Malawi NI 43-101 - December 2011 - Gold Canyon Resources Inc.

42procedure PUL-21 (pulverized to 85% -75 microns). Samples were analyzed fortotal REE and other trace elements by procedure ME-MS81 and for majorelements by method MS-IP06. Samples of 0.2 g sample were fused with 0.9 glithium metaborate at 1,000˚ C, the glass was dissolved in 100 ml 4% HNO 3 /2%HCl and analyzed by ICP-MS for method ME-MS81 and by ICP-AES for methodME-ICP06. The REE results are reported in Table 10.Soil samples were analyzed for leachable REE by ALS-Chemex as follows.Soils were first air dried using procedure DRY-23 and leached by procedure ME-MS23 (a selective leach of weakly bound ions by sodium cyanide with chelatingagents ammonium chloride, citric acid and EDTA, with the leachant buffered atpH 8.5, analysis by ICP-MS) and by procedure ME-MS04 ( a weak leach with 1.0g sample mixed with 25 ml of ammonium acetate solution in acetic acid, shakenfor 2 hours, the leachant separated by centrifuge and decantation, analysis byICP-MS and by ICP-AES). The leached residues from ME-MS04 were alsopulverized (PUL-21) and analyzed for REE by method ME-MS81 and ME-ICP06..Results by method ME-MS04 for the samples listed in Table 8 are shownin Table 10 (total REE) and in Table 11, (leachable REE).1 Resampling and analysis of samples taken by J. Ishikawa On 21 Augustof 2011 the author visited J. Ishikawa in his office at the Geological Survey ofMalawi in Zomba and was given sub-samples of 3 of his original samples forcheck analyses both of total REE and leachable REE. These results are reportedin Table 9 along with the original analyses of these samples and analyses byMINDECO of the same samples.Samples CHA-4, CHA-6 and CHA-8 have now been analyzed for leachableREE by 3 laboratories and these results are compared in Table 9 and Figure 12.The result of re-analysis of the 3 original Ishikawa samples generally confirmstheir high percentage of leachable REE, from 31 to 74% for all REE or 41 to 86%for all REE except Ce. As previously noted, ionic REE deposits generally show alower percentage of leachable Ce than other REE.It appears that method ME-MS04 gives results similar to the ammoniumsulphate leach used by Nittetsu and University of Tokyo. However, the ME-MS23