In 1999, the oldest known rock on Earth was dated to 4.031 ±0.003 billion years, and is part of the Acasta Gneiss of the Slave craton in northwestern Canada.
What is the oldest known minerals on Earth?
Zircons, the oldest minerals on Earth, preserve robust records of chemical and isotopic characteristics of the rocks in which they form.
What is the second oldest rock?
“Thus, the Singhbhum rock from where the zicron was recovered is the second oldest and its zircon, the oldest magmatic zircon on earth,” Dr. Mazumder said.
Where is the oldest exposed rock on Earth?
Bedrock along the northeast coast of Hudson Bay, Canada, has the oldest rock on Earth. Canadian bedrock more than 4 billion years old may be the oldest known section of the Earth’s early crust.