1) outer island arc ridge
外弧海岭
2) arcuate ridge
弧形海岭
4) submarine ridge
海岭
1.
The author considers that there are close relationships between the plane form of island-arcs and submarine ridges.
但其活动性在岛弧的延伸方向上及岛弧间存在明显的差异,表现在岛弧两端或岛弧与海岭的交接地段活动性较强,而中段活动性较弱。
6) ancient Jiuling island arc
九岭古岛弧
1.
With single-zircon evaporation technique, the authors determined 207Pb/ 206Pb age of Nanqiao basalt in Hunan, which is located along the westward extension of ancient Jiuling island arc in northwest Jiangxi.
对赣西北九岭古岛弧西延部分的湖南浏阳南桥玄武岩进行了单颗粒锆石蒸发法2 0 7Pb/ 2 0 6Pb年龄测定 ,结果为 12 71± 2Ma。
补充资料：海岭
海底的山脉。一般较陆地的山脉高而长，而侧较陡。也叫海脊。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条