《科学》[Science]13年6月14日出版pdf全文

nero1981

% l3 J( A, R5 v. @3 [; m% bCOVER Polished thin section (70 micrometers) of volcanic glass, sample
& ^. J# q4 q, y+ W/ q0 ^# Icatalog number NMNH115296-3, in transmitted light (14 by 18 millimeters). Molten
' j6 ~- F# [, V# U8 B; h9 dlava erupted onto the sea floor freezes to glass and minerals that contain clues ( ]8 `; }; D5 R9 O& J; ]. K
to the lava's ancient past and origin in Earth's deep interior. Volcanic glasses
, }; F7 N) }! w+ I/ u- ysuch as this one may reveal a link between Earth's oxidation state and the deep
( ^1 n3 I7 R4 S& i4 Ycarbon cycle. See page 1314.
  ?4 v& z  {5 e$ y6 l% }: S; w  JImage: G. Macpherson, T. Gooding, and E. Cottrell
5 I9 Y% p8 q7 H% t) j  O6 w7 `

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