The formation of NaAlCO3 (OH)2 in the. Hailar Basin was related to CO2 Pressure, and all N NaAlCO 3(OH) 2-bearing wells are distributed in high value areas of CO 2 pr essu re.

• 海拉尔盆地碳钠铝石的形成与CO2的分压有关，含有碳钢铝石的井都分布于CO2分压的高值区；