Part of the global seawater delta oxygen-18 database from reference Epstein 1953

Correction of data to GEOSECS standard implemented: dVSMOW=1.04dEM+0.21(extra +0.2 for Albatross points). Some positions were read off a graph.已完成数据向GEOSECS标准的校正工作，校正公式为：dVSMOW=1.04dEM+0.21（针对Albatross号科考测点，额外增加0.2的修正量）。部分测点位置系从图表中读取得到。