Fossils & Paleontology

Orbital View Of Pilbara, Australia Where Some Of Earth’s Oldest Fossils Can Be Found

By Keith Cowing
Status Report
NASA
July 12, 2024
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Orbital View Of Pilbara, Australia Where Some Of Earth’s Oldest Fossils Can Be Found
NASA ID: PIA25122 Larger image Credit: NASA/METI/AIST/Japan Space Systems, and U.S./Japan ASTER Science Team

The Pilbara in northwestern Australia exposes some of the oldest rocks on Earth, over 3.6 billion years old. The iron-rich rocks formed before the presence of atmospheric oxygen, and life itself.

Found upon these rocks are 3.45 billion-year-old fossil stromatolites, colonies of microbial cyanobacteria. The image is a composite of ASTER bands 4-2-1 displayed in RGB.

The image was acquired October 12, 2004, covers an area of 49.1 by 55.2 km, and is located at 22.8 degrees south, 117.6 degrees east.

Astrobiology

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