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| DOI | 10.1126/science.281.5381.1342 |
| A neoproterozoic snowball earth | |
| Hoffman P.F.; Kaufman A.J.; Halverson G.P.; Schrag D.P. | |
| 发表日期 | 1998 |
| ISSN | 0036-8075 |
| 起始页码 | 1342 |
| 结束页码 | 1346 |
| 卷号 | 281期号:5381 |
| 英文摘要 | Negative carbon isotope anomalies in carbonate rocks bracketing Neoproterozoic glacial deposits in Namibia, combined with estimates of thermal subsidence history, suggest that biological productivity in the surface ocean collapsed for millions of years. This collapse can be explained by a global glaciation (that is, a snowball Earth), which ended abruptly when subaerial volcanic outgassing raised atmospheric carbon dioxide to about 350 times the modern level. The rapid termination would have resulted in a warming of the snowball Earth to extreme greenhouse conditions. The transfer of atmospheric carbon dioxide to the ocean would result in the rapid precipitation of calcium carbonate in warm surface waters, producing the cap carbonate rocks observed globally. |
| 英文关键词 | calcium carbonate; carbon dioxide; surface water; carbonate rock; glaciation; paleoclimate; primary production; article; geology; greenhouse effect; metazoon; priority journal; rock; sea; Metazoa |
| 语种 | 英语 |
| 来源期刊 | Science
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/244036 |
| 作者单位 | Dept. of Earth and Planet. Sciences, Harvard University, Cambridge, MA 02138, United States; Department of Geology, University of Maryland, College Park, MD 20742, United States |
| 推荐引用方式 GB/T 7714 | Hoffman P.F.,Kaufman A.J.,Halverson G.P.,et al. A neoproterozoic snowball earth[J],1998,281(5381). |
| APA | Hoffman P.F.,Kaufman A.J.,Halverson G.P.,&Schrag D.P..(1998).A neoproterozoic snowball earth.Science,281(5381). |
| MLA | Hoffman P.F.,et al."A neoproterozoic snowball earth".Science 281.5381(1998). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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