How To
The Basics of Geophysical Exploration
February 2012 by Chris Ralph
In developing a mineral property or mining claims, one of the first goals is to identify and quantify valuable deposits. The classic method of doing this is by drilling holes into the ground to sample what is below the surface. The problem is that one or two holes usually are not going to tell you a whole lot...Placer Channel Sampling

Care and Lubrication of a Model 13 Laboratory Wilfley Table

Operation And Application Of Magnetometers

How to Interpret Assay Values
This assay system of ounces per ton sounds simple enough, but the use of the metric system and the additional measuring terms of “grams per ton” and “parts per million” (ppm) has created some misunderstanding of ore value.
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Which comes first, claim filing or staking?
Enrichment of Mineral Deposits by Weathering—Part I

The ABCs of XRF
Fast forward to present day and the XRF has come of age. Pull the trigger on the hand-held device and you get a nearly instant assay of the surface of a rock.
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