Fossils, although technically they are not preserved in the earths crust; the minerals in the bones and pore spaces have been replaced by other harder minerals which take much longer to weather.
There are a number of different fossilization processes. See this link :
How are Fossils Formed?
fossils
Fossils
Fossils, although technically they are not preserved in the earths crust; the minerals in the bones and pore spaces have been replaced by other harder minerals which take much longer to weather.There are a number of different fossilization processes. See this link :How are Fossils Formed?
These small particles are known as clasts. If they are the remains of living things they may be known as bioclasts. The remains of animals are called fossils if they have hardened and become preserved.
Earth's crust would be silica. Living things would be carbon.
Organic sedimentary rock is comprised of the remains of once living organisms.
fossils
fossils
fossils
They are called fossils.
preserved remains of an animal or plant or living thing IS a fossil. dont mistake that with tar. tar is a mixture of once living things. ~your welcome
Fossils
a fossil is a preserved remain or trace of an organism that lived in the past
Fossils
Fossils, although technically they are not preserved in the earths crust; the minerals in the bones and pore spaces have been replaced by other harder minerals which take much longer to weather.There are a number of different fossilization processes. See this link :How are Fossils Formed?
Fossils, although technically they are not preserved in the earths crust; the minerals in the bones and pore spaces have been replaced by other harder minerals which take much longer to weather.There are a number of different fossilization processes. See this link :How are Fossils Formed?
Fossils, although technically they are not preserved in the earths crust; the minerals in the bones and pore spaces have been replaced by other harder minerals which take much longer to weather.There are a number of different fossilization processes. See this link :How are Fossils Formed?
These small particles are known as clasts. If they are the remains of living things they may be known as bioclasts. The remains of animals are called fossils if they have hardened and become preserved.