Mining in Bhutan

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Mining of industrial minerals was insignificant to Bhutan’s economy except for the production of ferrosilicon. The country’s rugged terrain provides sites to harvest hydropower, which has driven rapid growth in the transport and construction sectors, including the startup of a number of local cement operations. [1]

Mining The extraction of valuable minerals or other geological materials from the earth

Mining is the extraction of valuable minerals or other geological materials from the earth, usually from an ore body, lode, vein, seam, reef or placer deposit. These deposits form a mineralized package that is of economic interest to the miner.

Bhutan Landlocked kingdom in Eastern Himalayas

Bhutan, officially the Kingdom of Bhutan, is a landlocked country in South Asia. Located in the Eastern Himalayas, it is bordered by Tibet Autonomous Region of China in the north, the Sikkim state of India and the Chumbi Valley of Tibet in the west, the Arunachal Pradesh state of India in the east, and the states of Assam and West Bengal in the south. Bhutan is geopolitically in East Asia and is the region's second least populous nation after the Maldives. Thimphu is its capital and largest city, while Phuntsholing is its financial center.

Ferrosilicon

Ferrosilicon is an alloy of iron and silicon with an average silicon content between 15 and 90 weight percent. It contains a high proportion of iron silicides.

Contents

Production

The country’s mineral industry was small and insignificant to its economy and was dominated by the production of cement, coal, dolomite, gypsum, and limestone. Known resources included deposits of beryl, copper, graphite, lead, mica, pyrite, tin, tungsten, and zinc. A graphite processing plant was established in Paro. [1]

Cement Hydraulic binder used in the composition of mortar and concrete

A cement is a binder, a substance used for construction that sets, hardens, and adheres to other materials to bind them together. Cement is seldom used on its own, but rather to bind sand and gravel (aggregate) together. Cement mixed with fine aggregate produces mortar for masonry, or with sand and gravel, produces concrete. Cement is the most widely used material in existence and is only behind water as the planet's most-consumed resource.

Coal A combustible sedimentary rock composed primarily of carbon

Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed if dead plant matter decays into peat and over millions of years the heat and pressure of deep burial converts the peat into coal. Vast deposits of coal originates in former wetlands—called coal forests—that covered much of the Earth's tropical land areas during the late Carboniferous (Pennsylvanian) and Permian times.

Dolomite may refer to:

Structure of the Mineral Industry

The Government, a private-sector company, and a Japanese company formed a joint venture to produce ferrosilicon and other alloys. Cement production also was under the control of the Government. [1]

The Department of Geology and Mines under the Ministry of Economic Affairs has two divisions: the Geological Survey of Bhutan and the Mining Division. The latter is responsible for the inspection and regulation of various mines. In addition, the Ministry’s Department of Energy is in charge of the hydropower development in the energy sector. [1]

Commodity review

Bhutan Ferro Alloys Ltd. produced mainly ferrosilicon, which was exported to India and Japan. The production capacity of its plant at Phuentsholing was 18,000 metric tons per year (t/yr) of ferrosilicon, 4,200 t/yr of micro silica, and 2,400 t/yr of magnesium ferrosilicon. Indigenous quartzite produced by the company’s own captive mines was supplied to the plant. Bhutan Ferro Alloys ordered an 18-megavoltampere smelting furnace to produce other silicon and manganese alloys. The expansion was completed in 2005. The company was a joint venture of the Government, Marubeni Corp. of Japan, and the local Tashi Commercial Corp. [1]

India Country in South Asia

India, also known as the Republic of India, is a country in South Asia. It is the seventh largest country by area and with more than 1.3 billion people, it is the second most populous country as well as the most populous democracy in the world. Bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west; China, Nepal, and Bhutan to the northeast; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives, while its Andaman and Nicobar Islands share a maritime border with Thailand and Indonesia.

Japan Constitutional monarchy in East Asia

Japan is an island country in East Asia. Located in the Pacific Ocean, it lies off the eastern coast of the Asian continent and stretches from the Sea of Okhotsk in the north to the East China Sea and the Philippine Sea in the south.

