Mining In Guyana
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Mining in Guyana is a significant contributor to the economy owing to sizable reserves of
bauxite Bauxite () is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium and gallium. Bauxite consists mostly of the aluminium minerals gibbsite (), boehmite (γ-AlO(OH)), and diaspore (α-AlO(OH) ...
,
gold Gold is a chemical element; it has chemical symbol Au (from Latin ) and atomic number 79. In its pure form, it is a brightness, bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal ...
, and
diamonds Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is tasteless, odourless, strong, brittle solid, colourless in pure form, a poor conductor of electricity, and insol ...
. Much of these resources are found in Guyana's Hilly Sand and Clay belt, a region that makes up 20% of the country.


Gold

In 2012, export receipts for gold amounted to US$1.5 billion, nearly half of the country's total export receipt value. All gold mined in the country must be sold to the Guyana Gold Board, and sent abroad for refining at the Royal Canadian Mint. The gold
mining industry Mining is the extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a la ...
is made up of small and medium-scale operations that support as many as 12% of the population. In the 16th century, European explorers were drawn to
the Guianas The Guianas, also spelled Guyanas or Guayanas, are a geographical region in north-eastern South America. Strictly, the term refers to the three Guianas: Guyana, Suriname, and French Guiana, formerly British, Dutch, and French Guiana respectiv ...
due to rumors of a golden city called Manoa, ruled by the golden king
El Dorado El Dorado () is a mythical city of gold supposedly located somewhere in South America. The king of this city was said to be so rich that he would cover himself from head to foot in gold dust – either daily or on certain ceremonial occasions â ...
. This legend instigated settling of the region, but it wasn't until the 1840s when gold was found in significant quantities. After emancipation, small-scale gold mining was undertaken by many newly-freed
Afro-Guyanese Afro-Guyanese, also known as Black Guyanese, are generally descended from the enslaved African people brought to Guyana from the coast of West Africa to work on sugar plantations during the era of the Atlantic slave trade. Coming from a wide arr ...
, who still make up a significant portion of the modern mining industry. Also known as
pork-knocker Pork-knockers are freelance Guyanese prospectors who mine for diamonds and gold in the alluvial plains of the Guyanese interior. Pork-knockers have been responsible for discovering large deposits of gold and diamonds. The name "pork-knockers" re ...
s, these artisanal gold and diamond miners have created or been a part of the folklore in Guyana. In 1904, Peters Mine was the first mine opened in Guyana. From 1904 to 1909, it produced 39,800 ounces of gold (approximately 0.8 oz. per ton of ore), and in 1915 to 1916 produced another 1,103 ounces. Surveys conducted by U.S. geologists were favorable, but the mine was abandoned largely due to its inaccessibility. Nonetheless, it remained the biggest mining operation in Guyana until Omai Mine was opened in 1993. Peters Mine was obtained in 1996 by Guyana Goldfields. Government initiatives have favored domestic gold mining operations, such as the 1989 Mining Act which encouraged many small-scale mining companies. When Omai Mine closed in 2005 it was ten years until the openings of two large-scale open pit mines in 2015:
Aurora gold mine Guyana Goldfields was a Canadian company that owned and operated the Aurora gold mine in Guyana. Before being acquired by Zijin Mining in 2020, Guyana Goldfields was a publicly traded company with shares listed on the Toronto Stock Exchange and p ...
, a Canadian-owned operation and Troy Resources. Guyana has not been immune to many of the struggles typical of resource rich countries. The price of gold attracts workers away from agriculture labor for quick gains, the result of which can have a detrimental effect on Guyana's overall economy.
Boomtown A boomtown is a community that undergoes sudden and rapid population and economic growth, or that is started from scratch. The growth is normally attributed to the nearby discovery of a precious resource such as gold, silver, or oil, although t ...
s are often plagued with issues related to prostitution and excessive violence. Abandoned pits that accumulate water have become vector points for disease such as
malaria Malaria is a Mosquito-borne disease, mosquito-borne infectious disease that affects vertebrates and ''Anopheles'' mosquitoes. Human malaria causes Signs and symptoms, symptoms that typically include fever, Fatigue (medical), fatigue, vomitin ...
and
dengue Dengue fever is a mosquito-borne disease caused by dengue virus, prevalent in tropical and subtropical areas. Asymptomatic infections are uncommon, mild cases happen frequently; if symptoms appear, they typically begin 3 to 14 days after ...
. Gold smuggling is a perennial issue. In 2016, the Minister of Natural Resources said that "approximately 15,000 ounces of gold is being smuggled from Guyana each week" with the possibility that gold from Columbia or Venezuela is also smuggled through the country's porous borders. Smugglers often go to
Suriname Suriname, officially the Republic of Suriname, is a country in northern South America, also considered as part of the Caribbean and the West Indies. It is a developing country with a Human Development Index, high level of human development; i ...
to sell gold due to lower taxation of 1% tax and 2% royalty, compared to Guyana's 2% tax and 5% royalty. Brazil and the USA are also major destination points of smuggled gold. In 2012, US$11.5 million of gold was seized in Curacao. Despite government enacting a ban on the use of mercury, it is still used for gold extraction by small-scale operations. A 1995 cyanide spill associated with large-scale gold mining at Omai Mines caused significant damage to the eco-system of the Highland region.


