Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091508 |
Mercury evidence of intense volcanism preceded Oceanic Anoxic Event 1d | |
Hanwei Yao; Xi Chen; Runsheng Yin; Stephen E. Grasby; Helmut Weissert; Xue Gu; Chengshan Wang | |
2021-02-19 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Geochemical studies of marine sediments indicate that most Oceanic Anoxic Events (OAEs) appear coincident with Large Igneous Province (LIP) volcanism. OAE 1d records peculiar palaeoceanographic changes and global carbon cycle perturbations, however, its association with volcanism has not yet been supported by robust geochemical evidence. To examine the potential role of volcanism we investigated the mercury (Hg) concentration and isotopic record of OAE 1d interval at the Youxia section, southern Tibet. The interval prior to OAE 1d is marked by a combined positive Δ199Hg and Hg content shift, which suggests a volcanic Hg source. These findings are consistence with a prominent increase in sea surface temperatures and atmospheric CO2 before OAE 1d. We suggest that eruption of the central portion of the Kerguelen LIP may have been the main source of the Hg anomaly and resulted in global environment perturbations that drove the onset of the anoxia event. |
领域 | 气候变化 |
URL | 查看原文 |
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/315602 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Hanwei Yao,Xi Chen,Runsheng Yin,et al. Mercury evidence of intense volcanism preceded Oceanic Anoxic Event 1d[J]. Geophysical Research Letters,2021. |
APA | Hanwei Yao.,Xi Chen.,Runsheng Yin.,Stephen E. Grasby.,Helmut Weissert.,...&Chengshan Wang.(2021).Mercury evidence of intense volcanism preceded Oceanic Anoxic Event 1d.Geophysical Research Letters. |
MLA | Hanwei Yao,et al."Mercury evidence of intense volcanism preceded Oceanic Anoxic Event 1d".Geophysical Research Letters (2021). |
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