Stable carbon and oxygen isotope ratios of Planulina wuellerstorfi from sediments of the Vema Channel@en

Oxygen- and carbon-isotopic analyses have been performed on the benthic foraminifer Planulina wuellerstorfi in seven Late Quaternary cores from the Vema Channel-Rio Grande Rise region. The cores are distributed over the water-depth interval of 2340 to 3939 m, which includes the present transition from North Atlantic Deep Water (NADW) to Antarctic Bottom Water (AABW). […]本研究对采自维玛海槽-里奥格兰德海隆区域的7根晚第四纪岩芯中的底栖有孔虫（benthic foraminifer）Planulina wuellerstorfi开展了氧碳同位素分析。这些岩芯的分布水深区间为2340米至3939米，该区间涵盖了当前北大西洋深层水（North Atlantic Deep Water, NADW）与南极底层水（Antarctic Bottom Water, AABW）的过渡带……