《科学》[Science]13年6月14日出版pdf全文

nero1981

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COVER Polished thin section (70 micrometers) of volcanic glass, sample
& w& ^2 {  M% l1 m3 r. p$ rcatalog number NMNH115296-3, in transmitted light (14 by 18 millimeters). Molten
4 H. u1 w8 Q$ C+ W3 ^( clava erupted onto the sea floor freezes to glass and minerals that contain clues
8 ^3 ]- L% \/ a9 A4 T0 A6 fto the lava's ancient past and origin in Earth's deep interior. Volcanic glasses
. P5 z: _% f, e  q- Dsuch as this one may reveal a link between Earth's oxidation state and the deep # u/ t6 u% x6 m7 |
carbon cycle. See page 1314. " c: h- X. q5 G- E
Image: G. Macpherson, T. Gooding, and E. Cottrell
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