Geology

“I am the rich Potosi, the treasure of the world, the king of mountains, and the envy of kings” Charles V Emperor Holy Roman Empire, King of Spain. Despite the richness ...

In this column on great deposits, I have discussed those that were rich, big, changed destinies, broke governments and accumulated a wealth of stories. However, only one has definitively changed ...

One of the first things to recognize in the mining industry, is that all that glitters may not be gold. I’m not talking about the time the CEO of a ...

A company covered by this site in the past has released a new resource. It was: 281,059 AuEq oz in the indicated category (1.21 Million tonnes (“Mt”) grading 7.23g/t AuEq at ...

Aurum. Au. Geld. Gold. The ransom of kings, the symbol of royalty. The economic motor of empires since antiquity and the killer of civilizations.  For 5000 years it has held an ...

Introduction We often find references to veins, dikes (or dykes) and sills in descriptions of mining projects or in news releases. They may host economic minerals, relate to important project ...

Introduction A magmatic arc hydrothermal system is a class of hydrothermal systems that interlink major styles of precious metal and base metal deposits. These deposits include well known types like ...

Introduction Flying over Nevada on a clear day is one of the great joys of being an economic geologist. The Basin and Range country has abundant structural features, intrusions, deformed ...

When we write about great deposits they are most often well known mines with long established pedigrees and histories of daring exploration in isolated locations. But not all great deposits are ...

Located in the Mount Isa inlier of Queensland, Australia, the Mt Isa deposits represent the largest accumulations of lead, zinc and silver in the world. The first deposits were discovered ...