Quartzite hard, non-foliated metamorphic rock which was originally pure quartz sandstone

Quartzite is a hard, non-foliated metamorphic rock which was originally pure quartz sandstone. Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts. Pure quartzite is usually white to grey, though quartzites often occur in various shades of pink and red due to varying amounts of iron oxide (Fe2O3). Other colors, such as yellow, green, blue and orange, are due to other minerals.

Dolomite quarrying near the Pugli hills at Gomtu in southwestern Bhutan affected agriculture (tea plantations) and wild animals in neighboring Indian State of West Bengal. Landslides and erosion caused by quarrying left 14 properties prone to flooding. Dolomite sediments turned the tea plantations’ soil alkaline and airborne dust from the quarry choked the plants. Animals were unable to drink river water made red and cloudy by the quarrying. [1]

Gomtu Place in Samtse District, Bhutan

Gomtu is a border town in south-western Bhutan near the border with India. It is located in Samtse District.

Agriculture Cultivation of plants and animals to provide useful products

Agriculture is the science and art of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities. The history of agriculture began thousands of years ago. After gathering wild grains beginning at least 105,000 years ago, nascent farmers began to plant them around 11,500 years ago. Pigs, sheep and cattle were domesticated over 10,000 years ago. Plants were independently cultivated in at least 11 regions of the world. Industrial agriculture based on large-scale monoculture in the twentieth century came to dominate agricultural output, though about 2 billion people still depended on subsistence agriculture into the twenty-first.

Landslide type of natural disaster, geological phenomenon

The term landslide or, less frequently, landslip, refers to several forms of mass wasting that include a wide range of ground movements, such as rockfalls, deep-seated slope failures, mudflows and debris flows. Landslides occur in a variety of environments, characterized by either steep or gentle slope gradients: from mountain ranges to coastal cliffs or even underwater, in which case they are called submarine landslides. Gravity is the primary driving force for a landslide to occur, but there are other factors affecting slope stability which produce specific conditions that make a slope prone to failure. In many cases, the landslide is triggered by a specific event, although this is not always identifiable.

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Steel Authority of India company

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Elkem is a company that produces silicones, silicon, alloys for the foundry industry, carbon and microsilica.

Pidgeon process

The Pidgeon process is one of the methods of magnesium metal production, via a silicothermic reduction. Practical production requires roughly 35–40 MWh/ton of metal produced, which is on par with the molten salt electrolytic methods of production, though above the 7 MWh/ton theoretical minimum.

Mining in Iran

Mining in Iran is underdeveloped, yet the country is one of the most important mineral producers in the world, ranked among 15 major mineral-rich countries, holding some 68 types of minerals, 37 billion tonnes of proven reserves and more than 57 billion tonnes of potential reserves worth $770 billion in 2014. Mineral production contributes only 0.6 per cent to the country's GDP. Add other mining-related industries and this figure increases to just four per cent (2005). Many factors have contributed to this, namely lack of suitable infrastructure, legal barriers, exploration difficulties, and government control over all resources.

Ferro Alloys Corporation

The Ferro Alloys Corporation Limited (FACOR) was floated in 1955 by the house of Sarafs and Mors to become the first major producer of ferromanganese in India.

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Mining industry of Yemen

The mining industry of Yemen is at present dominated by fossil mineral of petroleum and liquefied natural gas (LNG), and to a limited extent by extraction of dimension stone, gypsum, and refined petroleum. Reserves of metals like cobalt, copper, gold, iron ore, nickel, niobium, platinum-group metals, silver, tantalum, and zinc are awaiting exploration. Industrial minerals with identified reserves include black sands with ilmenite, monazite, rutile, and zirconium, celestine, clays, dimension stone, dolomite, feldspar, fluorite, gypsum, limestone, magnesite, perlite, pure limestone, quartz, salt, sandstone, scoria, talc, and zeolites; some of these are under exploitation.

References

  1. 1 2 3 4 5 6 Kuo, Chin S. "The Mineral Industries of Bhutan and Nepal". 2006 Minerals Yearbook. U.S. Geological Survey (October 2007). PD-icon.svgThis article incorporates text from this source, which is in the public domain.