Role of Hydrology in the Formation of Co‐rich Mn Crusts from the Equatorial N Pacific, Equatorial S Indian Ocean and the NE Atlantic Ocean
Role of Hydrology in the Formation of Co‐rich Mn Crusts from the Equatorial N Pacific, Equatorial S Indian Ocean and the NE Atlantic Ocean
复制标题
水文在赤道北太平洋、赤道南印度洋和东北大西洋富钴锰结壳形成中的作用
DOI：
10.1111/j.1751-3928.2010.00123.x
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发表时间：
2010
期刊：
影响因子：
1.4
通讯作者：
X. Ren
中科院分区：
文献类型：
--
作者：
G. Glasby;B. Mountain;T. C. Vineesh;V. Banakar;R. Rajani;X. Ren
对来自世界海洋四个不同地点的富钴锰结壳进行了研究，以了解环境海水中溶解氧在富钴锰结壳形成中的作用。对赤道北太平洋、赤道南印度洋和东北大西洋现代海水的WOCE（世界海洋环流实验）氧剖面进行了评价，以确定1500 - 3200米深度富钴锰结壳的存在情况。 这些深度的氧含量从1090 -240 µmol/kg不等。 最低含氧量区（OMZ）位于这些区域800-900米的深度范围内，氧含量在100 - 100 µmol/kg之间。 海山形成的洋壳年龄在80.3-180 Ma之间。 海洋中海水含氧量随深度的分布图被证明在确定富钴锰结壳形成的最佳条件方面极为有用。强烈建议使用WOCE氧剖面图来研究海洋的地球化学过程。
Co‐rich Mn crusts from four different locations of the world ocean have been studied to understand the role of dissolved oxygen of the ambient seawater in the formation of Co‐rich Mn crusts. WOCE (World Ocean Circulation Experiment) oxygen profiles of modern seawater in the Equatorial North Pacific Ocean, Equatorial South Indian Ocean and the North East Atlantic Ocean have been evaluated with respect to the occurrence of Co‐rich Mn crusts at depths ranging from 1500 to 3200 m. The oxygen content at these depths varied from ∼90–240 µmol/kg. The oxygen minimum zone (OMZ), with oxygen contents in the range ∼45–100 µmol/kg, is located in the depth range 800–900 m in these regions. The age of the ocean crust on which seamounts formed is in the range 80.3–180 Ma. Profiles of the oxygen contents of seawater with depth in the oceans are shown to be extremely useful in establishing the optimum conditions for the formation of Co‐rich Mn crusts. The use of WOCE oxygen profiles to study geochemical processes in the oceans is highly recommended.