文章基本信息

标题：Contribution of heat outputs from high- and low-temperature hydrothermal sources to the neutrally buoyant plume at the TAG hydrothermal mound, Mid-Atlantic Ridge
其他标题：Contribution of heat outputs from high- and low-temperature hydrothermal sources to the neutrally buoyant plume at the TAG hydrothermal mound, Mid-Atlantic Ridge
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作者：Shusaku Goto ; Toshitaka Gamo ; Hitoshi Chiba 等
期刊名称：Earth, Planets and Space
电子版ISSN：1880-5981
出版年度：2007
卷号：59
期号：10
页码：1141-1146
DOI：10.1186/BF03352057
出版社：Springer Verlag
摘要：We provide an estimation of the heat output necessary to generate the neutrally buoyant plume above the TAG hydrothermal mound, Mid-Atlantic Ridge, located at 26°N, using a model of plume rise in a density-stratified environment with crossflow. The estimated heat output is 460 ± 40 MW. Previous studies have estimated that the heat outputs from high-temperature hydrothermal discharge and low-temperature diffuse flow at the TAG hydrothermal mound are 90 ± 20 MW and at least 780 MW, respectively. Consequently, the contribution of diffuse flow to make the neutrally buoyant plume is 370 ± 60 MW, which accounts for approximately 80% of the heat output to the neutrally buoyant plume. As this contribution is less than 50% of the total heat output from the diffuse flow, it is likely that more than 50% of the heat output from the diffuse flow dissipates in the ambient current.
关键词：Heat output ;neutrally buoyant plume ;high-temperature hydrothermal discharge ;low-temperature diffuse flow ;TAG hydrothermal mound