
thumb|right|250px|alt=This is a diagram and related photograph of soil layers from bedrock to soil.|A represents soil; B represents [[laterite, a regolith; C represents saprolite, a less-weathered regolith; beneath C is bedrock.]]
thumb|right|250px|alt=This is a diagram and related photograph of soil layers from bedrock to soil.|A represents soil; B represents [[laterite, a regolith; C represents saprolite, a less-weathered regolith; beneath C is bedrock.]]
Saprolite is a chemically weathered rock. Saprolites form in the lower zones of soil profiles and represent deep weathering of the bedrock surface. In most outcrops, its color comes from ferric compounds. Deeply weathered profiles are widespread on the continental landmasses between latitudes 35°N and 35°S.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).