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Jan 1, 03 / Jan 1, 19 22:38 UTC
The oldest rock on Earth ... hid in the Moon?


An international team of researchers associated with the NASA Center for Science and Lunar Exploration (CLSE) analyzed geological samples brought from the Moon by astronauts from the Apollo 14 mission in 1971 and concluded that they contain a small fragment of terrestrial rock.


The corresponding article was published in the March issue of the specialized magazine Earth and Planetary Science Letters.


According to the scientists, the rock was thrown into the Earth satellite by a large asteroid or comet and hit the surface of the Moon about 4 billion years ago, something that makes it the oldest test that exists. Then, it mixed with other elements of the moon rock.
The sample, of two grams of mass, contains quartz, feldspar and zirconium - minerals very common in the Earth -, and had been formed in a very oxidizing environment, similar to the terrestrial one, to about 20 kilometers under the surface.


"It's an extraordinary discovery that helps us get a better picture of the primitive land and the bombing that modified our planet during the beginning of life," said one of the study's co-ordinators, David King, of the Lunar and Planetary Institute of Houston. , it's a statement.