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 breccias are a type of clastic sedimentary rock which are composed of angular to subangular, randomly oriented clasts of other sedimentary rocks. They may form either. 1  in submarine debris flows, avalanches, mud flow or mass flow in an aqueous medium.lastic igneous rocks include pyroclastic volcanic rocks such as tuff, agglomerate and intrusive breccias, as well as some marginal eutaxitic and taxitic intrusive morphologies. Igneous clastic rocks are broken by flow, injection or explosive disruption of solid or semi-solid igneous rocks or lavas.