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DOI | 10.1038/s41561-019-0332-8 |
Climate control on banded iron formations linked to orbital eccentricity | |
Lantink, Margriet L.1; Davies, Joshua H. F. L.2,3; Mason, Paul R. D.1; Schaltegger, Urs2; Hilgen, Frederikj1 | |
2019-05-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2019 |
卷号 | 12期号:5页码:369-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Netherlands; Switzerland; Canada |
英文摘要 | Astronomical forcing associated with Earth's orbital and inclination parameters (Milankovitch forcing) exerts a major control on climate as recorded in the sedimentary rock record, but its influence in deep time is largely unknown. Banded iron formations, iron-rich marine sediments older than 1.8 billion years, offer unique insight into the early Earth's environment. Their origin and distinctive layering have been explained by various mechanisms, including hydrothermal plume activity, the redox evolution of the oceans, microbial and diagenetic processes, sea-level fluctuations, and seasonal or tidal forcing. However, their potential link to past climate oscillations remains unexplored. Here we use cyclostratigraphic analysis combined with high-precision uranium-lead dating to investigate the potential influence of Milankovitch forcing on their deposition. Field exposures of the 2.48-billion-year-old Kuruman Banded Iron Formation reveal a well-defined hierarchical cycle pattern in the weathering profile that is laterally continuous over at least 250 km. The isotopic ages constrain the sedimentation rate at 10 m Myr(-1) and link the observed cycles to known eccentricity oscillations with periods of 405 thousand and about 1.4 to 1.6 million years. We conclude that long-period, Milankovitch-forced climate cycles exerted a primary control on large-scale compositional variations in banded iron formations. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000467814100013 |
WOS关键词 | DALES-GORGE-MEMBER ; HAMERSLEY-GROUP ; SEDIMENTOLOGICAL EVIDENCE ; TRANSVAAL SUPERGROUP ; ZIRCON AGES ; DEPOSITION ; PB ; GEOCHEMISTRY ; CALIBRATION ; CYCLES |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/183091 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Univ Utrecht, Dept Earth Sci, Utrecht, Netherlands; 2.Univ Geneva, Dept Earth Sci, Geneva, Switzerland; 3.Univ Quebec Montreal, Dept Sci Terre & Atmosphere, Montreal, PQ, Canada |
推荐引用方式 GB/T 7714 | Lantink, Margriet L.,Davies, Joshua H. F. L.,Mason, Paul R. D.,et al. Climate control on banded iron formations linked to orbital eccentricity[J]. NATURE GEOSCIENCE,2019,12(5):369-+. |
APA | Lantink, Margriet L.,Davies, Joshua H. F. L.,Mason, Paul R. D.,Schaltegger, Urs,&Hilgen, Frederikj.(2019).Climate control on banded iron formations linked to orbital eccentricity.NATURE GEOSCIENCE,12(5),369-+. |
MLA | Lantink, Margriet L.,et al."Climate control on banded iron formations linked to orbital eccentricity".NATURE GEOSCIENCE 12.5(2019):369-+. |
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