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大别－胶南造山带温泉气中的CO2含量较低（多数在1．00％以下）．δ13C变化范因为－20．34‰至－3．0‰，主要为源于地壳浅层的有机成因气。整个造山带各温泉气体成分均以N2为主（90％左右），其来源除大气N2以外，可能为地壳岩石释放或地层中有机体演化形成。稀有气体同位素组成表明，Ar主要来源于大气，He为壳内岩石放射成因。本区温泉气体地球化学特征可能与现今中国东部的构造应力场有关，即大别－胶南造山带可能正处于紧密挤缩的构造环境，难以形成深部幔源气体脱排和运移的通道。本区温泉气的研究不仅有助于探讨天然气地质理论，而且有助于揭示造山带现今的构造运动、岩浆活动和水文地球化学特征。
Dabie - Jiaonan orogenic hot spring gas in the lower CO2 content (mostly below 1.00%). The δ13C variation ranged from -20.34 ‰ to -3.0 ‰, mainly due to organic gas originating from shallow crust. All the orogenic gases in the whole orogenic belt are dominated by N2 (about 90%), except for the source of N2, which may be the release of crustal rocks or the evolution of organisms in the formation. The isotopic composition of rare gas shows that Ar is mainly derived from the atmosphere and He is the radiogenic cause of rock in the crust. The geochemical characteristics of the hot spring gas in this area may be related to the tectonic stress field in the eastern part of China at present. That is, the Dabie-Jiaonan orogenic belt may be in a tight crustal tectonic setting and it is difficult to form a channel for the deep mantle-derived gas to desorb and migrate. The study of hot spring gas in this area not only helps to explore the theory of natural gas geology, but also helps to reveal the tectonic movement, magmatic activity and hydrogeochemical characteristics of the orogenic belt today.