HomeSpace & AstronomyEarth's crust grows faster as Earth crosses the Milky Way's spiral...

Earth’s crust grows faster as Earth crosses the Milky Way’s spiral arms

The earth orbits around the sun, and the sun also orbits around the core of the galaxy with the planets, including earth.

As Earth crosses the Milky Way’s spiral arms, more energetic comets will hit Earth and cause the crust to grow faster, a new study suggests.

We usually think of Earth’s internal processes as causing changes to the planet, but scientists say we can think on a larger scale and see how Earth’s different positions as it travels through the Milky Way affect Earth itself.

The team of geologist Chris Kirkland of Curtin University in Australia examined the zircon crystals of the two oldest continents on Earth: the North American Craton and the Pilbara Craton, and measured the decay of uranium in the crystals to establish a craton formation timetable, with a time span of about From 2.8 to 3.8 billion years ago, reanalysis of hafnium isotopes to determine the time of magma influx associated with crustal formation revealed a pattern of crustal thickening corresponding to a galactic year over a long period of time.

More specifically, the researchers found that the rate of crustal production is related to the repeated movement of the solar system in and out of the spiral arms of the Milky Way.

The sun orbits the galactic center at about 240 km/s, while the galactic arms rotate at about 210 km/s, and models suggest that the solar system enters the galactic arms about every 200 million years,

At this time, the icy star in the Oort cloud will interact with the dense gas cloud in the spiral arm, pushing the icy comet into the inner solar system and increasing the probability of hitting the earth.

The team hopes the discovery will further explain how forces outside the solar system shape Earth,

While proving these things is very difficult, studying geological processes beyond Earth and our solar system, and the factors that might drive them, may give us solace in more than just being in isolation.

SOURCESpace.com
Mehmet S. Kaya
Mehmet S. Kayahttps://teknonel.com
Mehmet is one of the administrator of Teknonel. As a software developer, he loves to share his knowledge in related topics. He is highly familiar with the editorial process from the inception of an article idea, through the iterative process, publishing, and performance analysis as well as product reviews.

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Best Deals Today

Follow us on Social Media!

12FansLike
15,848FollowersFollow
13FollowersFollow
656SubscribersSubscribe

Related Articles

Explore More Articles

Semiconductor Industry Governments and Tech Giants are in a race-min

Semiconductor Industry: Governments and Tech Giants are in a race

0
Semiconductors have sparked wars between global giants, and are also the focus of governments of various countries. Due to the difficulty and expensiveness of...
Intel's and NVIDIA's Perspective on Moore's Law-min

Intel’s and NVIDIA’s Perspective on Moore’s Law

0
The golden rule of the semiconductor industry, Moore's law, has always led the development of semiconductor chips. With the slowdown in process technology upgrades,...
humans create chemistry changer oxidative fields-min

Scientists discovered that humans create chemistry changer ‘oxidative fields’

0
There are all kinds of pollutants in the air around us. Outdoors, these pollutants can be washed away by rainfall and oxidation reactions that...
There might be more water in Earth's Mantle than on Surface main-min

There might be more water in Earth’s Mantle than on Surface

0
The deepest known trench on Earth is about 11 kilometers below sea level, however analysis of a diamond coming from the Earth's ultradeep areas...