国产人人色I色婷婷综合久久中文字幕雪峰I奇米色777欧美一区二区I久热久热aV爽青青在线I国产av喷水I国产伦精品一区二区三区免.费I高潮av在线Iww欧美一级I91天天看I黄a在线91I九一无码中文字幕久久无码色…I丰满国产精品视频二区

Science and Health

Huge rare earth deposits found in Pacific

(Agencies)
Updated: 2011-07-04 12:04
Large Medium Small

TOKYO - Vast deposits of rare earth minerals have been discovered on the seabed of the Pacific Ocean amounting to 1,000 times those on land, media reported on Monday citing a study by Japanese researchers.

The deposits are estimated to amount to 100 billion tonnes, the Nikkei business daily said.

They are believed to lie at a depth of 3,500 to 6,000 metres and cover an area of over 11 million square metres, the reports said.

The study by researchers from the University of Tokyo and the Japan Agency for Marine-Earth Science and Technology is to be published on Monday in the online edition of the British? science magazine Nature Geoscience, the reports said.

Demand could pick up later in the year as Japan continues to recover from the March 11 earthquake.??

分享按鈕