Gravity Models Suggest Fluid Associated with Mississippi Embayment Conductive and Low Seismic Velocity Anomalies in the Crust and Mantle by Chris H. Cramer

Text files for gravity observations along four magnetotelluric (MT) profiles (deepmtgrav.txt, idprfgrav.txt, m1prfgrav.txt, and ufprfgrav.txt) of Sarker and Cramer (2025a) and one seismic velocity profile (gengcprfgrav.txt) of Geng et al. (2020). The text file NMSZaxial2022-23.txt contains additional complete Bouguer gravity observations at and near MT stations of Sarker and Cramer (2025a) to supplement published USGS regional gravity observations in the central US. These data were used in gravity modeling of crustal conductive and mantle seismic velocity anomalies in and below the Mississippi embayment. Paper describing the gravity modeling by the same title is being submitted to JGR Solid Earth.本数据集包含Sarker与Cramer（2025a）所使用的4条大地电磁（magnetotelluric, MT）剖面对应的重力观测文本文件（deepmtgrav.txt、idprfgrav.txt、m1prfgrav.txt与ufprfgrav.txt），以及Geng等人（2020）的1条地震速度剖面文件（gengcprfgrav.txt）。文本文件NMSZaxial2022-23.txt包含了Sarker与Cramer（2025a）所用MT测站及其邻近区域的完整布格重力（Bouguer gravity）补充观测数据，用于补全美国中部地区已公开的美国地质调查局（United States Geological Survey, USGS）区域重力观测资料。上述数据被应用于密西西比坳陷内部及下方的地壳导电异常与地幔地震速度异常的重力模拟研究。相关重力模拟研究的同标题论文已提交至《地球物理研究杂志：固体地球》（JGR Solid Earth）。