Processed MCS (PSTM) data from the Mid-Atlantic Ridge (MAR) to the Rio Grande Rise, South Atlantic Ocean, acquired by the R/V Marcus G. Langseth in 2016 (MGL1601)

This 2016 R/V Langseth collected seismic reflection and refraction data along a single flowline from the Mid-Atlantic Ridge (MAR) to the Rio Grande Rise in support of the Crustal Reflectivity Experiment Southern Transect (CREST) project. 5 crossline profiles (isochrons) corresponding with the OBS lines, and 2 extra lines crossing (normal to) the ridge were also acquired. An IODP site survey, the objectives included studying the fundamental structure and evolution of oceanic crust, comparing the seismic structure versus the lithology.2016年，朗塞特号科考船（R/V Langseth）沿从大西洋中脊（Mid-Atlantic Ridge, MAR）至里奥格兰德海隆的单条测线采集了地震反射与折射数据，以支撑地壳反射率实验南部断面（Crustal Reflectivity Experiment Southern Transect, CREST）项目。本次科考同时获取了5条与海底地震仪（Ocean Bottom Seismometer, OBS）测线对应的横测线剖面（等时线，isochrons），以及2条垂直横穿洋脊的额外测线。本次数据采集工作还开展了一项国际大洋发现计划（International Ocean Discovery Program, IODP）站位调查，其研究目标包括探究洋壳的基本结构与演化过程，对比地震结构与岩性特征。