What type of coal was exposed to the highest temperature and pressure for the longest time?
Anthracite coal is the type that has been exposed to the highest temperature and pressure for the longest time. It has a high carbon content and is the most mature form of coal, often found deep within the Earth's crust.
Why might surface mining be less risky for miners than underground mining?
Surface mining is often less risky for miners than underground mining because it is conducted in open pits or quarries, reducing the risk of cave-ins or tunnel collapses. Surface mining typically involves less exposure to hazardous gases and chemicals that are common in underground mines. Additionally, surface mining operations are generally more mechanized, reducing the need for as much manual labor in potentially dangerous conditions.
Why is coal only found on certain places on earth?
Coal forms from the remains of ancient plants that have been buried and subjected to pressure and heat over millions of years. The distribution of coal deposits is determined by the conditions that were present during the time of coal formation, including the presence of swamps and the availability of plant material. These conditions were not uniform across the planet, leading to the uneven distribution of coal deposits.
How might the burning of coal in one area of the country affect the environment in another area?
Burning coal releases pollutants that can be carried by wind over long distances, affecting air quality and contributing to issues like smog and acid rain in other areas. It can also deposit harmful substances like mercury into water bodies, impacting aquatic ecosystems far from the source of the pollution. Additionally, coal combustion is a major contributor to global climate change, with emissions from one area contributing to broader environmental impacts worldwide.
Why would you expect a seam of coal to be deep in the ground?
A seam of coal is typically formed from plant material that has been buried and subjected to heat and pressure over time. Since the process of coal formation requires significant time and burial depth, it is common for coal seams to be found deep underground. Additionally, geological processes such as mountain-building and erosion can contribute to burial of coal seams over time.
Ask us anythingWhich best explains how coal deposits formed?
Coal deposits formed millions of years ago from the remains of ancient plants and organic material that were buried under sediments and subjected to heat and pressure. This process, known as coalification, transformed the plant material into coal over time. The type of coal formed depends on factors such as the amount of heat and pressure applied during the process.
What states have coal and oil deposits?
States with significant coal deposits include Wyoming, West Virginia, and Kentucky. States with significant oil deposits include Texas, Alaska, and North Dakota.
How frightening was it and is it down in a coal mine?
There are two types of coal mines: a slope mine and a vertical shaft mine. There is also surface mining, where rock is blasted and rock and earth are moved aside or trucked away as they expose coal veins.
We'll focus on slope mines and vertical mines.
Slope Mines
A slope mine originally started out (early 1800s) as a hole dug into the hillside, typically where coal was already seen on the surface (example: banks of the Monongahela River). To access those slope mines, men simply crawled into the hole on their bellies or backs, continually digging forward and pulling out earth, stones, and coal. This would be similar to today's gem hunting in the western US mountain areas, where men and women lay on their backs or bellies to dig deeper under the rock face or under a boulder.
Expansion of Slope Mines
Eventually, slope mines were enlarged so a man could walk semi-upright or be seated in a rail car to be taken deeper into the mine.... so the mine's roof was perhaps 4 feet high from the ground. Many West Virginia mines were slope mines originally.
Vertical Mines
Vertical mines means men could access the mine via an elevator system. An elevator car would take a team down and bring the men back up. These deep mines typically need ventilation shafts to bring air in, and for emergency escape IF assisted from the surface. For example, "The Quecreek Mine rescue took place in Somerset County, Pennsylvania, when nine miners were trapped underground for over 77 hours, from July 24 to 28, 2002. All nine miners were rescued." This was accomplished through a newly bored rescue hole, similar to a wide air vent bore hole.
Vertical mines by the late 1800s included a surface tipple and a coal conveyor system from within the mine to the surface, along with an elevator-cage system. Today's coal mines are pretty much the same, except much larger and more mechanized; men either walk in, eventually stooped over, or ride in cars on rails; or use elevator-cages.
HAZARDS OF MINES
One of the worst mine disasters happened at the Marianna Mine, Marianna PA in Washington County, PA (SW PA). "At 10:55 a.m. on the morning of Saturday, November 28, 1908, an explosion occurred in the mine which killed 154 men and left only one survivor. Although the mine was quickly refurbished by the Pittsburg Buffalo Company, the colliery's fortunes flagged. By 1914, the mine was sold to the Union Coal and Coke Company and later to Bethlehem Steel which continued to extract coal until 1988, when the main conveyor caught fire. The fire was extinguished, but the mine closed anyway." (Wikipedia) Many of the men could not be reached and are entombed there.
Many coal mines became tombs throughout the 1800s. Many mines had roof/slate falls that killed one or more miners. Many NE US miners came as immigrants to work in the coal mines. In the bituminous mines, especially, there were many debates/fights over miner qualifications (the "practical miner") and the beginning of Mine Safety measures began in the late 1800s. The United Mine Workers UMW union was also started in SW PA in the early 1900s.
