Volcanogenic CO₂ Degassing in the Songliao Continental Rift System, NE China

Figure 1

(a) Geological and tectonic map showing the locations of major faults and Cenozoic basaltic volcanic fields in NE China (modified from Liu et al. [10]). The inset shows the location of Eastern China. Abbreviations of Cenozoic volcanic fields in NE China are as follows: WMVF: Wudalianchi monogenetic volcanic field; XK: Xunke; KL: Keluo; NMH: Nuominhe; XGLH: Xiaogulihe; AES: Aershan; JPH: Jingpohu; LG: Longgang; CBS: Changbaishan; KD: Kuandian; SLB: Songliao basin; NCC: North China craton. (b) Geological map of WMVF (modified from Zhao et al. [23]). (c) Geomorphologic map showing the location of monogenetic volcanoes and cold springs in WMVF. Red dots represent the location of the soil CO₂ flux survey, and the stars represent the sample locations.

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