A Neogene-Quaternary magnetic-biostratigraphic reference section in the south of Western Siberia

Plio‐Pleistocene Establishment of Irtysh River in Junggar, Northwest China: Implications for Siberian‐Arctic River System Evolution and Resulting Climate Impact

“…Previous stratigraphic investigations on the western Siberian Plain (WSP, Figure 1a) (Gnibidenko, 2007;Pospelova et al, 1977;Volkova, 2011) showed that during the late Neogene, lacustrine basins had developed in most areas of the southern part of WSP as the result of west-tilting paleotopography of Asia at the time (Wang, 2004). Estimates based on the extent to which the late-Neogene lacustrine deposits occupied and a shallowest thickness of m (Pospelova et al, 1977) suggest an additional freshwater storage of at least 4,000 km 3 in WSP (Figure S5). Besides, after the Siberian rivers began to discharge into the Arctic, the increase in Eurasian moisture, transported by the westerlies since the early Pliocene, would also have enhanced freshwater delivery to the Arctic via the Siberian river system.…”

“…Notably, the Junggar paleolake was likely just one of several reservoirs in Siberia that could have provided huge pulses of freshwater runoff to the Arctic Ocean when the Siberian-Arctic river formed. Previous stratigraphic investigations on the western Siberian Plain (WSP, Figure 1a) (Gnibidenko, 2007;Pospelova et al, 1977;Volkova, 2011) showed that during the late Neogene, lacustrine basins had developed in most areas of the southern part of WSP as the result of west-tilting paleotopography of Asia at the time (Wang, 2004). Estimates based on the extent to which the late-Neogene lacustrine deposits occupied and MA ET AL.…”

“…Previous stratigraphic investigations on the western Siberian Plain (WSP, Fig. 1a) (Gnibidenko, 2007;Pospelova et al, 1977;Volkova, 2011) showed that during the late Neogene, Geophysical Research Letters lacustrine basins had developed in most areas of the southern part of WSP as the result of westtilting paleotopography of Asia at the time (Wang, 2004). Estimates based on the extent to which the late-Neogene lacustrine deposits occupied and a shallowest thickness of ~5 m (Pospelova et al, 1977) suggest an additional freshwater storage of at least 4000 km 3 in WSP (Figure S5).…”

“…10.1029/2021GL093217 9 of 12 a shallowest thickness of ∼5 m (Pospelova et al, 1977) suggest an additional freshwater storage of at least 4,000 km 3 in WSP (Figure S5). Besides, after the Siberian rivers began to discharge into the Arctic, the increase in Eurasian moisture, transported by the westerlies since the early Pliocene, would also have enhanced freshwater delivery to the Arctic via the Siberian river system.…”