Tuesday, 26 July 2016

mineral resources



CHINA;
US Geogical survey estimated that china is the worls largest gold producers in 2010 and onwards producing 354t, an increase on its 2009 production of 320.In china gold resources are distributed randomly.Many types of gold ore have been found mainly in northern and eastern china.Primary gold ore occurs mainly in shandong, henan,hebei,shaanxi,jilin and hubei while gold placers are found mainly in marginal areas of north eastern china,where stream, system are well developed and In areas in south western china, such as heilongjiang shaanxi, gansu, sichuan, and inner mongolia.
MINES;
The famous is the world's second largest gold producer after south africa.The country produced 285t in 2003 representing a dramatic drop from 2000's total of 355 t. Gold was produced at about 53 major lode mines a dozen or more large placer mines nearly all in alaska,and numerous smaller placer mines mostly in alaska and in the western states.In additions a small amount of domestic gold was recoverd as a by product of processing base metals chiefly copper. Thirty mines yielded more than 99% of the gold produced in the United States.Gold output in the country has been set to increase in 2005.
Fmous gold mines of USA are bald mountain and betze. Poste in nevada and briggs mine in california...

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