Which of the following is NOT a typical focus of geomorphology?

Geomorphology is primarily concerned with the study of landforms, their processes, and how they evolve over time. This field typically focuses on landform analysis, coastal processes, and mountain formation, as these are all central to understanding the physical landscape and the geological forces shaping it.

Landform analysis involves examining the shapes and distribution of different terrains, revealing insights into the geological history and processes at play. Coastal processes pertain to the dynamics of shorelines, including erosion, sediment transport, and deposition, which significantly influence coastal landforms. Mountain formation studies explore tectonic activities, erosion, and other geological processes that lead to the uplift and creation of mountain ranges.

Soil composition, while important in its own right, falls more under the umbrella of pedology, which deals with soils in their natural environment, rather than the broader and more dynamic landform changes characteristic of geomorphology. Thus, this choice does not align with the typical focuses of geomorphology, making it the correct answer for this question.