Definitions for "Shale"
Keywords:  sedimentary, mud, fissile, silt, clay
A fine-grained sedimentary rock of a thin, laminated, and often friable, structure.
A very fine grained clastic rock composed of silt and clay that tends to part along bedding planes. (See also Oil shale.)
A laminated sediment in which the constituent particles are composed of clay. Same as mudstone, except mudstone may be composed of a percentage of silt and may or may not be laminated.
Keywords:  siltstone
Keywords:  husk, cod, pod, shell, coat
A shell or husk; a cod or pod.
To take off the shell or coat of; to shell.
the product of complete alteration of iron meteorites to iron oxides by weathering on Earth.