Oxygen isotopic composition of interstitial waters from ODP Leg 207 sites

We determined oxygen isotopic compositions of interstitial water (IW) recovered during Ocean Drilling Program Leg 207. Five sites were cored (3200- to 1900-m water depth) on Demerara Rise off Suriname, South America, recovering a Cenomanian-Paleogene sedimentary sequence consisting of black shales and chalks. A total of 115 IW oxygen isotopic analyses are presented.本研究针对大洋钻探计划（Ocean Drilling Program）航次207所回收的孔隙水（interstitial water, IW）开展了氧同位素组成测定。研究团队在南美苏里南近海的德马拉拉海隆布设了5个钻探站位，作业水深范围为1900米至3200米，钻取获得了由黑色页岩与白垩岩组成的森诺曼阶-古近纪沉积序列。本次研究共呈现115组孔隙水氧同位素分析结果。