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2. Exploration diamond drilling - Wikipedia

   en.wikipedia.org/wiki/Exploration_diamond_drilling

   Drilling rig capable of both diamond and reverse circulation drilling. Exploration diamond drilling is used in the mining industry to probe the contents of known ore deposits and potential sites. By withdrawing a small diameter core of rock from the orebody, geologists can analyze the core by chemical assay and conduct petrologic, structural ...

3. Boart Longyear - Wikipedia

   en.wikipedia.org/wiki/Boart_Longyear

   In 1888, Edmund J. Longyear, a mining engineer from the first graduating class at the Michigan Mining School, drilled the first diamond core hole in the Mesabi Iron Range in northern Minnesota. [1] In 1890, he formed a contract diamond drilling company to serve the rapidly growing U.S. iron ore mining and steel industry.

4. Core sample - Wikipedia

   en.wikipedia.org/wiki/Core_sample

   Rock core samples, the product of a diamond rig. A pied butcherbird perches nearby. A core sample is a cylindrical section of (usually) a naturally-occurring substance. Most core samples are obtained by drilling with special drills into the substance, such as sediment or rock, with a hollow steel tube, called a core drill. The hole made for the ...

5. Baker Hughes - Wikipedia

   en.wikipedia.org/wiki/Baker_Hughes

   Baker Hughes Company is an American global energy technology company co-headquartered in Houston, Texas and London, UK.As one of the world's largest oil field services, industrial and energy technology companies, it provides products and services to the oil and gas industry for exploration and production, as well as other energy and industrial applications.

6. Longyear Drill Site - Wikipedia

   en.wikipedia.org/wiki/Longyear_Drill_Site

   The exploration diamond drilling process was led by Edmund J. Longyear, who went on to drill 7,100 test pits all across the Mesabi Range. In 1976 the Iron Range Historical Society developed the site as a historic attraction with period drilling equipment. It is now managed by the city of Hoyt Lakes in partnership with the Hoyt Lakes Garden Club.

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