Processed Gravity Mantle Bouguer Anomaly data, Reykjanes Ridge, Langseth cruise MGL1309 (2013, investigators Fernando Martinez and Richard Hey)

Processed gravity mantle Bouguer anomaly (MBA) image data derived from forward-modelled bathymetry data assuming a 6-km-thick crust and density contrast of 1670 kg/m3 at the seafloor and 600 kg/m3 at the Moho. The forward-calculated gravity values were subtracted from the free-air gravity anomaly data to yield the MBA. The gravity survey was conducted at the southern end of the Reykjanes Ridge, a segment of the Mid-Atlantic Ridge, in 2013 during Langseth cruise MGL1309 (investigators Fernando Martinez and Richard Hey). The data file is in PDF format and was generated as part of the project called Test Between Thermal and Tectonic Hypotheses for North Atlantic Seafloor Spreading Geometry Reorganization. Funding was provided by NSF award OCE11-54071.经处理的重力地幔布格异常（mantle Bouguer anomaly, MBA）图像数据，基于正演模拟的水深数据生成，预设地壳厚度为6千米，海底处密度差为1670 kg/m³，莫霍界面（Moho）处密度差为600 kg/m³。 将正演计算得到的重力值从自由空气重力异常数据中扣除，即可得到该地幔布格异常数据。 本次重力测量于2013年在雷克雅内斯海岭（Reykjanes Ridge）南端开展，该海岭是大西洋中脊（Mid-Atlantic Ridge）的一段，数据采集自Langseth科考航次MGL1309，项目研究者为Fernando Martinez与Richard Hey。 本数据集的文件格式为PDF，其生成自名为《北大西洋海底扩张几何重组的热与构造假说检验》的科研项目。 本项目由美国国家科学基金会（National Science Foundation, NSF）资助，资助项目编号为OCE11-54071。