Branched glycerol dialkyl glycerol tetraethers distributions from seven loess-paleosol sequences across the Chinese Loess Plateau over the past 40,000 years

In this dataset, the fractional abundance of branched glycerol dialkyl glycerol tetraethers (brGDGTs) and the temperature records based on brGDGT proxy over the past ~40,000 years from seven loess-paleosol sequences on the CLP are included. The brGDGT records for Guojiapan and Bailu are extracted in this study, the brGDGT records for Mangshan has been published based on old analytical method (Peterse et al., 2014), we re-run these samples using the new analytical method for this study, the brGDGT records for Yuanbao (Guo et al., 2024, Climate of the Past), Xifeng (Lu et al., 2019, Nat. Commun.), Lingtai (Fuchs et al., 2022, QSR), and Weinan (Tang et al., 2017, EPSL) are complied from previous publications.

本数据集囊括了距今约40,000年间，基于七条洛川黄土-古土壤序列的支链甘油二烷基甘油四醚（brGDGTs）的分数丰度及其作为温度记录的brGDGT代理数据。本研究中提取了国涧滩与八里堡的brGDGT记录，而关于芒山的brGDGT记录则是基于旧的分析方法（Peterse等人，2014年）已公开发表。本研究中，我们对这些样品重新运行了新的分析方法。同时，元宝（Guo等人，2024年，《过去气候》），锡峰（Lu等人，2019年，《自然通讯》），灵台（Fuchs等人，2022年，《QSR》）以及渭南（Tang等人，2017年，《EPSL》）的brGDGT记录则是由前期发表的文献中汇编而成。