4.6-Billion-Year-Old Meteorite Found In The Sahara Desert Is Older Than Earth Itself

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The EC 002 meteorite is the oldest-known volcanic rock ever found (Credit: Maine Mineral and Gem Museum/Darryl Pitt)

An ancient volcanic space rock found in the Algerian Sahara Desert, may provide scientists with insights into the building blocks of planets. Dubbed Erg Chech 002, or EC 002, the meteorite is believed to be a remnant of a protoplanet dating back 4.6 billion years — about the time when our solar system was being formed.

The coarse-grained brown space rock, which is studded with green, yellow-green, and yellow-brown crystals, was found by meteor hunters in Adrar, Algeria, in May 2020. Unlike previously found meteorites, which comprise a kind of volcanic rock called basalt, Erg Chech 002 is composed of andesite. Though common in the Earth's subduction zones — the areas where tectonic plates have collided and one has been pushed beneath the other — andesite has rarely been seen in meteorites.

“I have been working on meteorites for more than 20 years now, and this is possibly the most fantastic new meteorite I have ever seen,” says Jean-Alix Barrat, a geochemist at the University of West Brittany, who led the study.

The coarse-grained meteorite is studded with green, yellow-green, and yellow-brown crystals (Credit: Maine Mineral and Gem Museum/Darryl Pitt)

The researchers, who published their findings in the journal PNAS on March 16, 2021, believe the fragment was probably part of the crust of an ancient protoplanet — a large, rocky body in the process of developing into a planet. They speculate that the baby planet got destroyed, or was devoured, by a bigger planet during our solar system's formation. "This meteorite is the oldest magmatic rock analyzed to date and sheds light on the formation of the primordial crusts that covered the oldest protoplanets," Barrat and his team reported.

Since no known asteroid resembles EC 002, the researchers suspect that no other remnants are left from these early times. They either fused to form other planets or were destroyed. “When you go close to the beginning of the solar system, it’s more and more complicated to get samples,” says Barrat. “We probably will not find another sample older than this one.”

Resources: Newscientist.com, livescience.com, phys.com

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173 Comments
  • ottyninja101
    ottyninja101Tuesday, April 13, 2021 at 2:39 pm
    i wonder if there's more that are way way older then this one
    • monosix6
      monosix6Tuesday, April 13, 2021 at 10:52 am
      This meteor could be revolutionary in the science industry!!!
      • ladybugsteph
        ladybugstephTuesday, April 13, 2021 at 10:20 am
        this is soo cool i never thought this could've posibel
        • manylovesdogs28
          manylovesdogs28Tuesday, April 13, 2021 at 8:45 am
          this is pretty interesting if you ask me?
          • nightcolony442
            nightcolony442Tuesday, April 13, 2021 at 8:33 am
            This is soo cool. I love space and geology and this is soo cool.
            • savannahs64
              savannahs64Tuesday, April 13, 2021 at 6:51 am
              Ok this is amazing
              • nightcolony442
                nightcolony442Tuesday, April 13, 2021 at 8:33 am
                I know, right?
              • jaxon543
                jaxon543Tuesday, April 13, 2021 at 5:30 am
                wow that rock is old school
                • super_frogbob
                  super_frogbobMonday, April 12, 2021 at 5:23 pm
                  So neat! I love this article!
                  • pandapal
                    pandapalMonday, April 12, 2021 at 5:00 pm
                    WOW! I didn't know that it was possible to find such old things until now! :) So cool!
                    • surferdash1234
                      surferdash1234Monday, April 12, 2021 at 3:38 pm
                      this is really cool i like it so much