Linked from
The 28 pages that link to Soil formation, each with the reason it gives.
BasaltRelated: Weathering of basalt can produce mineral-rich soils, including clay-rich soils.
DecompositionRelated: Decomposition supplies organic material that contributes to soil development.
WeatheringRelated: Weathered rock supplies mineral material that contributes to soil development.
PedosphereRelated: These processes create and continually transform the pedosphere.
DetritivoreRelated: Detritivore fragmentation contributes organic material to developing soils.
Rock cycleRelated: Rock weathering supplies mineral material that becomes part of soil.
PlantRelated: Plant roots, litter, and microbes alter mineral surfaces and build organic-rich soil.
Earth (soil and ground)Related: It explains how bare mineral material becomes layered, living soil.
JulidaRelated: Julid feeding and burrowing help mix organic matter into soil.