Bauxite

Guyana's mines yield a high quality calcined bauxite, with uses in the refractory, abrasive and chemical markets for high temperature applications. Guyana's reserves of bauxite was known to be 350-million-tons. Major mining sites are at Linden, south of Georgetown, and
Kwakwani Kwakwani is a mining and logging village on the Berbice River in the Upper Demerara-Berbice Region of Guyana. Its altitude is 44 metres (147 feet). Kwakwani is approximately 100 km south of Linden, Guyana, Linden. In 1942, the Berbice Bau ...
on the
Berbice River The Berbice River , located in eastern Guyana, is one of the country's major rivers. It rises in the highlands of the Rupununi region and flows northward for through dense forests to the coastal plain. The river's tidal limit is between from the ...
In 2016, 1,479,090 tonnes of bauxite was produced.


History

Bauxite mining Bauxite () is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium and gallium. Bauxite consists mostly of the aluminium minerals gibbsite (), boehmite (γ-AlO(OH)), and diaspore (α-AlO(OH) ...
began in 1914 and took off in the 1920s with substantial investment from large-scale, foreign operations such as Demerara Bauxite Company (Demba) owned by Canada's
Alcan Alcan was a Canadian mining company and aluminum manufacturer. It was founded in 1902 as the Northern Aluminum Company, renamed Aluminum Company of Canada in 1925, and Alcan Aluminum in 1966. It took the name Alcan Incorporated in 2001. During ...
, and Reynolds Bauxite Company owned by
Reynolds Metals Reynolds Group Holdings was a New Zealand–based packaging company with roots in the former Reynolds Metals Company, which was the second-largest aluminum company in the United States, and the third-largest in the world. Reynolds Metals was acqu ...
of the US. The first bauxite mine in the
Upper Demerara-Berbice Upper Demerara-Berbice (Region 10) is a region of Guyana, bordering the regions of Essequibo Islands-West Demerara, Demerara-Mahaica and Mahaica-Berbice to the north, the region of East Berbice-Corentyne to the east, and the regions of Potaro-S ...
region opened in 1916. At that time, Guyana was still the British colony known as
British Guiana British Guiana was a British colony, part of the mainland British West Indies. It was located on the northern coast of South America. Since 1966 it has been known as the independent nation of Guyana. The first known Europeans to encounter Guia ...
. Aluminium became an important resource during the
First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
as it was a key material to make aircraft, and so the global demand for bauxite increased, leading companies to expand development in Guyana. The British government was unwilling to allow Alcan to own the bauxite mines in Guyana because the United States was in control of the Canadian company. The British government was unsuccessful at preventing Alcan from legally owning the bauxite mines in Guyana due to the United States government threatening to cease providing Britain with weapons needed to fight in the war. The
British Aluminium Company British Aluminium was an aluminium production company. It was originally formed as the British Aluminium Company Ltd on 7 May 1894 and was subsequently known as British Alcan Aluminium plc (1982-1996). History In the late 1880s and early 1890s ...
(B.A.C.) acquired leases to develop bauxite mines on the Christianburg land in Linden following World War I, in order to compete with Demba, who at the time, had control of the majority of bauxite in Guyana. In 1949, the B.A.C's leases were transferred to the Plantation Bauxite Company Ltd. and then transferred to Demba in 1957. Bauxite production in the 1960s was around 3 million tons per year and by the early 1970s, the two companies made up 45 percent of the nation's foreign exchange earnings. After Guyana's independence from Britain, there was a political shift towards nationalizing these large, foreign-owned industries. The government of Guyana nationalized Demba in 1971. However, the resulting government-run industries suffered from poor management, commodity price fluctuation, and global competition and production fell to 1.3 million tons by 1988. When privatization was used to improve economic prospects, majority shares were purchased once again by foreign companies. In 1985, Reynolds Bauxite Company was one of the first foreign companies to return, providing managerial assistance to Guymine at Kwakwani. Omai Bauxite Company, owned by Canadian
IAMGOLD Iamgold Corporation (formerly Iamgold International African Mining Gold Corporation) is a Canadian company that owns and operates gold mining, gold mines in Burkina Faso and Canada. Headquartered in Toronto, the company was incorporated in 1990, ...
, was bought in 2007 by BOSAI, a Chinese company. The other major mine in Berbice, formerly Aroaima Mining Company, is owned by Bauxite Company of Guyana Inc., a subsidiary of Russian-owned Rusal. The government maintains part ownership in both companies: 30% of Omai and 10% of Bauxite Company of Guyana. First Bauxite Corporation made plans to develop mining at Bonasika in the Essequibo River, which after delays from lack of financing, started operations in 2020.


