saprolite

noun 0.656

black mud

noun 0.577

saprophyte

noun 0.573

kerogen

noun 0.557

peatland

noun 0.554

pomace

noun 0.540

paleosol

noun 0.532

black shale

noun 0.522

phytodetritus

noun 0.522

sludge

noun 0.519

sap

noun 0.510

sump oil

noun 0.507

coprolite

noun 0.505

adipocere

noun 0.503

necromass

noun 0.502

humate

noun 0.501

slopewash

noun 0.501