20 articles
Software doesn't make a good resource estimate — the geologist does. But the right tool for your project size, budget, and team matters. Here's how to choose without the marketing noise.
Choosing a cut-off grade isn't a spreadsheet exercise. It's a decision that depends on mining method, metal price, recovery, and how honest your geological model is. Here's how to think about it for Indonesian deposits.
A grade-tonnage curve looks simple — grade on one axis, tonnage on the other. But reading it correctly requires understanding what the curve assumes and what it hides.
Kurva grade-tonnage terlihat sederhana — grade di satu sumbu, tonase di sumbu lain. Tapi membacanya dengan benar butuh pemahaman apa yang diasumsikan dan apa yang disembunyikan kurva.
Software tidak membuat estimasi resource yang bagus — geologist yang membuat. Tapi tool yang tepat untuk ukuran proyek, budget, dan tim Anda penting. Begini cara memilih tanpa noise marketing.
Memilih cut-off grade bukan latihan spreadsheet. Ini keputusan yang tergantung pada metode penambangan, harga logam, recovery, dan seberapa jujur model geologi Anda. Begini cara berpikirnya untuk deposit Indonesia.
Swath plots, NN comparison, grade-tonnage reconciliation — the 7-step block model validation checklist every resource geologist should run before CP sign-off.
Kapan membagi domain, bagaimana memvalidasinya, dan jebakan over-domaining. Studi kasus epitermal Indonesia yang menunjukkan kenapa urat dan halo harus diestimasi secara terpisah.
How to draw Measured, Indicated, and Inferred boundaries on Indonesian projects. Not just drill spacing — geological continuity, data quality, and kriging variance.
How to set drill spacing for epithermal gold, porphyry Cu, laterite Ni, and sedimentary deposits in Indonesia. When infill drilling earns its cost — and when it's waste.
From Orebit — practical geology tools for working geologists