Aluminum

Guyana had one alumina plant for separating aluminum oxide from raw bauxite ore, but it closed in 1981 as a result of "inefficient management, declining world prices for bauxite, and prolonged strikes by workers". Prior to closure, production was about 300,000 tons processed per year.


Environmental impacts

Increases in bauxite production have led to bauxite dust air pollution in the Linden area by the facility. Bauxite mining has impacted the rainforests and other habitats in Guyana through
deforestation Deforestation or forest clearance is the removal and destruction of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. Ab ...
,
habitat fragmentation Habitat fragmentation describes the emergence of discontinuities (fragmentation) in an organism's preferred environment (habitat), causing population fragmentation and ecosystem decay. Causes of habitat fragmentation include geological proces ...
, and
soil degradation Soil retrogression and degradation are two regressive evolution processes associated with the loss of equilibrium of a soil health, stable soil. Retrogression is primarily due to soil erosion and corresponds to a phenomenon where succession revert ...
. Bauxite exports increased by 400% in Guyana during the
Second World War World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
, and so the environmental consequences became more severe due to the expanding industry. Tropical forests were cleared to create new mines and the
Bayer process The Bayer process is the principal industrial means of refining bauxite to produce alumina (aluminium oxide) and was developed by Carl Josef Bayer. Bauxite, the most important ore of aluminium, contains only 30–60% aluminium oxide (Al2O3), the ...
left behind
red mud Red mud, now more frequently termed bauxite residue, is an industrial waste generated during the processing of bauxite into alumina using the Bayer process. It is composed of various oxide compounds, including the iron oxides which give its red ...
and air pollution. The natural environment of the community Coomacka (Kumaka) in Upper Demerara-Berbice has been altered by bauxite mining. The construction of bauxite mines required sand to be cleared from the land, which eventually led to the formation of a sand beach by the Demerara River. The sand beach has increased flooding in Coomacka. The mining companies did not implement restoration measures for the natural environment after bauxite mines were closed in Linden, and so pit lakes exist in areas where
open pit mines Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique that extracts rock or minerals from the earth. Open-pit mines are used when deposits of commercially useful ore or ro ...
used to be. Pit lakes can have negative impacts on groundwater. In 2018, some pit lakes in Linden were found to have higher levels of aluminium, manganese, and iron, and they were found to be acidic.


