《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
/ z, x+ P+ H' Ecatalog number NMNH115296-3, in transmitted light (14 by 18 millimeters). Molten ' h4 G, ]/ \: s! r' Y$ [
lava erupted onto the sea floor freezes to glass and minerals that contain clues
% E6 u/ O/ k) e7 A$ b9 Z' \to the lava's ancient past and origin in Earth's deep interior. Volcanic glasses
( p; X( G% S7 r/ i4 m- ~such as this one may reveal a link between Earth's oxidation state and the deep 3 ]$ A) k. p! Y
carbon cycle. See page 1314.
. v! `8 _9 y" x8 L8 O2 MImage: G. Macpherson, T. Gooding, and E. Cottrell ( S+ G- D( [1 ^. r+ u" R( E

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