Ua holomua hou ʻo Newcrest Mining i ka ʻimi ʻana i ka papahana Red Chris ma British Columbia, Kanada a me ka papahana Havieron ma Western Australia.
Ua hōʻike ka hui i kahi ʻike hou ma kahi ʻimi ʻo East Ridge he 300 mika ma ka hikina o ka East Zone o ka papahana Redcris.
ʻIke ʻia kahi wili daimana i 198 mika ma ka hohonu o 800 mika. ʻO ke ʻano gula he 0.89 g/ton a ʻo ke ʻano keleawe he 0.83%, me 76 mika ka mānoanoa, ke ʻano gula 1.8 g/ton a me ke keleawe 1.5% mineralization. Aia ke kino o ka ore ma nā ʻaoʻao a pau. ʻAʻohe o lākou i komo.
Ua ʻike pū ʻia ka minelala gula kiʻekiʻe ma ka ʻeli ʻana ma ke kāʻei hikina, e hōʻoia ana i ka hoʻonui ʻia ʻana o ka mineralization ma ka hema. Ma ka hohonu o 528 mika, ʻo ka ore he 524 mika, ʻo ke ʻano gula he 0.37 g/ton, ke keleawe 0.39%, me 156 mika ka mānoanoa, ke ʻano gula 0.71 g/ton, ke keleawe 0.59%, a me 10 mika ka mānoanoa, ke ʻano gula 1.5 g/ton a me 0.88% ke keleawe mineralization.
I kēia manawa, aia he 6 mau mīkini ʻeli wili ma ka papahana e kūkulu ʻia nei, a e hoʻonui ʻia a i 8 i ka hapaha e hiki mai ana.
E hoʻopau ʻia ka puke kumuwaiwai mua a RedChris i kēia mahina.
Ma ka Panalāʻau ʻo Patterson, ma ke Komohana o Australia, ua ʻike ʻia ka hoʻonui ʻana i ka ʻeli ʻana o ka Haweilong Gold Mine o Xinfeng Mining Company i ka mineralization kiʻekiʻe. Eia nā kūlana kikoʻī o ka mine:
◎ 97 mika i ka hohonu o 500 mika, ke gula 3.9 g/ton, ke keleawe 0.5%, me 15 mika ka mānoanoa, ke gula 9.7 g/ton a me ke keleawe 1.8% mineralization;
◎ Ua ʻike ʻia he 169.5 mika o ka ʻai hao ma ka hohonu o 711.5 mika, ʻo ke ʻano gula he 3.4 g/ton, ke keleawe 0.33%, me 58.9 mika ka mānoanoa, ke gula 6.2 g/ton a me ke keleawe 0.23% mineralization;
◎Ma ka hohonu o 537 mika, ua ʻike ʻia he 79.3 mika o ka ʻaila, me ke gula he 4.5 g/ton a me ke keleawe he 1.4%; me 41.7 mika ka mānoanoa, ke gula he 8.4 g/ton a me ke keleawe he 2.6% mineralization;
◎ Ua ʻike ʻia he 109.4 mika o ka ʻai hao ma ka hohonu o 622 mika, ʻo ke ʻano gula he 5.9 g/ton, ke keleawe 0.63%, me 24 mika ka mānoanoa, ke gula 17 g/ton a me ke keleawe 1.4% mineralization.
ʻAʻole i komo hohonu ke kino o ka ʻaila. I kēia manawa, ua manaʻo ka papahana he 3.4 miliona auneke ka nui o nā kumuwaiwai gula a he 160,000 tone ke keleawe.