNR-D061 133 134 1.0 0.21 Sheared diorite cut by pyritiferous quartz veinsMBNR-062 0 1 1.0 0.19 Heavily weathered BIFMBNR-062 13 20 7.0 0.16 Heavily weathered BIFMBNR-D063 239 239.5 0.5 6.12 Sheared microgranodiorite cut by pyritiferous quartz veinsMBNR-D064 79 80 1.0 0.89 Sheared silicified pyritiferous dioriteMBNR-D064 109 110 1.0 0.55 Sheared silicified pyritiferous quartz porphyryMBNR-D064 167 171 4.0 0.32 Graphitic mudstone cut by quartz veins containing pyrite, chalcopyrite and arsenopyriteMBNR-067 91 92 1.0 0.50 Graphitic mudstone cut by quartz veins containing pyrite, chalcopyrite and arsenopyrite