Open-pit mining

In their documentary called " The Devil 's mine" , Kief Davidson and Richard Ladkani portrait the mining near the city of Potosí. By a perspective of Basilio Vargas, a fourteen-year-old Bolivian boy who work in one of the Cerro Rico 's mines, the directors show us the labor condition of work and life of people on that field. Basilio Vargas is the firstborn in a family of a widow mother and two more siblings. Working in a small and improductive mine, he and his younger brother work for longs…

critical thinking skills through improving and completing the initial model. For instance, in a senior level course in “Mine design project” I start the class with the statement of the problem which is typically maximizing the net present value of a mining case study. First, I encourage the whole class to construct the building blocks of a conceptual model for the problem at hand through a series of “brain storming” sessions. Second, I divide the students into several groups and assign them the…

INTRODUCTION Lead is a bluish grey metal ,which is one of the useful and common metal that has been used by humans for over 6000 years1 it has high density ,ductility, poor electrical conductivity and more over which is soft and highly malleable in nature. these all properties were helping the early extraction and working with lead and makes it more popular among industrial and other mankind usages all over the world . Several millions of lead are consumed by world for the production of…

The Singareni Collieries Company Limited (SCCL) is a Government coal mining organization mutually possessed by the Government of Telangana and Government of India on a 51:49 value basis. The reserves of Singareni coal stretch over 350 Km of the Pranahita – Godavari Valley of Telangana with a huge amount coming up to 8791 million tons. SCCL is as of now working on 16 opencast and 31 underground mines in 4 regions of Telangana with an employee base of around 58,837. Sustainable Management in SCCL…

BHP Billiton is an Anglo-Australian multinational mining, metals and petroleum company with its headquarter in Perth, Australia. According to the revenues in the year 2013, BHP Billiton is the world's largest mining company and Australia's largest company. They specialize in mining, processing and oil and gas production at sites in over 25 countries, such as Canada, Chile, Peru and many more. Their main products happen to be coal, copper, iron ore, petroleum and potash. In BHP Billiton,…

process of gold mining 7000 years ago, between 4700 and 4200 BC. Miners risk their lives everyday working underground, to provide food on the table for their families and their children. The process of gold mining causes serious problems to our environment. Soon or later, these problems will affect the nature. The place that miners work in (underground) is very hot and dangerous which can cause accidents and disasters. Thousands and thousands of miners die each year from mining accidents. Not…

"The Chinese railway workers lived in camps, sleeping in tents or boxcars. They did their own cooking over open outdoor fires. They mainly ate a diet of rice and dried salmon, washed down with tea. With their low salaries they could not afford fresh fruit and vegetables, so many of the men suffered from scurvy (a painful disease caused by a diet without vitamin…

California Gold Rush occurred in 1848-1855. People from California and all over the world, went to California for gold. During the Gold Rush, California grew in cities and towns because of the increasing population. Because of the long journey, process of mining, and high crime rate were common, many individuals faced challenges during the California Gold Rush. Getting to California for the Gold Rush was a long journey. First, Gold Rush families had to choose between two routes to get to…

directed at the rock to release the gas inside. Water, sand and 596 chemicals are injected into the rock at high pressure which allows the gas to flow out to the head of the well. Mountaintop removal mining (MTR), also known as mountaintop mining (MTM), is a form of surface mining that involves the mining of the summit or summit ridge of a mountain. Coal seams are extracted from a mountain by moving the land, or overburden, above the seams. Both of these jobs are injecting our earth with…

Having the sensation of feeling rich and being the first ones to mine gold must have been amazing. During 1849, people in California began mining gold and unlike today where small amounts were found, these people were finding huge amounts of gold. This is what eventually led to the gold rush of 1849 when the largest mass of people in history began to move into California to get some gold for themselves. Many ended up leaving everything they had to go on a journey to California to get richer.…