Kokkus- The next World Class Au deposit from Central Asia
1.Geological Model-Kokkus is a TAG (Thermal Auroral Gold) Style deposit, siting above a massive granodiorite intrusion, which has followed the Yantyle fault upward. The Yantyle fault is over 900km long and also controls the massive Bozshakol Cu-Au deposit 420 km further to the north east. The massive granodiorite intrusion outcrops 3km SE of Kokkus and is 40 km long and 8 km wide on the surface and it also extends as a smaller intrusion between the Au zones , 6km long and 500m wide, separating the main Au ore controlling structures of Zones A & B (K1-9), from Zone C (K10-11), following the same structural controls which the Au rich fluids have followed.
2. The Ore Zones at Kokkus: The ore body is divided into three structurally separate Zones, but same alteration is extensive through out. Zone A:- The extensive silica-illite alteration of the fine sediments is massive and widespread over 6 separate Au zones spaced over 700m wide and 2000m long, these are interpreted to be close listric faulting which are sub parallel to each other and sometimes merging with each other. This was followed by a quartz-pyrite stockwork carrying the Au either free or in pyrite with some Ag and increasing Cu with depth. The true width from drilling to date varies from 10-50m wide on each of the 6 separate faults, named K1-K6. the combined strike length of Zone A could potentially be over 11km.
While in Zone B there is another 3 alteration zones of silica –illite containing Au , same as in Zone A, which have undergone large scale late folding. The three identified sub parallel folded structures in Zone B have a strike of over 3.3km, named K7-K9
Zone C, contains K10 & K11, which is on the northern side of the massive granodiorite intrusive body with a strike length of 2.7 km
3. Metallurgical test work to date show in the oxide zone the Au has a recovery of 74% using a gravity circuit only, with a fine grind, -75 microns, while in the sulphide zone the recovery of free gold drops to 40%. AISC is estimated to be around $US700- in the oxide zone and $US840 in the sulphide zone. These figures to be confirmed later in 2022, after further FS.
4. Chalcopyrite appears to be increasing with depth in the current drilling, which may indicate that there is a large Cu-Au porphyry below Kokkus. An IP survey is planned for next year, to identify a larger sulphide target below Kokkus. Also in 2022 a number of RC holes are planned to intersect the GDR intrusion between Zones A +B and Zone C to test if it also is Au rich like the GDR dykes intersected in the previous drilling.
Kokkus Au Deposit- SSRUC 13 sq klm, A folded structure in very intense silica/ illite alteration with qtz/ pyrite stockwork in very fine sediments, zones (white) K1 —K11. True widths from 10-50m, potential strike length to date 15 klm
Kokkus-Planned Drilling in 2022
Total Strike length to date 11 kms, potential +13kmAu mineralized true widths10-50m
Mapped Au Zones K1-K11
Interpreted Au Zone
Small Au mineralized GDR dykes
Kokkus Aster -Silica-Illite Signature
Massive GDR Intrussion
JORC resource estimate