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Petrification occurs when body parts of the organism are replaced by minerals dissolved in ground water. For example, a buried tree may have its wood replaced over millions of years by silica that is dissolved in the surrounding ground water.

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What are remains of organisms in tar amber or ice?

A. carbonaceous filmsB.molds and castsC.petrified remainsD.original fossil remains


How do fossils form through permineralization and carbonization?

Permineralized fossil are formed when dissolved minerals precipitate from a solution in the space occupied by the organism's remains.


Describe the four types of fossils?

Types of fossilsUsually the remains of dead plants and animals quickly decay and aredestroyed. When the remains are protected from scavengers andmicro-organisms, however, they can become fossilized.If a carcass is in water and sinks to the bottom, the body can beburied by sediment. Soft parts, such as skin, muscle, or organs decayrapidly and are rarely found as fossils. The hard parts (bones, shells,or teeth) may be altered to become fossilized remains. When waterpenetrates the bones of a dead animal, the water dissolves the calciumcarbonate in the bones. A deposit of another very hard mineral, silica(quartz) remains, turning the bones into a petrified (rock-like) substance.When an organism is buried under many layers of sediment,pressure and heat may build up, leaving a thin film of carbon residueon rock surfaces. The residue forms an outline of the organism. Theoutline is called a carbonaceous film.


What are the 5 types of fossil?

the 5 types of fossils are: 1.petrified fossil 2.carbon films 3.trace fossil 4.perserved remains 5.mold and cast


Are fossils the traces or remains of organisms that lived long ago?

Answer by Ibrahim El-OseryConfidence votes 33.1KYes, fossils are the traces and remains of organisms and plants that were buried and maintained under pressure