HYDROTHERMAL MANGANESE PLUMES IN THE MID-ATLANTIC RIDGE RIFT-VALLEY
HYDROTHERMAL MANGANESE PLUMES IN THE MID-ATLANTIC RIDGE RIFT-VALLEY
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DOI：
10.1038/314727a0
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发表时间：
1985-01-01
期刊：
影响因子：
64.8
通讯作者：
ELDERFIELD, H
中科院分区：
文献类型：
--
作者：
KLINKHAMMER, G;RONA, P;ELDERFIELD, H
海水中溶解锰的浓度可用作海底热液活动的化学示踪剂。在这里，我们展示了大西洋中脊（MAR）裂谷上方海水锰浓度的垂直剖面。获得的值表明存在目前由裂谷热液喷口产生的活跃羽流。这些羽流仅限于裂谷，不会溢出到邻近的深海盆地。它们之间的差异表明，在这段 1,700 公里长的洋中脊上至少有五个热液源。
The concentration of dissolved manganese in sea water can be used as a chemical tracer of hydrothermal activity on the underlying sea floor. Here we present vertical profiles of seawater manganese concentrations above the rift valley of the Mid-Atlantic Ridge (MAR). The values obtained indicate the presence of plumes that are presently active generated by hydrothermal vents in the rift valley. These plumes are confined to the rift valley and do not spill over into the adjacent deep ocean basins. Differences between them suggest that there are at least five hydrothermal sources along this 1,700-km-long section of mid-ocean ridge.