# Why (or when) to use the log-mean?

I am looking at a scientific paper in which a single measurement is calculated using a logarithmic mean

'triplicate spots were combined to produce one signal by taking the logarithmic mean of reliable spots'

Why choose the log-mean?

Are the authors making an assumption about the underlying distribution?

That it is what...Log-Normal?

Have they just picked something they thought was reasonable... i.e. between a a mean and a geometric mean?

Any thoughts?