Acasta Gneiss, Canada: This rock formation in the Northwest Territories is the world's oldest exposed bedrock, dating back about 4 billion years.
Isua Greenstone Belt, Greenland: These ancient rocks, around 3.8 billion years old, provide insights into Earth's early history.
Narryer Gneiss Complex, Australia: Found in Western Australia, it contains some of Earth's oldest rocks, estimated at 3.6 billion years old.
Pilbara Craton, Australia: Home to rocks over 3.4 billion years old, it offers glimpses into the planet's early geological processes.
Barberton Greenstone Belt, South Africa: These rocks, around 3.3 billion years old, hold clues about early Earth's tectonics and life.
Vaalbara Supercontinent, Africa-Australia: Dating back 3.6 billion years, it's considered one of Earth's earliest continental formations.
Jack Hills, Australia: These ancient zircon crystals, over 4 billion years old, provide insights into Earth's early geology and the emergence of continents.
Warrawoona Group, Australia: Rocks here are around 3.5 billion years old and contain evidence of early life on Earth.