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This is why dinosaur bones don’t disintegrate even after millions of years – Okezone techno

JAKARTA – Perhaps some of you wondered why the bones dinosaur can survive to this day. Yet, as we all know, they lived millions of years ago.

So why can this happen? To answer this question, consider the following review.

As reported by the Natural History Museum on Wednesday (12/14/2022), the preservation of dinosaur bones was made possible due to a number of circumstances and certain conditions so that the bones formed into fossils.

This was an extremely rare occurrence, as most of the dead dinosaurs decomposed completely, leaving nothing behind. And even if found, 99% comes from marine animals like clams and sharks.

This is because they live in the sea, where sand or silt can quickly bury them after they die. Once the remains are buried under the sediments, their decomposition slows down due to lack of oxygen.

With reduced oxygen, giving enough time for fossilization to occur. As for dinosaur fossils that lived on land, most of them came from animals that lived near lakes or rivers.

“Some died just before the area flooded and covered their remains in mud and mud. Others were washed into rivers by heavy rains,” said Dr. David Button, a dinosaur researcher.

David added that he and his fellow researchers had no idea what kind of dinosaurs lived in forest or mountain environments. The reason is that fossils are very unlikely to form in such situations.

The steps for the formation of dinosaur fossils are as follows:

1. The dinosaur is dead

2. The soft parts of the dinosaur’s body, including skin and muscles, began to decompose

3. Before the body is lost, it is buried by sediment, usually mud, sand or silt. Often at this point only the bones and teeth remain

4. More layers of sediment accumulate above it. This puts a lot of weight and pressure on the underlying layer, pressing it down. Eventually, they turn into sedimentary rocks.

5. When this happens, water seeps into the bones and teeth, turning them to stone while leaving behind minerals.

This process can take thousands or even millions of years. David added that water leaves mineral crystals in the spaces in the bones. This is why dinosaur fossils often have a spongy texture.

Sometimes groundwater dissolves buried bones or shells, leaving holes or bone- or shell-shaped tracks in the sediment. This is a natural print.

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