Science, Том 293John Michels (Journalist) American Association for the Advancement of Science, 2001 |
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Стр. 226
... isotopic composition of a molecu- lar species does not always reflect the background isotopic composition . The reason for this has long been known ( 1 , 2 ) : Equilibrium chemical processes such as isotopic exchange , diffusion ...
... isotopic composition of a molecu- lar species does not always reflect the background isotopic composition . The reason for this has long been known ( 1 , 2 ) : Equilibrium chemical processes such as isotopic exchange , diffusion ...
Стр. 282
... Isotopic composition and concentration of B in melt inclusions hosted by high - Mg olivines in basaltic andesite ( 95-15 ) from Mt. Shasta ( solid circles ) . Striped areas are B reservoirs relevant to this study ( 12 , 14 , 27 ) . The ...
... Isotopic composition and concentration of B in melt inclusions hosted by high - Mg olivines in basaltic andesite ( 95-15 ) from Mt. Shasta ( solid circles ) . Striped areas are B reservoirs relevant to this study ( 12 , 14 , 27 ) . The ...
Стр. 486
... isotopic enrichment from active methanotrophy . 4 4 Fig . 2. Scatter plots of the N. Fig . 3. lon microprobe mea- sured 813C profiles for individ- ual cell aggregates recovered from marine methane seep sediments ( Eel River Basin and ...
... isotopic enrichment from active methanotrophy . 4 4 Fig . 2. Scatter plots of the N. Fig . 3. lon microprobe mea- sured 813C profiles for individ- ual cell aggregates recovered from marine methane seep sediments ( Eel River Basin and ...
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