Ụlọ ọrụ Newcrest Mining emeela ọganihu ọhụrụ n'inyocha ọrụ Red Chris na British Columbia, Canada na ọrụ Havieron na Western Australia.
Ụlọ ọrụ ahụ kọrọ ihe ọhụrụ a chọpụtara n'ebe a na-achọ ihe n'East Ridge, mita 300 n'akụkụ ọwụwa anyanwụ nke mpaghara ọwụwa anyanwụ nke ọrụ Redcris.
Ọdụ mmiri daịamọnd na-ahụ mita 198 n'omimi nke mita 800. Ọdụ ọlaedo ahụ bụ 0.89 g/ton, ọla kọpa ahụ bụkwa 0.83%, gụnyere mita 76 n'okpukpu, ọkwa ọlaedo bụ 1.8 g/ton, ọla kọpa bụkwa 1.5% mineralization. Ahụ nke ọla ahụ dị n'akụkụ niile. Ọ dịghị nke ọ bụla n'ime ha batara.
Ngwuputa ihe n'ebe ọwụwa anyanwụ ahụ hụkwara nnukwu mmepụta ọla edo, nke na-akwado mmụba nke ịnweta ọla edo n'ebe ndịda. N'omimi nke mita 528, ọla ahụ dị mita 524, ọkwa ọlaedo bụ 0.37 g/ton, ọla kọpa 0.39%, gụnyere mita 156 n'obosara, ọkwa ọlaedo 0.71 g/ton, ọla kọpa 0.59%, na mita 10 n'obosara, ọkwa ọlaedo 1.5 g/ton na 0.88% ịnweta ọla kọpa.
Ugbua, ọrụ a nwere ebe a na-egwupụta ihe isii, nke ga-amụba ruo asatọ n'ime nkeji iri na ise sochirinụ.
A ga-emecha akwụkwọ akụrụngwa mbụ nke RedChris n'ọnwa a.
Na Patterson Province, Western Australia, ọrụ ịgbasa Haweilong Gold Mine nke Xinfeng Mining Company nwetara nnukwu mmepụta ihe na-eme ka ala dị ọcha. Ọnọdụ kpọmkwem nke ebe a na-egwupụta ihe bụ ndị a:
◎ Mita 97 n'ime omimi nke mita 500, ọkwa ọlaedo 3.9 g/ton, ọla kọpa 0.5%, gụnyere mita 15 n'obosara, ọkwa ọlaedo 9.7 g/ton na ọla kọpa 1.8% mineralization;
◎ A hụrụ mita 169.5 nke ọla n'ime omimi nke mita 711.5, ọkwa ọlaedo bụ 3.4 g/ton, ọla kọpa 0.33%, gụnyere mita 58.9 n'obosara, ọkwa ọlaedo 6.2 g/ton na ọla kọpa 0.23% mineralization;
◎ N'ime omimi nke mita 537, a hụrụ mita 79.3 nke ọla, nke nwere ọkwa ọlaedo nke 4.5 g/ton na ọla kọpa 1.4%; gụnyere mita 41.7 n'obosara, ọkwa ọlaedo nke 8.4 g/ton na ọla kọpa 2.6% nke mineralization;
◎ A hụrụ mita 109.4 nke ọla n'ime omimi nke mita 622, ọkwa ọlaedo bụ 5.9 g/ton, ọla kọpa 0.63%, gụnyere mita 24 n'obosara, ọkwa ọlaedo 17 g/ton na ọla kọpa 1.4% nke mineralization.
Ahụ nke ihe ndị dị n'ime ala ahụ abanyebeghị n'ime miri emi. Ugbu a, ọrụ ahụ na-eme atụmatụ na ihe ndị dị n'ime ọlaedo dị nde ounces 3.4, ebe ọla kọpa dịkwa tọn 160,000.