Over millions of years, clay-like material that falls to a lake bottom is subject to intense pressure and heat. This results in an incredibly slow and gradual process of change. The clay-like material will transform into a sedimentary rock, such as shale or mudstone. These rocks are composed of particles of clay and other minerals that have been cemented together as a result of the pressure and heat. The sedimentary rock will also contain fossils and other evidence of the organisms that were present at the time the clay-like material was deposited. This is because the process of sedimentary rock formation preserves and encases the fossils and other organic material that was present in the clay-like material when it was deposited. Thus, after millions of years of pressure and heat, the clay-like material that fell to a lake bottom is transformed into a sedimentary rock containing fossils and other evidence of past life.
They are called Biologic sedimentary rocks. Formed when large number of living thing die.
The carbon atom eventually formed coal through a process called coalification. This begins with the accumulation of plant material, such as ferns and trees, in swampy environments, where anaerobic conditions prevent decomposition. Over millions of years, layers of sediment build up, applying heat and pressure, which transform the organic material into peat and then gradually into coal through physical and chemical changes. This process can take millions of years, resulting in the dense carbon-rich material we know as coal.
If put under tremendous pressure for millions of years - which is what happened to slate and sandstone.
Bacterial growth within the plant material causes a gradual breakdown of molecules in the plant tissue, leaving carbon and some impurities behind. This material that eventually will become coal after millions of years.
The necessary conditions for oil and natural gas are about the same. You need: a) a trap or natural confinement of the organic material. An impervious cap rock prevents material from leaking out. The organic material may be prevented from migrating due to structural elements such as sealing faults. The deposit may be underlain with water, to trap the organic material. b) organic material, in sufficient supply. This material is composed of dead animals and plants. c) right pressure and temperature to allow the organic material to be transformed into hydrocarbons d) time- lots of it, at least a few millions of years. So, why does some organic material become gas and others oil. High temperatures will favor gas. The mix of organic material will also be a factor which relates to what was deposited as millions of years ago.
Coal takes millions of years to form from the pressure of dead plants and trees in swamps.
Millions of years ago, coal was plant material that accumulated in swamps and peat bogs. Over time, the plant material was buried under layers of sediment and subjected to heat and pressure, transforming it into coal.
Coal is formed from plant material that is subjected to high pressure and heat over millions of years. This process typically involves the burial of plant matter in sedimentary rocks and the removal of oxygen through decomposition, resulting in the formation of coal.
Coal is formed by the compression of dead plant material over millions of years. This organic material undergoes chemical and physical changes due to pressure and heat, transforming it into coal.
Pressure from sediment turned decaying plankton at the bottom of the ocean into natural gas.
Natural gas typically forms over millions of years from the decomposition of organic material, such as plants and marine organisms, under high pressure and heat deep within the Earth's crust. The process of natural gas formation can vary, but it generally takes millions of years for natural gas deposits to develop.
Coal is considered to be organic because it is formed from the remains of plant material that accumulated and underwent a process of heat and pressure over millions of years.
Coal is formed from prehistoric plant material that is buried and subjected to high pressure and temperature over millions of years. This process, known as coalification, results in the formation of different types of coal depending on the level of heat and pressure applied.
it takes sevaral thousandes of yearsor more
Coal is formed from the remains of plants that accumulated in swamps and peat bogs millions of years ago. Over time, the plant material was buried by layers of sediment, which exerted pressure and heat on the organic matter. This process, known as coalification, transformed the plant material into coal.
Fossil fuel forms from the dead organisms acted on by temperature and pressure of the earth over millions of years.
Organic material such as plants and animals gets buried underground and subjected to heat and pressure over millions of years, transforming into fossil fuels like coal, oil, and natural gas.