schist

The predominant clay minerals were kaolinite and illite, formed through the weathering of muscovite, present in both parent materials--quartzite and mica-schist (Araujo et al.

However, finer-textured soils developed from mica-schist at the same altitudes did not differ in SOC retention, which we interpreted as evidence that soil texture affected SOC retention at altitudes near 1060 m and below.

The local geology comprises neoproterozoic mica-schists and quartzites, which build up the Bocaina mountain range, which form a montane landscape with approximate elevation range of 1020-1250 m, with slopes up to 100% (Fig.