A total of 18 gold mineralization domains were defined, where two sub-zones were named as NE zone and SW zone, covering NE open pit and SW open pit, respectively. NE zone accounts for 78% of the total mineral resources of the CSH gold deposit, where SW zone occupies 22%only.
Gold mineralization domain N1: The largest size of gold domain at the cross section of explorationline8,800 to 11,100 was defined in the CSH deposit area, with an irregular tabular shape, and controlled by bedding-like shear structures. The mineralised domain is totally hosted in the second Member of Bilute Formation, Mesoproterozoic Bayan Obo Group, with most parts outcropped on the surface. It strikes NE55°to 65° overall, plunging NW at a dip of 70 – 85°. As shown in Figure 7-5, a total of 645 diamond drill holes on a grid of 50–100 m (strike) by 50–100 m (plunge) have delineated the domain for a length of 2,346malong the strike and a plunge extension of 1,100 – 1,540 m, with a horizontal thickness of 70 – 400m. The elevation of the domain ranges from 1,677 m to 230 m ASL. The domain N1, accounting for about 76.5%ofthe total mineral resources of the CSH Gold Deposit, is dominated by gold mineralization grading0.57g/t Au.
Gold mineralization domain W1: The second largest size of gold domain at the cross section of exploration line 6,700 to 9,100 was defined in the CSH gold deposit area, with a strata-bound shape, and controlled by bedding shear structures. The mineralised domain is ........