Scientists may have discovered the oldest intact earth rock – the Moon. Scientists have discovered the rock decades ago from the crew of Apollo 14.
Apollo's missions have returned many rock patterns and scientists have since analyzed them methodically. This seems to be somewhere at the end of the list, but perhaps the most interesting one ever found.
An international team of scientists associated with the Center for Lunar Science and Research (CLSE), part of the NASA Virtual System Research Institute, found evidence that the rock was fired from the Earth by a large asteroid or comet.
This effect ejects the material through the primitive atmosphere of the Earth, in space where it crashed into the outer part of the Moon (which was three times closer to Earth than it is now) about 4 billion years back. Thus, the stone was mixed with other lunar surface materials in one example.
The group has created a system for finding moon reggelite parts that led CLSE chief scientist David A. Kring, scientists at the USRA at the Institute of Lunar and Planetary University (LPI), to provoke them to find Earth on the moon.
Dr. Kring said: "This is an extraordinary discovery that helps to paint a better picture of the early Earth and the bombings that changed our planet during the dawn of life."
Perhaps the example is not the earth source but crystallized on the Moon, however, it would require conditions at other times, collected from lunar examples. This would require the example to be enveloped with enormous abundance, in the moon's mantle where completely different pieces are expected. On these lines, the least complex explanation is that the example originates from the Earth.
The rock crystallized about 20 kilometers below Earth's surface before 4.0-4.1 billion years ago. It is then excavated by one or more events with great impact and released into the space. The team's previous work has shown that the impacting asteroids at that time produced craters thousands of kilometers in diameter on Earth large enough to bring material from these depths to the surface.
Once the sample reached the lunar surface, it was affected by several other events, one of which was partly melted 3.9 billion years ago and probably buried beneath the surface. Hence, the sample is a remnant of an intense bomber period that shapes the solar system for the first billions of years. After this period, the Moon is affected by smaller and less frequent impacts.
The last event that will affect this sample happened about 26 million years ago when an asteroid struck the moon, producing the small cone crater 340 meters in diameter, and dug the specimen back to the moon's surface where the astronauts collected it exactly 48 years before (January 31 – February 6, 1971).
Kring noted: "The conclusion about the Earth's origin for the rock fragment will be controversial. While the Land of Haddan is a reasonable source for the sample, the first find of this species can be a challenge for the geological community to learn. "
"The samples of Hadan's land have surely slashed the moon's surface; other samples will probably be found with additional research. "
Dr. Catherine Robinson, a post-graduate student at the LPI, also participated in the study, as well as Dr. Marion Grange (Curtin University), Dr. Garrett Collins, Dr. Martin Whitehouse (Swedish Natural History Museum) . Dr. Vrisje Universiteit Amsterdam and Professor Mark Norman (Australian National University).