TO BE A MINER YOU MUST BE ABLE TO
This is what millions of coal miners have done since the late 1700s. Millions of men did this job to supply coal and coke to steel factories, coal to railroads to power train engines, and to burn for heating homes and businesses. Men (and even women now) take huge risks to continue going underground for this resource.
Poor families also used to send children to coal refuse waste piles of earth that had bits of coal embedded in clay, to chisel coal from the rock/clay to use in families' homes. Poor and homeless often built fires in coal refuse mounds to stay warm in winters. Coal refuse would catch fire also, from internal combustion due to the build-up of heat inside the mound of coal refuse. Many small towns had refuse pits that burned for years. (Burning coal refuse--the unusable coal-- creates red dog, which was used on many rural roads before they made asphalt.)
One town's coal mine caught fire and is still burning under Centralia, PA which started in the 1960s, and eventually forced the US Government to relocate its residents.
Which state in the southwest has the most coal deposits?
Wyoming has the most coal deposits in the southwest region of the United States. It is the top coal-producing state in the country due to its extensive coal reserves and mining operations.
What is one major environmental problem caused by coal mining?
Water and land pollution caused by the waste deposits being dumped. Potential dangers of landslide from shale waste (Aberfan 1963). Waste entering the water course. Industrial machinery producing CO2 emissions, Dangers of emphysema to workers from dust created. and of course land displacement such as subsidence
Are coal beds found in swampy areas?
No. The plants from which coal was formed grew millions of years ago in places that were often swampy, but the Earth has changed a lot since then as the continents moved around, so the coal seams occur in all sorts of places now.
Why did coal mining decline in wales?
Coal mining in Wales declined due to a variety of factors including cheaper coal imports, depletion of easily accessible coal reserves, changing global energy markets, stricter environmental regulations, and increased competition from alternative energy sources. These factors collectively led to a structural decline in the coal mining industry in Wales.
A coal bucket is a container specifically designed for carrying and storing coal. Its design typically includes a handle and often a spout for easily pouring coal into a fireplace or stove. It is used to transport coal from storage to the place where it will be used for heating.
What is the region with the most coal deposits called?
The region with the most coal deposits is called the Powder River Basin. It is located in the United States, specifically in Wyoming and Montana, and is one of the largest coal-producing regions in the world.
How many years is the coal from Folen mine likely to run out?
The coal reserves at the Folen mine are estimated to last for approximately 20-30 years, depending on factors such as extraction rate and demand. After that, the mine may need to be closed unless new reserves are discovered or alternative energy sources are utilized.
What is the environment necessary for coal to form in?
Coal forms from the accumulation and burial of plant material in oxygen-poor environments, such as swamps and bogs. The lack of oxygen prevents decay and allows the organic matter to undergo transformation into coal through heat and pressure over millions of years.
What type of mine may be used to remove coal from a coal seam deep underground?
A longwall mining technique is often used to remove coal from deep underground coal seams. It involves a shearer cutting the coal along the face of the seam while hydraulic roof supports move forward, allowing the roof to collapse behind the shearer.
Sea-coal is a historical term for coal that was retrieved from coastal areas or imported by sea. It was commonly used for fuel in the past before being phased out in favor of other sources of energy.
How is coal removed from earth..?
Coal is typically removed from the earth through surface mining or underground mining. In surface mining, large machines called draglines or shovels remove the coal from the surface of the earth. In underground mining, miners dig tunnels to access the coal seams and extract the coal using machinery.
Coal is formed in what depostitional environment?
Coal is formed in a swampy, low-oxygen environment where plant material can accumulate and slowly decompose. Over time, the accumulated plant material undergoes compaction and chemical changes, transforming into coal.
What causes dead organisms to change into coal and oil?
They must be buried in the sediment pile and start to decompose aerobically as the pile thickens, they become heated and the decomposition products polymerize to form oils. If the carbon content is high and the organic matter in thick concentrations, solid carbon is also left as a residue (coal).
What is one environmental problem cause by coal mining?
Water and land pollution caused by the waste deposits being dumped. Potential dangers of landslide from shale waste (Aberfan 1963). Waste entering the water course. Industrial machinery producing CO2 emissions, Dangers of emphysema to workers from dust created. and of course land displacement such as subsidence
What best explains how coal deposits formed?
Primitive plants such as giant ferns and horsetails died and sank to the bottom of the swamps where they grew about 300 million years ago. In the anaerobic conditions there they did not completely rot away, but were gradually buried deeper and deeper. The effects of heat and temperature gradually transformed them into coal.
Sea coal is a type of coal found in coastal areas which has been washed up or exposed by the sea. It is typically a low-grade coal that has been weathered and eroded, and is often used historically for heating and cooking fuel.