Oxygen penetration depth calculated from Manganese porewater sediment profile...

If Mn+-concentration does not increase over the length of the investigated profile, the O2 penetration depth is indicated as the length of the profile (e.g. >300).若在所研究剖面的全程范围内，价态为n+的金属离子浓度未出现升高，则将氧气渗透深度记为该剖面的总长度（例如>300）。