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| DOI | 10.1146/annurev-earth-082517-010305 |
| Seawater chemistry through phanerozoic time | |
| Turchyn A.V.; Depaolo D.J. | |
| 发表日期 | 2019 |
| ISSN | 0084-6597 |
| 起始页码 | 197 |
| 结束页码 | 224 |
| 卷号 | 47 |
| 英文摘要 | The major ion balance of the ocean, particularly the concentrations of magnesium (Mg), calcium (Ca), and sulfate (SO4), has evolved over the Phanerozoic (last 550 million years) in concert with changes in sea level and the partial pressure of carbon dioxide (pCO2). We review these changes, along with changes in Mg/Ca and strontium/calcium (Sr/Ca) of the ocean; how the changes were reconstructed; and the implication of the suggested changes for the overall charge balance of the ocean. We conclude that marine Mg, Ca, and SO4 concentrations are responding to different aspects of coupled tectonic changes over the Phanerozoic and the resulting effect on sea level. We suggest a broad conceptual model for the Phanerozoic changes in Mg, Ca, and SO4 concentrations along with the seawater 87 Sr/ 86 Sr and sulfur isotope composition. ▪ Marine concentrations of magnesium, sulfate, and calcium have varied over the last 550 million years in sync with changes in sea level and atmospheric carbon dioxide. ▪ Seawater chemistry and sea level both respond to supercontinent formation and breakup, age of the ocean floor, and extent of continental shelf area. ▪ Changes in plate tectonics impact the ocean's chemical balance and the carbon cycle in varied ways, resulting in cyclical changes in key climatic variables over geological time. © 2019 by Annual Reviews. All rights reserved. |
| 关键词 | Atmospheric chemistryCarbon dioxideMagnesium compoundsSea levelSeawaterSulfur compoundsTectonicsAtmospheric carbon dioxideCarbon cyclesChemical balanceClimatic variablesContinental shelvesPhanerozoicSeawater chemistrySupercontinentsCalcium compoundscalciumcarbon cyclecarbon dioxidecontinental shelfpaleoceanographyPhanerozoicseawatersulfatesupercontinentwater chemistry |
| 语种 | 英语 |
| 来源机构 | Annual Review of Earth and Planetary Sciences |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/131923 |
| 推荐引用方式 GB/T 7714 | Turchyn A.V.,Depaolo D.J.. Seawater chemistry through phanerozoic time[J]. Annual Review of Earth and Planetary Sciences,2019,47. |
| APA | Turchyn A.V.,&Depaolo D.J..(2019).Seawater chemistry through phanerozoic time.,47. |
| MLA | Turchyn A.V.,et al."Seawater chemistry through phanerozoic time".47(2019). |
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