Coal (fuel source)

Coal is formed from the remains of plants that lived in swamps and marshes millions of years ago. These organic materials were buried under layers of sediment and compressed over time. Coal deposits are typically found in areas where these conditions existed, such as former swamps and wetlands.

Most coal is sedimentary, but anthracite is bituminous coal that has undergone metamorphosis to become a metamorphic rock.

The coal deposits in Antarctica are believed to have formed during periods when the continent had a significantly warmer climate due to its positioning on the Earth's surface millions of years ago. These deposits are remnants of lush vegetation that thrived in a milder climate before Antarctica became the frozen landscape we see today due to continental drift and changes in Earth's climate.

no they ahven ttheyve been found in the mountinous capsual swhich haven t seen day light in over 400,000 years

It has been found Idk how but this person has no idea what their talking about >:/

Coal deposits can vary in depth, typically ranging from a few hundred feet to over a mile underground. The depth of coal deposits depends on various factors such as geological location, formation history, and mining techniques used. In some cases, miners may have to dig deep shafts or tunnels to access coal reserves.

In the past, Native American Indians picked coal from river banks such as along the Monongahela River in SW Pennsylvania. The banks were steep in some places, and the rich vein of bituminous coal just "fell" out of the banks. In fact, the name Monongahela refers to falling banks. Indians were first to know that coal could be burned. They also scooped up petroleum that formed in puddles on the ground where it had seeped out from underneath. They knew oil healed skin wounds and rashes (hence Whites made petroleum jelly in the 1800s-- what we know as Vaseline today.

From "falling banks" where coal tumbled out, Whites could see coal seams going back into the cliffs. They dug with shovels and used slope mines to access the coal. Slope mines were either straight __ tunnels, or \ downward sloping. They soon found that coal mine roofs can fall. So they cut timber to hold up slate and coal.

In direct tunnel mining, it started off as a narrow opening that formed a tunnel straight in. ___ Miners used pickaxes and shovels to dig the coal out. They brought in donkeys to pull out carts laden with coal. They brought in birds in cages-- if a bird died, they knew to get out or odorless, colorless methane gas could kill the men. As long as it was safe, men followed the coal veins. Instead of timber in deeper mine sections, they left pillars of coal to hold up mine roofs. Coal pillars could stay until they mined out deeper sections. Mines were also cut with low roofs. So men were either bent over or crawled. Every once in a while, they'd dig out a chamber high enough for a man to stand. Eventually, miners laid railroaf tracks and used small "cars" to bring up men or coal, and take men back down again.

Other mines were vertical. A vertical shaft was drilled (much like oil was drilled after 1880). An elevator was put in to carry men down. A coal tipple with a conveyor belt brought coal from the deep recesses of the mine, up through the levels, and out onto the Tipple. In SW PA, WV, Ohio, Indiana, and KY, vertical shaft mining brought up many hundreds of tons of coal that men spent 3-shifts a day digging out of a mine.

In slope mining, tunnel mining, and vertical shaft mining, coal companies pushed the men to bring out every chunk or sliver of coal they could find. This turned into longwall mining, where a manmade wall was stripped of coal. Coal mines became mazes of tunnels, shafts, and stripped walls. In these mazes, an empty chamber on one side might have a tunnel on the other side -- and without warning, methane could build up in a once-used area. As men blasted using TNT (1800s through 1940s), blasting could set off an explosion from hitting a methane pocket. As well, mines have sources of groundwater leaking in constantly. Old mines often had chambers that filled with water, and one strike on the other side could unleash a flood within the mine.

On all of these mines, often coal could not easily be separated from clay in which it had formed. These chunks were carted out to a refuse pile outside the mine. Poor folks often trespassed to pick out coal to take home for heating or cooking. Homeless men (beggars) often lit a fire near the refuse and slept there. Sometimes, their made fires made an entire refuse heap start to burn. As well, these refuse heaps created an internal heat that could make the pile combust from within. Combustion fires would burn until all the coal burned off. This is how they discovered they could use the by-product of the burning. They called it "reddog" because of its red, pink, purple coloring. Reddog is a hard, often brittle type of "clinkers", like what would be in a coal furnace after the coal burned. Reddog could be used on rural roads as road covering (instead of driving on mud that could make deep trenches from tires). Reddog was used up through the 1970s on roads.

One other time of mining is surface mining. We know bituminous coal seams occur throughout the Pittsburgh Plateau (geology area). So men can bring in heavy equipment and dig out cliffs until they've stripped out all the coal and rocks.

The Mine Reclamation Act provided that mine companies must cover over old mines. They make parks or large hills.... and pretend a mine was never there.

Surface mining is still used. Shaft mining is still used. Many older mines are still used, too, but all have been automated. Most miners are out of work, with smaller shifts manned by fewer men.

Coal is extracted from the ground through mining methods such as surface mining and underground mining. Surface mining involves removing the top layers of soil and rock to access the coal seams, while underground mining involves tunnels and shafts to access coal deposits deep below the surface. Once extracted, the coal is processed and transported for various industrial uses.

