《科学》[Science]13年6月14日出版pdf全文

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COVER Polished thin section (70 micrometers) of volcanic glass, sample ( @; F& [0 q% O; T: W% e  I7 z
catalog number NMNH115296-3, in transmitted light (14 by 18 millimeters). Molten
, Q4 f  Q6 j; E: Mlava erupted onto the sea floor freezes to glass and minerals that contain clues
2 M1 b5 l. U4 D0 _& n4 _' t. Zto the lava's ancient past and origin in Earth's deep interior. Volcanic glasses
3 V4 i: q, G( bsuch as this one may reveal a link between Earth's oxidation state and the deep ! _8 _1 e  E: W& H" o$ v
carbon cycle. See page 1314.
, Y  P; Q* j8 u: @Image: G. Macpherson, T. Gooding, and E. Cottrell # k5 o- D7 Z# D4 b9 `! A

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