Terminology. Many authors prefer the term annular fissure over annular tear, as the latter seems to imply acute injury 1,2. In the setting of severe trauma with disruption of the disc, then the term disc rupture should be used. The term annular gap (referring to a relatively wide annular fissure) is non-standard 2.any authors prefer the term annular fissure over annular tear, as the latter seems to imply acute injury 1,2. In the setting of severe trauma with disruption of the disc, then the term disc rupture should be used.
Sedimentary rocks tend to be more porous than igneous rocks because there is more open space between the individual sediment grains than between the minerals in a crystallized â¦ rock.Porosity of rocks  Consolidated rocks (e.g. sandstone, shale, granite or limestone) potentially have more complex dual porosities, as compared with alluvial sediment.
Sedimentary rocks are most often lithified sediments, the origin of which may be from igneous, metamorphic, or other sedimentary rock, and in some cases chemical solutions or â¦ organic matter. Erosion and weathering of rock creates a range of rock particles from boulder sized to microscopic.edimentary rock is formed from the lithification of rock particles, so a sedimentary rock can be composed of particles of various sizes, types, and textures of rock as is the case with conglomerates and breccias. Sedimentary rock can also contain fossils of ancient marine organisms upon close examination.