Benthic stable isotopes of sediment core M94-482 PC@en

Proxy parameter of core M94-482 PC: Benthic stable isotopes of sediment core M94-482 PC. Isotope analyses were performed on the benthic foraminiferal species Uvigerina peregrina. Sedimentological and logging data as well as the foraminiferal analyses were performed on piston core M94-482 PC, which was recovered from the northern Campeche Bank (Gulf of Mexico; 23°49.155'N 87°07.752'W) from 630 m water depth during R/V Meteor Cruise M94 in 2013 (https://doi.org/10.2312/cr_m94). Sampling and analytical studies were carried out from ~0.5 cm to 879 cm core depth at 1-5 cm spatial resolution. The records cover the last ~288 kyrs. The stable carbon (δ13C; ‰ VPDB) and oxygen isotope (δ18O, ‰ VPDB) analyses were performed on a Thermo Scientific MAT 253 mass spectrometer with an automated Kiel IV Carbonate Preparation Device. The isotope data provide stratigraphical information.沉积物岩芯M94-482 PC的替代指标参数：该岩芯的底栖有孔虫（benthic foraminifera）稳定同位素记录。同位素分析以底栖有孔虫物种Uvigerina peregrina为测试对象。沉积物学、测井数据及有孔虫分析均基于活塞岩芯M94-482 PC完成，该岩芯于2013年由'流星号'（R/V Meteor）科考船M94航次在墨西哥湾坎佩切湾北部（23°49.155'N，87°07.752'W）、水深630米处获取，对应DOI链接为https://doi.org/10.2312/cr_m94。采样与分析工作覆盖岩芯深度约0.5 cm至879 cm，空间分辨率为1~5 cm，该记录涵盖了过去约28.8万年。稳定碳同位素（δ¹³C，单位为‰ VPDB）与氧同位素（δ¹⁸O，单位为‰ VPDB）的测试采用赛默飞世尔科技（Thermo Scientific）MAT 253型质谱仪，并搭配自动化Kiel IV碳酸盐制样装置完成。该同位素数据可提供地层学相关信息。