Coal is removed by miner because the take big machines into the mines and drill into the mines to get to the coal!*By Beth Logan age 10 Paisley school RD PA1 3AU

Coal is removed by miners because the take big machines into the mines and drill into the mines to get to the coal!*By Beth Logan age 10 Paisley school RD PA1 3AU

Coal deposits are layers of sedimentary rock containing coal, formed from the accumulation of buried plant material over millions of years. These deposits are mined for coal, which is a fossil fuel used for electricity generation and heating. Coal deposits can vary in thickness, quality, and location around the world.

Coal may be mined in underground mines, typically by machinery that pulls the coal from the seams, and transports it to the surface. Coal is also mined in surface mines by removing the soil and rock on top of the coal, and then using machinery to break the coal from the seams, and move it to storage.

The largest coal reserves are found in countries like the United States, Russia, China, India, and Australia. These countries have significant deposits of coal that are mined for energy production and other purposes.

Coal is found in layers because it is formed from the remains of plants that were buried and compacted over millions of years. Each layer represents a different period of plant growth, leading to the formation of distinct coal seams.

Methane layering in underground coal mining refers to the presence of methane gas accumulating in layers within coal seams. This buildup of methane poses a significant safety hazard as it can lead to explosions if ignited. Effective methane monitoring and control techniques are essential in coal mining to prevent such incidents.

Coal is not a intrusive igneous rock but is instead a form of Carbon. The carbon is heated and pressured from low grade metamorphism. Coal is formed mostly from marshes or swamps millions of years ago, think of an environment like the everglades in Florida. A igneous rock would be something like a gabbro or granite.

Coal is removed from deep underground through a process called underground mining. This involves digging shafts into the ground, then using machinery to extract the coal from the coal seam. Miners then transport the coal to the surface for processing and distribution.

First of all coal is not an unusual sedimentary rock, it is very abundant for the time being. The following is a tutorial from the supplied web site:

Coal is clearly made up of lots of compressed bits of dead plants. But when we walk around in the world we usually see old bits of wood and leaves decaying and rotting away (that is, getting eaten by bacteria, insects, and all sorts of organisms involved in decay and recycling of organic matter). For thick layers of plant stuff to get fossilized as coal, something must be going on.

Coal Formation starts with accumulation of organic matter (bits of dead plants) in a low oxygen setting such as a peat bog. The organic matter accumulates and forms a bed of peat. The peat bed gets buried by other sediments and under heat and pressure begins to transform to a low grade coal - a Lignite. More heat and pressure further metamorphose the lignite into Bituminous coal. Even more heat and pressure metamorphose the bituminous coal into a nice hard shiny Anthracite.

Coal is usually classified into three grades: Lignite, brown coal; Bituminous coal, soft coal; and Anthracite, hard coal. Anthracite is dense, nice and hard, and shiny.

The first step in the formation of coal is the accumulation of plant debris in low oxygen conditions, such as in this damp low spot on a moor. Peat exposed to heat and pressure from burial beneath other sediments becomes compressed and chemicaly changes into low grade coals such as this lignite, and under further heat and pressure is converted to higher grade coals. The pressure from overlying sediments that bury a peat bed will compact the coal. Peats transform to low grade lignites when they are compressed to about 20% of their original thickness. Lignite typicaly transforms to bituminous coal as it is compressed further and heated to between 100 and 200°C. This drives much of the water and other volitiles from the coal. Longer exposure to elevated temperature will further drive volatiles from the coal, and drive chemical reactions that produce anthracite. Anthracite coals are typicaly compressed to 5-10% of the orginal thickness of the peat bed, and contain less than 10% water and other volatiles.

Coal beds are layers of hardened plant material that have been compressed over millions of years underground. These beds are rich in carbon and are one of the main sources of coal used for energy production. Coal beds are often found in sedimentary rock formations.

Coal is found in various places like underground. It is mainly found in the crust but very rarely found in the mantel.

The method used to extract shallow deposits of coal from the earth is surface mining, specifically using methods like strip mining and open-pit mining. These methods involve removing the overlying vegetation, soil, and rock to access the coal seams underneath, making it easier and more cost-effective to extract the coal.

coal is a sedimentary rock very high in carbonaceous content.

Coal is obtained through mining, which involves extracting coal deposits from underground or surface mines. In underground mining, coal is accessed by digging tunnels into the earth to reach the coal seams. In surface mining, large machinery is used to remove overlying rock and soil to reveal the coal seams underneath.

Todays coal was formed millions of years ago. Sum of the earliest coal deposits formed only about 1 million years ago whereas the old deposits are from 300 million years ago.

Coal is formed where plant life has died and then eventually sink to the bottom of swampy areas or the water level has risen and covered the dead plant life. Over time as the amount of dead plant life accumulates at the bottom of the swampy area it turns into a dense soggy material known as peat then as the land changed and the pressure upon the peat built due to deeper burial, sandstone and sedimentary rocks that may have formed due to the changing land, the water in the peat is squeezed out and when heat is added from the earths core, the peat is turned into coal.

Coal deposits form over a long period of time through biological and geological process. Dead plant matter is converted into peat, which is converted into lignite. Lignite is converted into sub-bituminous coal, after that bituminous coal, and lastly anthracite.

No, it is formed when forests die and are covered with layers of rock which compress it and over time turns it into coal. Buried remains of marine organisms formed oil, following mass extinctions,where the oceans have stagnated.