Table of Contents
What rocks can fossils be found in?
Most fossils “hide out” in sedimentary rock . When tiny bits of rocks and minerals (called sediment) join together over millions of years, they become sedimentary rock. Plants and animals that become sandwiched in this sediment eventually turn into fossils. Two examples of sedimentary rocks are sandstone and shale.
How old are fossils in marble?
The duo found that the local rocks, and the fossils within, are around 40 million years old.
Can we find fossils in granite or marble mines?
Answer: We can find fossils in the granite or marble mines because it is formed from sedimentary rocks which can have fossils in them during their formation.
What materials can fossils be found in?
Most fossils are found in sedimentary rocks. Fossils can also be found in metamorphic rock, or rock that has been altered by heat or pressure. Rarely are fossils found in igneous rock, which is formed when magma flows and hardens.
Why does marble sometimes contain fossils?
For example, fossilized shells and bacteria have been found in marble, which is metamorphosed limestone. The initial heat of igneous rocks would seem an impossible environment for fossil formation. But when ash from volcanic eruptions buries the surrounding area, the ash sometimes encapsulates organisms.
Does marble come from seashells?
Limestone forms when shells, sand, and mud are deposited at the bottom of oceans and lakes and over time solidify into rock. Marble forms when sedimentary limestone is heated and squeezed by natural rock-forming processes so that the grains recrystallize.
Can fossils be found in limestone?
Limestone is a sedimentary rock made almost entirely of fossils. Fossils are the remains of ancient plants and animals, like an imprint in a rock or actual bones and shells that have turned into rock. Fossils are found in sedimentary rocks and hold the clues to life on Earth long ago.
Where are most fossils found?
sedimentary rocks
Fossils are mostly found where sedimentary rocks of the right age are exposed, such as river valleys, cliffs and hillsides, and human-made exposures such as quarries and road cuttings.
Where is marble found?
Marble can be found all over the world, but the four countries where it is most prevalent are Italy, Spain, India, and China. The most prestigious famous white marble comes from Carrara, Italy.