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Phu Ang Deposit

Steel in your life

Steel plays a major role in our lifestyle for centuries as seen on the architectures and buildings around the world. Steel became the most important material for everyday life, such as cars, homes, or appliances. Steel demand is increasing everyday. Steel and iron industry became the most important heavy industry in the world providing the civilization and convenience in engineering and construction in everyday lives.

From the research data, steel consumption of each individual is approximately 50 tons per person. With the increase in population, the demand of steel also increases accordingly. However, with the limitation of iron ore reserves, the major iron ore resources found are in Russia, Brazil, Australia, Africa and India.

Loei is located in the upper part of northeast of Thailand. The geology of Loei benefits the variety of minerals. Up til now, Phu Ang deposit was explored and proved to be the largest iron ore reserve with mining concessions from Thai government in Thailand. Department of Primary Industries and Mines had granted mining concessions of Phu Ang to P.T.K. Mining Company Limited as an authorized representative of The Siam Iron and Steel.

Phu Ang Deposit
The Phu Ang Iron ore deposit is in a hill 900 m long and 250 m wide having a maximum relief of 50 m. The hill is underlain by anticlinal strata of the Kanchanaburi series. The iron deposit consist of a surface blanket of hematite-magnetite boulders and outcrops averaging 3.3 m thick, underlain by a series of overlapping lenses of iron minerals alternating with layers of sedimentary rocks. The lenses have a thickness of 2-18 m.

Magnetic survey was conducted by Department of Mineral Resources and the U.S. Agency for International Development. Geological and geophysical studies were conducted including topographic mapping, pitting and trenching, surficial, pit and trench geologic mapping by Hunting Surveys, Ltd., on behalf of United Nations Special Fund. Thirty-three pits and three trenches were dug to a maximum depth of 8 m. Twenty-two diamond drill core holes, ranging from 30-206 m in depth, averaging about 81 m, were drilled. The proven and probable reserves in the oxidized zone are 7.6 million metric tons and unoxidized zone are 3.3 million metric tons. The total reserves are 10.9 million metric tons.

Topographic and Fe distribution Maps