青藏高原东北缘小水子地区晚中新世-上新世生态演化及其意义
李小苗,吴泽坤,彭廷江,马振华,冯展涛,李孟,郭本泓,宋春晖

Late Miocene-Pliocene ecological evolution on the northeastern Tibetan Plateau and its possible mechanism
Xiaomiao LI,Zekun WU,Tingjiang PENG,Zhenhua MA,Zhantao FENG,Meng LI,Benhong GUO,Chunhui SONG
表1 黄土高原7~3.5 Ma C3和C4植被及其环境下土壤碳酸盐δ13C端元值17
Table 1 7~3.5 Ma δ13C end embers of C3 and C4 vegetation and its soil carbonates on the Chinese Loess Plateau17
年代/Ma植被土壤碳酸盐
13C3/‰13C4/‰13C3/‰13C4/‰
3.5~3.99-25.5-11.0-11.53.1
4.0~4.49-25.6-11.1-11.63.0
4.5~4.99-25.6-11.2-11.73.0
5.0~5.49-25.3-10.8-11.33.3
5.5~5.99-25.3-10.8-11.33.3
6.0~6.49-25.3-10.9-11.43.3
6.5~6.99-25.3-10.9-11.43.3