It was a long process, first two rounds of major revision then rejection from the first journal we tried, followed by more major revisions but then acceptance in Chemical Geology. The title of the paper is "Influence of glaciation on mechanisms of mineral weathering in two high Arctic catchments" and can be accessed here.
In the paper we discuss the geochemistry of the two streams along with the S and O isotope data and the bacteria data. Our main conclusion is that bacterially mediated pyrite weathering of silicate and carbonate rocks is a major process in these catchments. Weathering is normally assumed to occur using carbonic acid derived from atmospheric carbon dioxide, so if sulfuric acid (from pyrite weathering) is widespread then it would affect estimates of how much carbon dioxide chemical weathering removes from the atmosphere.