Technical Report for the Maricunga Gold Mine - Kinross Gold

Kinross Gold CorporationMaricunga Mine Technical Report13.0 SAMPLE PREPARATION, ANALYSES AND SECURITY13.1 Sample PreparationIn 2002-2003, all sample preparation, including core splitting (sawing) was performed andsupervised by ALS Chemex personnel. ALS Chemex established, equipped and staffed aportable sample preparation facility at the Maricunga mine for the duration of the program.The sample preparation facility included two rock saws, three drying ovens, two Rhino jawcrushers and a Jones riffle splitter.After logging and sample mark up, the core boxes were sent to the sample preparationfacility. ALS Chemex personnel physically sawed the core. The core splitter randomlyselected the split line. Core splitters were trained to maintain the same cut line on contiguouspieces of core wherever possible. After splitting, one half of the core was placed in sampletrays along with the sample tag. These were placed in the drying ovens for drying. The otherhalf of the core was fitted back into the core box and returned to CMM for placement inpermanent storage.All samples were dried for 4 – 6 hours at 70° Celsius. For wet reverse circulation samples,the dry time was increased to 24 hours. After drying, sample weight was recorded and thesample was single pass crushed to 90% passing 2 mm using the Rhino Jaw crushers. Thecrushers were cleaned with air after each sample and cleaned with barren quartz after everyfive (5) samples. Crush size was monitored after every 20 samples to ensure that the finalproduct met the crush size specification.After crushing, the entire sample was passed through a Jones riffle splitter, reducing thesample size down to a nominal 1.0 kg size. A preparation duplicate was collected every forty(40) samples. The duplicate was distinguished by an “A and B” designation and treated asper the standard sample procedure. The coarse rejects were returned to the original samplebag, labelled and returned to CMM for storage.The 1.0 kg samples were sealed in plastic bags, labelled, packed in crates and transportedto the primary analytical facility (ALS Chemex – La Serena) for analysis. The laboratory hasISO 9001-2000 accreditation.48