earth upper mantle

基本解釋

These levels are comparable to the 500 to 1000 parts per million of water in the Earth's upper mantle.
這一水分含量堪比地球的上層地幔500到1000ppm的水含量。
The ore-forming material and fluid was derived from the depth of the Earth especially from upper mantle or crust-mantle mixing zone , due to alkali-rich magma activity during late Yanshanian epoch.
成礦流體和主要礦質(zhì)均源于地球深部，以上地幔或殼?；旌蠋橹?，與燕山晚期富堿巖漿活動(dòng)密切相關(guān)。
Serpentinite is a dark green mineral used in decoration and jewelry. In nature, it is formed when sea water infiltrates into Earth's upper mantle, at depths that can reach 200 km in subduction zones.
蛇紋石是一種用來珠寶裝飾的深綠色礦物，它形成于俯沖帶，當(dāng)海水滲入到地球上地幔的環(huán)境中，形成深度可達(dá)200km。

The rock is peridotite, which is one of the main rocks in the upper mantle, an area that provides a girth below the Earth's crust.
ECONOMIST: Greenhouse gases