北黄海浅表层沉积物微量元素的分布及其早期成岩作用探讨

邹建军; 石学法; 李双林

北黄海浅表层沉积物微量元素的分布及其早期成岩作用探讨

1 中国科学院海洋研究所, 青岛 266071;
2 海洋沉积与环境地质国家海洋局重点实验室, 国家海洋局第一海洋研究所, 青岛 266061;
3 中国科学院研究生院, 北京 100039;
4 青岛海洋地质研究, 青岛 266071

基金项目:

国土资源大调查项目(GZH200200102)

详细信息

作者简介:
邹建军(1979-),男,博士生,从事海洋地球化学研究,E-mail:zoujianjun@fio.org.cn

中图分类号: P736.4
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出版历程
- 收稿日期: 2006-11-20
- 修回日期: 2007-05-20

DISTRIBUTIONS OF MINOR ELEMENTS IN NEAR SURFACE SEDIMENTS IN NORTH YELLOW SEA AND THE EARLY DIAGENESIS

1 Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;
2 Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;
3 Graduate School, Chinese Academy of Sciences, Beijing 100039, China;
4 Qingdao Institute of Marine Geology, Qingdao 266071, China

摘要

摘要: 探讨北黄海早期成岩过程中微量元素的分布特征及其对古环境判别指标的影响,结果显示,沉积物中微量元素分布主要受陆源碎屑控制,而早期成岩过程对这种受源岩控制的微量元素分布特征影响不大。早期成岩作用对Mn、Ni、V、Zn影响剧烈。U/Th、V/Cr比值表明古底层水环境为氧化环境,V/(V+Ni)比值揭示底层水为厌氧环境,这与V、Ni受早期成岩作用影响较大有关,其不能真实地记录古底层水的氧化还原环境。
- 成岩作用 /
- 微量元素 /
- 古环境 /
- 北黄海
Abstract: We discussed the distributions of minor elements in near surface sediments of the North Yellow Sea and the influence of early diagenesis on paleoenvironment proxies. The results showed that minor elements mainly came from debris. The distributions of Mn, Ni, V and Zn were also controlled by early diagenesis. Geochemical ratios, including U/Th, V/Cr and V/(V+Ni), also indicate paleoenvironment conditions for sediment. Based on previously established thresholds, U/Th and V/Cr ratios showed oxic conditions during sediment accumulation in the area. V/(V+Ni) ratios tended to indicate anoxic conditions. This may have something to do with great early diagenesis influence on V and Ni.
- early diagenesis /
- minor elements /
- paleoenvironment /
- North Yellow Sea

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参考文献(21)

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