2017/5/10 15:51:33 1, 2, JIN Zhangdong^{1, 3}, HE Maoyong¹]]> GOU Longfei^{1, 2}, JIN Zhangdong^{1, 3}, HE Maoyong¹ 12true 2025/1/17 0:00:00 LU Hongxuan, SHENG Weijuan, LIU Xu 11true 2025/1/17 0:00:00 ZHANG Qianwen, ZHAO Jiaju 10true 2025/1/17 0:00:00 LI Yue, LI Yudong, SONG Yougui 9true δ¹³C) is an important proxy for the study of carbon cycle and deep ocean circulation in geological history. In this study, we established global δ¹³C stacks for the deep ocean and different water masses, including the North Atlantic deep water and Pacific deep water and Atlantic and Indo-Pacific δ¹³C meridional profiles during Marine Isotope Stage (MIS) 5-1 by compiling 42 δ¹³C records of benthic foraminifera over the past 130 ka, to explore the variations of oceanic inorganic carbon δ¹³C and its correlation with the carbon cycle and meridional circulation in the deep ocean since 130 ka. The results indicate that the global δ¹³C is low (high) in the glacial (interglacial) periods and the amplitude of δ¹³C in the Atlantic Ocean is higher than Pacific Ocean. In addition, the sea surface temperature and sea level were low and δ¹³C was enriched during the Last Glacial Maximum (LGM). By contrast, an opposite situation occurred during the MIS 4. The possible reason for this phenomenon is that the weakened ventilation of the North Atlantic increased the sequestration of atmospheric CO₂ in the deep sea, leading to less atmospheric occurring in MIS 4. However, this conclusion does not consider other biochemical processes in the Southern Ocean, thus we will focus on the interaction of other biochemical processes in the Southern Ocean with the carbon cycle in order to further deepen the understanding of this complex system.]]> 2025/1/17 0:00:00 YANG Mengfei, SUN Yachen, MA Xiaolin 8true 2025/1/17 0:00:00 CHENG Xing, ZANG Jing jie, WANG Yaqin, LI Yanzhen, MA Le, TAN Liangcheng 7true 2025/1/17 0:00:00 ZHANG Qianwen, ZHAO Jiaju 6true 2025/1/17 0:00:00 YANG Kaiyu, ZHAO Nanyu, LI Shutong, HAN Tao, WEN Hanfeng, GENG Jun, YAN Hong 5true 2025/1/17 0:00:00 CAI Zeyuan, WANG Huanye 4true 2025/1/17 0:00:00 HAN Tao, ZHAO Nanyu, ZHOU Pengchao 3true δ¹⁸O) records worldwide during the last 2 ka were chosen, and comprehensive analyses concerning about the geographical distribution, climatic factors, and the range and amplitude were undertaken. Statistics analyses show that the overall range in global cave δ¹⁸O is between −1‰ and −12‰, with the individual amplitude of no more than 3‰. Data integration analyses reveal a quasi-fluctuation period of 30—50 years, and an inclined “Z” shape which is roughly parallel to that in the 2 ka global temperature curve. The characteristics of these integrated records offer a certain profile for the study of global climate change in the past 2 ka. The dataset is storage in excel file.]]> 2025/1/17 0:00:00 LI Xianglei, LIU Jinzhao 2true 2025/1/17 0:00:00 WANG Le, TIAN Rong, WU Xiaohui, LI Haoran, LAN Jianghu 1true