Exploring Iron Oxide Copper Gold Deposits

November 2017 by Chris Ralph

The excitement over IOCG deposits began with the discovery of a monster deposit at Olympic Dam in Australia in 1976. The discovery was accidental as the operator was searching for strata-bound copper deposits.

Placer Mining At Chititu Creek, Alaska

March 2015
There is reason to believe these stream valleys are still rich with gold, silver and copper.

Mineralized Faults and Contacts in the Search for Gold

January 2016

Fault zones and rock contacts are important because the vast majority of gold and silver deposits, as well as those of many other metals, are formed by hot, mineralized water solutions.

Why Did This Silver Mine Close? - Pt III

December 2014
Narrowing down a closure date will allow you to check the commodity price during that time and possibly confirm that a low price, rather than a lack of ore, was the driving force that closed the operation.

Benches and Fossil Placers

March 2013
Unfortunately for us mortal humans, we have a poor perspective on geologic time. When we look at a landscape such as a stream valley, we see it only in two, or at the most, three dimensions. We have poor comprehension of the valley’s fourth and most important dimension—time.

Critical Minerals: Titanium—Part II

August 2018

There are both hard rock and beach sand types of titanium deposits, but the hard rock deposits need to be at least 10 percent titanium while the beach sands often are economic with only two or three percent titanium.

One of the Richest Beaches Ever Mined

April 2015
Everyone has heard of the golden beach at Nome, but Nome did not have the richest beach.

Perception of Mining vs. Reality

May 2015

Many modern mining companies have taken to making a special effort to ensure the goods and services they need are supplied as much as possible out of the local economy.

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