《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
* j! `8 c# V/ X+ O2 \3 @& U  Vcatalog number NMNH115296-3, in transmitted light (14 by 18 millimeters). Molten
( F5 @! v% \# O! |7 ]+ S6 ^1 c/ wlava erupted onto the sea floor freezes to glass and minerals that contain clues ' C  v. c1 A0 ]; q8 L5 ?
to the lava's ancient past and origin in Earth's deep interior. Volcanic glasses
  {' D/ X4 x1 O$ ~3 b& y6 Isuch as this one may reveal a link between Earth's oxidation state and the deep & }( }; X  G" e. q$ h- M; x6 M
carbon cycle. See page 1314.
$ I& ^6 o. {/ x. f( xImage: G. Macpherson, T. Gooding, and E. Cottrell ! R  M8 u# F. \, e) N0 x8 C

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