Social impacts

The population of Upper Demerara-Berbice in 1960 was 17,553, with 38% of the people being local, and the other 62% having migrated to the area to seek work at the bauxite mines. The MacKenzie area of Upper Demerara-Berbice was socially and physically divided based on race during colonial rule of British Guiana. In 1960, about 74% of the white population resided in South MacKenzie, and 98% of the Black, brown, and mixed populations lived in North MacKenzie. The Demba company determined where the residents could live. The white population in South MacKenzie had larger houses that were built better and had sewage systems, whereas the houses in North MacKenzie were smaller and rarely had indoor bathrooms. The majority of non-manual jobs in MacKenzie were held by the white population, leaving the non-white population to have the lower-paid manual jobs. The unequal working and living conditions the Black, brown, and mixed people of MacKenzie faced resulted in the formation of the British Guiana Labour Union (B.G.L.U.) in 1944. 1,900 workers were fired after the efforts to unionize in 1944. A 64-day strike in 1947 led to the union gaining official recognition, but this time under the British Guiana Mineworkers Union (G.M.W.U.). From 1962 to 1970, there were 47 strikes at Demba by the G.M.W.U. One notable strike was in 1964 when 3,000 employees went on strike for a week in response to a white employee calling the
Afro-Guyanese Afro-Guyanese, also known as Black Guyanese, are generally descended from the enslaved African people brought to Guyana from the coast of West Africa to work on sugar plantations during the era of the Atlantic slave trade. Coming from a wide arr ...
workers "cannibals". The 1981 closing of the Alumina Plant in Linden directly resulted in 1,600 people losing their jobs. By the 1980s, bauxite production had decreased, with around 600 workers being a part of the bauxite industry in Linden. Bauxite mining was the main industry in Linden, and so the reduction of bauxite mining led to many workers having to find employment outside of the city. In 2009, 57 employees of the Bauxite Company of Guyana Inc. were fired for participating in a strike to campaign for higher wages and better workers' rights. The employees who were a part of the strike were unable to seek employment at other bauxite mines due to their participation. US sanctions relating to Russian involvement in the 2016 elections has created issues.


Diamonds

Guyana does not have a significant diamond cutting industry so nearly all exports are rough diamonds. In 2013, rough diamond exports totaled at US$12 million (144,000 Carats). The industry is mostly made up of medium-scale operations that use land
dredging Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing d ...
techniques however, diamond mining has been on the decline. Historical production totals are difficult to produce due to the high rates of smuggling due to factors similarly affecting the gold industry. Diamond mining techniques are very similar to that of gold mining processes, so there is a
substitution effect In economics and particularly in consumer choice theory, the substitution effect is one component of the effect of a change in the price of a good upon the amount of that good demanded by a consumer, the other being the income effect. When a ...
between gold and diamonds based on the commodity price.


Other minerals

Other minerals that are mined in smaller scale include silica sand, shells, kaolin, semi-precious stone, and stone aggregate.


Petroleum

In 2015, a major off-shore oilfield was discovered by Esso Exploration and Production Guyana Ltd. (a subsidiary of
ExxonMobil Exxon Mobil Corporation ( ) is an American multinational List of oil exploration and production companies, oil and gas corporation headquartered in Spring, Texas, a suburb of Houston. Founded as the Successors of Standard Oil, largest direct s ...
of the United States, 45%;
Hess Corporation Hess Corporation (formerly Amerada Hess Corporation) is an American global independent energy company involved in the oil exploration, exploration and production of Petroleum, crude oil and natural gas. It was formed by the merger of Hess Oil and ...
of the United States, 30%; and
CNOOC Ltd. China National Offshore Oil Corporation, or CNOOC Group (), is the third-largest national oil company in China, after CNPC (parent of PetroChina) and China Petrochemical Corporation (parent of Sinopec). The CNOOC Group focuses on the exploitat ...
of China, 25%). The Liza oilfield discovery was considered to be one of the biggest crude petroleum finds of the decade. In 2016, ExxonMobil announced Esso has discovered additional high-quality oil-bearing sandstone resources in the offshore Stabroek Block of the oilfield.


Major Production Overview


Important Organizations

* Guyana Geology and Mines Commission (GGMC) * The Guyana Gold Board * Guyana Gold and Diamond Miners Association (GGDMA) *Guyana Bauxite and General Workers’ Union (GB&GWU)


References


External links


Guyana Geology and Mines Commission
{{South America topic, Mining in