Science News Hubb
Advertisement
  • Home
  • Science News
  • Technology
  • Contact us
No Result
View All Result
  • Home
  • Science News
  • Technology
  • Contact us
No Result
View All Result
Science News Hubb
No Result
View All Result
Home Science News

50 years ago, researchers discovered a leak in Earth’s oceans

admin by admin
March 19, 2023
in Science News


Oceans may be shrinking — Science News, March 10, 1973

The oceans of the world may be gradually shrinking, leaking slowly away into the Earth’s mantle…. Although the oceans are constantly being slowly augmented by water carried up from Earth’s interior by volcanic activity … some process such as sea-floor spreading seems to be letting the water seep away more rapidly than it is replaced.

Update

Scientists traced the ocean’s leak to subduction zones, areas where tectonic plates collide and the heavier of the two sinks into the mantle. It’s still unclear how much water has cycled between the deep ocean and mantle through the ages. A 2019 analysis suggests that sea levels have dropped by an average of up to 130 meters over the last 230 million years, in part due to Pangea’s breakup creating new subduction zones. Meanwhile, molten rock that bubbles up from the mantle as continents drift apart may “rain” water back into the ocean, scientists reported in 2022. But since Earth’s mantle can hold more water as it cools (SN: 6/13/14), the oceans’ mass might shrink by 20 percent every billion years.



Source link

Previous Post

Protein fragments that repair skin damage could be added to cosmetics

Next Post

Context Is Key: Unlocking Tissue Complexity with Spatial Biology

Next Post

Context Is Key: Unlocking Tissue Complexity with Spatial Biology

Recommended

Some monkeys accidentally make stone flakes that resemble ancient hominid tools

March 12, 2023

Electronic wound dressing releases drugs to help injuries heal

March 25, 2023

Don't miss it

Science News

NASA’s OSIRIS-REx is poised to return bits of the asteroid Bennu to Earth

September 24, 2023
Science News

Blood donors may pass on small risk of brain bleed to recipients

September 24, 2023
Science News

SpaceX rocket launches on record-tying 17th mission

September 24, 2023
Technology

Poem: ‘Message to My Beloved Sibling’

September 24, 2023
Technology

Do Giants Exist: What Does the Evidence Say About Real-Life Giants?

September 24, 2023
Technology

Niche Interactions Lock Down Leukemia Cells

September 24, 2023

© Science News Hubb All rights reserved.

Use of these names, logos, and brands does not imply endorsement unless specified. By using this site, you agree to the Privacy Policy and Terms & Conditions.

Navigate Site

  • Home
  • Science News
  • Technology
  • Contact us

Newsletter Sign Up

No Result
View All Result
  • Home
  • Science News
  • Technology
  • Contact us

© 2022 Science News Hubb All rights reserved.