Hydrothermal Chimney Distribution on the Endeavour Segment, Juan de Fuca Ridge
Hydrothermal Chimney Distribution on the Endeavour Segment, Juan de Fuca Ridge
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DOI：
10.1029/2020gc008917
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发表时间：
2020-06-01
影响因子：
3.5
通讯作者：
Kelley, Deborah S.
中科院分区：
文献类型：
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作者：
Clague, David A.;Martin, Julie F.;Kelley, Deborah S.
胡安德富卡山脉的奋进段以其丰富的热液喷口和烟囱而闻名。一台自动潜航器收集的一米尺度多波束测绘数据显示，沿该段中央14公里有572个烟囱，尽管只有47个烟囱被命名并已知处于活动状态。热液矿床局限于轴向地块和地块近缘的地块，位于地震测绘的轴向岩浆透镜之上。在过去的4300年里，这一地段的稀少喷发活动并没有掩埋不活跃的烟囱，就像在更神奇的大洋中脊发生的那样。
The Endeavour Segment of the Juan de Fuca Ridge is well known for its abundance of hydrothermal vents and chimneys. One-meter scale multibeam mapping data collected by an autonomous undersea vehicle revealed 572 chimneys along the central 14 km of the segment, although only 47 are named and known to be active. Hydrothermal deposits are restricted to the axial graben and the near-rims of the graben above a seismically mapped axial magma lens. The sparse eruptive activity on the segment during the last 4,300 years has not buried inactive chimneys, as occurs at more magmatically robust mid-ocean ridges.