Tag: orogenic
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Fingerprinting Archean gold deposits using geochemistry, part 1: introduction
Fingerprinting refers to the use of conventionally collected geochemistry data to enhance our ability to explore. We want to know the fingerprint of gold mineralization, so we can use other, better behaved elements as proxies for gold. We also want to understand the genesis of mineralization so we know how to vector in the deposit.…
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The fault valve model part 2: how to use it to find deposits
Last week, I wrote about the fault valve model and how useful it is for thinking about orogenic gold deposits. This time I want to try to put some of what we learned to good use and try to find some gold deposits. Reminder: 1) We are looking for zones of lithological and structural…
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The fault valve model, part 1: how to make a lode gold deposit
Introduction This week I made another video with Unicorn Exploration where we talked about Archean lode gold deposits, and a little bit about how they formed. I wanted to dive in to part of the story in a lot more detail.The idea of faults as valves and its importance to mineralizing systems was first described…
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What kind of mineral deposits produce the most gold?
Recently I started working on a series of videos with Maura Kolb (Unicorn Exploration) about different kinds of gold deposits (check out the video on her channel). Right away we wanted to talk about, OK, what is the breakdown between deposit type and gold production? I thought that would be pretty easy to search for,…