Replication data for: Hydrothermal activity at the ultraslow-spreading Mohns Ridge: new insights from near-seafloor magnetics

The dataset includes near-seafloor magnetic data from the Mohns Ridge (Arctic Mid-Ocean Ridge segment) used in the paper: \"Hydrothermal activity at the ultraslow-spreading Mohns Ridge: new insights from near-seafloor magnetics\" [https://doi. org/10.1029/2019GC008439]. The data were collected with the use of an autonomous underwater vehicle (AUV) during NTNU/MarMine research cruise to the Arctic Mid-Ocean Ridge in 2016. The dataset covers parts of two axial volcanic ridges (AVRs) and a segment of mid-ocean ridge valley rift flank. The study area hosts one active hydrothermal field, Loki's Castle and three extinct hydrothermal sites, Mohn's Treasure - MT-1, MT-2 and MT-3. MT-2 and MT-3 were discovered by analysing magnetic data in combination with bathymetric data from the area. Near-seafloor high-resolution magnetic data provide insights into the siting and geological context of the vent sites, and aid in the interpretation of magmatic and tectonic processes interplay along the mid-ocean ridges.

本数据集包含采自莫恩斯海岭（北冰洋中洋脊段）的近海底磁测数据，相关数据用于论文《超慢速扩张莫恩斯海岭的热液活动：来自近海底磁学的新认知》（https://doi.org/10.1029/2019GC008439）。该数据由挪威科技大学（NTNU）/MarMine研究团队于2016年北冰洋中洋脊科考航次中，通过自主水下航行器（AUV）采集获取。数据集覆盖两处轴部火山脊（AVRs）的部分区域以及一段中洋脊谷裂谷侧翼。研究区内发育1处活跃热液场——洛基城堡，以及3处已灭绝热液点：莫恩斯宝藏-MT-1、MT-2与MT-3。其中MT-2与MT-3系通过结合该区域磁测数据与水深数据分析发现。近海底高分辨率磁测数据可为热液喷口点的定位及地质背景提供研究视角，并有助于解析沿中洋脊分布的岩浆与构造过程的相互作用机制。