California's Mother Lode Quartz Veins

May 2015 by Chris Ralph

Heavy Sands Mining

February 2013
Lately my mind has been involved with group 4 of the transition elements, namely titanium, zirconium, and hafnium. They all have similar chemical properties. Of greatest interest to economic geologists and miners is that these valuable elements often occur together in sands.

Yesterday's Gold—Today's Mine

December 2011
It would seem that we are often indeed destined to repeat history. In terms of gold discovery, even with all the advancements that have been made over the years, it seems we are once again on the cusp of returning to the 1800s world of gold mining. Even as you read this, a new gold rush is taking place in a sleepy little town in South Carolina.

Gold Rush Continues in Africa

March 2015
…some miners are doing exceptionally well… with a few obtaining amounts estimated in the millions of dollars.

Epithermal Gold and Silver Deposits

April 2017
Epithermal deposits form in the ground at shallow depths. They are popular with prospectors because can yield very rich deposits and they are widespread in the Western US.

Gold Depositiion and Gradients of Placer Streams—Part II

July 2012
The steeper the gradient is, the more potential erosive power to move gold and other bedload sediments, and the more power to remove obstacles to flow.

Ancient River Channels of Trinity County

June 2013
Trinity County is located in the far northwest corner of California and stirs up many different memories for those who have been there.

Exploring and Mining for Uranium

August 2011
For a time uranium was more popular with prospectors than gold, but this is no longer true, and it has been decades since it was common to see individuals armed with Geiger counters out in the field.

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