The premise is incorrect. Some rocks on Earth are billions of years old.
No, Iceland is a young country, the oldest rocks there are only 20-30 million years old and since the dinosaurs became extinct about 65 million years ago, there is no possibility of any in Iceland.
It takes a long time for sedimentary rocks because the rocks have to break down in small pieces. The rocks are from the surfaces or the crust.
The beach is a result of millions of years of erosion by the sea. Millions of years ago rocks were in the place of the sand, but the ocean over time broke away little pieces. Eventually all the rocks were gone, and sand stayed in their place. This is why beaches/shores only occur near water.
No, it is unlikely that these 3.5 billion-year-old rocks were present at Earth's formation. The Earth is about 4.5 billion years old, and the oldest rocks represent only a fraction of that history. Initially, the Earth was molten, and solid crust formation took place later as the planet cooled. Therefore, the rocks we find today are remnants of processes that occurred after the planet's initial formation.
It takes a while for sedimentary rocks to form because it has to be broken into smaller pieces. It can be formed at the surface of the rock or the crust of the rock.
Although some say it takes millions, maybe billions of years, it doesn't actually take that long. From my research, I have come to the conclusion that it only takes thousands of years not millions or billions
The oldest continental crust is significantly older than the oldest oceanic crust. The oldest continental rocks, found in regions like Canada and Australia, are over 4 billion years old. In contrast, the oldest oceanic crust, located at the bottom of the Atlantic Ocean, is only about 200 million years old, as it is continuously created and destroyed through the process of plate tectonics. This stark difference highlights the stability and longevity of continental crust compared to the dynamic nature of oceanic crust.
Rocks from the early Precambrian era have likely been destroyed due to the constant geological processes such as heat, pressure, and erosion over billions of years. The Earth's surface has undergone significant changes since that time, making it rare for such ancient rocks to be preserved and accessible for study.
Rocks can be found almost anywhere, sandstone can be found in beaches, granite is mostly found in New York city. I hear there might be some igneous rocks in central park.
In 1990, after 20 years of searching, geologists found the oldest oceanic rocks by drilling into the seafloor of the western Pacific. These rocks turned out to be about 200 million years old, only about 4% of the Earth's age.
it only lives three to four years.
Rocks in the ocean can be as old as the Earth's crust, which is around 4 billion years old. Some of the oldest oceanic rocks are found at mid-ocean ridges and are formed through volcanic activity. However, most of the ocean floor is significantly younger due to the continuous process of seafloor spreading and plate tectonics, with some areas being only a few million years old.