General geochemistry data of porewater from GHASS2 cruise

General geochemistry data of porewater from the Romanian sector of the Black Sea. Data collected during GHASS2 Cuise (https://doi.org/10.17600/18001358 ) Data includes: total alkalinity, hydrogen sulphide, methane, δ13C-CH4, δD-CH4, anions and catioins, minor elements, acetate, formate...黑海罗马尼亚辖管海域孔隙水综合地球化学数据集。数据采集自GHASS2航次（GHASS2 Cruise），关联DOI链接：https://doi.org/10.17600/18001358。数据集涵盖总碱度、硫化氢、甲烷、δ¹³C-CH₄、δD-CH₄、阴/阳离子、微量元素、乙酸盐、甲酸盐等参数。