Rare study will help rid America of its imports of rare earth predicament

U.S. Geological Survey and other agencies to a new study, Bokan Mountain, Alaska, a unique heavy rare earth minerals help scientists understand the formation of rare earth minerals. Rare is often used in many sophisticated electronic devices and defense technology, rare earth is very important, but relatively scarce. Currently, on the rare earth ore formation geological environment has been little understanding of these geological environment, and to understand the formation process is to determine the concentration of rare earth minerals can be mined level key step.

By the 17 kinds of rare earth elements, including scandium, yttrium and lanthanide rare earths is a member of 15, according to its atomic size, they are divided into light rare earths and heavy rare earths. Light rare earth ore usually dominate, so Bokan Mountain heavy rare earth minerals found worthy of attention. HREE in smart phones and tablet computers for use in the production of small advanced magnets, as well as continuing to improve the performance of the engine and transmission run at higher temperatures are of great value. Bokan Mountain heavy rare earth rare earth ore is concentrated and less efficiently produced one of mine.

In order to determine these mines at Bokan Mountain is how it formed, the researchers used geochemical and isotopic analysis carried out on the granite analysis, after which the results were compared with other granite. Study found that, Bokan Mountain granite and in the "rift" granite formed under similar circumstances in the Rift Valley crust split, overflow from the underground magma, then cooled magma, forming a unique type of granite.

Geologists charted at Bokan Mountain granite and granite intrusive rock structure that accompanied the crack granite magma and active structure to be placed. The researchers said the study helps to more efficiently develop rare earth mine, through a greater understanding of how the formation of rare earth minerals, scientists and mining companies can more accurately determine the concentration of minerals containing up mineable rock.


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