profishingrods.com
profishingrods.com April 26, 2019


Earth's Oldest Rock Was Actually Found On The Moon

27 January 2019, 08:29 | Dale Webster

Earth's Oldest Rock Was Actually Found On The Moon

Apollo Astronauts May Have Found the Oldest Earth Rock We Know On the Moon

The final impact event to affect this sample occurred about 26 million years ago, when an impacting asteroid hit the Moon, producing the small 340 meter-diameter Cone Crater, and excavating the sample back onto the lunar surface where astronauts collected it nearly exactly 48 years ago (January 31-February 6, 1971).

Although extremely rare, asteroid strikes hold the potential to pulverise the planet. The rock was discovered by scientists decades ago thanks to the Apollo 14 crew.

In order to find impactor parts in the lunar regolith, the group created some systems which incited CLSE Principal Investigator Dr. David A. Kring, a Universities Space Research Association (USRA) scientists at the Lunar and Planetary Institute (LPI) by provoking them to find part of the Earth on the Moon.

Chemical analysis of the fragment showed it crystallized in an environment that could be found on ancient Earth but not on the moon, said the team led by Jeremy Bellucci and Alexander Nemchin at the Swedish Museum of Natural History and Curtin University in Australia. This same impact created the Cone Crater that astronauts Alan Shepard and Edgar Mitchell explored and sampled during their moon mission almost half a decade ago.

The fragment endured further trauma on the moon's surface. He holds a B.A.in Psychology from the University of Toronto, and a Master of Science in Public Health (M.S.P.H.) from the School of Public Health, Department of Health Administration, at the University of North Carolina at Chapel Hill.




"It is possible that some of these unusual conditions could have occurred very locally and very briefly on the moon and the sample is a result of this brief deviation from normality", Professor Nemchin said. The Earth itself is around 4.5 billion years old, and the oldest rocks we've ever found are a little over half that age.

The Moon was much closer to the Earth than it is today when the rock fragment was produced and ejected from the Earth.

The findings appeared in the journal Earth and Planetary Science Letters. Impacts of this magnitude were capable of pulling out materials from deep within the Earth's surface. The simpler explanation, the researchers said, is that it came from Earth. That rock is the oldest known rock to originate from the Earth, dating back to approximately four billion years. According to one widely accepted theory, the moon - and possibly the elemental foundations that make life possible on Earth - was formed when a large planet collided with ours, sending fragments and planet bits soaring into space. Then, a massive collision between Earth and a comet or asteroid threw the rock to the Moon. It was then excavated by one or more large impact events and launched into lunar space.

Since zircon contains uranium, whose half-life is predictable, the researchers were able to date the rock to about 4 to 4.1 billion years ago.

Kring suspects the conclusion of a terrestrial origin for the rock fragment will be controversial.



Other News

Trending Now

National Football League fines LA Rams player after controversial play in NFC title game
The Rams would then deliver the knockout blow with a massive 57-yard field goal to seal the game with a final score of 26-23. He didn't say whether he agreed with the league's decision, but he wants to focus on the Super Bowl .

Google update could ‘destroy’ ad-blocking
Google's claim that these changes will improve security and performance have been met with a gimlet eye overall. Extension capabilities are restricted through a mechanism called extension manifest , now at version 2.

Toddler trapped in Spain well found dead after 13-day rescue effort
So far, the only evidence of the toddler being inside the well is a sample of hair at its entrance which matched the child's DNA. During the rescue mission, which lasted roughly two weeks, officials had not commented on the boy's chances of survival.

Private electrical system caused fire that killed 22, California says
One witness, Charlie Brown Jr. of Calistoga, said the electrical wiring leading from Zink's property had not been used in years. The state's firefighting agency said Thursday, Jan. 24, 2019, that the Tubbs Fire started next to a residence.

USA crude oil production remains level: EIA weekly report
The U.S. also threatened to impose sanctions on Venezuela's oil industry that could further hobble the country's exports. However, it has not yet taken that step, nor has it elected to cut off supply of USA oil that goes to Mexico.

Officer Accused of Fatally Shooting Cop During Russian Roulette
According to reports, Hendren headbutted the back window of the vehicle after arriving at the hospital, breaking out the window. Louis police officers, a man and a woman, were playing a kind of Russian Roulette, when one of them shot and killed the other .

Emiliano Sala missing plane: Search for Cardiff City's record signing called off
Organisers of the page, Paris-based football agency Sport Cover, hope to raise a total of 150,000 euros (£130,000). Among those joining calls for the search to continue are Barcelona forward Lionel Messi .

Trump administration preparing "national emergency" draft for border wall funds
If she can not answer that, she can not say the indictment is unrelated to Trump. "This is a virtual invasion of our country". The administration's plans acknowledge the possibility for lawsuits if they move forward with acquiring private property.

Ramos fires brace to keep Real recovery going
Madrid needed to react and react they did with Vinicius and Benzema linking time and again to create danger in the Girona area. Here, the talent is enough to get a result entering the second leg.

Philippines cathedral bombing: Huge explosions at Jolo church during Sunday Mass
Soldiers guarding a Catholic Church where two bombs exploded in Jolo city, Sulu, Philippines, 27 January 2019. This was followed by a second blast near the parking area of the church.