Carbon isotope evidence for the stepwise oxidation of the Proterozoic environment
Carbon isotope evidence for the stepwise oxidation of the Proterozoic environment
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DOI：
10.1038/359605a0
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发表时间：
1992-10
期刊：
影响因子：
64.8
通讯作者：
D. D. Marais-D.;H. Strauss;R. Summons;J. Hayes
中科院分区：
文献类型：
--
作者：
D. D. Marais-D.;H. Strauss;R. Summons;J. Hayes
在地球历史的早期，地壳的氧化和大气中氧气的增加与沉积岩中还原碳的积累有关。沉积有机碳和碳酸盐岩碳同位素组成趋势表明，在元古代（2.5 ~ 0.54 Gyr），有机碳储集层相对于碳酸盐岩储集层规模增大。这种增加，以及随之而来的环境中氧化力的释放，主要发生在全球裂谷和造山运动时期。
The oxidation of the Earth's crust and the increase in atmospheric oxygen early in Earth history have been linked to the accumulation of reduced carbon in sedimentary rocks. Trends in the carbon isotope composition of sedimentary organic carbon and carbonate show that during the Proterozoic aeon (2.5–0.54 Gyr ago) the organic carbon reservoir grew in size, relative to the carbonate reservoir. This increase, and the concomitant release of oxidizing power in the environment, occurred mostly during episodes of global rifting and orogeny.