Rocks older than this have not been found
The Earth is about 4.5 billion years old, but rocks older than 3.8 billion years are rare because the Earth's early surface was constantly changing due to volcanic activity, plate tectonics, and erosion. These geological processes have mostly destroyed or recycled the older rocks over time. That's why the rock record typically only extends back to around 3.8 billion years.
The oldest rock on Earth was found on the eastern shore of Hudson Bay, Canada. It dates as far back as 4.28 billion years, older than the previous 4.02 billion years, also in Canada.
a metamorphic rock
Only in that igneous rock was the first to form on Earth, over 4 billion years ago.
The lunar rocks brought back by the Apollo missions were estimated to be around 3.9 billion years old. These rock samples provided valuable insights into the early formation and history of the moon.
Rocks from the moon have been dated to about 4.5 billion years old. The oldest earth rocks don't date that far back because the earth "reprocesses" rock, and the oldest rocks we know of on earth date back to about 3.7 to 3.8 billion years. The earth and moon formed at approximately the same time, as did the rest of the solar system.
That would be the first billion years, as the Earth was a ball of molten rock- which then underwent multiple meteoric impacts.
Maine
yes, it does actually because, radiometric dating determines the half life of the uranium in the rock. They can tell how old the uranium is because, all forms of uranium starts with 4.6 billion years of life. Meaning if the half life is 2.3 billion years that means the rock is about 2.3 billion years old
The oldest rock in the world, dating back about 4 billion years, was found in Western Australia. It is part of the Jack Hills region.
yup about 4.6 billion years old
Enchanted Rock is estimated to be around one billion years old. It formed underground as a large blob of molten magma that solidified and was later exposed through erosion.