Oldest living life on Earth found in 2 billion-year old rock
Sci News reports : Researchers from the University of Tokyo and elsewhere have found pockets of living microbes in mineral-filled veins within 2-billion-year-old rock from the Bushveld Igneous Complex, South Africa. “We didn’t know if 2-billion-year-old rocks were habitable,” said Dr. Yohey Suzuki, a researcher at the University of Tokyo. “Until now, the oldest geological layer in which living microorganisms had been found was a 100-million-year-old deposit beneath the ocean floor, so this is a very exciting discovery.” Dr. Suzuki and colleagues analyzed a rock sample from the Bushveld Igneous Complex, a rocky intrusion in northeastern South Africa that formed when magma slowly cooled below the Earth’s surface. “The Bushveld Igneous Complex covers an area of approximately 66,000 km 2 (roughly the size of Ireland), varies in thickness by up to 9 km, and contains some of the richest ore deposits on Earth including about 70% of the world’s mined platinum,” they said. “Due to the way it w