地球内部发现新大洋?

#科技头条#【地球内部发现新大洋?】来自佛罗里达州立大学、爱丁堡大学和西北大学的学者新近发现在地表以下约1000km的位置储藏着大量地下水,储量超过地表四大洋之和。这部分水源是地表一系列地质活动重要源泉之一,如果没有它的存在,地球上的生命将会纷纷死去。

Water covers around 70 per cent of the Earth's surface, but a huge amount also lies inside our planet.

Two new studies suggest that there may be vast quantities of water as far as 620 miles (1,000 kilometres) below the surface.

Without this huge store of water, the geodynamic activity that causes volcanoes - which are important for generating soil and sustaining life on the planet - would cease.

In the first study, researchers from Florida State University and the University of Edinburgh estimated that water exists far deeper in the Earth than previously thought, stored in a mineral called brucite.

Although the amount of water is unknown, researchers believe it could account for as much as 1.5 per cent of the weight of the planet - the same amount of water as all the world's oceans put together.

Mainak Mookherjee, who led the study, said: 'We didn't think water could be stored by hydrous minerals such as brucite at these depths.

'But now that we know it's there, we need to figure out how much water could be effectively stored inside it.'

3AA6F07200000578-3960442-image-a-30_1479815292424

In a parallel study, researchers from Northwestern University in Illinois suggest that this water is much deeper than any seen before, at a third of the way to the edge of Earth's core.

The researchers discovered a diamond, spat out 90 million years ago by a volcano near the São Luíz river in Juina, Brazil.

The diamond had an imperfection, containing minerals that became trapped during the diamond's formation.

When the researchers looked at it under the microscope, they saw evidence of the presence of hydroxyl ions - which normally come from water.

 http://www.dailymail.co.uk/sciencetech/article-3960442/An-ocean-water-620-miles-Earth-s-surface-dries-life-planet-END.html

Comments are closed.



无觅相关文章插件